2-Mercaptoisophthalsaeure | 67242-06-2

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: 2-Mercaptoisophthalsaeure
• 英文别名: Carboxy mercaptobenzoic acid；2-sulfanylbenzene-1,3-dicarboxylic acid
• CAS: 67242-06-2
• 化学式: C₈H₆O₄S
• 分子量: 198.199
• InChiKey: QRKINFKUIIOUTP-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.1
• 重原子数：
  13
• 可旋转键数：
  2
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  75.6
• 氢给体数：
  3
• 氢受体数：
  5

文献信息

• Organic thiol metal-free stabilizers and plasticizers for halogen-containing polymers
  申请人：Starnes Herbert William

  公开号：US20050049307A1

  公开（公告）日：2005-03-03

  Organic thiol compounds based on pentaerythritol and dipentaerythritol are described herein. More specifically, the compounds of the present invention are mixed esters of pentaerythritol and dipentaerythritol having at least one sulfhydryl group and preferably a plurality of sulfhydryl groups as well as at least one non-thiol-containing group. The organic thiol compounds are utilized to plasticize and/or heat stabilize halogen-containing polymer compositions especially poly(vinyl chloride) compositions. The compositions are substantially free or free of metal-based stabilizers, Lewis acids and terpenes. The compounds of the present invention are ideally utilized in polymers normally susceptible to deterioration and color change which can occur during processing of the polymer or exposure of the polymer to certain environments and surprisingly also serve as excellent plasticizers.

  本文描述了基于对羟基甲苯和二对羟基甲苯的有机硫醇化合物。更具体地说，本发明的化合物是对羟基甲苯和二对羟基甲苯的混合酯，具有至少一个巯基和最好是多个巯基，以及至少一个非巯基含有基团。这些有机硫醇化合物被用于增塑和/或热稳定含卤素聚合物组合物，特别是聚氯乙烯组合物。这些组合物基本上不含或不含金属基稳定剂、路易斯酸和萜类物质。本发明的化合物在通常容易恶化和变色的聚合物中得到理想应用，这种恶化和变色可能发生在聚合物加工过程中或聚合物暴露于某些环境中，并且令人惊讶地还可作为优秀的增塑剂。
• Process for the preparation of a low molecular weight acrylate copolymer, and a liquid coating composition having a high solids content based on the acrylate copolymer thus obtained
  申请人：AKZO N.V.

  公开号：EP0000601A1

  公开（公告）日：1979-02-07

  The invention relates to a process for the preparation of an acrylate copolymer having a number average molecular weight of 400-2000 by polymerization of a monomer mixture consisting of 35-60 mole % of styrene and/or a-methyl styrene, 20-60 mole % of acrylic acid and/or methacrylic acid and 0-30 mole % of one or more other monovinyl compounds in the presence of a 2 to 8 carbon atoms-containing mercaptomonocarboxylic acid or mercaptodicarboxylic acid as chain length regulator in an amount of 0.05 to 0.2 moles per mole of the monomeric compounds, after which the resulting reaction product is brought into reaction with a glycidyl ester of a monocarboxylic acid. The invention also relates to a liquid coating composition having a solids content of at least 60% by weight based on the acrylate copolymer thus prepared and a curing agent.

  本发明涉及一种丙烯酸酯共聚物的制备工艺，该共聚物的平均分子量为 400-2000，其制备方法是：在含 2 至 8 个碳原子的巯基单羧酸或巯基二羧酸作为链长调节剂的存在下，聚合由 35-60 摩尔%的苯乙烯和/或 a-甲基苯乙烯、20-60 摩尔%的丙烯酸和/或甲基丙烯酸以及 0-30 摩尔%的一种或多种其它单乙烯基化合物组成的单体混合物，每摩尔单体化合物中巯基单羧酸或巯基二羧酸的用量为 0.05 至 0.2 摩尔。05至0.2摩尔/摩尔的单体化合物，然后将所得反应产物与单羧酸的缩水甘油酯反应。本发明还涉及一种液体涂料组合物，以由此制备的丙烯酸酯共聚物和固化剂为基础，固体含量至少为 60%（按重量计）。
• Stable emulsion polymers and methods of preparing same
  申请人：S.C. JOHNSON & SON, INC.

  公开号：EP0338486A2

  公开（公告）日：1989-10-25

  The present invention provides for a process for producing a stabilized latex characterized by the steps of: a) mixing latex forming monomers, under emulsion polymerization conditions to form a hydrophilic, low molecular weight, first stage polymer reaction mixture capable of becoming water soluble upon pH adjustment; b) contacting said reaction mixture containing the first stage polymer with latex forming monomers under emulsion polymerization conditions sufficient to form a second stage hydrophobic polymer which forms an invert core-shell emulsion with said first stage polymers and c) adjusting the pH of the emulsion to dissolve the first stage polymer, as well as the latex produced thereby.

  本发明提供了一种生产稳定胶乳的工艺，其特征在于以下步骤： a) 在乳液聚合条件下混合胶乳形成单体，以形成亲水性、低分子量、第一阶段聚合物反应混合物，该混合物在 pH 值调整后可溶于水； b) 在乳液聚合条件下，将含有第一阶段聚合物的反应混合物与胶乳形成单体接触，足以形成第二阶段疏水性聚合物，该聚合物与所述第一阶段聚合物形成反向核壳乳液，以及 c) 调节乳液的 pH 值，以溶解第一级聚合物以及由此产生的胶乳。
• Coreactable powdered compositions
  申请人：UNION CARBIDE CHEMICALS AND PLASTICS COMPANY, INC.

  公开号：EP0420097A2

  公开（公告）日：1991-04-03

  Thermosettable, coreactable particulate powdereded compositions having particles comprising at least a first copolymer of an olefinically unsaturated monomer having at least one functional group and at least a second copolymer of an olefinically unsaturated monomer having at least one functional group which is reactive with the at least one functional group of the at least first copolymer are disclosed. Methods for making and using these compositions are also disclosed.

  本发明公开了可热沉、可核心反应的微粒粉末状组合物，其颗粒包含至少一种具有至少一个官能团的烯烃不饱和单体的第一种共聚物和至少一种具有至少一个官能团的烯烃不饱和单体的第二种共聚物，该第二种共聚物具有至少一个官能团，可与至少第一种共聚物的至少一个官能团反应。还公开了制造和使用这些组合物的方法。
• Aqueous polymer dispersions
  申请人：CRAY VALLEY LIMITED

  公开号：EP0728779A2

  公开（公告）日：1996-08-28

  An aqueous polymer dispersion containing polymer particles formed of at least three polymer domains and prepared by a multi-stage emulsion polymerization process, the polymer particles of the dispersion having a minimum film-forming temperature below 40°C and comprising domain of three addition polymers, namely polymer A having a glass transition temperature (TgA) of from -70°C to 0°C and forming from 5 to 70% by weight of the total polymer ; polymer B having a glass transition temperature (TgB) of from 1 to 40°C and forming from 5 to 70% by weight of the total polymer ; and polymer C having a glass transition temperature (TgC) of from 41 to 150°C and forming from 5 to 70% by weight of the total polymer, the total polymer representing 100%.

  一种含水聚合物分散体，其中含有由至少三个聚合物畴形成的聚合物颗粒，并通过多级乳液聚合工艺制备，该分散体的聚合物颗粒的最低成膜温度低于 40°C，并包含三个添加聚合物畴，即 聚合物 A 的玻璃化温度（TgA）为-70°C 至 0°C，占聚合物总重量的 5%至 70%； 聚合物 B 的玻璃化转变温度（TgB）为 1 至 40°C，占聚合物总重量的 5 至 70%；以及 聚合物 C 的玻璃化转变温度（TgC）为 41 至 150°C，占聚合物总重量的 5 至 70%、 聚合物总量占 100%。