Vinyl halide graft polymers
Abstract
Abstract THERE IS DISCLOSED A PROCESS FOR PREPARING NOVEL GRAFT POLYMERS OF A VINYL HALIDE AND LONG-CHAIN ALIPHATIC VINYL COMPOUND ON A RUBBERY OLEFIN POLYMER. IN ACCORDANCE WITH THE PROCESS, AND AQUEOUS DISPERSION IS FORMED OF A RUBBERY OLEFIN POLYMER AND A MONOMER FORMULATION CONTAINING VINYL HALIDE AND A COPOLYMERIZABLE LONG-CHAIN ALIPHATIC VINYL MONOMER. POLYMERIZATION IS EFFECTED IN THE RESULTING DISPERSION FOR A PERIOD OF TIME SUFFICIENT TO POLYMERIZE AT LEAST A SUBSTANTIAL PORTION OF THE VINYL HALIDE AND ALIPHATIC VINYL MONOMER PRESENT THEREIN AND PRODUCE GRAFTING OF AT LEAST A PORTION OF THE RUBBERY OLEFIN POLYMER AFTER WHICH THE COPOLYMERIC PRODUCT IS RECOVERED. IN THE PREFERRED PROCESS THE FASTER REACTING MONOMER IS CONTINUOUSLY ADDED SO AS TO MAINTAIN A HIGHER RATIO OF THE SLOWER ACTING MONOMER IN THE DISPERSION.
Inventors
- 👤 Leo E Rademacher
Bibliographic Details
Claims Analysis
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