The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 10, 2014
Filed:
May. 24, 2011
Peter S. Martin, Houston, TX (US);
Peter S. Dias, Missouri City, TX (US);
Jason C. Brodil, Rosharon, TX (US);
Li-min Tau, Lake Jackson, TX (US);
Debra R. Wilson, Missouri City, TX (US);
Jeffrey D. Goad, Barboursville, WV (US);
Matthew J. Fedec, Lake Jackson, TX (US);
Peter S. Martin, Houston, TX (US);
Peter S. Dias, Missouri City, TX (US);
Jason C. Brodil, Rosharon, TX (US);
Li-Min Tau, Lake Jackson, TX (US);
Debra R. Wilson, Missouri City, TX (US);
Jeffrey D. Goad, Barboursville, WV (US);
Matthew J. Fedec, Lake Jackson, TX (US);
Braskem America, Inc., Philadelphia, PA (US);
Abstract
Propylene impact copolymers (ICPs) are provided which comprise: (a) a matrix phase which comprises from 60 to 95 weight % of a polypropylene polymer containing from 0 to 6 mole % of units derived from one or more alpha-olefins other than propylene, and (b) a dispersed phase which comprises from 5 to 40 weight % of a copolymer derived from a first comonomer which can be either propylene or ethylene together with a second alpha-olefin comonomer. The ICP is further characterized by having a beta/alpha ratio less than or equal to 1.1. The ICPs of the present invention are particularly well suited for applications requiring clear, tough polymers such as thin walled injection molded articles for frozen food packaging applications.