Particulate hydroperoxidized poly-N-vinyl lactam, its preparatio

Details Particulate hydroperoxidized poly-N-vinyl lactam, its preparatio Particulate hydroperoxidized poly-N-vinyl lactam, its preparatio

1988-07-25

1989-05-23

Schofer, Joseph L.

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524548, C08F 806

Patent

active

048331961

ABSTRACT:
Particulate hydroperoxidized poly-N-vinyl lactam containing an average of about 0.5 to 20 hydroperoxy mole equivalents per mole of poly-N-vinyl lactam, the preparation of the same by subjecting particulate poly-N-vinyl lactam to an effective amount of ozone, and the use thereof in the preparation of graft copolymers possessing a low degree of extractibles, finding utility in a wide number of fields, particularly in biomedical devices, semipermeable membranes, and as films or fibers.

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