Anaerobic pressure sensitive adhesive stocks

Claim 2

An anaerobic pressure sensitive adhesive stock comprising: a. a first release coating on a self-supporting release liner; b. a transferable and curable pressure sensitive adhesive layer having one surface in contact with said first release coating, said pressure sensitive adhesive layer comprising: i. from about 9 to about 95 percent by weight of the layer of a thermoplastic resin system containing at least one thermoplastic polymer selected from the group consisting of vinyl homopolymers, vinyl copolymers, polyurethanes, polyesters, polyamides, acrylic polymers, natural elastomers, and synthetic elastomers; ii. from about 4 to about 40 percent by weight of the layer of a first anaerobic resin system, containing at least one curable anaerobic resin having a viscosity from about 5 to about 1000 cps at 25° C. and a vinyl equivalent number from about 80 to about 2000 and from 0 to about 80 percent by weight of the layer of a second anaerobic resin system containing at least one of a curable anaerobic resin having a viscosity greater than 1000 cps at 25° C., at least one anaerobic resin in the first and second anaerobic resin system containing at least two polymerizable acrylic ester groups, each individually having the formula: ##STR9## wherein R 2 is a radical selected from the group consisting of hydrogen, halogen and a lower alkyl containing from 1 to about 4 carbon atoms, the said anaerobic resins being present in an amount of from about 4 to about 90 percent by weight of the layer; iii. from about 0.1 to about 10 percent by weight of the layer of a peroxy initiator to initiate cure of the contained anaerobic resins upon the substantial exclusion of oxygen; and iv. from 0 to about 10 percent by weight of the layer of an organonitrogen compound as a latent accelerator in the cure of the contained anaerobic resins, and said pressure sensitive adhesive layer providing a static shear strength of at least 10 minutes at a 250 gram load per 0.25 square inch, a 180° peel value of at least about 2 pounds; a Polyken tack of at least about 700 gram and a loop tack of at least about 1.5 lbs. per in 2 prior to cure of said anaerobic resin system; and c. a second release coating on a self-supporting release liner in contact with the opposed surface of said transferable pressure sensitive adhesive layer, the bond of the first release coating to the transferable pressure sensitive adhesive layer being less than the cohesive strength of said pressure sensitive adhesive layer and exceeding the bond of said second release coating for said pressure sensitive adhesive layer to permit the pressure sensitive adhesive layer to be preferentially separated from said second release coating for application and bonding to a substrate prior to separation of the pressure sensitive adhesive layer from said first release coating without cohesive failure of said pressure sensitive adhesive layer.

Claim 3

An anaerobic pressure sensitive adhesive stock as claimed in claim 1 in which the anaerobic resin having a viscosity from about 5 to about 1000 cps at 25° C. is selected from the group consisting of triethylene glycol dimethacrylate, epoxylated 2,2-bis (4-hydroxyphenyl) propane dimethacrylate, and mixtures thereof.

Claim 4

An anaerobic pressure sensitive adhesive stock as claimed in claim 2 in which the anaerobic resin having a viscosity greater than about 1000 cps at 25° C. is selected from the group consisting of a reaction product of two moles of hydroxypropyl methacrylate and one mole of methylene-bis-phenyl-4,4'-diisocyanate, the polymer formed by hydroxypropyl methacrylate capping of a 1:1 adduct of toluene diisocyanate and hydroxylated 2,2-bis (4-hydroxyphenyl) propane.

Claim 5

An anaerobic pressure sensitive adhesive stock as claimed in claim 3 in which the vinyl copolymer is a copolymer containing vinylpyrrolidone.

Claim 6

An anaerobic pressure sensitive adhesive as claimed in claim 4 in which the organonitrogen compound is saccharin.

Claim 7

An anaerobic pressure sensitive adhesive stock as claimed in claim 1 in which the anaerobic resin having a viscosity greater than about 1000 cps at 25° C. is selected from the group consisting of a reaction product of two moles of hydroxypropyl methacrylate and one mole of methylene-bis-phenyl-4,4'-diisocyanate, the polymer formed by hydroxypropyl methacrylate capping of a 1:1 adduct of toluene diisocyanate and hydroxylated 2,2-bis (4-hydroxyphenyl) propane.

Claim 8

An anaerobic pressure sensitive adhesive stock as claimed in claim 1 in which the vinyl copolymer is a copolymer containing vinylpyrrolidone.

Claim 9

An anaerobic pressure sensitive adhesive as claimed in claim 1 in which the organonitrogen compound is saccharin.

Claim 10

An anaerobic pressure sensitive adhesive stock as claimed in claim 1 in which the first release coating and the second release coatings are contained on opposed sides of a common release liner and the stock is formed into a roll, said second release coating being on the undersurface of said release liner.

Claim 11

An anaerobic pressure sensitive adhesive stock as claimed in claim 1 in which the first and second release coatings are contained on separate release liners.

Claim 12

An anaerobic pressure sensitive adhesive stock as claimed in claim 1 in which the pressure sensitive adhesive layer including the curable anaerobic resin system comprises a first pressure sensitive adhesive layer separated at least in part from a second pressure sensitive adhesive layer by an interlayer to which the two pressure sensitive adhesive layers are secured, said interlayer providing support for said first and second pressure sensitive adhesive layers.

Claim 13

An anaerobic pressure sensitive adhesive stock as claimed in claim 1 in which the pressure sensitive adhesive layer is heterogeneous and which includes pressure sensitive adhesive segments containing at least one of said thermoplastic polymers contiguous to viscoelastic anaerobic resin segments, said viscoelastic anaerobic resin segments having sufficient cohesive strength to prevent film splitting during transfer.

Claim 14

An anaerobic pressure sensitive adhesive stock as claimed in claim 1 in which the anaerobic resins are present in an amount of from about 35 to about 60 percent by weight based on the total weight of the layer.

Claim 15

An anaerobic pressure sensitive adhesive stock comprising: a. a first release coating on a self-supporting release liner; b. a transferable and curable pressure sensitive adhesive layer having one surface in contact with said first release coating, said pressure sensitive adhesive layer comprising: i. from about 9 to about 95 percent by weight of the layer of a thermoplastic resin system containing at least one thermoplastic polymer selected from the group consisting of vinyl homopolymers, vinyl copolymers, polyurethanes, polyesters, polyamides, acrylic polymers, natural elastomers, and synthetic elastomers and including a tackifier; ii. from about 4 to about 40 percent by weight of the layer of a first anaerobic resin system, containing at least one curable anaerobic resin having a viscosity from about 5 to about 1000 cps at 25° C. and a vinyl equivalent number from about 80 to about 2000 and from 0 to about 80 percent by weight of the layer of a second anaerobic resin system containing at least one of a curable anaerobic resin having a viscosity greater than 1000 cps at 25° C., at least one anaerobic resin in the first and second anaerobic resin system containing at least two polymerizable acrylic ester groups, each individually having the formula: ##STR10## wherein R 2 is a radical selected from the group consisting of hydrogen, halogen and a lower alkyl containing from 1 to about 4 carbon atoms, the said anaerobic resins being present in an amount of from about 4 to about 90 percent by weight of the layer; iii. from about 0.1 to about 10 percent by weight of the layer of a peroxy initiator to initiate cure of the contained anaerobic resins upon the substantial exclusion of oxygen; and iv. from 0 to about 10 percent by weight of the layer of an organonitrogen compound as a latent accelerator in the cure of the contained anaerobic resins; said pressure sensitive adhesive layer providing a static shear strength of at least 10 minutes at a 250 gram load per 0.25 square inch, a 180° peel value of at least about 2 pounds; a Polyken tack of at least about 700 gram and a loop tack of at least about 1.5 lbs. per in 2 prior to cure of said anaerobic resin system; and c. a second release coating on a self-supporting release liner in contact with the opposed surface of said transferable pressure sensitive adhesive layer, the bond of the first release coating to the transferable pressure sensitive adhesive layer being less than the cohesive strength of said pressure sensitive adhesive layer and exceeding the bond of said second release coating for said pressure sensitive adhesive layer to permit the pressure sensitive adhesive layer including the thermoplastic polymer system, the anaerobic resin system, and the catalyst system to be preferentially separated from said second release coating for application and bonding to a substrate prior to separation of the pressure sensitive adhesive layer from said first release coating without cohesive failure of said pressure sensitive adhesive layer.

Claim 16

An anaerobic pressure sensitive adhesive stock comprising: a. a first release coating on a self-supporting release liner; b. a transferable and curable pressure sensitive adhesive layer having one surface in contact with said first release coating, said pressure sensitive adhesive layer comprising: i. from about 9 to about 95 percent by weight of the layer of a thermoplastic resin system containing at least one thermoplastic polymer selected from the group consisting of vinyl homopolymers, vinyl copolymers, polyurethanes, polyesters, polyamides, acrylic polymers, natural elastomers, and synthetic elastomers and including a tackifier; ii. from about 4 to about 40 percent by weight of the layer of a first anaerobic resin system, containing at least one curable anaerobic resin having a viscosity from about 5 to about 1000 cps at 25° C. and a vinyl equivalent number from about 80 to about 2000 and from 0 to about 80 percent by weight of the layer of a second anaerobic resin system containing at least one of a curable anaerobic resin having a viscosity greater than 1000 cps at 25° C., at least one anaerobic resin in the first and second anaerobic resin system containing at least two polymerizable acrylic ester groups, each individually having the formula: ##STR10## wherein R 2 is a radical selected from the group consisting of hydrogen, halogen and a lower alkyl containing from 1 to about 4 carbon atoms, the said anaerobic resins being present in an amount of from about 4 to about 90 percent by weight of the layer; iii. from about 0.1 to about 10 percent by weight of the layer of a peroxy initiator to initiate cure of the contained anaerobic resins upon the substantial exclusion of oxygen; and iv. from 0 to about 10 percent by weight of the layer of an organonitrogen compound as a latent accelerator in the cure of the contained anaerobic resins; said pressure sensitive adhesive layer providing a static shear strength of at least 10 minutes at a 250 gram load per 0.25 square inch, a 180° peel value of at least about 2 pounds; a Polyken tack of at least about 700 gram and a loop tack of at least about 1.5 lbs. per in 2 prior to cure of said anaerobic resin system; and c. a second release coating on a self-supporting release liner in contact with the opposed surface of said transferable pressure sensitive adhesive layer, the bond of the first release coating to the transferable pressure sensitive adhesive layer being less than the cohesive strength of said pressure sensitive adhesive layer and exceeding the bond of said second release coating for said pressure sensitive adhesive layer to permit the pressure sensitive adhesive layer including the thermoplastic polymer system, the anaerobic resin system, and the catalyst system to be preferentially separated from said second release coating for application and bonding to a substrate prior to separation of the pressure sensitive adhesive layer from said first release coating without cohesive failure of said pressure sensitive adhesive layer.

Claim 17

An anaerobic pressure sensitive adhesive stock as claimed in claim 14 in which the anaerobic resin having a viscosity from about 5 to about 1000 cps at 25° C. is selected from the group consisting of triethylene glycol dimethacrylate, epoxylated 2,2-bis (4-hydroxyphenyl) propane dimethacrylate, and mixtures thereof.

Claim 18

An anaerobic pressure sensitive adhesive stock as claimed in claim 14 in which the anaerobic resin having a viscosity greater than about 1000 cps at 25° C. is selected from the group consisting of a reaction product of two moles of hydroxypropyl methacrylate and one mole of methylene-bis-phenyl-4,4'-diisocyanate, the polymer formed by hydroxypropyl methacrylate capping of a 1:1 adduct of toluene diisocyanate and hydroxylated 2,2-bis (4-hydroxyphenyl) propane.

Claim 19

An anerobic pressure sensitive adhesive stock as claimed in claim 14 in which the anaerobic resin having a viscosity greater than about 1000 cps at 25° C. is selected from the group consisting of a reaction product of two moles of hydroxypropyl methacrylate and one mole of methylene-bis-phenyl-4,4'-diisocyanate, the polymer formed by hydroxypropyl methacrylate capping of a 1:1 adduct of toluene diisocyanate and hydroxylated 2,2-bis (4-hydroxyphenyl) propane.

Claim 20

An anaerobic pressure sensitive adhesive stock as claimed in claim 17 in which the vinyl copolymer is a copolymer containing vinylpyrrolidone.

Claim 21

An anaerobic pressure sensitive adhesive as claimed in claim 18 in which the organonitrogen compound is saccharin.

Claim 22

An anaerobic pressure sensitive adhesive stock as claimed in claim 14 in which the first and second release coatings are contained on separate release liners.

Claim 23

An anaerobic pressure sensitive adhesive stock as claimed in claim 14 in which the vinyl copolymer is a copolymer containing vinylpyrrolidone.

Claim 24

An anaerobic pressure sensitive adhesive as claimed in claim 14 in which the organonitrogen compound is saccharin.

Claim 25

An anaerobic pressure sensitive adhesive stock as claimed in claim 14 in which the first release coating and the second release coatings are contained on opposed sides of a common release liner and the stock is formed into a roll, said second release coating being on the undersurface of said release liner.

Claim 26

An anaerobic pressure sensitive adhesive stock as claimed in claim 14 in which the pressure sensitive adhesive layer including the curable anaerobic resin system comprises a first pressure sensitive adhesive layer separated at least in part from a second pressure sensitive adhesive layer by an interlayer to which the two pressure sensitive adhesive layers are secured, said interlayer providing support for said first and second pressure sensitive adhesive layers.

Claim 27

An anaerobic pressure sensitive adhesive stock as claimed in claim 14 in which the pressure sensitive adhesive layer is heterogeneous and which includes pressure sensitive adhesive segments containing at least one of said thermoplastic polymers contiguous to viscoelastic anaerobic resin systems, said viscoelastic anaerobic resin segments having sufficient cohesive strength to prevent film splitting during transfer.

Claim 28

An anaerobic pressure sensitive adhesive stock as claimed in claim 14 in which the anaerobic resins are present in an amount of from about 35 to about 60 percent by weight based on the total weight of the layer.

Claim 29

An anaerobic pressure sensitive adhesive stock comprising: a. a first release coating on a self-supporting release liner; b. a transferable and curable pressure sensitive adhesive layer having one surface in contact with said first release coating, said pressure sensitive adhesive layer being a homogeneous mixture comprising: i. from about 9 to about 95 percent by weight of the layer of a thermoplastic resin system containing at least one thermoplastic polymer selected from the group consisting of vinyl homopolymers, vinyl copolymers, polyurethanes, polyesters, polyamides, acrylic polymers, natural elastomers, and synthetic elastomers; ii. from about 4 to about 40 percent by weight of the layer of a first anaerobic resin system, containing at least one curable anaerobic resin having a viscosity from about 5 to about 1000 cps at 25° C. and a vinyl equivalent number from about 80 to about 2000 and from 0 to about 80 percent by weight of the layer of a second anaerobic resin system containing at least one of a curable anaerobic resin having a viscosity greater than 1000 cps at 25° C., at least one anaerobic resin in the first and second anaerobic resin system containing at least two polymerizable acrylic ester groups, each individually having the formula: ##STR11## wherein R 2 is a radical selected from the group consisting of hydrogen, halogen and a lower alkyl containing from 1 to about 4 carbon atoms, the said anaerobic resins being present in an amount of from about 4 to about 90 percent by weight of the layer; iii. from about 0.1 to about 10 percent by weight of the layer of a peroxy initiator to initiate cure of the contained anaerobic resins upon the substantial exclusion of oxygen; and iv. from 0 to about 10 percent by weight of the layer of an organonitrogen compound as a latent accelerator in the cure of the contained anaerobic resins; said pressure sensitive adhesive layer providing a static shear strength of at least 10 minutes at a 250 gram load per 0.25 square inch, a 180° peel value of at least about 2 pounds; a Polyken tack of at least about 700 gram and a loop tack of at least about 1.5 lbs. per in 2 prior to cure of said anaerobic resin system; and c. a second release coating on a self-supporting release liner in contact with the opposed surface of said transferable pressure sensitive adhesive layer, the bond of the first release coating to the transferable pressure sensitive adhesive layer being less than the cohesive strength of said pressure sensitive adhesive layer and exceeding the bond of said second release coating for said pressure sensitive adhesive layer to permit the pressure sensitive adhesive layer to be preferentially separated from said second release coating for application and bonding to a substrate prior to separation of the pressure sensitive adhesive layer from said first release coating without cohesive failure of said pressure sensitive adhesive layer.

Claim 30

An anaerobic pressure sensitive adhesive stock comprising: a. a first release coating on a self-supporting release liner; b. a transferable and curable pressure sensitive adhesive layer having one surface in contact with said first release coating, said pressure sensitive adhesive layer being a homogeneous mixture comprising: i. from about 9 to about 95 percent by weight of the layer of a thermoplastic resin system containing at least one thermoplastic polymer selected from the group consisting of vinyl homopolymers, vinyl copolymers, polyurethanes, polyesters, polyamides, acrylic polymers, natural elastomers, and synthetic elastomers; ii. from about 4 to about 40 percent by weight of the layer of a first anaerobic resin system, containing at least one curable anaerobic resin having a viscosity from about 5 to about 1000 cps at 25° C. and a vinyl equivalent number from about 80 to about 2000 and from 0 to about 80 percent by weight of the layer of a second anaerobic resin system containing at least one of a curable anaerobic resin having a viscosity greater than 1000 cps at 25° C., at least one anaerobic resin in the first and second anaerobic resin system containing at least two polymerizable acrylic ester groups, each individually having the formula: ##STR11## wherein R 2 is a radical selected from the group consisting of hydrogen, halogen and a lower alkyl containing from 1 to about 4 carbon atoms, the said anaerobic resins being present in an amount of from about 4 to about 90 percent by weight of the layer; iii. from about 0.1 to about 10 percent by weight of the layer of a peroxy initiator to initiate cure of the contained anaerobic resins upon the substantial exclusion of oxygen; and iv. from 0 to about 10 percent by weight of the layer of an organonitrogen compound as a latent accelerator in the cure of the contained anaerobic resins; said pressure sensitive adhesive layer providing a static shear strength of at least 10 minutes at a 250 gram load per 0.25 square inch, a 180° peel value of at least about 2 pounds; a Polyken tack of at least about 700 gram and a loop tack of at least about 1.5 lbs. per in 2 prior to cure of said anaerobic resin system; and c. a second release coating on a self-supporting release liner in contact with the opposed surface of said transferable pressure sensitive adhesive layer, the bond of the first release coating to the transferable pressure sensitive adhesive layer being less than the cohesive strength of said pressure sensitive adhesive layer and exceeding the bond of said second release coating for said pressure sensitive adhesive layer to permit the pressure sensitive adhesive layer to be preferentially separated from said second release coating for application and bonding to a substrate prior to separation of the pressure sensitive adhesive layer from said first release coating without cohesive failure of said pressure sensitive adhesive layer.

Claim 31

An anaerobic pressure sensitive adhesive stock as claimed in claim 27 in which the anaerobic resin having a viscosity from about 5 to about 1000 cps at 25° C. is selected from the group consisting of triethylene glycol dimethacrylate, epoxylated 2,2-bis (4-hydroxyphenyl) propane dimethacrylate, and mixtures thereof.

Claim 32

An anaerobic pressure sensitive adhesive stock as claimed in claim 28 in which the anaerobic resin having a viscosity greater than about 1000 cps at 25° C. is selected from the group consisting of a reaction product of two moles of hydroxypropyl methacrylate and one mole of methylene-bis-phenyl-4,4'-diisocyanate, the polymer formed by hydroxypropyl methacrylate capping of a 1:1 adduct of toluene diisocyanate and hydroxylated 2,2-bis (4-hydroxyphenyl) propane.

Claim 33

An anaerobic pressure sensitive adhesive stock as claimed in claim 29 in which the vinyl copolymer is a copolymer containing vinylpyrrolidone.

Claim 34

An anaerobic pressure sensitive adhesive as claimed in claim 30 in which the organonitrogen compound is saccharin.

Claim 35

An anaerobic pressure sensitive adhesive stock as claimed in claim 27 in which the anaerobic resin having a viscosity greater than about 1000 cps at 25° C. is selected from the group consisting of a reaction product of two moles of hydroxypropyl methacrylate and one mole of methylene-bis-phenyl-4,4'-diisocyanate, the polymer formed by hydroxypropyl methacrylate capping of a 1:1 adduct of toluene diisocyanate and hydroxylated 2,2-bis (4-hydroxyphenyl) propane.

Claim 36

An anaerobic pressure sensitive adhesive stock as claimed in claim 27 in which the vinyl copolymer is a copolymer containing vinylpyrrolidone.

Claim 37

An anaerobic pressure sensitive adhesive as claimed in claim 27 in which the organonitrogen compound is saccharin.

Claim 38

An anaerobic pressure sensitive adhesive stock as claimed in claim 27 in which the first release coating and the second release coatings are contained on opposed sides of common release liner and the stock is formed into a roll, said second release coating being on the undersurface of said release liner.

Claim 39

An anaerobic pressure sensitive adhesive stock as claimed in claim 27 in which the first and second release coatings are contained on separate release liners.

Claim 40

An anaerobic pressure sensitive adhesive stock as claimed in claim 27 in which the pressure sensitive adhesive layer including the curable anaerobic resin system comprises a first pressure sensitive adhesive layer separated at least in part from a second pressure sensitive adhesive layer by an interlayer to which the two pressure sensitive adhesive layers are secured, said interlayer providing support for said first and second pressure sensitive adhesive layers.

Claim 41

An anaerobic pressure sensitive adhesive stock as claimed in claim 27 in which the anaerobic resins are present in an amount of from about 35 to about 60 percent by weight based on the total weight of the layer.

Claim 42

An anaerobic pressure sensitive adhesive stock comprising: a. a first release coating on a self-supporting release liner; b. a transferable and curable pressure sensitive adhesive layer having one surface in contact with said first release coating, said pressure sensitive adhesive layer being a homogeneous mixture comprising: i. from about 9 to about 95 percent by weight of the layer of a thermoplastic resin system containing at least one thermoplastic polymer selected from the group consisting of vinyl homopolymers, vinyl copolymers, polyurethanes, polyesters, polyamides, acrylic polymers, natural elastomers, and synthetic elastomers and including a tackifier; ii. from about 4 to about 40 percent by weight of the layer of a first anaerobic resin system, containing at least one curable anaerobic resin having a viscosity from about 5 to about 1000 cps at 25° C. and a vinyl equivalent number from about 80 to about 2000 and from 0 to about 80 percent by weight of the layer of a second anaerobic resin system containing at least one of a curable anaerobic resin having a viscosity greater than 1000 cps at 25° C., at least one anaerobic resin in the first and second anaerobic resin system containing at least two polymerizable acrylic ester groups, each individually having the formula: ##STR12## wherein R 2 is a radical selected from the group consisting of hydrogen, halogen and a lower alkyl containing from 1 to about 4 carbon atoms, the said anaerobic resins being present in an amount of from about 4 to about 90 percent by weight of the layer; iii. from 0 to about 10 percent by weight of the layer of an organonitrogen compound as a latent accelerator in the cure of the contained anaerobic resins, and iv. from about 0.1 to about 10 percent by weight of the layer of a peroxy initiator to initiate cure of the contained anaerobic resins upon the substantial exclusion of oxygen; said pressure sensitive adhesive layer providing a static shear strength of at least 10 minutes at a 250 gram load per 0.25 square inch, a 180° peel value of at least about 2 pounds; a Polyken tack of at least about 700 gram and a loop tack of at least about 1.5 lbs. per in 2 prior to cure of said anaerobic resin system; and c. a second release coating on a self-supporting release liner in contact with the opposed surface of said transferable pressure sensitive adhesive layer, the bond of the first release coating to the transferable pressure sensitive adhesive layer being less than the cohesive strength of said pressure sensitive adhesive layer and exceeding the bond of said second release coating for said pressure sensitive adhesive layer to permit the pressure sensitive adhesive layer to be preferentially separated from said second release coating for application and bonding to a substrate prior to separation of the pressure sensitive adhesive layer from said first release coating without cohesive failure of said pressure sensitive adhesive layer.

Claim 43

An anaerobic pressure sensitive adhesive stock comprising: a. a first release coating on a self-supporting release liner; b. a transferable and curable pressure sensitive adhesive layer having one surface in contact with said first release coating, said pressure sensitive adhesive layer being a homogeneous mixture comprising: i. from about 9 to about 95 percent by weight of the layer of a thermoplastic resin system containing at least one thermoplastic polymer selected from the group consisting of vinyl homopolymers, vinyl copolymers, polyurethanes, polyesters, polyamides, acrylic polymers, natural elastomers, and synthetic elastomers and including a tackifier; ii. from about 4 to about 40 percent by weight of the layer of a first anaerobic resin system, containing at least one curable anaerobic resin having a viscosity from about 5 to about 1000 cps at 25° C. and a vinyl equivalent number from about 80 to about 2000 and from 0 to about 80 percent by weight of the layer of a second anaerobic resin system containing at least one of a curable anaerobic resin having a viscosity greater than 1000 cps at 25° C., at least one anaerobic resin in the first and second anaerobic resin system containing at least two polymerizable acrylic ester groups, each individually having the formula: ##STR12## wherein R 2 is a radical selected from the group consisting of hydrogen, halogen and a lower alkyl containing from 1 to about 4 carbon atoms, the said anaerobic resins being present in an amount of from about 4 to about 90 percent by weight of the layer; iii. from 0 to about 10 percent by weight of the layer of an organonitrogen compound as a latent accelerator in the cure of the contained anaerobic resins, and iv. from about 0.1 to about 10 percent by weight of the layer of a peroxy initiator to initiate cure of the contained anaerobic resins upon the substantial exclusion of oxygen; said pressure sensitive adhesive layer providing a static shear strength of at least 10 minutes at a 250 gram load per 0.25 square inch, a 180° peel value of at least about 2 pounds; a Polyken tack of at least about 700 gram and a loop tack of at least about 1.5 lbs. per in 2 prior to cure of said anaerobic resin system; and c. a second release coating on a self-supporting release liner in contact with the opposed surface of said transferable pressure sensitive adhesive layer, the bond of the first release coating to the transferable pressure sensitive adhesive layer being less than the cohesive strength of said pressure sensitive adhesive layer and exceeding the bond of said second release coating for said pressure sensitive adhesive layer to permit the pressure sensitive adhesive layer to be preferentially separated from said second release coating for application and bonding to a substrate prior to separation of the pressure sensitive adhesive layer from said first release coating without cohesive failure of said pressure sensitive adhesive layer.

Claim 44

An anaerobic pressure sensitive adhesive stock as claimed in claim 39 in which the anaerobic resin having a viscosity from about 5 to about 1000 cps at 25° C. is selected from the group consisting of triethylene glycol dimethacrylate, epoxylated 2,2-bis (4-hydroxyphenyl) propane dimethacrylate, and mixtures thereof.

Claim 45

An anaerobic pressure sensitive adhesive stock as claimed in claim 40 in which the vinyl copolymer is a copolymer containing vinylpyrrolidone.

Claim 46

An anaerobic pressure sensitive adhesive stock as claimed in claim 40 in which the anaerobic resin having a viscosity greater than about 1000 cps at 25° C. is selected from the group consisting of a reaction product of two moles of hydroxypropyl methacrylate and one mole of methylene-bis-phenyl-4,4'-diisocyanate, the polymer formed by hydroxypropyl methacrylate capping of a 1:1 adduct of toluene diisocyanate and hydroxylated 2,2-bis (4-hydroxyphenyl) propane.

Claim 47

An anaerobic pressure sensitive adhesive as claimed in claim 42 in which the organonitrogen compound is saccharin.

Claim 48

An anaerobic pressure sensitive adhesive stock as claimed in claim 39 in which the anaerobic resin having a viscosity greater than about 1000 cps at 25° C. is selected from the group consisting of a reaction product of two moles of hydroxypropyl methacrylate and one mole of methylene-bis-phenyl-4,4'-diisocyanate, the polymer formed by hydroxypropyl methacrylate capping of a 1:1 adduct of toluene diisocyanate and hydroxylated 2,2-bis (4-hydroxyphenyl) propane.

Claim 49

An anaerobic pressure sensitive adhesive stock as claimed in claim 39 in which the vinyl copolymer is a copolymer containing vinylpyrrolidone.

Claim 50

An anaerobic pressure sensitive adhesive as claimed in claim 39 in which the organonitrogen compound is saccharin.

Claim 51

An anaerobic pressure sensitive adhesive stock as claimed in claim 39 in which the first release coating and the second release coatings are contained on opposed sides of a common release liner and the stock is formed into a roll, said second release coating being on the undersurface of said release liner.

Claim 52

An anaerobic pressure sensitive adhesive stock as claimed in claim 39 in which the first and second release coatings are contained on separate release liners.

Claim 53

An anaerobic pressure sensitive adhesive stock as claimed in claim 39 in which the pressure sensitive adhesive layer including the curable anaerobic resin system comprises a first pressure sensitive adhesive layer separated at least in part from a second pressure sensitive adhesive layer by an interlayer to which the two pressure sensitive adhesive layers are secured, said interlayer providing support for said first and second pressure sensitive adhesive layers.

Claim 54

An anaerobic pressure sensitive adhesive stock as claimed in claim 39 in which the anaerobic resins are present in an amount of from about 35 to about 60 percent by weight based on the total weight of the layer.