Polymerization process

Details Polymerization process Polymerization process

1987-04-01

1988-06-28

Schofer, Joseph L.

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

523337, 526214, 526224, C08F 232

Patent

active

047539810

ABSTRACT:
A water-in-oil emulsion polymerization process is provided for preparing water-in-oil latexes of water-soluble polymers of ethylenically unsaturated monomers. The process utilizes as a chain transfer agent a thiol having the formula HS-Y(Z).sub.x wherein Y is a hydrocarbyl radical having 2-5 carbons and a valence of x+1; Z is selected from the group consisting of --OH, --CO.sub.2 H and --CO.sub.2 R wherein R is an alkyl radical of 1-3 carbon atoms; x is an integer of 1 or 2 and wherein the total number of carbon atoms per molecule of the thiol is 2-7.

REFERENCES:
patent: 3975341 (1976-08-01), Trepasso
patent: 4189552 (1980-02-01), Kuwata et al.
patent: 4252706 (1981-02-01), Phillips et al.
patent: 4265796 (1981-05-01), Mueller-Mall et al.
patent: 4339371 (1982-07-01), Robinson et al.
patent: 4450261 (1984-05-01), Chiao et al.
patent: 4564508 (1984-08-01), Easterly, Jr.
R. A. Gray, "Preparation of Acrylic Oligomers for High Solids Coatings Using Hydroxy-Functional Mercaptan Chain.

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