Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond
Patent
1976-12-20
1978-12-26
Jacobs, Lewis T.
Stock material or miscellaneous articles
Structurally defined web or sheet
Discontinuous or differential coating, impregnation or bond
260 27BB, 260 312R, 260 328A, 260 332R, 260 336A, 260846, 428286, 428411, 428460, 428462, 428473, 428494, 428518, 428519, 428520, B22B 712
Patent
active
041317092
ABSTRACT:
An adhesive composition based on
I. 100 parts by weight of a block copolymer with at least two polymer blocks (A) and at least one polymer block (B), wherein the polymer blocks (A) comprise non-elastomeric blocks with an average molecular weight of from 2000 to 125,000 derived from an aromatic hydrocarbon substituted by one of the groups consisting of the members monoalkenyl and monoalkylidene and wherein not more than 25% of the original double bonds are hydrogenated, and polymer block (B) is an elastomeric block with an average molecular weight of from 10,000 to 250,000 derived from a conjugated diene, wherein at least 75% of the aliphatic unsaturated bonds are hydrogenated;
Ii. 10 to 200 parts by weight of at least one cohesion-increasing resin selected from the group consisting of an alkylphenol resin, an arylphenol resin, a phenol-colophony-adduct and a rosin-modified phenol resin;
The components dissolved in at least one solvent and a process of bonding one substrate to another substrate which comprises applying to the surface of either substrate an adhesive composition as claimed in claim 1 and placing the surfaces to be bonded together.
REFERENCES:
patent: 3239478 (1966-03-01), Harlan
patent: 3325430 (1967-06-01), Grasley
patent: 3917607 (1975-11-01), Crosalaud et al.
Sattelmeyer Richard
Schmelzer Heinz
Schunck Erich
Hoechst Aktiengesellschaft
Jacobs Lewis T.
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