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:
Mar. 06, 1990
Filed:
Apr. 13, 1988
Applicant:
Inventors:
Nan-Loh Yang, Staten Island, NY (US);
Andrew Auerbach, Livingston, NJ (US);
James L Paul, Summit, NJ (US);
Rose Pesce, College Point, NY (US);
Shian S Wang, New York, NY (US);
Assignee:
Hoechst Celanese Corp., Chatham, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
528249 ; 528244 ; 528392 ;
Abstract
The invention concerns a method for producing an acetal copolymer containing backbone bromo-functional groups comprising copolymerizing trioxane with 5,6,-dibromo-1,3-dioxepene. The invention also concerns methods of modifying acetal copolymers containing bromo-functional groups and the copolymers produced by the methods of the invention.