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:
Aug. 10, 2004
Filed:
Jul. 02, 2001
Applicant:
Inventors:
Gregorio Di Cesare, Cerro Maggiore, IT;
Renato Angelo Colnaghi, Pogliano Milanese, IT;
Assignee:
Cryovac, Inc., Duncan, SC (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B 3/26 ;
U.S. Cl.
CPC ...
B32B 3/26 ;
Abstract
A thermoformable, multilayer, co-extruded sheet comprising at least two separate foam polypropylene layers obtained by chemical foaming of two polyproplene resins having different flexural modulus, a “high modulus” polypropylene and a “low modulus” polypropylene. The presence of two different foam layers of polypropylene of different modulus allows obtaining a thermoformable sheet with the desired balance between thermoformability and stiffness.
Di Cesare, Gregorio. (2004). Thermoformable multi-layer polypropylene foam sheet (U.S. Patent No. 6773796). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6773796
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile