Chlorinated vinyl chloride resin composition

Details Chlorinated vinyl chloride resin composition Chlorinated vinyl chloride resin composition

1998-12-22

2000-10-31

Yoon, Tae

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

Synthetic resins

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

525239, 2642091, 524527, C08L 2706, B29D 2400

Patent

active

061404233

ABSTRACT:
A chlorinated vinyl chloride resin composition, which is suitably used for the production of extruded pipes, containing a chlorinated vinyl chloride resin which has a polymerization degree of from 600 to 1500 prior to chlorination and a chlorination degree of from 62 to 70 wt. %, methyl methacrylate-butadiene-styrene copolymer particles having a butadiene content of less than 60 wt. % and a styrene content of larger than 30 wt. % in the whole particles, and a chlorinated polyethylene having a chlorine content of from 10 to 50 wt. %, in which the methyl methacrylate-butadiene-styrene copolymer particles have an average dispersed particle size of 2,000 angstroms or less in an extruded pipe produced from the composition.

REFERENCES:
patent: 5194471 (1993-03-01), Hartitz
patent: 5591497 (1997-01-01), Hartitz
patent: 5604278 (1997-02-01), Hartitz
patent: 5981663 (1999-11-01), Backman et al.
Database WPI; Derwent Publications Ltd.; Class A14; AN 96-272832; XP002098296; JP 08 113685; (Sekisui Chem Ind Co Ltd.); May 7, 1996.

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