Tin hydride reduction of omega-iodo-polyoxaalkyl acrylates 1 using syringe pump addition of both reactants to a solution of AIBN in benzene at 80 degrees C afforded the corresponding cyclic polyethers in excellent yields.
The invention relates to microcapsules, the capsule walls of which comprise a resin that can be obtained by reacting a) at least one compound selected from the group consisting of a1) amines and a2) aromatic or heteroaromatic compounds which are unsubstituted or substituted with one or more substituents from the group consisting of C
1
-C
20
-alkyl, OH, OR, COOH, SH, SR, NHCOR, OCOR, halogen, or an aromatic compound, where R is a C
1
-C
10
-alkyl group, with b) at least one aldehydic component that contains at least two carbons atoms per molecule, in the presence of c) at least one copolymer which contains units of 2-acrylamido-2-methylpropane sulphonic acid or salts (AMPS) thereof and/or 2-acrylamido-2-methylpropane phosphonic acid or salts (AMPP) thereof and units of one or more (meth)acrylates.
High nitrile, resinous coatings with excellent impact resistance, excellent barrier properties and low film-forming temperatures are prepared from (1) olefinically unsaturated nitrile monomers, (2) acrylate ester monomers, (3) a monomer containing at least two carbon double bonds and (4) a rubbery polymer of a conjugated diene and an optional comonomer.
A continuous process for preparation of highly rigid propylene-ethylene block copolymers
申请人:CHISSO CORPORATION
公开号:EP0739917A1
公开(公告)日:1996-10-30
A continuous process for preparation of propylene-ethylene block copolymer suitable for moldings with high rigidity and high impact resistance are provided, which process is a continuous process for preparation of highly rigid propylene-ethylene block copolymers, wherein propylene and ethylene are polymerized in the specified 2 steps with use of a catalyst system comprising (A) a solid catalyst component containing Ti, Mg, halogen and polyvalent carboxylic ester, (B) an organic aluminium compound, as well as (C) an organic silicon compound expressed by the general formula R4xR5ySi(OR6)z (wherein, x+y+z=4), and wherein the ratio between the maximum value and the minimum value of MFR(1)) is0.1 ≦ Log(MFR(h)/MFR(l)) ≦ 1, and the ratio between the average MFR(i) and MFR(ii) in the subsequent polymerization procedure (II) containing ethylene in a relatively large amount which is carried out by adding the glycol type compound is3 ≦ Log(MFR(i)/MFR(ii)) ≦ 7.
The product having less fish eye and high impact resistant value was obtained from the copolymer according to the invention.
A biological substance absorption preventing coating composition, an article coated therewith and a method of using the same
申请人:JSR Corporation
公开号:EP1655354A2
公开(公告)日:2006-05-10
A biological substance related article includes a coating formed by causing a biological substance adsorption preventive coating composition to come in contact with a surface of the biological substance related article and heating the composition, the biological substance adsorption preventive coating composition including: (A) a copolymer obtained by copolymcrizing raw material monomers including a monomer A1 shown by the following general formula (1) and an active hydrogen group-containing monomer A2; (B) a crosslinking agent reactive with an active hydrogen group; and (C) a solvent.
CH2=CR3COOR1OR2 (1)
(R1 represents an alkylene group having 1 to 4 carbon atoms, R2 represents an alkyl group having 1 to 4 carbon atoms, and R3 represents a hydrogen atom or a methyl group)
Polyurethane polymer having bisphenol group and photoimageable composition containing the same
申请人:Eternal Chemical Co., Ltd.
公开号:EP1840146A1
公开(公告)日:2007-10-03
The present invention provides a polymer having the structure of formula (I)
wherein n, R1, R2, R3, R4, R5, R6, a, b and c are as defined in the specification. The present invention also provides a negative-acting photoimageable composition comprising the above-mentioned polymer of formula (I), which is suitable for the fabrication of printed circuit boards.
本发明提供了一种具有式 (I) 结构的聚合物
其中 n、R1、R2、R3、R4、R5、R6、a、b 和 c 如说明书中所定义。本发明还提供了一种包含上述式(I)聚合物的可负作用光成像组合物,该组合物适用于印刷电路板的制造。