Copolymer latex, method for preparing the same and use thereof

Details Copolymer latex, method for preparing the same and use thereof Copolymer latex, method for preparing the same and use thereof

1993-03-02

1994-11-29

Morgan, Kriellion S.

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524562, 524841, 526227, 5263186, C08L 3306, C08F 428

Patent

active

053691660

ABSTRACT:
A copolymer latex is provided which comprises 30 to 90% by weight of a conjugated diene monomer unit, 9 to 50% by weight of an ethylenically unsaturated nitrile monomer unit, 0.1 to 20% by weight of an ethylenically unsaturated acid monomer unit and 0 to 20% by weight of an other ethylenically unsaturated monomer unit copolymerizable therewith, having a polystyrene-converted weight average molecular weight of 50,000 to 500,000, and containing 45% or less of methyl ethyl ketone insoluble matter. The latex is presented by emulsion polymerization using a polymerization initiator containing a peroxide whose decomposition temperature giving a half-life period of 10 hours is 100.degree. C. or higher and a reducing agent. The latex is used advantageously for dip molding.

REFERENCES:
patent: 4102844 (1978-07-01), Schwinum et al.
Database WPI Section Ch, Week 0575 Derwent Publications Ltd., London, GB; Class A, AN 75-08380W & JP-A-49 113 891 (Japan Zeon Co) 30 Oct. 1974.
Chemical Abstracts, vol. 85, No. 16, 1976, Columbus, Ohio, abstract No. 109740x, Basov B. K. et al. -Synthesis . . . ` & `Prom-st. Stint. Kauch. (4), 12-14 `.
Chemical Abstracts, vol. 96, No. 26, 1982, Columbus, Ohio, abstract No. 219041e, Jarm V. et al. `Emulsion . . . ` & `Polymeri (Zagreb), 3(1), 291.varies.31`.

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