FLAME-RETARDANT COPOLYMERS OF DIALKYL (METH)ACRYLOYLOXYALKYL PHOSPHATE OR DIALKYL (METH)ACRYLOYLOXYALKYL PHOSPHONATE MONOMERS AND POLYMER FOAMS BASED MADE THEREFROM

摘要

Polymer foam bodies are made from phosphorus-containing thermoplastic random copolymers of a dialkyl (meth)acryloyloxyalkyl phosph(on)ate. Foam bodies made from these copolymers exhibit increased limiting oxygen indices and surprisingly have good properties. In certain embodiments, the phosphorus-containing thermoplastic copolymer is blended with one or more other polymers and formed into nanofoams.

主权项

1. A polymer foam body comprising a polymeric matrix containing gas-filled cells, wherein the polymeric matrix comprises a phosphorus-containing, thermoplastic random copolymer of at least one dialkyl (meth)acryloyloxyalkylphosph(on)ate and one or more comonomers, the phosphorus-containing copolymer being characterized in having a weight average molecular weight of at least 60,000 g/mol and 1.5 to 10% by weight phosphorus contributed by the dialkyl(meth)acryloyloxyalkylphosph(on)ate.