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:
Sep. 10, 2013
Filed:
Sep. 01, 2010
Andre Buijs, Amsterdam, NL;
Paulus Jacobus Fennis, Amsterdam, NL;
Willem Karzijn, Amsterdam, NL;
Nico Maria Venne, Rotterdam, NL;
Andre Buijs, Amsterdam, NL;
Paulus Jacobus Fennis, Amsterdam, NL;
Willem Karzijn, Amsterdam, NL;
Nico Maria Venne, Rotterdam, NL;
Shell Oil Company, Houston, TX (US);
Abstract
The invention relates to a process for preparing a polymer polyol, comprising mixing in a reactor vessel, a base polyol, one or more ethylenically unsaturated monomers, a polymerization initiator, optionally a macromer, and optionally a chain transfer agent, and polymerizing the mixture thus obtained at a temperature of 50 to 200° C., wherein after discharging the reactor vessel content, the interior surface of the reactor vessel walls and/or any internals present in the reactor vessel are blasted with round media.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile