Patents by Inventor Rainer Schweda

Rainer Schweda 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).

  • Bottle closures made of polyolefins
    Patent number: 6573334
    Abstract: A bottle closure made from an olefin polymer composition (A) which includes: 1) 90-100% by weight of a crystalline propylene homopolymer or propylene/C2-C10 alpha-olefin random copolymer, those polymers containing at least 94% by weight of a fraction insoluble in xylene at room temperature; and 2) 0-10% by weight of an ethylene/C3-C10 alpha-olefin elastomeric copolymer, provided that when the amount of polymer (2) is 0% by weight, polymer (1) is one of the above random copolymers. Said composition (A) has a flexural elastic modulus value at 23° C. of at least 1620 MPa, a strength at yield at 23° C. of at least 33 MPa, and an IZOD impact resistance at 0° C. of at least 2.5 kJ/m2.
    Type: Grant
    Filed: October 16, 2000
    Date of Patent: June 3, 2003
    Assignee: Montell Technology Company BV
    Inventors: Silvio Pitteri, Rainer Schweda, Antonella Angelini