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. 12, 2002
Filed:
Dec. 03, 1999
Richard S. Pantone, New Martinsville, WV (US);
Peter H. Markusch, McMurray, PA (US);
Bayer Coporation, Pittsburgh, PA (US);
Abstract
This invention relates to high molecular weight liquid, non-migrating, non-functional polyether polyurethane plasticizers. These plasticizers comprise the reaction product of an isocyanate-terminated polyether prepolymer having an NCO group content of less than 13% and a monofunctional alcohol having a molecular weight of about 32 to about 1,000 and an OH number of about 56 to about 1750. The isocyanate-terminated polyether prepolymers comprise the reaction product of a diisocyanate and at least one polyether polyol. The present invention also relates to a process for the production of the liquid, non-migrating, non-functional polyether polyurethane plasticizers. This invention also relates to a process for the production of a polyurethane product comprising reacting at least one polyisocyanate component with at least one isocyanate-reactive component, in the presence of these high molecular weight liquid, non-migrating, non-functional polyether polyurethane plasticizers, and to the resultant polyurethane products of this process.