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.

Date of Patent:
Sep. 11, 2012

Filed:

Sep. 26, 2007
Applicants:

Lee A. Carvell, Bartlesville, OK (US);

Mark Wanderlich, Loganville, GA (US);

Susan L. Banovic, Hoschton, GA (US);

James Jalutkewicz, Duluth, GA (US);

Charles E. Rees, Bartlesville, OK (US);

Michael A. Smith, Bartlesville, OK (US);

Inventors:

Lee A. Carvell, Bartlesville, OK (US);

Mark Wanderlich, Loganville, GA (US);

Susan L. Banovic, Hoschton, GA (US);

James Jalutkewicz, Duluth, GA (US);

Charles E. Rees, Bartlesville, OK (US);

Michael A. Smith, Bartlesville, OK (US);

Assignees:

Chevron Phillips Chemical Company LP, The Woodlands, TX (US);

Silgan Holdings, Inc., Chesterfield, MO (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B 27/32 (2006.01); B32B 7/02 (2006.01); B29D 22/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

The present techniques provide multi-layer plastic structures and methods for making such. The multi-layer plastic structures include an inner surface made from a polyolefin resin, and resistant to environmental stress cracking, and an outer surface that includes a styrenic copolymer. The outer surface has a kinetic coefficient of friction with itself of 0.42 and a static coefficient of friction with itself of 0.44.


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