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:
Nov. 07, 2000
Filed:
May. 14, 1999
Applicant:
Inventors:
Donald W Simroth, Charleston, WV (US);
Xinhua Zhou, West Chester, PA (US);
Charles V Rose, Newtown Square, PA (US);
Assignee:
Bayer Antwerp N.V., Antwerp, BE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J / ; C08L / ; C08L / ;
U.S. Cl.
CPC ...
521123 ; 521137 ; 521174 ;
Abstract
Polymer polyols and polymer-modified polyols having substantially no transition metal content in the polyol continuous phase may be prepared from encapsulative double metal cyanide complex-catalyzed polyoxyalkylene polyether base polyols without substantial removal of double metal cyanide complex catalyst residues from the base polyol and subsequent in situ polymerization of one or more polymerizable monomers.