Solvent-resistant, compatible blends of polyphenylene ethers and

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

1988-01-15

1989-02-21

Ziegler, Jacob

Plastic and nonmetallic article shaping or treating: processes

Vacuum treatment of work

To degas or prevent gas entrapment

26433116, 525 92, 525905, 528212, 528215, 528216, B29B 784

Patent

active

048062979

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.

REFERENCES:
patent: 4369278 (1983-01-01), Kasahara et al.
patent: 4591467 (1986-05-01), Koyernicky
patent: 4732938 (1988-03-01), Grant et al.

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