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

1988-08-15

1990-12-18

Ziegler, Jacob

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525 65, 525 66, 525 67, 525 68, 525 74, 525905, C08L 5302, C08L 6900, C08L 7112

Patent

active

049787152

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: 4600640 (1986-07-01), Olson
patent: 4672086 (1987-06-01), Seilers et al.

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