An object of the present invention is to provide a process that enables isocyanate to be produced stably over a long period of time and at high yield without encountering problems of the prior art during production of isocyanate without using phosgene. The present invention discloses a process for producing an isocyanate by subjecting a carbamic acid ester to a thermal decomposition reaction, including the steps of: recovering a low boiling point component in a form of a gaseous phase component from a thermal decomposition reaction vessel in which the thermal decomposition reaction is carried out; recovering a liquid phase component containing a carbamic acid ester from a bottom of the thermal decomposition reaction vessel; and supplying all or a portion of the liquid phase component to an upper portion of the thermal decomposition reaction vessel.
Surface-Treating Agents, Surface-Treated Powders, And Cosmetics Comprising The Same
申请人:Nishihama Shuji
公开号:US20080081029A1
公开(公告)日:2008-04-03
To provide surface-treating agents that can provide excellent hydrophobicity to powder and can improve its rinsability, to provide surface-treated powders that are treated with the surface-treating agent, and to provide cosmetics that comprise the surface-treated powder. A surface-treating agent consisting of a polymer which comprises a monomer (A) represented by the general formula (1) described below as a constituent monomer.
(wherein R
1
represents a hydrogen atom or an alkyl group having 1 to 3 carbon atoms, R
2
represents an alkylene group having 4 to 22 carbon atoms, X
1
represents an —NH— group or an oxygen atom, and M
1
represents a hydrogen atom or a monovalent inorganic or organic cation.)
DIBENZORYLENETETRACARBOXIMIDES AS INFRARED ABSORBERS
申请人:Koenemann Martin
公开号:US20100048904A1
公开(公告)日:2010-02-25
Dibenzorylenetetracarboximides of the general formula I
in which the variables are each defined as follows:
R′ are identical or different radicals:
hydrogen; optionally substituted aryloxy, arylthio, hetaryloxy or hetarylthio;
R are identical or different radicals:
hydrogen; optionally substituted C
1
-C
30
-alkyl, C
3
-C
8
-cycloalkyl, aryl or hetaryl;
m, n are each independently 0 or 1.
LIQUID CRYSTALLINE RYLENE TETRACARBOXYLIC ACID DERIVATIVES AND USE THEREOF
申请人:Koenemann Martin
公开号:US20110042651A1
公开(公告)日:2011-02-24
The present invention relates to liquid-crystalline rylenetetracarboxylic acid derivatives, to processes for their preparation and to their use as n-type organic semiconductors for producing organic field-effect transistors and solar cells.
Microbiological oxidation of long-chain aliphatic compounds. Part III. 1-Halogenoalkanes, 1-cyanohexadecane, and 1-alkoxyalkanes
作者:D. F. Jones、R. Howe
DOI:10.1039/j39680002816
日期:——
glucose, the yeast Torulopsis gropengiesseri effects the following transformations: (a) long-chain 1-halogenoalkanes to αω-alkanedioic acids; (b) 1-cyanohexadecane to the cyanohydrin derivative of 16-oxohexadecanoic acid; (c) long-chain 1-methoxyalkanes and 1-ethoxyalkanes to ω-hydroxyalkanoic acids; (d) long-chain 1-propoxyalkanes to ω- and ω-1-hydroxyalkoxyalkanoic acids. The transformation products