Free radical solution polymerization of vinylpyrrolidone

Details Free radical solution polymerization of vinylpyrrolidone Free radical solution polymerization of vinylpyrrolidone

1993-02-12

1994-12-13

Schofer, Joseph L.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526227, 526264, C08F 404, C08F 434, C08F12610

Patent

active

053730747

ABSTRACT:
A free radical solution process for making PVP polymers having a molecular weight corresponding to a K-value of about 30-150, a narrow molecular weight distribution represented by a polydispersity of about 3 to 6, and a residual VP monomer level of less than 0.1%, which comprises:

REFERENCES:
patent: 4554312 (1985-11-01), Barabas et al.
patent: 5156914 (1992-10-01), Shih

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