Sinterable, finely divided vinyl chloride molding composition an

Details Sinterable, finely divided vinyl chloride molding composition an Sinterable, finely divided vinyl chloride molding composition an

1981-05-14

1982-04-06

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...

525261, 525302, C08F26504

Patent

active

043236618

ABSTRACT:
The sinterable polyvinyl chloride molding composition described is composed of 99.8 to 97% by weight, relative to the molding composition, of a suspension graft copolymer which is, in turn, composed of 99.7 to 85% by weight of polymerized vinyl chloride units, 0.9 to 10.5% by weight of polymerized ethylene units and 0.09 to 10.5% by weight of polymerized vinyl acetate units, with the proviso that the total of the polymerized ethylene and vinyl acetate units is 0.3 to 15% by weight, relative to the graft copolymer, and also 0.01 to 0.5% by weight, relative to the molding composition, of at least one free alkylarylsulfonic acid having 3 to 16 C atoms in the alkyl chain or at least one alkylsulfonic acid having 8 to 16 C atoms, and also 0.005 to 0.5% by weight, relative to the molding composition, of at least one water-soluble wetting agent which is free from metal ions and contains 12 to about 80 C atoms and a quaternary N atom which forms a salt with a carboxylic or sulfonic acid group. The molding composition gives sintered moldings, particularly separator plates for electrical cells, which have advantageous properties.

REFERENCES:
patent: 3322858 (1967-05-01), Coaker et al.
patent: 3358054 (1967-12-01), Bonn et al.
patent: 3632672 (1972-01-01), Kuhne et al.
patent: 4006201 (1977-02-01), Bauer et al.
patent: 4155954 (1979-05-01), Buning et al.

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