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:
Apr. 17, 2001
Filed:
Mar. 06, 2000
Applicant:
Inventors:
Stanely L. Hager, Cross Lanes, WV (US);
Jack R. Reese, II, Cross Lanes, WV (US);
Assignee:
Bayer Antwerp N.V., Antwerpen, BE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 1/814 ;
U.S. Cl.
CPC ...
C08G 1/814 ;
Abstract
Dispersion polyols which are liquid-liquid dispersions containing a first having a substantially Polyoxypropylene internal block having an equivalent weight in excess of about 700 Da and a high oxyethylene-content external block, and a second polyol which is a substantially polyoxyethylene polyol containing minimally 50 weight percent oxyethylene moieties. The dispersion polyols are stable and exhibit broad processing latitude when preparing hypersoft polyurethane foams. The dispersion polyols are advantageously prepared in situ, preferably in the presence of a double metal cyanide oxyalkylation catalyst.