Selective monoetherification and monoesterificatton of diols and diacids under phase-transfer conditions
作者:Jaime de la Zerda、Gabriela Barak、Yoel Sasson
DOI:10.1016/0040-4020(89)80151-6
日期:1989.1
Research on the selectivity of etherlfication reactions of diols and esterification reactions of diacids by alkyl halides underphase-transfer catalysis has shown that under such conditions, selectivity of monoetherification increases in the order prim < sec < tert diols, though overall yield of monoether decreases from sec to tert diols. Monoesterification of diacids was accomplished with a high degree
OLEFIN POLYMERIZATION CATALYST, PROCESS FOR PRODUCING OLEFIN POLYMER, POLYPROPYLENE RESIN COMPOSITION AND ARTICLE COMPRISING THE SAME
申请人:SUMITOMO CHEMICAL COMPANY, LIMITED
公开号:US20130109789A1
公开(公告)日:2013-05-02
An olefin polymerization catalyst is obtained by bringing the following components (A), (B) and (C) into contact with one another:
(A) a solid catalyst component for olefin polymerization containing a titanium atom, a magnesium atom and a halogen atom;
(B) an organoaluminum compound; and
(C) a triether represented by formula (I).
An olefin polymerization solid catalyst can be provided having a sufficiently high polymerization activity and an ability to produce an olefin polymer with a low content of low-molecular weight components and amorphous components.
Thermosensitive recording sheet set for preservation temperature control and method of using the sheet set
申请人:Oji Paper Co., Ltd.
公开号:EP0885745A1
公开(公告)日:1998-12-23
A sheet set for temperature control comprises: a recording sheet that is provided on one surface of a substrate and has a recording layer incorporating a zinc salt of a salicylic acid derivative as a color acceptor, or a leuco dye; and an adhesive sheet that is provided on one surface of another substrate and has a first adhesive layer incorporating an adhesive, an ester derivative of the formula (1) or (2), and a leuco dye, or a zinc salt of a salicylic acid derivative as a color acceptor.
Recording methods using electro-sensitive movable fluids, and recording apparatuses
申请人:Shinten Sangyo Co., Ltd.
公开号:EP0911164A2
公开(公告)日:1999-04-28
In the method of using an ink-jet recording ink composition and the recording apparatus according to the invention, by the application of a voltage between one or plural ink jet electrodes (16) and one or plural source electrodes (17) which are provided in the vicinity of bottom ends of the ink jet electrodes and are electrically insulated from the ink jet electrodes, an ink-jet recording ink composition comprising an electrosensitive movable fluid and a colorant dissolved or dispersed in the fluid is moved in the direction of the source electrodes to the ink jet electrodes and is jetted from tips of the ink jet electrodes. An ink attraction electrode may be further arranged in the present invention, whereby the ink composition jetted from the ink jet electrodes can be attracted by the ink attraction electrode and thereby more precise printing can be carried out. A gate electrode may be furthermore arranged between the ink attraction electrode and the ink jet electrode, whereby printing can be carried out with controlling the jet line of the ink composition.
VINYL CHLORIDE RESIN COMPOSITION, VINYL-CHLORIDE-RESIN MOULDED BODY, AND STACKED BODY
申请人:Zeon Corporation
公开号:EP3121227A1
公开(公告)日:2017-01-25
Provided is a vinyl chloride resin composition that can provide a molded product having superior flexibility at low temperatures. The vinyl chloride resin composition includes (a) a vinyl chloride resin and (b) a dodecanedioic acid diester. Moreover, (a) the vinyl chloride resin includes (x) a base vinyl chloride resin in an amount of from 70 mass% to 100 mass% and (y) vinyl chloride resin fine particles in an amount of from 0 mass% to 30 mass%.