High tensile strength elastomeric adhesive cements and laminates

Details High tensile strength elastomeric adhesive cements and laminates High tensile strength elastomeric adhesive cements and laminates

1974-09-12

1978-02-07

Lieberman, Allan

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 27BB, 260 304A, 260 336A, 260 793A, 260846, 260888, C08K 501, C08K 505, C08K 515, C08L 900

Patent

active

040726487

ABSTRACT:
Adhesive contact cements of sulfonated olefinically unsaturated elastomers (sulfobutyl rubber) containing from about 0.1 to about 5.0 mol % SO.sub.3 H neutralized, partially neutralized, or unneutralized, are admixed with tackifiers, i.e. phenolformaldehyde resins, polyisobutylene, alkylphenol formaldehyde resins, petroleum resins, etc. in an amount of between about 5 and about 90 phr in between about 10 and about 50 wt. % solids concentration in organic solvents. These cements are used for adhering porous or non-porous materials such as textiles, wood, cloth, sheets or strip of metals, plastics, etc. to each other. High green strength, high tensile strength, high resistance to peel, even at elevated temperatures, water impermeability, etc. characterize such adhesive layers in laminates. A preferred solvent, 90% toluene, 10% isopropyl alcohol is used in compounding the cement and preferably an organic amine, e.g. ethylamine, is used to partially or completely neutralize the sulfonated elastomer although inorganic bases may also be used for neutralization.

REFERENCES:
patent: 3484405 (1969-12-01), Seto
patent: 3642728 (1972-02-01), Canter
patent: 3801531 (1974-04-01), Berejka et al.

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