Patents by Inventor Albertus O. Dozeman

Albertus O. Dozeman 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).

  • THERMOPLASTIC ELASTOMER COMPOSITION
    Publication number: 20090076209
    Abstract: The present invention is directed to a thermoplastic elastomer composition comprising a thermoplastic polyolefine, an elastomer and oil whereby the composition comprises less than 15% by weight of the thermoplastic polyolefine, relative to the total weight of the thermoplastic elastomer composition, the elastomer is peroxide vulcanized and the weight ratio oil/elastomer is above 1.5. Preferably the elastomer is a copolymer of ethylene, propylene (EPM) or a copolymer of ethylene, propylene and a third monomer (EPDM) or a mixture of EPDM and EPM. The thermoplastic polyolefine is preferably polyethylene, polypropylene or a mixture thereof.
    Type: Application
    Filed: November 7, 2008
    Publication date: March 19, 2009
    Applicant: DSM IP Assets B.V.
    Inventor: Albertus O. DOZEMAN
  • Thermoplastic vulcanisate, the thermoplastic vulcanisate containing a foaming agent and foam of the thermoplastic vulcanisate
    Patent number: 6750292
    Abstract: Thermoplastic vulcanisate containing 5-70 parts by weight semi-crystalline polyolefine, 95-30 parts by weight rubber containing an at least partly vulcanised polymer, which polymer contains ethylene monomeric units, monomeric units derived from an alpha-olefine and monomeric unit derived from a non-conjugated polyene, and oil whereby the sum of the concentration of aromatic compounds and the concentration of polar compounds in the oil being less than 4.5 wt. %.
    Type: Grant
    Filed: March 21, 2002
    Date of Patent: June 15, 2004
    Assignee: DSM N.V.
    Inventors: Albertus O. Dozeman, Yundong Wang
  • Thermoplastic vulcanisate, the thermoplastic vulcanisate containing a foaming agent and foam of the thermoplastic vulcanisate
    Publication number: 20020188076
    Abstract: Thermoplastic vulcanisate containing 5-70 parts by weight semi-crystalline polyolefine, 95-30 parts by weight rubber containing an at least partly vulcanised polymer, which polymer contains ethylene monomeric units, monomeric units derived from an alpha-olefine and monomeric unit derived from a non-conjugated polyene, and oil whereby the sum of the concentration of aromatic compounds and the concentration of polar compounds in the oil being less than 4.5 wt. %.
    Type: Application
    Filed: March 21, 2002
    Publication date: December 12, 2002
    Inventors: Albertus O. Dozeman, Yundong Wang
  • Process for the preparation of a thermoplastic elastomer
    Patent number: 6051681
    Abstract: The invention relates to a process for the preparation of a thermoplastic elastomer comprising preparing a blend of a rubber and a thermoplastic resin, in which the rubber is at least partially vulcanized by using a phenolic curative. The invention is that, to overcome problems with surface quality, an effective amount of a Lewis base is added after the desired degree of vulcanization of the rubber is obtained.The invention also relates to a process for the preparation of an UV-stable thermoplastic elastomer.
    Type: Grant
    Filed: May 15, 1998
    Date of Patent: April 18, 2000
    Assignee: DSM N.V.
    Inventors: Albertus O Dozeman, Pieter Gijsman, Herman A. J. Schepers, Wilhelmus A. M. Debets
  • Thermoplastic elastomer
    Patent number: 5907004
    Abstract: The invention relates to a thermoplastic elastomer comprising a blend of a rubber and a thermoplastic resins the rubber being at least partially cured with a phenolic curative. The invention is that, to overcome problems with surface cracking, the thermoplastic elastomer also comprises a hydrolysis-insensitive HALS-compound.The invention also relates to the preparation of such a thermoplastic elastomer.
    Type: Grant
    Filed: August 7, 1997
    Date of Patent: May 25, 1999
    Assignee: DSM N.V.
    Inventors: Albertus O. Dozeman, Pieter Gijsman