Vinyl chloride resin-based composition and packings made therefr

Details Vinyl chloride resin-based composition and packings made therefr Vinyl chloride resin-based composition and packings made therefr

1993-02-05

1994-11-01

Seidleck, James J.

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

Synthetic resins

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

525129, C08L 2706, C08L 7504

Patent

active

053608712

ABSTRACT:
An improved vinyl chloride resin-based composite material is provided by melt-mixing a vinyl chloride resin with a polymeric polyol of 300-10,000 MW and a polyisocyanate having at least three isocyanate group under shearing force while allowing said polyol and polyisocyanate to react. The composite material has a content of tetrahydrofuran-insolubles of about 5-55% by weight. The composite material exhibits chemical and physical properties suitable for use in packing and sealing applications.

REFERENCES:
patent: 2606162 (1949-01-01), Coffey et al.
patent: 5225487 (1993-07-01), Kobayashi et al.

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