Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1986-08-01
1988-04-12
Schofer, Joseph L.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
524186, 524236, 524253, 524401, 524811, 524833, 5263171, 5263182, 526271, 8 9419R, 5253302, 525378, 525379, 525380, 525381, 525382, C08C 3700, C08K 516, C08F13008, C08F12068
Patent
active
047375493
ABSTRACT:
Terpolymers of 30 to 75% by weight of maleic acid (anhydride), 5 to 60% by weight of (meth)acrylic acid and 5 to 40% by weight of (meth)acrylonitrile are suitable as retanning agents for mineral-tanned leather.
REFERENCES:
patent: 2205882 (1940-06-01), Graves
patent: 2873211 (1959-02-01), Roser et al.
patent: 4387191 (1983-06-01), Dufour et al.
Bomer Bruno
Schade Franz
Bayer Aktiengesellschaft
Kulkosky Peter F.
Schofer Joseph L.
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