US5942073A — Siloxane-modified adhesive/adherend systems

Claim 1

Independent Claim 64 words

An adhesive/adherend system comprising: an adhesive component comprising siloxane groups distributed therein wherein the adhesive component is prepared by combining: an epoxy resin; with an organosilane ingredient; a polysiloxane resin; an amine hardener; an organometallic catalyst; and a base catalyst; and an adherend component fabricated from a material comprising siloxane groups distributed therein, wherein the adhesive component is in contact with the adherend component.

Claim 2

Dependent Claim 64 words

An adhesive/adherend system comprising: an adhesive component comprising siloxane groups distributed therein wherein the adhesive component is prepared by combining: an epoxy resin; with an organosilane ingredient; a polysiloxane resin; an amine hardener; an organometallic catalyst; and a base catalyst; and an adherend component fabricated from a material comprising siloxane groups distributed therein, wherein the adhesive component is in contact with the adherend component.

Claim 3

Dependent Claim 33 words

The adhesive/adherend system as recited in claim 1 wherein the epoxy resin is selected from the group consisting of aliphatic, cycloaliphatic and aromatic epoxy resins having greater than one epoxide group per molecule.

Claim 4

Dependent Claim 105 words

The adhesive/adherend system as recited in claim 1 wherein the organosilane ingredient has a weight average molecular weight of from about 90 to 500, and is selected from the group consisting of epoxy silanes, aminosilanes, mercaptosilanes, vinyl silanes, acryl, and methacrylic silanes having the following general formula: ##STR6## where "Y" is an organo-functional group selected from ##STR7## where R 3 is selected from the group consisting of alkyl, cycloalkyl, alkylaryl, alkenyl, aryl aminoalkyl, aminoaryl, and aminocycloalkyl groups having up to about ten carbon atoms, and where each R 4 group is independently selected from the group consisting of alkyl, cycloalkyl, aryl, alkoxy, and acetoxy groups.

Claim 5

Dependent Claim 106 words

The adhesive/adherend system as recited in claim 1 wherein the polysiloxane resin is selected from the group consisting of silanol- and alkoxy-functional polysiloxane resins having the general formula: ##STR8## where each R 2 is independently selected from the group consisting of the hydroxy group and alkyl, aryl, alkenyl, and alkoxy groups having up to about six carbon atoms, where each R 1 is independently selected from the group consisting of hydrogen, alkyl, alkenyl, and aryl groups having up to about 12 carbon atoms, and where "n" is selected so that the polysiloxane resin ingredient has a weight average molecular weight of from about 200 to 10,000.

Claim 6

Dependent Claim 37 words

The adhesive/adherend system as recited in claim 1 wherein the amine hardener is selected from the group consisting of aliphatic amines, cycloaliphatic amines, aromatic amines, polyamides, and amidoamines having at least two active amine hydrogens per molecule.

Claim 7

Dependent Claim 72 words

The adhesive/adherend system as recited in claim 1 wherein the base catalyst is an amine having the general formula ##STR9## where each R 9 and R 10 group is independently selected from the group consisting of hydrogen, aryl, and alkyl groups having up to about 12 carbon atoms, and where R 11 is selected from the group consisting of alkyl, aryl, and hydroxy alkyl groups having up to about 12 carbon atoms.

Claim 8

Dependent Claim 20 words

The adhesive/adherend system as recited in claim 1 wherein the adhesive component further comprises a thickener and an extended pigment.

Claim 9

Dependent Claim 29 words

The adhesive/adherend system as recited in claim 1 wherein the adherend component is a composite comprising a reinforcing material and a resin component formed from a polysiloxane resin ingredient.

Claim 10

Dependent Claim 52 words

The adhesive/adherend system as recited in claim 8 wherein the resin component of the adherend further comprises a resin selected from the group consisting of epoxy, phenolic, polyester, vinyl ester, polyurethane, polyamide, melamine, furan, acrylate, thermoplastic polyvinyl chloride, polyethylene, polycarbonate, acrylonitrile-butadiene-styrene copolymer, polystyrene, ethylene vinyl acetate, polyvinyl acetate, polyamide, and polypropylene resins.

Claim 11

Dependent Claim 21 words

The adhesive/adherend system as recited in claim 1 wherein the adhesive component and adherend component are bonded together by Si--O--Si linkages.

Claim 12

Dependent Claim 68 words

An adhesive/adherend system comprising: an adhesive composition prepared by combining: an epoxy resin; with an organosilane ingredient; a polysiloxane resin; an amine hardener; an organometallic catalyst; and a base catalyst; and an adherend composite fabricated from a siloxane-containing resin that forms Si--O--Si bonds with the polysiloxane resin of the adhesive composition when the adhesive composition and adherend composite are placed into contact to form a strong attachment therewith.

Claim 13

Dependent Claim 68 words

An adhesive/adherend system comprising: an adhesive composition prepared by combining: an epoxy resin; with an organosilane ingredient; a polysiloxane resin; an amine hardener; an organometallic catalyst; and a base catalyst; and an adherend composite fabricated from a siloxane-containing resin that forms Si--O--Si bonds with the polysiloxane resin of the adhesive composition when the adhesive composition and adherend composite are placed into contact to form a strong attachment therewith.

Claim 14

Dependent Claim 33 words

The adhesive/adherend system as recited in claim 11 wherein the epoxy resin is selected from the group consisting of aliphatic, cycloaliphatic and aromatic epoxy resins having greater than one epoxide group per molecule.

Claim 15

Dependent Claim 105 words

The adhesive/adherend system as recited in claim 12 wherein the organosilane ingredient has a weight average molecular weight of from about 90 to 500, and is selected from the group consisting of epoxy silanes, aminosilanes, mercaptosilanes, vinyl silanes, acryl, and methacrylic silanes having the following general formula: ##STR10## where "Y" is an organo-functional group selected from ##STR11## where R 3 is selected from the group consisting of alkyl, cycloalkyl, alkylaryl, alkenyl, aryl, aminoalkyl, aminoaryl, and aminocycloalkyl groups having up to about ten carbon atoms, and where each R 4 group is independently selected from the group consisting of alkyl, cycloalkyl, aryl, alkoxy, and acetoxy groups.

Claim 16

Dependent Claim 106 words

The adhesive/adherend system as recited in claim 11 wherein the polysiloxane resin is selected from the group consisting of silanol- and alkoxy-functional polysiloxane resins having the general formula: ##STR12## where each R 2 is independently selected from the group consisting of the hydroxy group and alkyl, aryl, alkenyl, and alkoxy groups having up to about six carbon atoms, where each R 1 is independently selected from the group consisting of hydrogen, alkyl, alkenyl, and aryl groups having up to about 12 carbon atoms, and where "n" is selected so that the polysiloxane resin ingredient has a weight average molecular weight of from about 200 to 10,000.

Claim 17

Dependent Claim 18 words

The adhesive/adherend system as recited in claim 14 wherein the adhesive component further comprises a fumed silica thickener.

Claim 18

Dependent Claim 17 words

The adhesive/adherend system as recited in claim 15 wherein the adhesive component further comprises an extender pigment.

Claim 19

Dependent Claim 37 words

The adhesive/adherend system as recited in claim 13 wherein the amine hardener is selected from the group consisting of aliphatic amines, cycloaliphatic amines, aromatic amines, polyamides, and amidoamines having at least two active amine hydrogens per molecule.

Claim 20

Dependent Claim 53 words

The adhesive/adherend system as recited in claim 11 wherein the siloxane-containing component of the adherend composite further comprises a resin selected from the group consisting of epoxy, phenolic, polyester, vinyl ester, polyurethane, polyamide, melamine, furan, acrylate, thermoplastic polyvinyl chloride, polyethylene, polycarbonate, acrylonitrile-butadiene-styrene copolymer, polystyrene, ethylene vinyl acetate, polyvinyl acetate, polyamide, and polypropylene resins.

Claim 21

Dependent Claim 41 words

The adhesive/adherend system as recited in claim 11 wherein a sufficient amount of the organometallic catalyst and base catalyst is used to prepare the adhesive composition to promote forming Si--O--Si bonds with the siloxane-containing component of the adherend at ambient temperature.

Claim 22

Dependent Claim 200 words

An adhesive/adherend system comprising: an adhesive composition prepared by combining: an epoxy resin; with an organosilane ingredient; a polysiloxane resin selected from the group consisting of silanol- and alkoxy-functional polysiloxane resins having the general formula: ##STR13## where each R 2 is independently selected from the group consisting of the hydroxy group and alkyl, aryl, alkenyl, and alkoxy groups having up to about six carbon atoms, where each R 1 is independently selected from the group consisting of hydrogen, alkyl, alkenyl, and aryl groups having up to about 12 carbon atoms, and where "n" is selected so that the polysiloxane resin ingredient has a weight average molecular weight of from about 200 to 10,000; a thickener; an amine hardener; an organometallic catalyst; a base catalyst; and an extender pigment; and an adherend composite comprising: a siloxane-containing component that forms Si-O-Si bonds with the polysiloxane resin of the adhesive composition when the adhesive composition and adherend composite are placed into contact to form an attachment therewith; and a resin selected from the group consisting of epoxy, phenolic, polyester, vinyl ester, polyurethane, polyamide, melamine, furan, acrylate, thermoplastic polyvinyl chloride, polyethylene, polycarbonate, acrylonitrile-butadiene-styrene copolymer, polystyrene, ethylene vinyl acetate, polyvinyl acetate, polyamide, and polypropylene resins.

Claim 23

Dependent Claim 200 words

An adhesive/adherend system comprising: an adhesive composition prepared by combining: an epoxy resin; with an organosilane ingredient; a polysiloxane resin selected from the group consisting of silanol- and alkoxy-functional polysiloxane resins having the general formula: ##STR13## where each R 2 is independently selected from the group consisting of the hydroxy group and alkyl, aryl, alkenyl, and alkoxy groups having up to about six carbon atoms, where each R 1 is independently selected from the group consisting of hydrogen, alkyl, alkenyl, and aryl groups having up to about 12 carbon atoms, and where "n" is selected so that the polysiloxane resin ingredient has a weight average molecular weight of from about 200 to 10,000; a thickener; an amine hardener; an organometallic catalyst; a base catalyst; and an extender pigment; and an adherend composite comprising: a siloxane-containing component that forms Si-O-Si bonds with the polysiloxane resin of the adhesive composition when the adhesive composition and adherend composite are placed into contact to form an attachment therewith; and a resin selected from the group consisting of epoxy, phenolic, polyester, vinyl ester, polyurethane, polyamide, melamine, furan, acrylate, thermoplastic polyvinyl chloride, polyethylene, polycarbonate, acrylonitrile-butadiene-styrene copolymer, polystyrene, ethylene vinyl acetate, polyvinyl acetate, polyamide, and polypropylene resins.

Claim 24

Dependent Claim 39 words

The adhesive/adherend system as recited in claim 20 wherein the epoxy resin used to form the adhesive component is selected from the group consisting of aliphatic, cycloaliphatic and aromatic epoxy resins having greater than one epoxide group per molecule.

Claim 25

Dependent Claim 29 words

The adhesive/adherend system as recited in claim 21 wherein from about 15 to 40 percent by weight of the epoxy resin is used based on the total adhesive composition.

Claim 26

Dependent Claim 105 words

The adhesive/adherend system as recited in claim 20 wherein the organosilane ingredient has a weight average molecular weight of from about 90 to 500, and is selected from the group consisting of epoxy silanes, aminosilanes, mercaptosilanes, vinyl silanes, acryl, and methacrylic silanes having the following general formula: ##STR14## where "Y" is an organo-functional group selected from ##STR15## where R 3 is selected from the group consisting of alkyl, cycloalkyl, alkylaryl, alkenyl, aryl, aminoalkyl, aminoaryl, and aminocycloalkyl groups having up to about ten carbon atoms, and where each R 4 group is independently selected from the group consisting of alkyl, cycloalkyl, aryl, alkoxy, and acetoxy groups.

Claim 27

Dependent Claim 37 words

The adhesive/adherend system as recited in claim 20 wherein the amine hardener is selected from the group consisting of aliphatic amines, cycloaliphatic amines, aromatic amines, polyamides, and amidoamines having at least two active amine hydrogens per molecule.

Claim 28

Dependent Claim 29 words

The adhesive/adherend system as recited in claim 24 wherein from about 1 to 25 percent by weight of the amine hardener is used based on the total adhesive composition.

Claim 29

Dependent Claim 77 words

The adhesive/adherend system as recited in claim 20 wherein the base catalyst is selected from the group of amine compounds having the general formula: ##STR16## where each R 9 and R 10 group is independently selected from the group consisting of hydrogen, aryl, and alkyl groups having up to about 12 carbon atoms, and where R 11 is selected from the group consisting of alkyl, aryl, and hydroxy alkyl groups having up to about 12 carbon atoms.

Claim 30

Dependent Claim 21 words

The adhesive/adherend system as recited in claim 20 wherein the siloxane-containing component of the adherend is formed from the polysiloxane resin.

Claim 31

Dependent Claim 52 words

The adhesive/adherend system as recited in claim 27 wherein the siloxane-containing component of the adherend further comprises a resin selected from the group consisting of epoxy, phenolic, polyester, vinyl ester, polyurethane, polyamide, melamine, furan, acrylate, thermoplastic polyvinyl chloride, polyethylene, polycarbonate, acrylonitrile-butadiene-styrene copolymer, polystyrene, ethylene vinyl acetate, polyvinyl acetate, polyamide, and polypropylene resins.

Claim 32

Dependent Claim 85 words

An adhesive/adherend system comprising: an adhesive composition prepared by combining: an epoxy resin; with an organosilane ingredient; a polysiloxane resin; a fumed silica thickener; an amine hardener; an organometallic catalyst; an amine curative agent; and an extender pigment; and an adherend composite fabricated from a reinforcing material and a siloxane-containing component disposed throughout the composite that forms Si--O--Si bonds with siloxane groups of the adhesive composition when the adhesive composition and adherend composite are placed into contact with one another to form an attachment therewith.

Claim 33

Dependent Claim 85 words

An adhesive/adherend system comprising: an adhesive composition prepared by combining: an epoxy resin; with an organosilane ingredient; a polysiloxane resin; a fumed silica thickener; an amine hardener; an organometallic catalyst; an amine curative agent; and an extender pigment; and an adherend composite fabricated from a reinforcing material and a siloxane-containing component disposed throughout the composite that forms Si--O--Si bonds with siloxane groups of the adhesive composition when the adhesive composition and adherend composite are placed into contact with one another to form an attachment therewith.

Claim 34

Dependent Claim 41 words

The adhesive/adherend system as recited in claim 29 wherein a sufficient amount of the organometallic catalyst and base catalyst is used to prepare the adhesive composition to promote forming Si--O--Si bonds with the siloxane-containing component of the adherend at ambient temperature.

Claim 35

Dependent Claim 106 words

The adhesive/adherend system as recited in claim 29 wherein the polysiloxane resin is selected from the group consisting of silanol- and alkoxy-functional polysiloxane resins having the general formula: ##STR17## where each R 2 is independently selected from the group consisting of the hydroxy group and alkyl, aryl, alkenyl, and alkoxy groups having up to about six carbon atoms, where each R 1 is independently selected from the group consisting of hydrogen, alkyl, alkenyl, and aryl groups having up to about 12 carbon atoms, and where "n" is selected so that the polysiloxane resin ingredient has a weight average molecular weight of from about 200 to 10,000.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	2002-08-23	2003-02-22	2003-08-24	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	2006-08-23	2007-02-22	2007-08-24	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	2010-08-23	2011-02-22	2011-08-24	$7700.00	Window Closed / Lapsed

Siloxane-modified adhesive/adherend systems

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