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:
Jun. 04, 1985
Filed:
Jul. 11, 1984
Applicant:
Inventors:
Takatsugu Ishido, Himeji, JP;
Takeshi Horikawa, Himeji, JP;
Assignee:
Daicel Chemical Industries, Ltd., Sakai, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
525437 ; 525418 ; 528300 ; 528301 ; 528302 ; 528308 ;
Abstract
A process for preparing polyester elastomers from a dicarboxylic acid, mainly an aromatic dicarboxylic acid, or an ester-forming derivative thereof, a low molecular weight glycol, mainly 1,4-butanediol, and a polyoxyalkylene glycol is provided. This process is characterized in that at least 10 wt. % of the polyoxyalkylene glycol comprises a poly(oxy-2-methyl-3,3-propylene)diol. The obtained polyester elastomers have excellent low-temperature properties and elastic recovery.