Patent ID: 8586670

Claim:
A chloroprene polymer latex mainly comprising 2-chloro-1,3-butadiene as a monomer component, wherein the gel content in the solid of the polymer latex is 1 mass % or less; and the weight average molecular weight of the components soluble in tetrahydrofuran is from 700,000 to 1,100,000 and the molecular weight distribution (Mw/Mn) is within the range of from 2.3 to 2.8; and the crystallization rate represented by R is less than 60 minutes, wherein R indicates the hardness increase of the dried solid content of the polymer latex at −10 ° C. (R is the time required for initial hardness (time =0) to increase by 30 points at −10 ° C. as measured according to Japanese Industrial Standard JIS K-6301).