Dip-forming composition and dip-formed article
A dip-forming composition which contains a weight average molecular weight 10,000 to 5,000,000 synthetic polyisoprene latex, a polycarboxylic acid and/or salt of a polycarboxylic acid, a sulfur-based vulcanizer, and a vulcanization accelerator is provided. According to the invention, a dip-forming composition which can suppress formation of coarse coagulum during aging and which can give a dip-formed article which is excellent in tensile strength and elongation even when the aging temperature is relatively low and the aging time is relatively short and, further, has excellent safety even when used in contact with the human body can be provided.
1. A dip-forming composition containing a latex of synthetic polyisoprene having a weight average molecular weight of 10,000 to 5,000,000, a homopolymer of a methacrylic acid and/or metal salt of a homopolymer of a methacrylic acid, a sulfur-based vulcanizer, and a vulcanization accelerator.
2. The dip-forming composition according to claim 1 wherein the polycarboxylic acid and/or salt of a polycarboxylic acid is a polymer which is polymerized using an oil-soluble polymerization initiator or salt of the polymer.
3. The dip-forming composition according to claim 1 , wherein the metal salt is a sodium salt.
4. The dip-forming composition according to claim 1 wherein the homopolymer of the methacrylic acid and/or metal salt of the homopolymer of the methacrylic acid has a weight average molecular weight of 1,000 to 300,000.
5. The dip-forming composition according to claim 1 wherein a content of the homopolymer of the methacrylic acid and/or metal salt of the homopolymer of the methacrylic acid is 0.01 to 20 parts by weight with respect to 100 parts by weight of the synthetic polyisoprene.
6. The dip-forming composition according to claim 1 further containing zinc oxide.
7. A dip-formed article obtained by dip-forming the dip-forming composition according to claim 1 .