Nontacky shaped objects from polymer latices

Details Nontacky shaped objects from polymer latices Nontacky shaped objects from polymer latices

1978-12-18

1980-11-04

Dixon, Jr., William R.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521 71, 521 72, 1062861, 1062864, 10628717, 10628734, 252313R, 252313S, C08J 900, B01J 1300

Patent

active

042321263

ABSTRACT:
Nontacky, elastomeric shaped objects (e.g., pellets or filaments) comprising a normally tacky, uncured elastomer having an integral, porous coating of silicic or aluminic acid polymer can be prepared by bringing shaped bodies of a normally tacky, uncured elastomer latex into contact with an aqueous bath containing a soluble coagulating salt for the latex, and a silicic or aluminic acid polymer, and washing and drying the resulting coated shaped objects. The shaped objects are highly porous before washing and drying, and some porosity remains even after washing and drying.

REFERENCES:
patent: 2459748 (1949-01-01), Johnson
patent: 2574902 (1951-05-01), Bechtold et al.
patent: 2590833 (1952-04-01), Bechtold et al.
patent: 3007878 (1961-11-01), Alexander et al.
patent: 3053824 (1962-09-01), Heinz
patent: 3252917 (1966-05-01), Mindick et al.
patent: 3745126 (1973-07-01), Moore
patent: 3846365 (1974-11-01), Berg et al.

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