Method for purifying high molecular weight vinylpyridine/styrene

Details Method for purifying high molecular weight vinylpyridine/styrene Method for purifying high molecular weight vinylpyridine/styrene

1991-01-25

1992-09-22

Michl, Paul R.

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

Synthetic resins

Treating polymer containing material or treating a solid...

528496, 528499, C08F 606, C08F 612

Patent

active

051497751

ABSTRACT:
Taste-masking composition for oral delivery of medicaments to non-ruminants, especially humans. The taste-masking composition contains a polymeric composition containing a flake material, a hydrophobic material, and a polymer containing repeating units from vinylpyridine derivatives. Also disclosed is a process for purifying polymers.

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