2-isocyanatopentanedioic acid bis(2-isocyanatoethyl) ester | 19544-20-8

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: 2-isocyanatopentanedioic acid bis(2-isocyanatoethyl) ester
• 英文别名: bis(2-isocyanatoethyl)-2-isocyanatopentanedioate；bis(2-isocyanatoethyl) 2-isocyanatoglutarate；Bis(2-isocyanatoethyl)-2-isocyanatoglutarat；Bis(2-isocyanatoethyl) 2-isocyanatopentanedioate
• CAS: 19544-20-8
• 化学式: C₁₂H₁₃N₃O₇
• 分子量: 311.251
• InChiKey: ILQQWSOGZZJPDL-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.8
• 重原子数：
  22
• 可旋转键数：
  13
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.58
• 拓扑面积：
  141
• 氢给体数：
  0
• 氢受体数：
  10

反应信息

• 作为产物：
  描述：

  Bis[2-(phenoxycarbonylamino)ethyl] 2-(phenoxycarbonylamino)pentanedioate 在 DURANATE TPA-100 作用下， 以 邻二氯苯 为溶剂， 反应 200.0h， 以86%的产率得到2-isocyanatopentanedioic acid bis(2-isocyanatoethyl) ester
  参考文献：
  名称：

  ISOCYANATE PRODUCTION METHOD

  摘要：

  根据本发明的一种异氰酸酯生产方法是一种通过将氨基甲酸酯经受热分解而生产异氰酸酯的方法，包括：准备含有氨基甲酸酯、无活性溶剂和多异氰酸酯化合物的混合液的步骤；通过持续将混合液引入热分解反应器对氨基甲酸酯进行热分解反应的步骤；通过持续从反应器中以气态形式提取低沸点分解产物的步骤，所述低沸点分解产物的沸点低于多异氰酸酯化合物；通过从反应器中持续提取未在收集低沸点分解产物的步骤中以气态形式收集的液相组分的步骤来收集高沸点组分。

  公开号：

  US20200115327A1

文献信息

• ISOCYANATE PRODUCTION METHOD
  申请人：ASAHI KASEI KABUSHIKI KAISHA

  公开号：US20200115327A1

  公开（公告）日：2020-04-16

  An isocyanate production method according to the present invention is a method in which an isocyanate is produced by subjecting a carbamate to thermal decomposition, and includes: a step of preparing a mixture liquid containing the carbamate, an inactive solvent and a polyisocyanate compound; a step of conducting a thermal decomposition reaction of the carbamate by continuously introducing the mixture liquid into a thermal decomposition reactor; a step of collecting a low-boiling decomposition product by continuously extracting the low-boiling decomposition product in a gaseous state from the reactor, the low-boiling decomposition product having a boiling point lower than the polyisocyanate compound; and a step of collecting a high-boiling component by continuously extracting, from the reactor, a liquid phase component which is not collected in a gaseous state at the step of collecting the low-boiling decomposition product.

  根据本发明的一种异氰酸酯生产方法是一种通过将氨基甲酸酯经受热分解而生产异氰酸酯的方法，包括：准备含有氨基甲酸酯、无活性溶剂和多异氰酸酯化合物的混合液的步骤；通过持续将混合液引入热分解反应器对氨基甲酸酯进行热分解反应的步骤；通过持续从反应器中以气态形式提取低沸点分解产物的步骤，所述低沸点分解产物的沸点低于多异氰酸酯化合物；通过从反应器中持续提取未在收集低沸点分解产物的步骤中以气态形式收集的液相组分的步骤来收集高沸点组分。
• METHOD FOR PRODUCING CARBAMATE AND METHOD FOR PRODUCING ISOCYANATE
  申请人：ASAHI KASEI KABUSHIKI KAISHA

  公开号：US20210179548A1

  公开（公告）日：2021-06-17

  The present invention provides a method for producing a carbamate that includes a step (1) and a step (2) described below: (1) a step of producing a compound (A) having a urea linkage, using an organic primary amine having at least one primary amino group per molecule and at least one compound selected from among carbon dioxide and carbonic acid derivatives, at a temperature lower than the thermal dissociation temperature of the urea linkage; and (2) a step of reacting the compound (A) with a carbonate ester to produce a carbamate.

  本发明提供了一种生产碳酸酯的方法，包括以下步骤：(1)通过使用每个分子至少含有一个一次氨基团的有机初级胺和碳酸气体或碳酸衍生物中选择的至少一种化合物，在低于尿素键热解温度的温度下，生产具有尿素键的化合物(A)；以及(2)将化合物(A)与碳酸酯反应以生产碳酸酯。
• METHOD FOR FORMING MULTILAYER COATING FILM
  申请人：Nippon Paint Automotive Coatings Co., Ltd.

  公开号：EP3409378A1

  公开（公告）日：2018-12-05

  An object of the present invention is to provide a method for forming a multilayer coating film by which a multilayer coating film having excellent coating film performance can be formed even by low temperature curing. The present invention provides a method for forming a multilayer coating film including an intermediate coating film formation step of applying an aqueous intermediate coating composition to an object to be coated to form an uncured intermediate coating film; a base coating film formation step of applying an aqueous base coating composition onto the resulting uncured intermediate coating film to form an uncured base coating film; and a curing step of curing the resulting uncured intermediate coating film and the base coating film by heating; in which the aqueous intermediate coating composition is an aqueous intermediate coating composition containing an aqueous resin having a hydroxyl group and a carboxyl group (A1), a polyisocyanate compound (B), and a hydrophilicized-modified carbodiimide compound (C); the aqueous base coating composition is an aqueous base coating composition containing an aqueous resin having a hydroxyl group and a carboxyl group (A2), a hydrophilicized-modified carbodiimide compound (C), a water-dispersible blocked polyisocyanate compound (D), and an aqueous polyurethane resin (E).

  本发明的目的是提供一种形成多层涂膜的方法，通过该方法即使在低温固化下也能形成具有优异涂膜性能的多层涂膜。本发明提供了一种形成多层涂膜的方法，包括中间涂膜形成步骤：将水性中间涂膜组合物涂在待涂物体上，形成未固化的中间涂膜；基底涂膜形成步骤：将水性基底涂膜组合物涂在所形成的未固化的中间涂膜上，形成未固化的基底涂膜；以及固化步骤：通过加热固化所形成的未固化的中间涂膜和基底涂膜；其中，水性中间涂层组合物是一种水性中间涂层组合物，包含具有羟基和羧基的水性树脂 (A1)、多异氰酸酯化合物 (B) 和亲水改性碳二亚胺化合物 (C)；水性基底涂料组合物是一种水性基底涂料组合物，其中包含具有羟基和羧基的水性树脂 (A2)、亲水改性的碳化二亚胺化合物 (C)、水分散性封端多异氰酸酯化合物 (D) 和水性聚氨酯树脂 (E)。
• AQUEOUS COATING MATERIAL COMPOSITION AND COATING FILM FORMING METHOD
  申请人：Nippon Paint Automotive Coatings Co., Ltd.

  公开号：EP3399001A1

  公开（公告）日：2018-11-07

  The objective of the present invention is to provide an aqueous coating composition which has excellent curability at low temperatures. The present invention provides an aqueous coating composition which contains an aqueous resin having a hydroxyl group and a carboxyl group (A), a water-dispersible blocked polyisocyanate compound (B), a hydrophilicized carbodiimide compound (C), and an aqueous polyurethane resin (D), wherein the aqueous resin having a hydroxyl group and a carboxyl group (A) has a hydroxyl value of 80 to 200 mgKOH/g and an acid value of 10 to 40 mgKOH/g in terms of resin solid content, the aqueous polyurethane resin (D) has a glass transition point (Tg) of -50°C or less, and a cured film of the aqueous polyurethane resin (D) has an elongation at break of 400% or more at -20°C.

  本发明的目的是提供一种在低温下具有优异固化性的水性涂料组合物。本发明提供了一种水性涂料组合物，它包含具有羟基和羧基的水性树脂 (A)、水分散封端多异氰酸酯化合物 (B)、亲水性碳化二亚胺化合物 (C) 和水性聚氨酯树脂 (D)、其中，具有羟基和羧基的水性树脂 (A) 的羟值为 80 至 200 mgKOH/g，酸值为 10 至 40 mgKOH/g（以树脂固体含量计）；水性聚氨酯树脂 (D) 的玻璃化转变点 (Tg) 为 -50°C 或更低；水性聚氨酯树脂 (D) 固化薄膜在 -20°C 时的断裂伸长率为 400% 或更高。
• ISOCYANATE COMPOSITION, PRODUCTION METHOD FOR ISOCYANATE COMPOSITION, AND PRODUCTION METHOD FOR ISOCYANATE POLYMER
  申请人：ASAHI KASEI KABUSHIKI KAISHA

  公开号：EP3527593A1

  公开（公告）日：2019-08-21

  An isocyanate composition according to the present invention contains an isocyanate compound of formula (1) and/or (2) (wherein R1 represents a hydrogen or a monovalent organic group, and R2 represents a monovalent organic group), and, relative to the total mass of the isocyanate compound in the composition, 1.0 ppm by mass to 10% by mass of a compound of formula (3): R13-(COO-R14)a (wherein R13 represents an organic group with a valence of a, R14 represents a monovalent organic group, and a represents an integer of 1 or 2), which is different from the isocyanate compound, and/or, 1.0 ppm by mass to 10% by mass of a compound having an UV absorption in an area of decamer or higher isocyanates in a measurement spectrum of gel permeation chromatography.

  根据本发明的异氰酸酯组合物含有式(1)和/或(2)的异氰酸酯化合物(其中 R1 代表氢或一价有机基团，R2 代表一价有机基团)，以及相对于组合物中异氰酸酯化合物的总质量，1.0ppm(质量)至 10%(质量)的式(3)化合物：R13-(COO-R14)a（其中 R13 代表价数为 a 的有机基团，R14 代表一价有机基团，a 代表 1 或 2 的整数），该化合物与异氰酸酯化合物不同，和/或，在凝胶渗透色谱法的测量光谱中，在十聚体或更高异氰酸酯区域具有紫外吸收的化合物的质量百分比为 1.0 ppm 至 10%。