Bis(2,6-ditert-butyl-4-methylphenyl) hydrogen phosphite

• 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: Bis(2,6-ditert-butyl-4-methylphenyl) hydrogen phosphite
• 化学式: C₃₀H₄₇O₃P
• 分子量: 486.7
• InChiKey: GVIVHQUGNYOZCA-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  10.6
• 重原子数：
  34
• 可旋转键数：
  8
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.6
• 拓扑面积：
  38.7
• 氢给体数：
  1
• 氢受体数：
  3

文献信息

• METHOD FOR PRODUCING a-HYDROXYCARBOXYLIC ACID DIMERIC CYCLIC ESTER
  申请人：Kureha Corporation

  公开号：US20190330175A1

  公开（公告）日：2019-10-31

  Provided is a method for producing a high purity α-hydroxycarboxylic acid dimeric cyclic ester while heavy-component formation from an α-hydroxycarboxylic acid oligomer is suppressed. An α-hydroxycarboxylic acid dimeric cyclic ester is obtained by performing a depolymerization reaction in the coexistence of an inorganic acid or an inorganic acid salt or a mixture thereof; and an organophosphorus compound.

  提供了一种制备高纯度α-羟基羧酸二聚环酯的方法，同时抑制从α-羟基羧酸寡聚体中形成重组分。通过在无机酸或无机酸盐或二者混合物的共存下进行解聚反应，并加入有机磷化合物，可以得到α-羟基羧酸二聚环酯。
• SHORT POLYGLYCOLIC-ACID-RESIN FIBERS FOR USE IN WELL-TREATMENT FLUID
  申请人：Kureha Corporation

  公开号：EP2843024A1

  公开（公告）日：2015-03-04

  Polyglycolic acid resin short fibers for a well treatment fluid, the fibers having the following characteristics of (a) to (e): (a) an outside diameter of 5 to 300 µm; (b) a fiber length of 1 to 30 mm; (c) fineness of 0.1 to 25 D; (d) strength of 1 to 20 gf/D; and (e) a ratio of an area of the polyglycolic acid resin with respect to an area of a circle circumscribing a cross section of the fibers being from 10 to 95%; and a well treatment fluid containing the polyglycolic acid resin short fibers for a well treatment fluid.

  用于油井处理液的聚乙二醇酸树脂短纤维，该纤维具有以下(a)至(e)项特征：(a)外径为5至300微米；(b)纤维长度为1至30毫米；(c)细度为0.1至25D；(d)强度为1至20gf/D；(e)聚乙二醇酸树脂面积与纤维横截面圆周面积之比为10至95%；以及一种含有聚乙二醇酸树脂短纤维的油井处理液，用于油井处理液。
• SHORT POLYGLYCOLIC-ACID-RESIN FIBERS AND WELL-TREATMENT FLUID
  申请人：Kureha Corporation

  公开号：EP2843090A1

  公开（公告）日：2015-03-04

  PGA short fibers having the following characteristics of (a) to (c): (a) strength of 1 to 20 gf/D; (b) a mass loss of at least 10% after 14 days in water at a temperature of 60°C; and (c) a pH of 1 to 5 after 3 days in water at a temperature of 60°C with a solid content concentration of 2 mass%. The PGA short fibers preferably further having (d1) an outside diameter of 1 to 120 µm, (e1) a fiber length of 2 to 30 mm, and (f1) a fineness of 0.1 to 25 D, or the PGA short fibers preferably further having (d2) an outside diameter of 1 to 200 µm, (e2) a fiber length of less than 2 mm, and (f2) an aspect ratio of 2 to 1,200. Also, a well treatment fluid containing the PGA short fibers.

  具有以下(a)至(c)特性的 PGA 短纤维：(a)强度为 1 至 20 gf/D；(b)在温度为 60°C 的水中浸泡 14 天后，质量损失至少为 10%；以及(c)在温度为 60°C 的水中浸泡 3 天后，pH 值为 1 至 5，固体含量浓度为 2 质量%。PGA短纤维最好进一步具有(d1)外径为1至120微米，(e1)纤维长度为2至30毫米，以及(f1)细度为0.1至25D，或者PGA短纤维最好进一步具有(d2)外径为1至200微米，(e2)纤维长度小于2毫米，以及(f2)长径比为2至1,200。另外，一种含有 PGA 短纤维的井处理液。
• Method for producing α-hydroxycarboxylic acid dimeric cyclic ester
  申请人：Kureha Corporation

  公开号：US11046665B2

  公开（公告）日：2021-06-29

  Provided is a method for producing a high purity α-hydroxycarboxylic acid dimeric cyclic ester while heavy-component formation from an α-hydroxycarboxylic acid oligomer is suppressed. An α-hydroxycarboxylic acid dimeric cyclic ester is obtained by performing a depolymerization reaction in the coexistence of an inorganic acid or an inorganic acid salt or a mixture thereof; and an organophosphorus compound.

  本发明提供了一种生产高纯度α-羟基羧酸二聚环酯的方法，同时抑制了α-羟基羧酸低聚物中重组分的形成。α-羟基羧酸二聚环酯是在无机酸或无机酸盐或其混合物与有机磷化合物共存的情况下进行解聚反应而得到的。
• POLYHEXAMETHYLENEADIPAMIDE FIBER AND PROCESS FOR PRODUCING THE FIBER
  申请人：Asahi Kasei Kabushiki Kaisha

  公开号：EP0764729B9

  公开（公告）日：2003-10-01