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. 28, 1989
Filed:
May. 11, 1988
Applicant:
Inventors:
Klaus Konig, Odenthal, DE;
James M Barnes, Wermelskirchen, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen Bayerwerk, DE;
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
528 76 ; 528367 ; 528370 ; 528372 ; 558266 ;
Abstract
Polyether polycarbonate diols based on 1,6-hexanediol and having a molecular weight of from 500 to 12,000 are made by etherifying 50-100 mole % 1,6-hexane-diol in the presence of 0-50 mole % of specified diols and reacting the resultant polyether with a compound selected from diarylcarbonates, dialkyl carbonates, dioxolanones, hexanediol bischlorocarbonic acid esters, phosgene and urea. These diols are particularly useful in the production of polyurethanes having improved physical properties.