Film-forming olefinic nitrile polymer latex and method of prepar

Details Film-forming olefinic nitrile polymer latex and method of prepar Film-forming olefinic nitrile polymer latex and method of prepar

1982-12-20

1985-03-12

Michl, Paul R.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524458, 525902, 525309, 525310, 525295, C08F 2034

Patent

active

045046050

ABSTRACT:
A stable aqueous latex of a copolymer containing at least about 40 percent by weight of a polymerized olefinic unsaturated nitrile is described. The copolymer comprises a main polymer core of from about 40 to 100 percent by weight of the polymerized nitrile and from about 0 to about 60 percent by weight of at least one other polymerized olefin monomer, said main polymer core being overpolymerized with a copolymer comprising a major proportion of a polymerized acrylate and from about one to 40 percent by weight of a polymerized olefinic unsaturated nitrile. A two-step method for preparing such a latex also is described. The latices of the invention are useful in forming films at low temperatures, and the minimum film forming temperature can be regulated by the selection of the particular components and the relative amounts of the components used to form the latices.

REFERENCES:
patent: 3296176 (1967-01-01), Fantl
patent: 3351602 (1967-11-01), Dunnavant et al.
patent: 4026970 (1977-05-01), Backderf et al.
patent: 4038344 (1977-07-01), Eisenbraun et al.

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