Patents by Inventor Edwin Willems

Edwin Willems 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).

  • Publication number: 20090068390
    Abstract: The present invention relates to a film comprising a vulcanised thermoplastic elastomer, a polypropylene based polyolefine composition and optionally an ethylene polymer. The film for example comprises from 30-90 parts by weight of vulcanised thermoplastic elastomer, 5-65 parts by weight of the polypropylene based polyolefin composition and optionally from 0-50 parts by weight of the ethylene polymer wherein said parts by weight are based upon 100 parts by weight of the vulcanised thermoplastic elastomer, the polypropylene based polyolefin composition and the ethylene polymer. The films are used in soft touch applications, consumer applications, medical applications, hygienic applications, packaging, and automotive or clothing applications. The films are for example useful in baby diapers, surgical drapes, surgical pouches, hospital linens, diaper waist bands and side tabs, adult incontinence products, feminine hygiene products and wound care products.
    Type: Application
    Filed: December 22, 2006
    Publication date: March 12, 2009
    Inventor: Edwin Willems
  • Patent number: 7026028
    Abstract: Multi-layer moulding, containing a body part and a surface layer which at least partly covers the body part, which body part contains a cross-linked elastomer composition and which surface layer contains a thermoplastic elastomer, in which the surface layer of the multi-layer moulding, in a weather resistance test according to DIN 75202, in which the surface layer is continuously exposed for at most 100 hours to light from a xenon light source, which light source is provided with a borosilicate “S” inner filter and a soda lime outer filter, at a relative humidity of 30%, with an intensity of 1.40 W/m2 at 420 nanometres on the surface of the moulding, a black standard temperature of 100° C., in a space with a temperature of 66° C., develops a colour deviation with a ?E of at most 3.0, measured according to ASTM D 1925.
    Type: Grant
    Filed: June 19, 2002
    Date of Patent: April 11, 2006
    Assignee: DSM IP Assets B.V.
    Inventors: Pieter Gijsman, Gerardus L. M. Vroomen, Edwin Willems
  • Publication number: 20050048238
    Abstract: Multi-layer moulding, containing a body part and a surface layer which at least partly covers the body part, which body part contains a cross-linked elastomer composition and which surface layer contains a thermoplastic elastomer, in which the surface layer of the multi-layer moulding, in a weather resistance test according to DIN 75202, in which the surface layer is continuously exposed for at most 100 hours to light from a xenon light source, which light source is provided with a borosilicate “S” inner filter and a soda lime outer filter, at a relative humidity of 30%, with an intensity of 1.40 W/m2 at 420 nanometres on the surface of the moulding, a black standard temperature of 100° C., in a space with a temperature of 66° C., develops a colour deviation with a ?E of at most 3.0, measured according to ASTM D 1925.
    Type: Application
    Filed: June 19, 2002
    Publication date: March 3, 2005
    Inventors: Pieter Gijsman, Gerardus Vroomen, Edwin Willems
  • Publication number: 20040097649
    Abstract: The subject invention relates to a thermoplastic elastomer composition that contains a dynamically vulcanized thermoplastic elastomer (a) on the basis of a polypropylene polymer and an at least partly dynamically vulcanized rubber, a thermoplastic polyester block copolymer (b) and a compatibilizer (c). The rubber is preferably an EPDM or EPM copolymer. The thermoplastic polyester block copolymer is preferably a polyether ester block copolymer. The thermoplastic elastomer composition according to the invention for instance contains 20-80 parts (a), 80-20 parts (b), and 1-40 parts (c), the sum of the parts (a+b+c) being 100.
    Type: Application
    Filed: December 9, 2003
    Publication date: May 20, 2004
    Inventors: Edwin Willems, Mohammad R Sadeghi
  • Publication number: 20030181575
    Abstract: Thermoplastic elastomer composition comprising: a) at least one thermoplastic polyolefin polymer b) at least one dynamically vulcanized rubber in which the quantity of a) is 10-90% by weight and the quantity of b) is 90-10% by weight relative to the total quantity of thermoplastic polyolefin polymer and rubber and c) 1-250 parts of oil per 100 parts of rubber, in which the oil comprises an isoparaffinic oil.
    Type: Application
    Filed: May 27, 2003
    Publication date: September 25, 2003
    Inventors: Angelika Schmidt, Maria Soliman, Jacobus C.J. Tacx, Edwin Willems
  • Patent number: 6462132
    Abstract: The subject invention relates to a thermoplastic elastomer composition that contains a dynamically vulcanized thermoplastic elastomer (a) on the basis of a thermoplastic polyolefin and an at least partly dynamically vulcanized rubber, a thermoplastic polyester block copolymer (b) and a compatibilizer (c). The thermoplastic polyolefin is preferably a propylene homo- or copolymer. The rubber is preferably an EPDM or EPM copolymer. The thermoplastic polyester block copolymer is preferably a polyether ester block copolymer. The thermoplastic elastomer composition according to the invention for instance contains 20-80 parts (a), 80-20 parts (b), and 1-40 parts (c), the sum of the parts (a+b+c) being 100. The thermoplastic elastomer composition according to the invention also relates to molded articles that contains the thermoplastic elastomer composition.
    Type: Grant
    Filed: January 9, 2001
    Date of Patent: October 8, 2002
    Assignee: DSM N.V.
    Inventors: Edwin Willems, Mohammad R. Sadeghi
  • Publication number: 20020132920
    Abstract: The subject invention relates to a thermoplastic elastomer composition that contains a dynamically vulcanized thermoplastic elastomer (a) on the basis of a thermoplastic polyolefin and an at least partly dynamically vulcanized rubber, a thermoplastic polyester block copolymer (b) and a compatibilizer (c). The thermoplastic polyolefin is preferably a propylene homo- or copolymer. The rubber is preferably an EPDM or EPM copolymer The thermoplastic polyester block copolymer is preferably a polyether ester block copolymer. The thermoplastic elastomer composition according to the invention for instance contains 20-80 parts (a), 80-20 parts (b), and 1-40 parts (c), the sum of the parts (a+b+c) being 100.
    Type: Application
    Filed: January 9, 2001
    Publication date: September 19, 2002
    Inventors: Edwin Willems, Mohammad Reza Sadeghi
  • Patent number: 6270896
    Abstract: An elastic fiber of a mixture containing a copolyether ester or a copolyester ester and a chemically crosslinked rubber, which fiber has a permanent elongation after 100% stretching of at most 9% and an elongation at break of at least 450% and a process for producing an elastic fiber comprising the melt spinning of a mixture of a copolyether ester or a copolyester ester and a rubber to form a fiber, in which the rubber is completely or almost completely crosslinked at the moment the fiber is formed, and are disclosed.
    Type: Grant
    Filed: November 30, 1998
    Date of Patent: August 7, 2001
    Assignee: DSM N.V.
    Inventors: Cornelis W. M. Bastiaansen, Franciscus W. M. Gelissen, Edwin Willems, Cornelis Versluis