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. 19, 2017
Filed:
Jun. 17, 2015
Nissan Chemical Industries, Ltd., Tokyo, JP;
Kenji Takase, Toyama, JP;
NISSAN CHEMICAL INDUSTRIES, LTD., Tokyo, JP;
Abstract
A method of producing a silane compound having a Formula (1) sulfonyl bond includes reacting a Formula (I) chlorosulfonyl compound with sodium sulfite in water as a solvent in the presence of a base, to produce a Formula (II) sulfinic acid sodium salt: and adding an aromatic hydrocarbon solvent to carry out azeotropic dehydration, and adding an aprotic polar solvent and a Formula (III) chloroalkylsilane compound. (wherein R, R, R, R, and Rare each independently a substituent selected from a hydrogen atom, halogen atom, alkyl group, alkoxy group, haloalkyl group, haloalkoxy group, cyano group, and nitro group, Rand Ror Rmay form —CH═CH—CH═CH —together, Rand Rare each independently a Calkyl group, L is a single bond or saturated or unsaturated divalent Chydrocarbon group having a linear, branched, cyclic structure, or a combination thereof, and q is an integer of 1 to 3).