PURPOSE: To obtain the titled adhesive having a low minimum film-forming temperature, improved stability and adhesiveness, by grafting an acrylic or methacrylic ester onto styrene-butadiene block copolymer, and adding a solvent to the graft copolymer.
CONSTITUTION: 5W150pts.wt. an acrylic or methacrylic ester is grafted onto 100pts.wt. a block copolymer expressed by the formula (A-B)n, A-(B-A)n or (A-B)mX (A is styrene polymer block; B is butadiene or isoprene polymer block; (n) is an integer≥1; (m) is an integer≥3; X is a polyfunctional compound in which (m) polymer chains are linked) in the presence of a radical polymerization initiator by the emulsion method. The solvent is left in the resultant polymer emulsion in the desolvation step to give the aimed adhesive with a content of the solvent 0.2W1.5 times that of the solid content.
YAMAGUCHI KOUICHI
TSUNODA KAZUNARI
ISHIKAWA HITOSHI
OKUMURA JIYOUJIROU
SHIKATA TOORU
KISHIBE MASAYUKI
YAMAGUCHI KOUICHI
TSUNODA KAZUNARI
ISHIKAWA HITOSHI
OKUMURA JIYOUJIROU
SHIKATA TOORU
KISHIBE MASAYUKI
| JPS55125175A | 1980-09-26 | |||
| JPS54146889A | 1979-11-16 |
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