An industrial procedure to delay the flammability of a thermoplastic interpolimer concentrate by the presence of sufficient chloroprene rubber. (Machine-translation by Google Translate, not legally binding)

摘要

An industrial procedure to retard the flammability of a thermoplastic interpolymer concentrate by the presence of sufficient chloroprene rubber, characterized by interpolymerizing at least one monovilidene aromatic hydrocarbon monomer, one ethylenically unsaturated nitrile monomer and chloroprene rubber, grafting said monomers into said chloroprene rubber and also polymerizing to form polymers of said monomer, said interpolymer concentrate (A) comprising from 1% to 82% by weight of a polymer of at least one monovinylidene aromatic hydrocarbon monomer and one ethylenically unsaturated nitrile monomer. it constitutes from 0% to 90% by weight of said polymer, and (B) from 18% to 99% by weight of a grafted chloroprene rubber copolymer, said rubber being grafted with: (1) at least one monovilidene hydrocarbon monomer -aromatic, and (2) an ethylenically unsaturated nitrile monomer in which said ethylenically nitrile monomer moiety and unsaturated constitutes from 0% to 90% by weight of the total of grafted monomers, in which a residue of chloroprene rubber in a proportion comprised between 15% and 75% by weight of the interpolymer concentrate with the polymer (A) is present. and copolymer (B) obtained as said interpolymer concentrate by polymerizing at least one of said monomers in the presence of said chloroprene rubber. (Machine-translation by Google Translate, not legally binding)