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. 12, 2001
Filed:
Oct. 20, 1995
Applicant:
Inventors:
William D. McIntyre, Oakland, CA (US);
Roderick R. Alire, Fremont, CA (US);
Ronald N. Clazie, Menlo Park, CA (US);
Assignee:
Free-Flow Packaging International, Inc., Redwood City, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
C08J 9/00 ;
U.S. Cl.
CPC ...
C08J 9/00 ;
Abstract
Method and composition for making an expanded polyethylene material by forming a foamable melt of polyethylene, a nucleating agent, a material which retards migration of alkanes, and a blowing agent which comprises 10 to 100 mole percent ethane. In one disclosed embodiment, the melt is passed through an annular extrusion die to form an elongated tube of extruded material which is then expanded, slit lengthwise and laid flat to form a sheet of the expanded material.