| 摘要 |
PROBLEM TO BE SOLVED: To develop a chloroprene polymer latex having strong adhesive force at a relatively low temperature between room temperature and 70°C and initial tackiness and low set value. SOLUTION: The chloroprene copolymer latex is composed of a chloroprene copolymer (A) containing 80-99.4 mass% unit derived from chloroprene (A-1), 0.5-10 mass% unit derived fromα,β-unsaturated carboxylic acid (A-2) and 0.1-15 mass% unit derived from 2,3-dichloro-1,3-butadiene (the sum of the amount of the unit derived from (A-1), the unit derived from (A-2) and the unit derived from (A-3) is 100 mass%) provided that the gel content of the copolymer (A) is≥0.1 mass% and <15 mass% and the weight-average molecular weight (Mw) of the THF-soluble component is 100,000-250,000. The invention further provides a method for the production of the latex. COPYRIGHT: (C)2007,JPO&INPIT
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