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Patent Watch--January 12, 2009

The following record is from the CAplus^SM database

CAPLUS COPYRIGHT 2009 ACS

PATENT NUMBER:	WO 2008156205
TITLE:	Method for producing propylene oxide
INVENTOR(S):	Abekawa, Hiroaki; Kawabata, Tomonori; Yako, Makoto
PATENT ASSIGNEE(S):	Sumitomo Chemical Company, Limited, Japan
SOURCE:	PCT Int. Appl., 32pp. CODEN: PIXXD2
LANGUAGE:	English

ABSTRACT: There is disclosed a method for producing propylene oxide, which includes: reacting propylene, oxygen, and hydrogen in the presence of a noble metal catalyst and a titanosilicate catalyst in a liq. phase contg. a polycyclic compd., which is unsubstituted or substituted with at least one substituent selected from Group B below, wherein the polycyclic compd. is composed of two or more identical or different ring compds. selected from Group A below and the ring compds. are fused, directly bonded, or bonded by a linkage group selected from the group consisting of an oxygen atom, carbon chain, and a group composed of oxygen atom(s) and a carbon chain, provided that said polycyclic compd. is not a polycyclic compd. having hydroxy groups or oxo groups at para or. ortho positions. Group A consisting of benzene, cyclopentadiene, cycloheptatriene, furane, pyrane, cyclopentene, cyclopentane, cyclohexane, cyclohexene, cyclohexadiene, cycloheptane, cycloheptene, and cycloheptadiene. Group B consisting of halogen atom, alkyl group, alkenyl group, alkoxy group, hydroxyalkyl group, acyl group, oxo group, hydroxy group, and cyano group.