Solvent-resistant, compatible blends of polyphenylene ethers...

Details Solvent-resistant, compatible blends of polyphenylene ethers... Solvent-resistant, compatible blends of polyphenylene ethers...

C - Chemistry, Metallurgy

08

L

400/3002, 400/44

C08L 69/00 (2006.01) C08L 25/00 (2006.01) C08L 67/02 (2006.01) C08L 71/04 (1985.01)

Patent

CA 1267471

SOLVENT RESISTANT, COMPATIBLE BLENDS OF POLYPHENYLENE ETHERS AND LINEAR POLYESTERS Abstract Impact- and solvent-resistant resin blends are prepared from a polyphenylene ether, or blend thereof with a polystyrene, a linear polyester such as a poly(alkylene dicarboxylate), at least one elastomeric polyphenylene ether-compatible impact modifier and at least one polymer containing a substantial proportion of aromatic polycarbonate units as a compatibilizing agent. There may also be present a minor amount of at least one epoxide and/or masked isocyanate such as triglycidyl isocyanurate or a glycidyl methacrylate polymer. The polyphenylene ether is preferably inactivated by reaction with at least one non-volatile carboxylic acid or anhydride and/or by extrusion with vacuum venting.

529174

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