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. 16, 1977
Filed:
May. 29, 1975
Applicant:
Inventors:
Robert B Hanson, Aurora, IL (US);
James R Stephens, Naperville, IL (US);
Assignee:
Standard Oil Company (Indiana), Chicago, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ; B32B / ;
U.S. Cl.
CPC ...
428423 ; 260 / ; 260 / ; 428424 ; 428458 ; 428474 ;
Abstract
Polyamides are prepared by reacting aromatic diacid with aromatic or aliphatic diamine in the molar ratio of about 1:0.5 to about 1:0.9 and then reacting this product with at least 0.1 to about 0.5 up to about 0.75 moles of an aromatic or an aliphatic diisocyanate. The products are useful as wire enamels, coatings, and molding resins as well as films, fibers, adhesives, and impregnating materials.
Hanson, Robert. (1977). Products and process for preparation of polyamides and shaped articles (U.S. Patent No. 4042750). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4042750
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile