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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.:

US 5792876 B1

PDFFull Text
Date of Patent:
Aug. 11, 1998

Filed:

Nov. 06, 1996

Process for producing acetals

Applicant:
Inventors:

Hideharu Iwasaki, Hasaki-machi, JP;

Masahiko Kitayama, Hasaki-machi, JP;

Takashi Onishi, Hasaki-machi, JP;

Assignee:

Kuraray Co., Ltd., Kurashiki, JP;

Attorney:

Oblon, Spivak, McClelland, Maier & Neustadt, P.C.

Primary Examiner:

C Warren Ivy

Assistant Examiner:

Raymond Covington

Int. Cl.
CPC ...
C07C / ; C07C / ; C07C / ; C07C / ;
U.S. Cl.
CPC ...
549347 ; 544352 ; 544357 ; 544367 ; 544369 ; 544430 ; 560 56 ; 560 57 ; 560 63 ; 560 64 ; 560 65 ; 560 81 ; 560100 ; 560102 ; 560116 ; 560118 ; 560180 ; 560182 ; 560183 ; 560184 ; 560186 ; 560187 ; 562467 ; 562473 ; 562474 ; 562475 ; 562498 ; 562508 ; 562579 ; 562580 ; 562586 ; 562587 ; 568561 ; 568542 ; 568544 ; 568715 ; 568807 ; 568808 ; 568809 ; 568811 ; 568816 ; 568822 ; 568841 ; 568852 ;
Abstract

A process is described for producing acetals comprising reacting an aldehyde or a ketone with an alcohol in the presence of a titanium compound having an acetylacetone as a ligand, or in the presence of a compound selected from the group consisting of stannous chloride dihydrate, cerium chloride hexahydrate and bismuth chloride. The process can be used in the synthesis of unstable acetals or when water exists in the reaction mixture, and therefore the process can be used for a wide variety of applications.

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Iwasaki, Hideharu. (1998). Process for producing acetals (U.S. Patent No. 5792876). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5792876

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