Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1989-12-01
1991-03-12
Lipman, Bernard
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525207, 525221, C08F 800
Patent
active
049994000
ABSTRACT:
The invention relates to metal carboxylate derivatives of partially esterified .alpha.-olefin unsaturated polycarboxylic acid copolymers, the .alpha.-olefin containing 6 to 40 carbon atoms and the copolymer being esterified with an alcohol. At least 80 percent by weight of the unesterified copolymer has a molecular weight in the range from 1000 to 100,000. Preferably, the .alpha.-olefin is maleic anhydride and the alcohol contains 4 to 18 carbon atoms. The present compounds are surprisingly satisfactory internal and external lubricants for synthetic resin such as PVC. Furthermore, the present compounds can be used as emulsifying and/or suspending agents, in particular when the alcohol is a polyethylene oxide glycol ether with 1 to 50 ethylene oxide units.
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Beck Heinz
Frassek Karl-Heinz
Kuhne Helmut
Lanzrath Gunther
Sonderhof Dieter
Akzo N.V.
Lipman Bernard
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