Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1993-06-23
1995-05-09
Michl, Paul R.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525463, 4272082, 4273722, 427386, 428415, C08F 2000, C08F28302, B32B 1710, B32B 2738
Patent
active
054140536
ABSTRACT:
Described herein is an adhesive composition comprising (a) an aromatic polyester or aromatic polycarbonate, (b) a polyepoxide, (c) an effective amount of an initiator or catalyst for the reaction of carbonate or ester groups in the aromatic polycarbonate or aromatic polyester with oxirane groups in the polyepoxide, and (d) from about 1 to about 50 weight percent of (i) a polymeric material different from (b) with pendant epoxy groups and a glass transition temperature below about 50.degree. C., or (ii) a solution of a copolymer of an an alkyl ester of an .alpha.,.beta.-ethylenically unsaturated carboxylic acid and a hydroxyalkyl ester of an .alpha.,.beta.-ethylenically unsaturated carboxylic acid, in a polyether polyol having a molecular weight of at least about 200; wherein the number ratio of oxirane groups in component (b) to the sum of the number of ester groups and twice the number of carbonate groups in component (a), is in the range of from about 0.8:1 to about 1.4:1. The composition of the invention has been discovered to be useful as a film adhesive in processes for bonding oily metal substrates.
REFERENCES:
patent: 3947522 (1976-03-01), Shelley, Jr. et al.
patent: 4731416 (1988-03-01), Saunders
patent: 4746725 (1988-05-01), Evans et al.
patent: 4782124 (1988-11-01), Hefner, Jr. et al.
patent: 5037903 (1991-08-01), Parker
patent: 5045632 (1991-09-01), Parker
patent: 5105006 (1992-04-01), Parker
Parker Theodore L.
Volkmann Curtis L.
Essex Specialty Products Inc.
Michl Paul R.
Niland Patrick
Sims Norman L.
The Dow Chemical Company
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