Patents by Inventor Jan-Peter Piesold

Jan-Peter Piesold 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).

  • Polyarylene sulfide molding composition
    Patent number: 5646202
    Abstract: A molding composition comprising(A) from 20 to 80% by weight of at least one polyarylene sulfide,(B) from 1 to 60% by weight of at least one mineral filler,(C) from 1 to 65% by weight of at least one surface-modified mineral filler and(D) from 0.01 to 0.4% by weight of at least one saturated, long-chain carboxylic ester,can be injection-molded or extruded to give moldings which have high surface quality and isotropic property behavior. Metallization of the moldings proves to be durable, which makes them suitable for use in lamps, in particular reflectors and electronic functional parts.
    Type: Grant
    Filed: June 21, 1996
    Date of Patent: July 8, 1997
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Andreas Schleicher, Jan-Peter Piesold, Klaus Kohlhepp
  • Copolymers and their use as lubricants and release agents for processing thermoplastics
    Patent number: 5306437
    Abstract: Copolymers prepared by free radical polymerization of a C.sub.12 --C.sub.60 -.alpha.-olefin with a carboxylic acid of the formula CH.sub.2 .dbd.CR.sup.1 --COOH, a carboxylic acid ester of the formula CH.sub.2 .dbd.CR.sup.1 --COOR.sup.2 and, if appropriate, a styrene compound prove to be highly active lubricants and release agents in polymers, in particular in polyvinyl chloride, which scarcely influence the transparency of the polymers.
    Type: Grant
    Filed: August 18, 1993
    Date of Patent: April 26, 1994
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Franz-Leo Heinrichs, Gerd Hohner, Anton Lukasch, Jan-Peter Piesold
  • Waxy compounds of aromatic alcohols, their preparation and their use
    Patent number: 5164436
    Abstract: Waxy esters of aromatic alcohols with long-chain carboxylic acids give lubricants and release agents for highly transparent thermoplastics which reduce the transparency of these plastics to a far lesser degree than the previously customary montan wax esters of aliphatic alcohols.
    Type: Grant
    Filed: July 15, 1991
    Date of Patent: November 17, 1992
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Karl Maier, Gerd Hohner, Jan-Peter Piesold
  • Polyolefin molding composition
    Patent number: 4829116
    Abstract: A polyolefin molding composition, in particular based on LLDPE, containing a fluorine-containing polymer together with a wax, has a broad processing range in which no surface defects occur. The throughput on extrusion is greatly increased.
    Type: Grant
    Filed: March 10, 1988
    Date of Patent: May 9, 1989
    Assignee: Hoechst Aktiengesellschaft
    Inventor: Jan-Peter Piesold