3,5-Di-tert-butyl-4-hydroxy-benzoic acid 4-octyl-phenyl ester | 4221-84-5

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 缩酚酸和缩酚酸环醚类
• 英文名称: 3,5-Di-tert-butyl-4-hydroxy-benzoic acid 4-octyl-phenyl ester
• 英文别名: (4-Octylphenyl) 3,5-ditert-butyl-4-hydroxybenzoate
• CAS: 4221-84-5
• 化学式: C₂₉H₄₂O₃
• 分子量: 438.651
• InChiKey: CQVBKBVTUQEHLS-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  10.4
• 重原子数：
  32
• 可旋转键数：
  12
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.55
• 拓扑面积：
  46.5
• 氢给体数：
  1
• 氢受体数：
  3

文献信息

• Polyolefin composition
  申请人：SUMITOMO CHEMICAL COMPANY, LIMITED

  公开号：EP0226453A2

  公开（公告）日：1987-06-24

  A polyolefin composition contains (1) from 0.01 to 1.0 part by weight of tris(3,5-di-t-butyl-4-hydroxybenzyl)-isocyanurate, (2) from 0.01 to 0.5 part by weight of a pentaerythritol diphosphite compound represented by the formula: where R, represents a methyl group, a tertiary butyl group or a tertiary amyl group, R2 represents a hydrogen atom, a methyl group, a tertiary butyl group, a tertiary amyl group, a phenyl group or a cyclohexyl group, R3 represents a hydrogen atom, a methyl group or a tertiary butyl group and R4 represents a hydrogen atom, a methyl group or a tertiary butyl group, provided that not all of R2, R3 and R4 simultaneously represent hydrogen atoms, (3) from 0.01 to 1.0 part by weight of one compound selected from phenyl benzoate compounds, benzotriazole compounds and benzophenone compounds and (4) from 0.01 to 1.0 part by weight of a heterocyclic hindered amine compound which are blended with 100 parts by weight of a polyolefin. Extremely excellent light stability, particularly, at high temperature is obtained.

  一种聚烯烃组合物含有(1)0.01-1.0 份(重量)三(3,5-二叔丁基-4-羟基苄基)异氰尿酸酯，(2)0.01-0.5 份(重量)由式表示的季戊四醇二亚磷酸酯化合物： 其中 R，代表甲基、叔丁基或叔戊基，R2 代表氢原子、甲基、叔丁基、叔戊基、苯基或环己基，R3 代表氢原子、甲基或叔丁基，R4 代表氢原子、甲基或叔丁基，条件是并非所有 R2、R3 和 R4 同时代表氢原子，(3) 0.(4) 0.01 至 1.0 重量份的杂环受阻胺化合物，它们与 100 重量份的聚烯烃混合。可获得极佳的光稳定性，尤其是在高温下。
• Process for producing pre-expanded particles of a polyolefin
  申请人：SUMITOMO CHEMICAL COMPANY, LIMITED

  公开号：EP0323719A2

  公开（公告）日：1989-07-12

  A process for producing pre-expanded particles of a thermoplastic resin, wherein said particles are of a polyolefin obtained by polymerizing an olefin in the presence of a Ziegler-Natta catalyst, and contain not more than 1% by weight of particles of diameter up to 105 µm and having a particle size distribution represented by:R(Dp) = 100exp[-(Dp/De)n] where Dp is300 or more and represents a particle diameter (µ m); R(Dp) represents a cumulative weight percentage; De represents an absolute size constant that is a particle diameter (µm) corresponding to R(Dp) 36.8% by weight; and n is 25 or more and is a distribution constant. The process can be carried out by dispersing the particles in a liquid medium (e.g. water) containing a blowing agent (e.g. an aliphatic hydrocarbon) and a phenolic antioxidant, heating to above the softening point of the polymer, and releasing the dispersion into a zone of lower pressure. Pre-expanded polyolefin particles free from scatters of cell diameter or particle diameter and having a high expansion ratio are obtained, which can be put into a mold for expansion molding to easily provide a uniformly expanded article.

  一种生产热塑性树脂预膨化颗粒的工艺，其中所述颗粒为在齐格勒-纳塔催化剂存在下通过聚合烯烃而获得的聚烯烃，且含有不超过 1%（按重量计）的颗粒，其直径不超过 105 µm，其粒度分布用以下公式表示：R(Dp) = 100exp[-(Dp/De)n]，其中 Dp 为 300 或以上，代表颗粒直径 (µ m)；R(Dp) 代表累积重量百分比；De 代表绝对粒度常数，即与 R(Dp) 36.8%（重量百分比）；n 为 25 或更多，是分布常数。 该工艺可通过将颗粒分散在含有发泡剂（如脂肪烃）和酚类抗氧化剂的液体介质（如水）中，加热至聚合物软化点以上，然后将分散体释放到压力较低的区域来实现。 得到的预膨化聚烯烃颗粒没有细胞直径或颗粒直径的散射，具有较高的膨化率，可将其放入模具中进行膨化成型，从而很容易得到膨化均匀的制品。
• LONG-FIBERGLASS REINFORCED POLYOLEFIN MOLDINGS IMPROVED IN WEATHERING RESISTANCE AND COMPOSITIONS USEFUL AS THE RAW MATERIAL THEREFOR
  申请人：KAWASAKI STEEL CORPORATION

  公开号：EP0812882A1

  公开（公告）日：1997-12-17

  A long-glass-fiber reinforced polyolefin molding is conventionally known as being excellent in mechanical strength, but has a drawback of low weathering resistance. Also, the addition of a colorant causes deterioration in the mechanical properties of a conventional molding. The present invention provides a long-glass-fiber reinforced polyolefin molding having excellent weathering resistance and high mechanical strength, and a material composition therefor, and also provides a molding which causes no deterioration in both properties even by coloring, and a composition therefor. Namely, the present invention provides a composition comprising at least (A) long-glass-fiber reinforced polyolefin pellets which are obtained by impregnating a bundle of glass fibers with a polyolefin and then cutting the glass fibers in a length of 2 to 150 mm in the direction of the fibers, and which contain 10 to 90 wt% of glass fibers, the glass fibers in the pellets being arranged in substantially the same length as the pellets, (B) a photostabilizer, and (C) a photoabsorber, wherein the total amount of (B) the photostabilizer and (C) the photoabsorber is 0.25 to 7.5 parts by weight based on the total of 100 parts by weight of polyolefin. The present invention also provides a long-glass-fiber reinforced polyolefin molding comprising at least (a) a polyolefin, (b) glass fibers having a fiber length of 2 to 150 mm, (B) a photostabilizer, and (C) a photoabsorber, wherein the total amount of (B) the photostabilizer and (C) the photoabsorber is 0.25 to 7.5 parts by weight based on the total of 100 parts by weight of polyolefin, the content of the glass fibers is 10 to 90 wt%. It was also found that even when the molding is colored black with carbon black or colored gray with zinc sulfide, the both properties can be maintained by setting the mixing ratio to the additives to within a specified range.

  众所周知，长玻璃纤维增强聚烯烃模塑具有出色的机械强度，但其缺点是耐候性较低。此外，添加着色剂会导致传统模塑材料的机械性能下降。本发明提供了一种具有优异耐候性和高机械强度的长玻璃纤维增强聚烯烃模塑材料及其材料组合物，还提供了一种即使添加着色剂也不会导致这两种性能恶化的模塑材料及其组合物。 也就是说，本发明提供了一种组合物，它至少包含 (A) 长玻璃纤维增强聚烯烃颗粒，这种颗粒是通过将玻璃纤维束浸渍在聚烯烃中，然后沿纤维方向将玻璃纤维切割成 2 至 150 毫米的长度而得到的、(B) 光稳定剂，和 (C) 光吸收剂，其中 (B) 光稳定剂和 (C) 光吸收剂的总量为 0.以 100 份聚烯烃的总重量为基准，(B) 光稳定剂和(C) 光吸收剂的总量为 0.25 至 7.5 份（重量比）。 本发明还提供了一种长玻纤增强聚烯烃模塑物，至少包括(a) 聚烯烃，(b) 纤维长度为 2 至 150 毫米的玻璃纤维，(B) 光稳定剂和(C) 光吸收剂，其中(B) 光稳定剂和(C) 光吸收剂的总量为 0.25 至 7.5 重量份（基于聚烯烃的总量为 100 重量份），玻璃纤维的含量为 10 至 90 重量％。 研究还发现，即使用炭黑将模塑染成黑色或用硫化锌将模塑染成灰色，只要将添加剂的混合比例设定在规定的范围内，就能保持这两种特性。
• Synthetic resin and bearing parts made thereform
  申请人：Minebea Co., Ltd.

  公开号：EP1518891A1

  公开（公告）日：2005-03-30

  According to the invention, a synthetic resin composition for the manufacture of parts which require a low coefficient of friction for example bearing parts or other sliding parts having a number of desirable properties is provided. The resin composition is made of a fine powder of RBC, CRBC and mixtures of RBC and CRBC dispersed in a synthetic resin. The RBC and /or CRBC fine powder have an average particle diameter of less than 10µm, optionally 1 to less than 10µm, preferably 1µm to 5µm. Desirably the weight percent of the RBC and/or CRBC is from 10% to 70% preferably from 30% to 70% of the entire composition and is uniformly dispersed in the resin.    In another aspect of the invention, parts desirably having particularly a low coefficient of friction are fabricated according to the invention from the resin composition. The parts can be made molded desirably extrusion or injection molded from the resin composition according to the invention to form for a bearing or portion thereof or other device requiring a low coefficient of friction. The fabricated products are desirable for use with or without lubrication. The resulting products have a desirable low coefficient of friction improved durability, mechanical strength, and lubricating oil retention.

  根据本发明，提供了一种合成树脂组合物，用于制造需要低摩擦系数的零件，例如轴承零件或其他具有多种理想性能的滑动零件。该树脂组合物由分散在合成树脂中的 RBC、CRBC 以及 RBC 和 CRBC 混合物的细粉末制成。RBC 和/或 CRBC 细粉的平均颗粒直径小于 10µm，可选 1 至小于 10µm，优选 1 至 5µm。RBC 和/或 CRBC 的重量百分比最好占整个组合物的 10% 到 70%，最好占 30% 到 70%，并均匀地分散在树脂中。 在本发明的另一方面，根据本发明，用树脂组合物制造出摩擦系数特别低的部件。这些部件可以根据本发明用树脂组合物挤压或注塑成型，用于轴承或其部分或其他需要低摩擦系数的装置。制造出来的产品最好能在有润滑或无润滑的情况下使用。所制成的产品具有理想的低摩擦系数、更高的耐用性、机械强度和润滑油保持力。
• Low-friction, high-dispersion synthetic resin compositon containing fine particles of RB ceramic or CRB ceramic and a method for its preparation
  申请人：Minebea, Co., Ltd.

  公开号：US20030229161A1

  公开（公告）日：2003-12-11

  A synthetic resin composition includes at least one synthetic resin and RBC or CRBC particles dispersed in the resin. A method for preparing a synthetic resin composition includes mixing RBC or CRBC particles with a synthetic resin at a temperature near the melting temperature of the synthetic resin. Preferably, the method of includes the step of kneading the mixture.

  合成树脂组合物包括至少一种合成树脂和分散在树脂中的 RBC 或 CRBC 颗粒。制备合成树脂组合物的方法包括在合成树脂熔化温度附近将 RBC 或 CRBC 颗粒与合成树脂混合。该方法最好包括揉捏混合物的步骤。