Latexes of encapsulated vinylidene chloride copolymer particles

Details Latexes of encapsulated vinylidene chloride copolymer particles Latexes of encapsulated vinylidene chloride copolymer particles

1978-04-24

1979-05-29

Lilling, Herbert J.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 296RB, 260 296RW, 260 297DP, 260879, 260890, 428307, 260880R, 260 297H, 260 297T, C08L 908, C08L 910, C08L 1302, C08L 1502

Patent

active

041566696

ABSTRACT:
Improved aqueous vinylidene chloride copolymer latexes are provided in which the dispersed polymer particles are heterogeneous and comprise from about 35 to about 75 weight percent of polymerized vinylidene chloride. The heterogeneous polymer particles of such latexes contain a major amount of a soft copolymer core comprising vinylidene chloride and an aliphatic conjugated diene. Such particles also contain a minor amount of a polymeric shell which encompasses the core portion and which consists essentially of (a) a monomer selected from the group consisting of aliphatic conjugated dienes, monovinylidene aromatic monomers and saturated aliphatic esters of monoethylenically unsaturated carboxylic acids; (b) optionally, up to about 30 weight percent (based upon the shell) of vinylidene chloride; and (c) optionally, up to about 10 weight percent based upon such shell of a monoethylenically unsaturated carboxylic acid.

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patent: 3745136 (1973-07-01), Huhn et al.
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