COLOUR STABILIZATION OF NITRILE-CONTAINING POLYMERS WITH ORGANOTIN COMPOUNDS

摘要

1517182 Organo-tin stabilizers STANDARD OIL CO 11 July 1975 [11 July 1974] 29206/75 Heading C3K An organotin maleate of formula wherein x is 1 to 4; A is optionally substituted C2-C12 alkyl; or a dialkyltinbis(maleate) half ester of formula wherein A<1> is optionally substituted C4-C14 alkyl; is used to stabilize a polymer of a major portion of an unsaturated nitrile and, optionally, a minor portion of another vinyl monomer or a graft polymer of such monomer(s) on a diene rubber.