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METHOD FOR QUARKING GASEOUS ACRYLONITRIL CYANIDE PRODUCT FLOWS
METHOD FOR QUARKING GASEOUS ACRYLONITRIL CYANIDE PRODUCT FLOWS
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机译:消除气态丙烯腈氰化物产物流的方法
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摘要
The present invention provides polyamide compositions comprising a polyamide, nylon 2,2, and a phosphorous-containing whitening agent having Formula I:Formula I:wherein R is hydrogen, an alkyl group with 1 to 6 carbons, a cycloalkyl group with 5 to 6 carbons, or a phenyl or methylphenyl aromatic group, and M is hydrogen or a metal. In a preferred embodiment, the polyamide is nylon 6,6 (polyhexamethylene adipamide) and the phosphorous-containing whitening agent is a hypophosphorous acid or a metal hypophosphite. Sodium hypophosphite is especially preferred. The polyamide compositions of the present invention have improved molding cycle times, and are tough, white and color-stable.
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