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, 1986
Filed:
Aug. 09, 1985
Karl Huhn, Burghausen, DE;
Rudolf Kaufmann, Burghausen, DE;
Wacker-Chemie GmbH, Munich, DE;
Abstract
Novel organopolysiloxanes are described in which the organopolysiloxanes are terminated by units of the formula R.sub.3 SiO.sub.1/2 and comprise units of the formulas RR.sup.1 SiO, RR.sup.2 SiO, RR.sup.3 SiO, RHSiO and R.sub.2 SiO, where R represents the same or different alkyl radicals having from 1 to 4 carbon atoms per radical, or phenyl radicals, R.sup.1 represents the same or different alkyl radicals having at least 6 carbon atoms per radical, R.sup.2 represents the same or different aralkyl radicals and R.sup.3 represents the same or different, SiC-bonded, monovalent organic radicals having at least one vicinal epoxy group per radical. These organopolysiloxanes are preferably prepared by reacting organopolysiloxanes which contain units of the formulas R.sub.3 SiO.sub.1/2 and RHSiO and optionally units of the formula R.sub.2 SiO, wherein R is the same as above, with an organic compound that has a terminal C.dbd.C-bond and at least one vicinal epoxy group per molecule, at least one alkene having at least 6 carbon atoms per molecule, and at least one aralkene in the presence of a catalyst which promotes the addition of Si-bonded hydrogen to the aliphatic C.dbd.C bond. These organopolysiloxanes may be applied simultaneously with a polymer having perfluoroalkyl groups with at least 3 carbon atoms per alkyl group to fibers to render them oil and water repellent.