Composition for dip forming and molding obtained by dip forming

Details Composition for dip forming and molding obtained by dip forming Composition for dip forming and molding obtained by dip forming

2005-03-29

2010-02-16

Teskin, Fred M (Department: 1796)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C525S373000, C524S822000, C002S168000

Reexamination Certificate

active

07662890

ABSTRACT:
A dip-forming composition of the present invention comprises a dip-forming latex containing a copolymer obtained by copolymerizing 100 parts by weight of a monomer mixture containing 70 to 85 parts by weight of a conjugated diene monomer, 10 to 28 parts by weight of an aromatic vinyl monomer, 2 to 5 parts by weight of an ethylenically unsaturated acid monomer and 0 to 18 parts by weight of other monomer copolymerizable with these monomers, said copolymer having a toluene insoluble content of 30% by weight or more and a toluene swelling degree of 70 times or less; and a vulcanizing agent, a vulcanization accelerator and zinc oxide which are blended in said latex in amounts of 0.5 to 2 parts by weight, 0.25 to 1 part by weight and 0.5 to 1 part by weight, respectively, on the basis of 100 parts by weight of a solid content of the latex. There can be provided a dip-formed article exhibiting an excellent touch and feel, sufficient tensile strength and elongation at break and an excellent persistence of close fitting, as well as a dip-forming composition capable of providing such a dip-formed article.

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Database WPI, Section Ch., Week 200421, Thomas Scientific, London, GB; an 2004-217524, (Oct. 10, 2003) XP002520539.

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