1,2-epoxyeicosan-3-ol | 79238-38-3

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 脂肪酰基
• 英文名称: 1,2-epoxyeicosan-3-ol
• 英文别名: 1-(Oxiran-2-yl)octadecan-1-ol
• CAS: 79238-38-3
• 化学式: C₂₀H₄₀O₂
• 分子量: 312.536
• InChiKey: DVYDSWQTVZIYEI-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  8.1
• 重原子数：
  22
• 可旋转键数：
  17
• 环数：
  1.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  32.8
• 氢给体数：
  1
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  1,2-epoxyeicosan-3-ol 在 双(乙腈)氯化钯(II) 、 air 、 copper dichloride 作用下， 以 二氯甲烷 为溶剂， 反应 15.0h， 以89%的产率得到1-chloroeicosan-2,3-diol
  参考文献：
  名称：

  Palladium- and light-enhanced ring-opening of oxiranes by copper chloride

  摘要：

  The yields of chlorohydrins formed by cleavage of epoxides by CuCl2 is increased in the presence of small amounts of PdCl2(MeCN)2. The conversion drops dramatically on carrying out the reaction in the dark. The regiochemistry of the ring-opening is sensitive to the nature of the substituents.

  DOI：

  10.1016/0022-328x(92)80158-t
• 作为产物：
  描述：

  eicos-1-en-3-ol 在 间氯过氧苯甲酸 作用下， 以 二氯甲烷 为溶剂， 以87%的产率得到1,2-epoxyeicosan-3-ol
  参考文献：
  名称：

  Palladium- and light-enhanced ring-opening of oxiranes by copper chloride

  摘要：

  The yields of chlorohydrins formed by cleavage of epoxides by CuCl2 is increased in the presence of small amounts of PdCl2(MeCN)2. The conversion drops dramatically on carrying out the reaction in the dark. The regiochemistry of the ring-opening is sensitive to the nature of the substituents.

  DOI：

  10.1016/0022-328x(92)80158-t

文献信息

• Decoration transfer material, method of decorating a substrate using such a transfer material, and printing ink therefor
  申请人：Decor Innovations Limited

  公开号：EP0018708A1

  公开（公告）日：1980-11-12

  Material for decorating textile fabrics under the action of heat and pressure comprises a flexible substrate having thereon a transferable layer which comprises a dye or pigment, a film-forming polymer, a crosslinking agent capable on curing of rendering the film-forming polymer insoluble and a thermally activatable catalyst for promoting the crosslinking reaction, the catalyst comprising the salt of one or more strong acid groups with an organic amine and a salt of one or more weak acid groups with an organic amine. A method of decorating a substrate and a printing ink used in the preparation of decoration materials.

  用于在热和压力作用下装饰纺织织物的材料包括柔性基材，基材上有可转移层，可转移层包括染料或颜料、成膜聚合物、固化时能使成膜聚合物不溶解的交联剂和促进交联反应的热活化催化剂，催化剂包括一个或多个强酸基团与有机胺的盐和一个或多个弱酸基团与有机胺的盐。一种装饰基材的方法和一种用于制备装饰材料的印刷油墨。
• METHOD OF PRODUCING POROUS BODY
  申请人：DIC Corporation

  公开号：EP3467014A1

  公开（公告）日：2019-04-10

  A task to be achieved by the present invention is to produce a porous body having vertically long cells using an aqueous urethane resin composition. The present invention provides a method for producing a porous body, comprising: incorporating, into an aqueous urethane resin composition containing an aqueous urethane resin (A) having an acid value of 0.01 mg KOH/g or more, a thickening agent (B) having a carboxyl group and having an oxyethylene group content of 2 × 10-2 mol/g or less in an amount in the range of from 0.01 to 30 parts by mass, relative to 100 parts by mass of the aqueous urethane resin (A), to thicken the composition; and then coagulating the thickened composition using a coagulant (C) containing a metal salt (c-1). By the method of the invention, a porous body having vertically long cells can be produced using an aqueous urethane resin composition. The obtained porous body has excellent texture, elastic force, peel strength, and water vapor permeability, as compared to a porous body of a closed-cell type.

  本发明要完成的一项任务是使用水性聚氨酯树脂组合物生产具有垂直长单元的多孔体。本发明提供了一种生产多孔体的方法，包括：在含有酸值为 0.01 毫克 KOH/g 或更高的水性聚氨酯树脂 (A) 的水性聚氨酯树脂组合物中，加入具有羧基且氧乙烯基含量为 2 × 10-2 摩尔/克或更低的增稠剂 (B)，其用量范围为 0.01至30质量份（相对于100质量份）的水性聚氨酯树脂（A），以增稠该组合物；然后使用含有金属盐（c-1）的凝结剂（C）凝结增稠后的组合物。通过本发明的方法，可以使用水性聚氨酯树脂组合物生产出具有垂直长细胞的多孔体。与闭孔类型的多孔体相比，所获得的多孔体具有优异的质地、弹性力、剥离强度和水蒸气渗透性。
• METHOD FOR MANUFACTURING GLOVES
  申请人：DIC Corporation

  公开号：EP3666101A1

  公开（公告）日：2020-06-17

  The present invention provides a method for manufacturing gloves, including adding a thickening agent (B) having an oxyethylene group content of 2×10-2 mol/g or less to an aqueous urethane resin composition containing an aqueous urethane resin (A) having an acid value of 0.01 mgKOH/g or higher in a range of 0.01 to 30 parts by mass relative to 100 parts by mass of the aqueous urethane resin (A) to obtain a thickened liquid; and (i) immersing fiber-knitted gloves in the thickened liquid and subsequently performing coagulation in a coagulation bath (C) containing a metal salt (c-1) or (ii) immersing fiber-knitted gloves previously immersed in a coagulation bath (C) containing a metal salt (c-1) in the thickened liquid to perform coagulation. As the thickening agent (B), it is preferable to use one or more kinds of thickening agent that is selected from the group consisting of a cellulose thickening agent, an acryl thickening agent, and a urethane thickening agent. Furthermore, as the metal salt (c-1), it is preferable to use calcium nitrate.

  本发明提供了一种制造手套的方法，包括将氧乙烯基含量为 2×10-2 mol/g 或更少 的增稠剂 (B) 加入到水性聚氨酯树脂组合物中，该组合物含有酸值为 0.01 mgKOH/g 或更高的水性聚氨酯树脂 (A)，相对于 100 份水性聚氨酯树脂 (A) 的质量，增稠剂 (B) 的质量为 0.将纤维编织手套浸入增稠液体中，然后在含有金属盐 (c-1) 的凝固浴 (C) 中进行凝固，或 (ii) 将先前浸入含有金属盐 (c-1) 的凝固浴 (C) 中的纤维编织手套浸入增稠液体中进行凝固。作为增稠剂 (B)，最好使用一种或多种增稠剂，这些增稠剂选自纤维素增稠剂、丙烯酸增稠剂和聚氨酯增稠剂组成的组。此外，作为金属盐（c-1），最好使用硝酸钙。
• Method for manufacturing synthetic leather
  申请人：DIC Corporation

  公开号：US11001963B2

  公开（公告）日：2021-05-11

  The present invention is to provide a method for manufacturing synthetic leather in which, after obtaining a thickened liquid by adding a thickening agent (B) with an oxyethylene group content of 2×10−2 mol/g or less to an aqueous urethane resin composition containing an aqueous urethane resin (A) having an acid value of 0.01 mgKOH/g or higher in a range of 0.01 to 30 parts by mass relative to 100 parts by mass of the aqueous urethane resin (A), the thickened liquid is coated on a base and coagulated with a coagulating agent (C) containing a metal salt (c-1). As the thickening agent, it is preferable to use one or more kinds of thickening agent that is selected from the group consisting of a cellulose thickening agent, an acryl thickening agent, and a urethane thickening agent. Furthermore, as the metal salt (c-1), calcium nitrate is preferable.

  本发明旨在提供一种制造合成皮革的方法，在该方法中，通过向含有水性氨基甲酸乙酯树脂（A）的水性氨基甲酸乙酯树脂组合物中添加氧乙烯基含量为 2×10-2 mol/g 或更低的增稠剂（B）而获得增稠液体后，将增稠液体涂覆在酸值为 0.01 mgKOH/g 或更高，相对于 100 质量份的水性聚氨酯树脂 (A) 的质量份数为 0.01 至 30，将增稠液体涂覆在基底上，并用含有金属盐 (c-1) 的凝固剂 (C) 进行凝固。作为增稠剂，最好使用纤维素增稠剂、丙烯酸增稠剂和聚氨酯增稠剂中的一种或多种增稠剂。此外，作为金属盐（c-1），最好使用硝酸钙。
• Blowing catalyst compositions containing hydroxyl and surface active groups for the production of polyurethane foams
  申请人：Air Products and Chemicals, Inc.

  公开号：EP1702913B1

  公开（公告）日：2009-05-13