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:
Feb. 04, 1986
Filed:
Sep. 19, 1983
Applicant:
Inventors:
Ezio Ghirardello, Milan, IT;
Cesare Quacquarella, Milan, IT;
Paolo Colombo, Milan, IT;
Francesco Pezzana, Milan, IT;
Assignee:
W. R. Grace & Co., Cryovac Div., Duncan, SC (US);
Primary Examiner:
Int. Cl.
CPC ...
B27N / ;
U.S. Cl.
CPC ...
428 35 ; 4284749 ; 4284758 ; 4284763 ; 528324 ; 528325 ; 528338 ; 528339 ; 528340 ; 215 / ;
Abstract
The invention relates to laminated films and articles of manufacture based on such films and having improved resistance to heat treatment, wherein said films comprise a heat sealing layer of copolyamide obtained by random copolymerization of precursor monomers of at least two different polyamides. Said laminated films, or the articles of manufacture formed therefrom, such as bags or preformed containers, are useful for packaging applications, particularly in connection with food products.