Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1995-03-23
1996-05-28
Marquis, Melvyn I.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525 78, 525221, 525267, 525285, 4273881, 4273935, 427395, C08L 2704
Patent
active
055212484
ABSTRACT:
A flowable uncured adhesive elastomeric composition suitable for delivery to assembly sites by pumping through supply lines is provided, which has a tensile strength suitable for formation of a strong bond, comprising: (a) an elastomer having a viscosity higher than flowable; (b) a synthetic resin curable by the same cure system as said non-flowable elastomer in an amount sufficient to lower the viscosity of the mixture to a pumpable level; (c) an unsaturated polymeric adduct of a dicarboxylic acid or dicarboxylic acid derivative in an amount sufficient to provide adhesive properties to the mixture; and (d) a curing agent. Preferably the composition also comprises a crosslink-enhancing coagent in an amount sufficient to lower percent elongation and increase adhesive bond strength of the cured elastomer. The compositions are useful for bonding substrates such as other elastomers, metals, plastics, glass, fibers, paper and fabrics.
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Drake Ronald E.
Labriola John M.
Marquis Melvyn I.
Ricon Resins, Inc.
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