C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
C08F 114/02 (2006.01) C08F 14/06 (2006.01) C08L 27/02 (2006.01) C08L 27/24 (2006.01)
Patent
CA 2061440
ABSTRACT Low complex viscosity crosslinked polyvinyl halide resins and post-chlorinated versions are disclosed. Said crosslinked resins, including post-chlorinated crosslinked polyvinyl chloride are produced by suspension, mass, emulsion, micro suspension and preferably a skinless process. Said resins are polymerized in the presence of a complex viscosity suppressant which is at least partially miscible in vinyl halide monomer and substantially removable from said resin by conventional means. The preferred said suppressant is selected from the group consisting of substituted or unsubstituted lower aromatics, lower ethers, esters lower ketones, lower aldehydes, halogenated hydrocarbons and derivatives. Lower ethers are preferred and most preferred areunsubstituted cyclic ethers. The invention includes blend compositions comprising said modified crosslinked polyvinyl halide resin including post-chlorinated versions in combination with uncrosslinked polyvinyl halide resin or post-chlorinated version, said resins and blends are useful for flexible and rigid articles, in particular, large and/or intricate molded articles requiring enhanced melt flow. 1910003
Cozens Ross J.
Swabey Ogilvy Renault
The B.f. Goodrich Company
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