2-Hydroxy-3-(octadecanoyloxy)butanedioic acid | 23377-56-2

• 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-Hydroxy-3-(octadecanoyloxy)butanedioic acid
• 英文别名: 2-hydroxy-3-octadecanoyloxybutanedioic acid
• CAS: 23377-56-2
• 化学式: C₂₂H₄₀O₇
• 分子量: 416.5
• InChiKey: DNSJBQIYWNTMRC-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  7.1
• 重原子数：
  29
• 可旋转键数：
  21
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.86
• 拓扑面积：
  121
• 氢给体数：
  3
• 氢受体数：
  7

文献信息

• Suppository and composition comprising at least one polyethylene glycol
  申请人：Anestic ApS

  公开号：US20020048601A1

  公开（公告）日：2002-04-25

  There is provided a suppository comprising at least one biocompatible polymer, wherein the biocompatible polymer is essentially non-biodegradable, and wherein the suppository essentially does not swell when contacted with an aqueous fluid. The suppository may further comprise a plurality of open cells at least partly separated from one another by an interpenetrating matrix comprising at least one biocompatible polymer in branched or crosslinked form. The plurality of interlinked, open cells are capable of containing an aqueous fluid, and the permeability of the suppository ensures that entry of body fluids into the open cells under practical circumstances occurs essentially without dehydration of mucousal membrane tissue contacting the suppository. The suppository furthermore preferably comprises a controlled release formulation.

  提供了一种含有至少一种生物相容性聚合物的栓剂，其中该生物相容性聚合物基本上不可生物降解，且当与水性液体接触时，该栓剂基本上不膨胀。该栓剂还可以进一步包括多个开放单元，这些单元至少部分地由相互穿插的基质分隔开，该基质包含至少一种分支或交联形式的生物相容性聚合物。这些互相连接的开放单元能够包含水性液体，而栓剂的渗透性确保体液进入开放单元时，在实际情况下基本上不会导致接触栓剂的粘膜组织脱水。此外，该栓剂最好包含控制释放配方。
• SYNTHETIC LEATHER
  申请人：DIC Corporation

  公开号：EP3786351A1

  公开（公告）日：2021-03-03

  The present invention provides a synthetic leather including at least a base material (i), an adhesive layer (ii), and a skin layer (iii), wherein the adhesive layer (ii) is formed of an anionic urethane resin composition containing an anionic urethane resin (S) having an anionic group concentration of 0.25 mmol/g or less, water (T), and an anionic surfactant (U), and the skin layer (iii) is formed of a urethane resin composition containing a urethane resin (A), for which a raw material is reactive silicone (a1) having a functional group that reacts with an isocyanate group, and containing water (B). Preferably, the urethane resin (A) is an anionic urethane resin having an acid value of 20 mgKOH/g or less.

  本发明提供了一种合成皮革，至少包括基底材料 (i)、粘合剂层 (ii) 和皮层 (iii)，其中粘合剂层 (ii) 由阴离子氨基甲酸酯树脂组合物形成，该组合物含有阴离子基团浓度为 0.25 mmol/g 或更低、水 (T) 和阴离子表面活性剂 (U)，而表皮层 (iii) 是由含有聚氨酯树脂 (A) 的聚氨酯树脂组合物形成的，聚氨酯树脂 (A) 的原料是具有与异氰酸酯基反应的官能团的活性硅氧烷 (a1)，并含有水 (B)。聚氨酯树脂（A）最好是酸值不超过 20 mgKOH/g 的阴离子聚氨酯树脂。
• Synthetic leather
  申请人：DIC Corporation

  公开号：US11479909B2

  公开（公告）日：2022-10-25

  The present invention provides a synthetic leather including at least a base material (i), an adhesive layer (ii), and a skin layer (iii), wherein the adhesive layer (ii) is formed of an anionic urethane resin composition containing an anionic urethane resin (S) having an anionic group concentration of 0.25 mmol/g or less, water (T), and an anionic surfactant (U), and the skin layer (iii) is formed of a urethane resin composition containing a urethane resin (A), for which a raw material is reactive silicone (a1) having a functional group that reacts with an isocyanate group, and containing water (B). Preferably, the urethane resin (A) is an anionic urethane resin having an acid value of 20 mgKOH/g or less.

  本发明提供了一种合成皮革，至少包括基底材料 (i)、粘合剂层 (ii) 和皮层 (iii)，其中粘合剂层 (ii) 由阴离子氨基甲酸酯树脂组合物形成，该组合物含有阴离子基团浓度为 0.25 mmol/g 或更低、水 (T) 和阴离子表面活性剂 (U)，而表皮层 (iii) 是由含有聚氨酯树脂 (A) 的聚氨酯树脂组合物形成的，聚氨酯树脂 (A) 的原料是具有与异氰酸酯基反应的官能团的活性硅氧烷 (a1)，并含有水 (B)。聚氨酯树脂（A）最好是酸值不超过 20 mgKOH/g 的阴离子聚氨酯树脂。
• Systems and methods for delivery of materials for agriculture and aquaculture
  申请人：Taft David

  公开号：US20100004124A1

  公开（公告）日：2010-01-07

  Systems and methods for delivering agricultural (including aquacultural) materials. Crystalline polymeric systems, referred to as CYC carriers, are associated with the agricultural materials, through chemical bonding or through physical association. The crystallinity of the CYC carriers results from the presence of crystallizable side chains, for example long chain n-alkyl moieties, which results in relatively low and sharp melting temperatures. One class of CYC carriers, referred to as CYSC polymers, have a majority of the crystallizable side chains pendant from the polymer backbone. Another class of CYC carriers, referred to as ECC polymers, have a majority of the crystallizable side chains attached to terminal units of the polymer backbone. The ECC polymers can for example be obtained by modification of PLGA polymers. The CYC carriers in another class are non-polymeric. Some CYC carriers, referred to as CYC assemblies, have enhanced crystallinity as a result of the physical association of crystallizable moieties which are present in different types of molecule, for example between a polymer containing crystallizable moieties and a monomer containing crystallizable moieties. Preferably the CYC carrier is bioerodable.
• US6130329A
  申请人：——

  公开号：US6130329A

  公开（公告）日：2000-10-10