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US 11,884,761 B2Granted
Latex composition
AssigneeZeon Corporation
InventorsJunji Kodemura, Misa Hayashi
Life of this patent
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Abstract
A latex composition containing a carboxy-modified polymer latex, a xanthogen compound, and a typical metal compound in a form other than an oxide. This latex composition has excellent stability, can avoid delayed (Type IV) allergic reactions in addition to immediate (Type I) allergic reactions, and can provide a molded film, such as a dip-molded product, having excellent tear strength and tensile strength. Also a molded film and a substrate with an adhesive layer which are obtained using the latex composition.
Claims9
A latex composition comprising:
- a carboxy-modified synthetic polyisoprene latex;
- a zinc diisopropyl xanthate;
- and
- a typical metal compound in a form other than an oxide,
- wherein
- the carboxy-modified synthetic polyisoprene latex is comprised of a carboxy-modified synthetic polyisoprene obtained by modifying a synthetic polyisoprene with a monomer having a carboxyl group selected from the group consisting of acrylic acid and methacrylic acid, and a content of isoprene units in the synthetic polyisoprene is 95 wt % or more with respect to the total monomer units of the synthetic polyisoprene,
- a typical metal constituting the typical metal compound is zinc, magnesium, calcium, aluminum, or lead,
- a content of the zinc diisopropyl xanthate is 0.01 to 10 parts by weight with respect to 100 parts by weight of the carboxy-modified synthetic polyisoprene contained in the carboxy-modified synthetic polyisoprene latex, and
- the latex composition is free from dithiocarbamate vulcanization accelerators and thiazole vulcanization accelerators.
6 more elements
Dependencies are inferred from the claim text.