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. 07, 1995
Filed:
Jul. 15, 1993
Aldemaro Ciaperoni, Milan, IT;
Enichem S.p.A., Milan, IT;
Abstract
Block copolyetheramide suitable for injection molding, consisting of polyamide blocks and polyalkylene ether blocks and having a melting point ranging from 215.degree. to 223.degree. C., an apparent viscosity, at 230.degree. C., ranging from 50 to 150 Pa, a number average molecular weight ranging from 10,000 to 50,000 and a yellow degree, measured by means of an Elrepho.RTM. apparatus, lower than or equal to 20. They are prepared by polymerizing the polyamide monomers in the presence of hypophosphorous acid or meta-hypophosphorous acid and then by polycondensing the polyamide with polyalkylene ether having hydroxyl end groups.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile