Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...
Patent
1972-10-13
1978-02-28
Wong, Jr., Harry
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Polymers from only ethylenic monomers or processes of...
3 1, 32 2, 128 82, 351175, 526208, 526209, 526213, 526272, 526264, 526303, 526312, 526317, 526320, C08F22020
Patent
active
040769216
ABSTRACT:
A starting monomer mixture containing a minor amount of a cross linking agent is precipitation polymerized in a diluent/precipitant which is an unlimited solvent for the starting monomers but is neither a solvent nor a substantial swelling agent for the resultant polymer. The resultant product falling from the polymerization contains soluble and insoluble hydrophilic polymers and copolymers.
REFERENCES:
patent: 2129722 (1938-09-01), Woodhouse
patent: 3255135 (1966-06-01), Schmidle
patent: 3575946 (1971-04-01), Chromecek et al.
patent: 3699089 (1972-10-01), Wichterle
Stol Miroslav
Stoy Vladimir
Tuzar Zdenek
Ceskoslovenska akademie ved
Wong, Jr. Harry
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