One-step process for making lightly-crosslinked polyvinylpyrroli

Details One-step process for making lightly-crosslinked polyvinylpyrroli One-step process for making lightly-crosslinked polyvinylpyrroli

1996-05-16

1997-08-05

Schofer, Joseph L.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526 62, 526 53, C08F22610, C08F 200

Patent

active

056543859

ABSTRACT:
A one-step for making a lightly-crosslinked polyvinylpyrrolidone hydrogel by polymerizing vinyl pyrrolidone in water in the presence of a suitable crosslinker such as 1-vinyl-3(E)-ethylidene pyrrolidone and a free radical initiator under initial agitation conditions sufficient to overcome the inertia of the polymer when formed.

REFERENCES:
patent: 5354823 (1994-10-01), Tseng et al.

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