Vinyl halide resin compositions containing antimony-based stabilizer compositions, such stabilizer compositions and processes of production thereof
申请人:Nuodex Inc.
公开号:EP0039159A1
公开(公告)日:1981-11-04
Shelf-stable liquid antimony-based stabilizer compositions for incorporation into vinyl halide resin compositions comprise a liquid organic antimony sulphur- and/or oxygen-containing compound, such as antimony tris-(isooctyl thioglycolate), and a stabilizing amount of an acidic organic compound which may be a mercapto-acid ester, mercaptan, mercaptoacid, mercaptoalcohol, monocarboxylic acid or a mixture thereof. Processes of production of such antimony-based stabilizer compositions and vinyl halide resin compositions containing them are also described.
The uracil compounds represented by the formula [V]:
wherein R1 represents C1-C5 perfluoroalkyl group and Q represents an aromatic group,
can be produced by making the amide compounds represented by the formula [II]:
wherein R1 and Q have the same meanings defined above, or its hydrate react with a cyanate salt in the presence of a protonic acid.
申请人:National University Corporation
Hokkaido University
公开号:EP2060594A2
公开(公告)日:2009-05-20
Problem to be solved: To provide a method for producing a polymer having a desired composition in a high-yield, immediate and easy manner by continuously producing and reproducing acetyl-CoA without using a purified enzyme or expensive ATP.
Solution: A method for producing a polymer includes a chemical thioester exchange reaction for forming an acetyl-CoA by reacting an acetyl-thioester with CoA, a monomer-producing reaction for forming a (monomer precursor)-CoA derivative by reacting at least one monomer precursor compound with the acetyl-CoA and a polymerization reaction for forming the polymer compriseing units of the monomer by polymerizing the (monomer precursor)-CoA derivative.
有待解决的问题提供一种不使用纯化酶或昂贵的 ATP,通过连续生产和复制乙酰-CoA,高产、快速、简便地生产具有所需成分的聚合物的方法。
解决方案一种生产聚合物的方法包括:通过乙酰硫酯与 CoA 反应形成乙酰-CoA 的硫酯交换化学反应;通过至少一种单体前体化合物与乙酰-CoA 反应形成(单体前体)-CoA 衍生物的单体生成反应;以及通过聚合(单体前体)-CoA 衍生物形成由单体单元组成的聚合物的聚合反应。
Latex bonded textile fiber structure for construction applications
申请人:Synthomer Deutschland GmbH
公开号:US10836876B2
公开(公告)日:2020-11-17
The present invention relates to a textile fiber structure comprising man-made fibers fortified by a binder comprising a polymer latex obtained from the emulsion polymerization in aqueous medium of a mixture of ethylenically unsaturated monomers comprising:
(a) an aliphatic conjugated diene
(b) a vinyl aromatic compound;
(c) an ethylenically unsaturated silane bearing at least one silicon bonded hydrolysable group, and
(d) an ethylenically unsaturated acid
and to its use in construction applications, and to the use of the above binder to fortify textile fiber structures.
Curable polymer latex compositions for the manufacture of rubber articles
申请人:Synthomer Sdn. Bhd.
公开号:US11230621B2
公开(公告)日:2022-01-25
A curable polymer latex composition obtainable by:
(a) subjecting a monomer mixture comprising
i. at least one conjugated diene;
ii. at least one ethylenically unsaturated nitrile;
iii. optionally at least one ethylenically unsaturated acid;
iv. optionally at least one further ethylenically unsaturated compound different from any of the compounds (i)-(iii);
to free-radical emulsion polymerization in an aqueous reaction medium to form a raw polymer latex; and
(b) allowing the obtained raw latex to mature in the presence of at least one thiocarbonyl-functional compound, wherein the at least one thiocarbonyl-functional compound is present in an amount of at least 0.05 wt.-%, based on the total amount of monomers subjected to free-radical emulsion polymerization in step (a), and
(c) optionally compounding the matured polymer latex with one or more cross-linking agent. Methods for making such curable polymer latex composition or rubber articles made therefrom, respectively.
一种可固化聚合物胶乳组合物,可通过以下方法获得
(a) 将包含以下成分的单体混合物
i. 至少一种共轭二烯
至少一种乙烯基不饱和腈; iii;
iii. 可选的至少一种乙烯基不饱和酸
iv. 可选的至少一种不同于化合物 (i)-(iii) 的乙烯基不饱和化合物;
在水性反应介质中进行自由基乳液聚合,形成聚合物胶乳原料;和
(b) 使得到的生胶乳在至少一种硫代羰基官能团化合物存在下成熟,其中至少一种硫代羰基官能团化合物的存在量为步骤(a)中进行自由基乳液聚合的单体总量的至少 0.05 wt.-%,和
(c) 可选地将成熟的聚合物胶乳与一种或多种交联剂复合。分别制造这种可固化聚合物胶乳组合物或由其制成的橡胶制品的方法。