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. 25, 2008
Filed:
May. 14, 2004
John V. Sherman, Canton, MI (US);
Ludwig Voelkel, Limburgerhof, DE;
Marc Walter, Frankenthal, DE;
Christian Wulff, Mannheim, DE;
Michael Stoesser, Neuhofen, DE;
Siegbert Brand, Speyer, DE;
John V. Sherman, Canton, MI (US);
Ludwig Voelkel, Limburgerhof, DE;
Marc Walter, Frankenthal, DE;
Christian Wulff, Mannheim, DE;
Michael Stoesser, Neuhofen, DE;
Siegbert Brand, Speyer, DE;
BASF Aktiengesellschaft, Ludwigshafen, DE;
Abstract
The invention relates to a method of reducing the inhalation toxicity of functional fluids by incorporating into a functional fluid an effective amount of copolymer which is obtainable by copolymerizing etheylene oxide, propylene oxide and/or butylenes oxide with an initiator monool or diol, said copolymer having a degree of unsaturation of less than about 0.01 meq/g.