Process for the manufacture of vinylidene fluoride polymers and

Details Process for the manufacture of vinylidene fluoride polymers and Process for the manufacture of vinylidene fluoride polymers and

1990-03-07

1992-03-10

Schofer, Joseph L.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526222, 526255, C08F 430, C08F 1422, C08F 238

Patent

active

050950819

ABSTRACT:
Process for the manufacture of vinylidene fluoride polymers by noncontinuous polymerization of vinylidene fluoride in an aqueous medium with the use of peroxydisulphates as initiators and in the absence of emulsifying agent, in which an alkyl acetate, employed as a chain-control agent, is introduced into the initial aqueous charge intended for the polymerization.
Use of the resulting vinylidene fluoride polymers for the manufacture of paints and, more particularly, of paints intended for prelacquering metal sheets with improved gloss.

REFERENCES:
patent: 2965595 (1960-12-01), Brinker et al.
patent: 3031437 (1962-04-01), Iserson
patent: 3032543 (1962-05-01), Bro et al.
patent: 3069401 (1962-12-01), Gallagher
patent: 3637631 (1972-01-01), Sianesi et al.
patent: 3640985 (1972-02-01), Stevens
patent: 3707529 (1972-12-01), Gladding et al.
patent: 3714137 (1973-01-01), Lienhard et al.
patent: 4524197 (1985-06-01), Khan
patent: 4739024 (1988-04-01), Moggi et al.
Abstract of Japanese Patent A-58-65-711, vol. 7, No. 155; Jul. 7th, 1983.

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