Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1989-03-17
1990-08-14
Schofer, Joseph L.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
525124, 5253321, C08K 529
Patent
active
049488244
ABSTRACT:
Compositions of matter based on the reaction product of a dioxime compound and a polyisocyanate compound, made by reacting the compounds in an inert organic liquid in such a proportion that the ratio of oxime groups to isocyanate groups in the reaction is greater than 2:1, and is preferably about 2.5:1. The reaction product may be used in an adhesive composition which further includes an elastomer with a degree of unsaturation of greater than two mole percent, which is preferably an ethylene-propylene-diene terpolymer, and which may further include a film-forming adjunct, an inert filler material, and an inert solvent. The adhesive composition, which does not require an oxidizing agent, may be made into a liquid adhesive composition by mixing with an inert organic liquid. The liquid adhesive composition may be used to bond rubber to metal, producing useful bonded and laminated articles, by coating at least one of the substrate surfaces to be bonded with the composition; bringing both substrate surfaces into contact with the composition layered therebetween; and maintaining contact under sufficient conditions of time, temperature, and pressure to effect bonding. Both cured and uncured rubbers may be bonded.
REFERENCES:
patent: 2459742 (1949-01-01), Bradley et al.
patent: 3258388 (1966-06-01), Coleman et al.
patent: 3282883 (1966-11-01), DeCrease et al.
patent: 3824217 (1974-07-01), Barker
patent: 3859258 (1975-01-01), Manino
patent: 4442259 (1984-04-01), Isgur et al.
patent: 4581092 (1986-04-01), Westley
Hawley's Condensed Chemical Dictionary, 11th ed., p. 214.
Auerbach Robert A.
Watson George W.
Lord Corporation
Mulcahy Peter D.
Schofer Joseph L.
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