Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1993-04-08
1994-11-01
McCamish, Marion E.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
430270, 430287, 430909, 522149, 525 58, 525 59, C08F 800, G03C 168
Patent
active
053608640
ABSTRACT:
A process for preparing a compound having the structure ##STR1## which comprises heating under acidic conditions a polyvinyl alcohol and a compound of the structure ##STR2## is a polyvinyl acetal, n is an integer from 1 to 6,
REFERENCES:
patent: 2908667 (1959-10-01), Williams
patent: 4777114 (1988-10-01), Ichimura et al.
patent: 4920030 (1990-04-01), Ichimura et al.
patent: 5021505 (1991-06-01), Ichimura et al.
Ashton Rosemary
Baxley Charles E.
McCamish Marion E.
Ulano Corporation
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