Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1985-02-05
1985-10-15
Seccuro, Carman J.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525233, 525238, 524501, C08L 2706, C08L 3318
Patent
active
045475490
ABSTRACT:
A process for producing a powdery composite polymer, which comprises mixing in an aqueous medium (A) a particulate vinyl chloride polymer, (B) an elastomer containing a nitrile group and (C) a solvent for the elastomer (B) which is not miscible with water and is a poor solvent for the polymer (A), thereafter removing the solvent (C) from the mixture, and dehydrating and drying the mixture thereby to form a powdery composite polymer composed of the vinyl chloride polymer (A) and the nitrile group-containing elastomer (B).
REFERENCES:
patent: 3145189 (1964-08-01), Fourier
patent: 3151186 (1964-09-01), Lucke
patent: 3796677 (1974-03-01), Laber et al.
patent: 4194999 (1980-03-01), Hayashi et al.
patent: 4230832 (1980-10-01), Wei
Nakamura Mamoru
Shibata Fumio
Nippon Zeon Co. Ltd.
Seccuro Carman J.
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