Document Type and Number:
Japanese Patent JPS50138028
Kind Code:
A
Abstract:
Binders for coating compositions are produced by an elevated temperature, aqueous phase polymerization, in the presence of an anionic emulsifier, polyethylene oxide and peroxydisulfate, of a monomer mixture consisting by weight of 10-85% vinyl aromatic component, which may be partially replaced by 0-20% of acrylonitrile, 15-90% by weight of diolefin component and up to 6% each of beta -unsaturated carboxylic acid or an amide thereof or a mixture thereof, characterized by employing a starting reaction mixture containing 0.05-0.5% of an anionic sulfonate or sulfate emulsifier; 0.5-5% of a polyethylene oxide having an average molecular weight of between 300 and 4,000; and 0.5-2% of a water-soluble peroxydisulfate; and, after a monomer conversion of between 15 and 35% by weight, adding to the reaction mixture another 0.2-1.5% of an anionic sulfonate or sulfate emulsifier.
Application Number:
JP4076475A
Publication Date:
November 04, 1975
Filing Date:
April 03, 1975
Export Citation:
International Classes:
C08F2/24; C08F2/26; C08F236/00; C08F236/04; C08F236/10; C09J121/00; C09J121/02; C08F2/00; C09J125/00; D06M15/693; D21H19/58; (IPC1-7): C08F2/24; C08L9/10; C08L25/10; C09J3/12; C09J3/14; D06C27/00; D21H3/00
Domestic Patent References:
| JPS4876932A | 1973-10-16 |