The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 05, 1990
Filed:
Mar. 04, 1988
Heinz Beck, Duren, DE;
Karl-Heinz Frassek, Langerwehe, DE;
Eduard M Verhulst, Zevenaar, NL;
Egenius A Giezen, Rheden, NL;
AKZO NV, Arnhem, NL;
Abstract
The copolymers of the invention are made from .alpha.,.beta.-unsaturated dicarboxylic acid esters and .alpha.-olefins. The .alpha.-olefins employed have 8 to 24 C-atoms and the .alpha.,.beta.-unsaturated dicarboxylic acid esters are made solely from ethoxylated alcohol with a degree of ethoxylation of 1 to 45. Also disclosed is a process for the production of these copolymers, in which either .alpha.-olefin having 8-24 C-atoms is copolymerized with .alpha.-.beta.-unsaturated dicarboxylic anhydride or .alpha.-.beta.-unsaturated dicarboxylic acid at temperatures of 80.degree.-210.degree. C. in the presence of a peroxide catalyst in an inert gas atmosphere, along with esterification with ethoxylated alcohol having a degree of ethoxylation of 1-45 in the mole ratio of 1:1 to 1:2 .alpha.-.beta.-unsaturated dicarboxylic acid or anhydride : ethoxylated alcohol, or by copolymerizing .alpha.-olefins having 8-24 C-atoms and .alpha.-.beta.-unsaturated dicarboxylic acid ester having ethoxylated alcohol with a degree of ethoxylation from 1 to 20 as alcohol component at temperatures of 140.degree.-210.degree. C. in the presence of a peroxide catalyst in an inert gas atmosphere. The copolymers are preferably used as lubricant for the shaping treatment of thermoplastic plastics.