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...
Patent
1991-05-31
1994-02-08
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...
524430, 524459, 524460, 524457, 524503, C08K 334
Patent
active
052849007
ABSTRACT:
The present invention yields a coating film excellent in adhesion, water resistance, solvent resistance and durability. A compound having a carboxyl group and a long-chain alkylthio group or a salt thereof is used as an emulsifier and emulsion polymerization is carried out using a polymerizable monomer or monomers having, within their molecule, a group reactive with a carboxyl group as raw materials for emulsion polymerization, whereby the resin produced by emulsion polymerization and the emulsifier react with each other efficiently on the occasion of film formation and form a crosslinked structure. When a compound having a polymerizable unsaturated group in addition to the carboxyl group and long-chain alkylthio group or a salt thereof is used as the emulsifier, not only the above-mentioned crosslinked structure is formed but also the polymerizable unsaturated group in the emulsifier will react with the unsaturated group in the polymerizable monomer or monomers in the manner of grafting. As a result, the compatibility between the emulsifier and the emulsion-polymerized resin is improved.
REFERENCES:
patent: 4427819 (1984-01-01), Wessling et al.
patent: 4431768 (1984-02-01), Wessling et al.
patent: 4617343 (1986-10-01), Walker et al.
patent: 4885320 (1989-12-01), Biale
Chemical Abstracts, vol. 88, No. 24, p. 39, Jun. 12, 1978, abstract No. 171036n, & JP-A-78 10 683, Jan. 31, 1978, Y. Sasaki, "Oligomeric Copolymer Emulsifying Agents for Emulsion Polymerization of Vinyl Compounds".
Hatta Hidetoshi
Hori Kohei
Izubayashi Masuji
Kikuta Teruo
Matsunaga Toshiaki
Nippon Shokubai Co. , Ltd.
Oji Paper Co. Ltd.
Reddick J. M.
Schofer Joseph L.
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