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:
May. 25, 1993
Filed:
Dec. 20, 1991
Applicant:
Inventors:
Riccardo Po', Novara, IT;
Paolo Cioni, Novara, IT;
Ernesto Occhiello, Novara, IT;
Fabio Garbassi, Novara, IT;
Assignee:
Istituto Guido Donegani S.p.A., Novara, IT;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29D / ;
U.S. Cl.
CPC ...
428 341 ; 528272 ; 528298 ; 528302 ; 528305 ; 528307 ; 528308 ; 5283086 ; 525444 ; 428 357 ; 428480 ;
Abstract
Copolyesters having an improved combination of barrier, mechanical, thermal and rheological properties and consisting of acylic and glycolic radicals, wherein the acylic radicals derive from at least isophthalic acid and 2,6-naphthalene dicarboxylic acid and at least 90% by mols of the glycolic radicals derive from ethylene glycol.