聚乙烯醇1788 | 25213-24-5

• 物质功能分类: 原料药 - 激素及调节内分泌功能类药 - 避孕药
• 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
• 中文名称: 聚乙烯醇1788
• 中文别名: 醋酸乙烯酯与乙烯醇的聚合物；聚乙烯醇
• 英文名称: Acetic acid ethenyl ester, polymer with ethenol
• 英文别名: ethenol;ethenyl acetate
• CAS: 25213-24-5
• 化学式: C6H10O3
• 分子量: 130.14
• InChiKey: CALWOYBZYFNRDN-UHFFFAOYSA-N

物化性质

• 熔点：
  >300 °C
• 密度：
  1.23

计算性质

• 辛醇/水分配系数(LogP)：
  1.38
• 重原子数：
  9
• 可旋转键数：
  2
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.17
• 拓扑面积：
  46.5
• 氢给体数：
  1
• 氢受体数：
  3

安全信息

• TSCA：
  TSCA listed
• 安全说明：
  S26,S36/37,S45
• 危险类别码：
  R23/24/25
• WGK Germany：
  1
• 海关编码：
  3905300000

反应信息

• 作为产物：
  描述：

  sodium hydroxide 、 乙酸乙烯酯 在 水 、 盐酸 作用下， 以 四氢呋喃 为溶剂， 反应 26.0h， 以Thereby, a TFE/vinyl alcohol/vinyl acetate polymer (A1-98) was obtained的产率得到聚乙烯醇1788
  参考文献：
  名称：

  COMPOSITION, POROUS POLYMER MEMBRANE AND HYDROPHILIC AGENT

  摘要：

  本发明旨在提供一种具有优异的亲水性、水透过性、机械强度、化学耐久性和低污染性的组合物，能够制备出从中不太可能溶出亲水剂的多孔聚合物膜。本发明的组合物包括一种氟化乙烯树脂和一种共聚物（A），其中包括一种乙烯醇单元和一种氟单体单元。

  公开号：

  US20160145369A1

文献信息

• Process for continuous controlled alcoholysis of polyvinyl acetate
  申请人：E.I. DU PONT DE NEMOURS AND COMPANY

  公开号：EP0054716A2

  公开（公告）日：1982-06-30

  Improved process for the preparation of partially alcoholyzed polyvinyl acetate having good compositional uniformity comprises rapid premixing of the polyvinyl acetate polymer and base catalyst solutions in a static mixer and carrying out the alcoholysis reaction in an intermeshing, self-wiping, twin-rotor mixer or mixing extruder. The process yields polyvinyl alcohol product having a maximum hot water insoluble fraction of about 1.1% by weight obtained by the proper adjustment of the feed temperature, the shear rate in the premixer, and the catalyst concentration in the catalyst feed solution.

  制备具有良好成分均匀性的部分醇解聚醋酸乙烯酯的改进工艺包括在静态混合器中快速预混合聚醋酸乙烯酯聚合物和基催化剂溶液，并在啮合、自擦拭、双转子混合器或混合挤压机中进行醇解反应。 通过适当调节进料温度、预混合器中的剪切速率和催化剂进料溶液中的催化剂浓度，该工艺可获得最大热水不溶部分约为 1.1%（按重量计）的聚乙烯醇产品。
• New chewing gum base and their use in a chewing gum
  申请人：NABISCO BRANDS, Inc.

  公开号：EP0066864A2

  公开（公告）日：1982-12-15

  The present invention is a homogeneous gum base composition which includes a properly plasticized elastomer component and a properly plasticized resin component, and optionally, a third component having fillers, emulsifiers, and/or softening agents, texturizing agents and waxes normally associated with production of chewing gum base. This invention also includes a method of preparing the novel chewing gum base as well as their use in a chewing gum.

  本发明是一种均匀的口香糖胶基组合物，它包括适当塑化的弹性体成分和适当塑化的树脂成分，以及可选的第三种成分，第三种成分具有通常与口香糖胶基生产相关的填料、乳化剂和/或软化剂、质地剂和蜡。本发明还包括制备新型口香糖基料的方法以及它们在口香糖中的用途。
• Chewing gum composition and method of making same
  申请人：WARNER-LAMBERT COMPANY

  公开号：EP0230858A2

  公开（公告）日：1987-08-05

  A chewing gum composition having a low viscosity range and high cohesivity which is suitable for dispensing from a container, such as a squeezable tube, under mild pressure which includes high molecular weight resin-containing gum base in an amount of 15-25%, a cohesive sweetening-bulking component in an amount of from about 15% to about 82%, crystallization inhibitor in an amount of from about 1-15%, and a fine-tuning fluidization component in an amount of from about 0.5%-15% by weight.

  一种具有低粘度范围和高凝聚力的口香糖组合物，适合在轻微压力下从容器（如可挤压的软管）中分装，该组合物包括含量为 15-25% 的高分子量含树脂胶基、含量为 15% 至 82% 的粘性增甜-保鲜成分、含量为 1-15% 的结晶抑制剂以及含量为 0.5%-15% （按重量计）的微调流化成分。
• Chewing gum base composition and method of making same
  申请人：WARNER-LAMBERT COMPANY

  公开号：EP0247969A2

  公开（公告）日：1987-12-02

  The present invention is a chewing gum base composition and a method for making same which includes an elastomer and a resin prepared in the absence of rosin esters and terpene components which includes an elastomer component raised to a compatibilization temperature for addition of a compatibilization component. The composition includes a high melting point compatibilization component added under low shear mixing conditions at a temperature sufficient to masticate the elastomer for forming a substan­tially homogeneous mass with the resin component. The compatibilization component is capable of effectuating dissociation of the elastomer under the conditions of temperature and mixing for forming the substantially homo­geneous mass. Finally, a resin component is added also under low shear mixing conditions and mildly elevated temperatures until a substantially homogenous gum base mass is formed.

  本发明是一种口香糖基料组合物及其制造方法，它包括在不含松香酯和萜烯成分的情况下制备的弹性体和树脂，其中包括将弹性体成分提高到相容温度以加入相容成分。该组合物包括在低剪切力混合条件下添加的高熔点相容组分，其温度足以使弹性体与树脂组分形成基本均匀的团块。在温度和混合条件下，相容组分能够使弹性体解离，从而形成基本均匀的物质。最后，在低剪切力混合条件和轻度升温条件下加入树脂成分，直至形成基本均匀的胶基。
• Use of maltitiol in chewing gum compositions for improved physical stability
  申请人：WARNER-LAMBERT COMPANY

  公开号：EP0325090A2

  公开（公告）日：1989-07-26

  A sugarless, anhydrous chewing gum composition, and products made therefrom which has a firm textural integrity and a soft ghew characteristic and very low-­moisture content and low-moisture pick-up over time. The composition includes gum base in an amount of from 18% to about 75% by weight, and a low-moisture pick-up, texturizing sweetening/bulking agent in an amount sufficient to provide textural integrity and a soft chew characteristic over a period of time.

  一种无糖、无水的口香糖组合物及其制成的产品，具有坚固的质地完整性和柔软的口感特征，而且随着时间的推移，水分含量和水分析出量都很低。该组合物包括胶基（按重量计，含量从 18% 到 75% 左右）和低水分萃取剂、质地增甜剂/增稠剂（其含量足以在一段时间内提供完整的质地和柔软的咀嚼特性）。