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:
Jul. 25, 1995
Filed:
Sep. 08, 1994
Korea Institute of Science and Technology, Seoul, KR;
Abstract
The present invention relates to novel cyclic or linear allylpolysiloxane type silicone fluids having allylalkylsiloxy and diorganosiloxy groups as represented by the formula I and their preparation methods by hydrolyzing mixtures of allyldichlorosilane and diorganodichlorosilane as represented by the formula II and formula III respectively. ##STR1## wherein R is selected from the group consisting of hydrogen alkyl(C.sub.3 -C.sub.20), chloroalkyl, cyanoalkyl, fluoroalkyl, and phenylalkyl group; R.sup.x and R.sup.2 represent independentlhydrogen, methyl or phenyl group; M represents H or SiMe.sub.3 group wherein Me is methyl group and when M is hydrogen, the silanol groups at the both ends of the molecule easily undergo dehydration and cyclize to form the cyclic silicone fluids as represented by the following formula I'; the mixing ratio (x/y) of the compounds as represented in formula I and formula HI respectively can be 1:0.01-1:100; CH.sub.2 CH.sub.2 R.sup.3 of formula II equals to R of formula I or I'. ##STR2##