PBT Molding compositions containing mica and a composite polymer

Details PBT Molding compositions containing mica and a composite polymer PBT Molding compositions containing mica and a composite polymer

1979-12-26

1981-08-11

Lieberman, Paul

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

525 64, 525 65, C08L 6702, C08L 6300

Patent

active

042833264

ABSTRACT:
Poly (C.sub.2 -C.sub.4 alkylene terephthalate) molding composition containing mica and a multiphase composite polymer. The multiphase polymer has a first elastomeric phase polymerized from a monomer system including C.sub.1 -C.sub.6 alkyl acrylate as well as crosslinking and graftlinking monomers and has a final rigid thermoplastic phase polymerized in the presence of the elastomeric phase. Preferred compositions also include thermally stable reinforcing fibers such as glass fibers.

REFERENCES:
patent: 3814725 (1974-06-01), Zimmerman et al.
patent: 4034013 (1977-07-01), Lane
patent: 4066607 (1978-01-01), Breitenfellner et al.
patent: 4096202 (1978-06-01), Farnham et al.
patent: 4123415 (1978-10-01), Wambach
"Low-Cost Suzorite Mica Flake Prevents Distortion in PBT", Marietta Resources Int'l., Aug. 1976.

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