High modulus blend of poly(.alpha.-amino acid) in rubbery...

Details High modulus blend of poly(.alpha.-amino acid) in rubbery... High modulus blend of poly(.alpha.-amino acid) in rubbery...

C - Chemistry, Metallurgy

08

L

C08L 7/00 (2006.01) C08L 21/00 (2006.01)

Patent

CA 2063145

Abstract of the Disclosure HIGH MODULUS BLEND OF POLY(.alpha.-AMINO ACID) IN RUBBERY ELASTOMER It is frequently desirable to increase the modulus of rubbers which are utilized in a wide variety of applications. This invention discloses a technique for increasing the modulus of rubbers. By utilizing this technique, high modulus rubber compositions can be attained without sacrificing other properties, such as elongation and hysteresis. This invention more specifically relates to a process for preparing a high modulus rubber composition which comprises: (1) polymerizing at least one N-carboxyl-.alpha.-amino acid anhydride in a polymer cement of a rubbery elastomer under conditions which result in the formation of a rubber cement having the poly(.alpha.-amino acid) dispersed therein; and (2) recovering the high modulus rubber composition from the rubber cement. The high modulus rubber compositions made by this technique are comprised of at least one rubbery elastomer and at least one poly(.alpha.-amino acid).

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