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. 20, 2007
Filed:
Feb. 04, 2003
Applicant:
Mathias Mehrer, Gablingen, DE;
Inventor:
Mathias Mehrer, Gablingen, DE;
Assignee:
Clariant Produkte (Deutschland) GmbH, Sulzbach, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K 5/35 (2006.01); C09K 15/16 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention describes a process for preparing a synergistic stabilizer mixture comprising the components of the general formulae (I), (II) and (III) in accordance with claim, characterized by the reaction of compounds of the formula (V) with an epihalohydrin of the formula (VI) in the presence of a phase transfer catalyst and from 4 to 20 times the molar amount of an alkali metal hydroxide, relative to compound (V), at from 20 to 220° C. Removal of the excess epihalohydrin and phase separation are followed by polymerization at from 100 to 240° C.