Production of phenylene sulfide-arylene sulfide/sulfone block co

Details Production of phenylene sulfide-arylene sulfide/sulfone block co Production of phenylene sulfide-arylene sulfide/sulfone block co

1991-06-19

1992-09-15

Herbert, Jr., Thomas J.

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Web or sheet containing structurally defined element or...

Physical dimension specified

428426, 428457, B32B 1706, B32B 1508

Patent

active

051477190

ABSTRACT:
Block copolymers composed of poly(phenylene sulfide) segments and poly(arylene sulfide/sulfone) segments are prepared by first polymerizing a dihalobenzene, utilizing a suitable sulfur source in the presence of a polar organic compound, to form poly(phenylene sulfide) segments then adding and polymerizing a dehaloaromatic sulfone thereby forming said block copolymer which block copolymers are employed as coatings and also are used to enhance compatibility of polymer blends.

REFERENCES:
patent: 3919177 (1975-11-01), Campbell
patent: 4016145 (1977-04-01), Campbell
patent: 4440915 (1984-04-01), Asakura et al.
patent: 4835051 (1989-05-01), Yu
patent: 4921558 (1990-05-01), Johnson et al.
patent: 4946912 (1990-08-01), Kawabata et al.
patent: 4960841 (1990-10-01), Kawabata et al.

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