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:
Oct. 04, 1977
Filed:
Jun. 24, 1974
Applicant:
Inventor:
Michael Edward Jones, Runcorn, EN;
Assignee:
Imperial Chemical Industries Limited, London, EN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ; C08G / ;
U.S. Cl.
CPC ...
260 49 ; 260823 ;
Abstract
Random or block copolymers having repeating units of the structures ##STR1## are crystallizable, in contrast to the regular alternating copolymer ##STR2## WHICH IS AMORPHOUS, AND THEY ARE USEFUL AS THERMOPLASTIC, FILM- AND FIBER-FORMING MATERIALS. They may be made by copolymerizing 4-phenoxyphenylsulphonyl and 4-phenoxybenzoyl chlorides in the presence of ferric chloride, or by copolymerizing alkali metal salts of 4-(4-chlorophenylsulphonyl) phenol and 4-(4-chlorobenzoyl) phenol.
Jones, Michael. (1977). Manufacture of crystallizable polymeric phenylene ether sulphone ketones (U.S. Patent No. 4052365). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4052365
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile