Adhesive for double glazing units

Claim 2

A sealant system comprising an adhesive composition and a primer composition which on combination provide a cured adhesive; said adhesive composition being a composition which is extrudable as a hot melt from about 140° C. to about 190° C. and is hardenable to yield a non-tacky, cohesive elastic mass having a moisture vapor transmission rate of not more than about 0.5 g/m 2 /day measured at 38° C. and comprising per hundred parts by weight of the adhesive composition, from about 5 to about 50 parts by weight of a block copolymer having two polystyrene end blocks linked to a substantially saturated polyolefin rubber midblock, from about 5 to about 50 parts by weight of an aliphatic hydrocarbon resin having a melting point not less than 60° C., from about 2 to about 40 parts by weight of a curable epoxy resin and a finely divided inorganic filler; said primer composition comprising a heat softenable polymeric composition and an amine curing agent for the epoxy resin in the adhesive composition.

Claim 3

A sealant system comprising an adhesive composition and a primer composition which on combination provide a cured adhesive; said adhesive composition being a composition which is extrudable as a hot melt from about 140° C. to about 190° C. and is hardenable to yield a non-tacky cohesive elastic mass having a moisture vapor transmission rate of not more than about 0.1 g/m 2 /day measured at 25° C. and comprising per hundred parts by weight of the adhesive composition, from about 5 to 50 parts by weight of a block copolymer having two polystyrene end blocks linked to a substantially saturated polyolefin rubber mid-block, from about 5 to about 50 parts by weight of an aliphatic hydrocarbon having a melting point of not less than about 60° C., from about 2 to about 40 parts by weight of a curable epoxy resin and, a finely divided inorganic filler; said primer composition comprising a heat softenable polymeric composition and an amine curing agent for the epoxy resin in the adhesive composition.

Claim 4

A sealant system comprising an adhesive composition and a primer composition which on combination provide a cured adhesive; said adhesive composition being a composition which is extrudable as a hot melt from about 140° C. to about 190° C. and is hardenable to yield a non-tacky cohesive elastic mass having a moisture vapor transmission rate of not more than about 0.1 g/m 2 /day measured at 25° C. and comprising per hundred parts by weight of the adhesive composition, from about 5 to 50 parts by weight of a block copolymer having two polystyrene end blocks linked to a substantially saturated polyolefin rubber mid-block, from about 5 to about 50 parts by weight of an aliphatic hydrocarbon having a melting point of not less than about 60° C., from about 2 to about 40 parts by weight of a curable epoxy resin and, a finely divided inorganic filler; said primer composition comprising a heat softenable polymeric composition and an amine curing agent for the epoxy resin in the adhesive composition.

Claim 5

A sealant system comprising an adhesive composition and a primer composition which on combination provide a cured adhesive and where the adhesive composition comprises per 100 parts by weight of the adhesive composition: from about 9 to about 30 parts by weight of a block copolymer having two polystyrene end blocks linked to a substantially saturated polyolefin rubber mid-block; from about 12 to about 30 parts by weight of an aliphatic hydrocarbon resin of melting point not less about 60° C.; from about 2 to about 40 parts by weight of a liquid, reactive epoxy resin; from about 10 to about 60 parts by weight of finely divided inorganic filler; from 0 to about 20 parts by weight of an aromatic hydrocarbon resin having a melting point from about 60° C. to about 130° C.; from 0 to about 40 parts by weight of a liquid polybutene; from 0 to about 15 parts by weight wax having a melting point from about 50° C. to about 120° C.; from 0 to about 1 parts by weight stabilizers; and from 0 to about 8 parts by weight carbon black, and the primer composition comprises a solution of a polymeric composition which comprises per hundred parts by weight of the primer composition; from about 10 to about 40 parts by weight of a block copolymer having two polystyrene end blocks linked to a substantially saturated polyolefin rubber mid-block; from about 0.25 to about 20 parts by weight of a tertiary amine; from about 5 to about 20 parts by weight of a phenolic resin; from about 20 to about 40 parts by weight of an aliphatic hydrocarbon resin having a melting point from about 60° to about 15° C.; from about 5 to about 40 parts by weight of an aromatic hydrocarbon resin having a melting point from about 50° C. to about 150° C.; and from 0 to about 1 parts by weight stabilizers.

Claim 6

A sealant system comprising an adhesive composition and a primer composition which on combination provide a cured adhesive and where the adhesive composition comprises per 100 parts by weight of the adhesive composition: from about 9 to about 30 parts by weight of a block copolymer having two polystyrene end blocks linked to a substantially saturated polyolefin rubber mid-block; from about 12 to about 30 parts by weight of an aliphatic hydrocarbon resin of melting point not less about 60° C.; from about 2 to about 40 parts by weight of a liquid, reactive epoxy resin; from about 10 to about 60 parts by weight of finely divided inorganic filler; from 0 to about 20 parts by weight of an aromatic hydrocarbon resin having a melting point from about 60° C. to about 130° C.; from 0 to about 40 parts by weight of a liquid polybutene; from 0 to about 15 parts by weight wax having a melting point from about 50° C. to about 120° C.; from 0 to about 1 parts by weight stabilizers; and from 0 to about 8 parts by weight carbon black, and the primer composition comprises a solution of a polymeric composition which comprises per hundred parts by weight of the primer composition; from about 10 to about 40 parts by weight of a block copolymer having two polystyrene end blocks linked to a substantially saturated polyolefin rubber mid-block; from about 0.25 to about 20 parts by weight of a tertiary amine; from about 5 to about 20 parts by weight of a phenolic resin; from about 20 to about 40 parts by weight of an aliphatic hydrocarbon resin having a melting point from about 60° to about 15° C.; from about 5 to about 40 parts by weight of an aromatic hydrocarbon resin having a melting point from about 50° C. to about 150° C.; and from 0 to about 1 parts by weight stabilizers.

Claim 7

A sealant system of claim 1 or 2 where the adhesive composition comprises from about 9 to about 30 parts by weight of the block copolymer per 100 parts by weight of the adhesive composition.

Claim 8

A sealant system of claim 1 or 2 where the adhesive composition comprises from about 14 to about 20 parts by weight of the block copolymer per 100 parts by weight of the adhesive composition.

Claim 9

A sealant system of claim 1 or 2 where the adhesive composition comprises from about 15 to about 20 parts by weight aliphatic hydrocarbon resin per 100 parts by weight of the adhesive composition.

Claim 10

A sealant system of claim 1 or 2 where the adhesive composition comprises from about 4 to about 15 parts by weight of liquid epoxy resin per 100 parts by weight of the adhesive composition.

Claim 11

A sealant system of claim 1 or 2 where the adhesive composition comprises from about 12 to about 40 parts by weight of finely divided inorganic filler per 100 parts by weight of the adhesive composition.

Claim 12

A sealant system of claim 1 or 2 where the adhesive composition comprises not more than about 8 parts by weight of carbon black per 100 parts by weight of the adhesive composition.

Claim 13

A sealant system of claim 1 or 2 where the adhesive composition comprises from 0 to about 50 parts by weight of an aromatic hydrocarbon resin having a melting point from about 60° C. to about 130° C. per 100 parts by weight of the adhesive composition.

Claim 14

A sealant system of claim 1 or 2 where the adhesive composition comprises no more than about 20 parts by weight aromatic hydrocarbon resin having a melting point between about 60° C. to about 130° C. per 100 parts by weight of the adhesive composition.

Claim 15

A sealant system of claim 1 or 2 where the adhesive composition comprises from 0 to about 40 parts by weight of a liquid polybutene per 100 parts by weight of the adhesive composition.

Claim 16

A sealant system of claim 1 or 2 where the adhesive composition comprises from about 15 to about 20 parts by weight liquid polybutene per 100 parts by weight of the adhesive composition.

Claim 17

A sealant system of claim 1 or 2 where the adhesive composition comprises from 0 to about 15 parts by weight of a wax having a melting point from about 50° C. to about 120° C. per 100 parts by weight of the adhesive composition.

Claim 18

A sealant system of claim 1 or 2 where the adhesive composition comprises from 0 to 10 parts by weight of a wax having a melting point from about 50° C. to about 120° C. per 100 parts by weight of the adhesive composition.

Claim 19

A sealant system of claim 1 or 2 where the curing agent comprises a tertiary amine.

Claim 20

A sealant system of claim 1 or 2 where the curing agent comprises 2.4.6-tris-dimethylaminomethylphenol.

Claim 21

A sealant system of claim 1 or 2 where the curing agent comprises from about 0.25 to about 20 parts by weight of the tertiary amine per 100 parts by weight of the primer composition.

Claim 22

A sealant system of claim 1 or 2 where the curing agent comprises from about 1 to about 7 parts by weight of a tertiary amine per 100 parts by weight of the primer composition.

Claim 23

A sealant system of claim 1 or 2 where the primer composition comprises from about 10 to about 30 parts by weight of a block copolymer having two polystyrene end blocks linked to a substantially saturated polyolefin rubber mid-block per 100 parts by weight of the primer composition.

Claim 24

A sealant system of claim 1 or 2 where the primer composition comprises from about 2 to about 40 parts by weight of a heat reactive phenolic resin per 100 parts by weight of the primer composition.

Claim 25

A sealant system of claim 1 or 2 where the primer composition comprises from about 5 to about 20 parts by weight of a heat reactive phenolic resin per 100 parts by weight of the primer composition.

Claim 26

A sealant system of claim 1 or 2 where the primer composition comprises from 0 to about 80 parts by weight of an aliphatic hydrocarbon resin having a melting point from about 60° C. to about 150° C. per 100 parts by weight of the primer composition.

Claim 27

A sealant system of claim 1 or 2 where the primer composition comprises from about 20 to about 40 parts by weight of an aliphatic hydrocarbon resin having a melting point from about 60° C. to about 150° C. per 100 parts by weight of the primer composition.

Claim 28

A sealant system of claim 1 or 2 where the primer composition comprises from 0 to about 80 parts by weight of an aromatic hydrocarbon resin having a melting point from about 50° C. to about 150° C. per 100 parts by weight of the primer composition.

Claim 29

A sealant system of claim 1 or 2 where the primer composition comprises from about 5 to about 40 parts by weight of an aromatic hydrocarbon resin having a melting point from about 50° C. to about 150° C. per 100 parts by weight of the primer composition.