Patents by Inventor Guenter Schult

Guenter Schult has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Lubricant system for the processing of polyvinyl chloride
    Patent number: 4857216
    Abstract: A lubricant system for emulsion PVC of high K-value comprising:I. at least one ester from each of sections (A) and (B):A. a neutral ester substantially free from hydroxyl and carboxyl groups which is:(1) a mixed ester of an aliphatic, cycloaliphatic, or aromatic C.sub.2 -C.sub.22 -dicarboxylic acid, or a mixture thereof; an aliphatic polyol containing from 2 to 6 hydroxyl groups; and an aliphatic C.sub.12 -C.sub.30 -monocarboxylic acid; or is(2) a fatty acid fatty alcohol ester containing a total of 36 to 44 carbon atoms; or is(3) a mixture of (1) and (2); andB. a partial ester containing on average at least one free hydroxyl or carboxyl polar group which is:(1) a mixed ester of an aliphatic, cycloaliphatic, or aromatic C.sub.2 -C.sub.22 -dicarboxylic acid, or a mixture thereof; an aliphatic polyol containing from 2 to 6 hydroxyl groups; and an aliphatic C.sub.12 -C.sub.
    Type: Grant
    Filed: September 10, 1987
    Date of Patent: August 15, 1989
    Assignee: Neynaber Chemie GmbH
    Inventors: Kurt Worschech, Peter Wedl, Helmut Kachel, Guenter Schult