1-(Ethylamino)propylurea

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 有机碳酸及其衍生物
• 英文名称: 1-(Ethylamino)propylurea
• 英文别名: 1-(ethylamino)propylurea
• 化学式: C₆H₁₅N₃O
• 分子量: 145.2
• InChiKey: DBSXDQDTACJTHA-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0
• 重原子数：
  10
• 可旋转键数：
  4
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.83
• 拓扑面积：
  67.2
• 氢给体数：
  3
• 氢受体数：
  2

文献信息

• Low Emissions Polyurethane Foam Made with Isocyanate Reactive Amine Catalyst
  申请人：AIR PRODUCTS AND CHEMICALS, INC.

  公开号：US20160075817A1

  公开（公告）日：2016-03-17

  Tertiary amine catalysts having isocyanate reactive groups that are capable of forming thermally stable covalent bonds able to withstand temperatures from 120° C. and higher and up to 250° C. are disclosed. These catalyst can be used to produce polyurethane foam having the following desirable characteristics: a) very low chemical emissions over a wide range of environmental conditions and isocyanate indexes (e.g., indexes as low as 65 but higher than 60) ; b) sufficient hydrolytic stability to maintain the catalyst covalently bound to foam without leaching of tertiary amine catalyst when foam is exposed to water or aqueous solutions even at temperatures higher than ambient (temperature range 25° C. to 90° C.); and c) stable contact interface between the polyurethane polymer and other polymers (for example polycarbonate) with minimal migration of tertiary amine catalyst from polyurethane polymer to other polymers yielding no noticeable polymer deterioration at the point of contact even under conditions of heat and humidity.

  本发明揭示了具有异氰酸酯反应基的三级胺催化剂，能够形成热稳定的共价键，能够承受120°C及更高温度，甚至可达250°C。这些催化剂可用于生产聚氨酯泡沫，具有以下理想特性：a）在广泛的环境条件和异氰酸酯指数（例如指数低至65但高于60）下，具有非常低的化学排放；b）具有足够的水解稳定性，以使催化剂共价结合到泡沫中，即使在高于环境温度（25°C至90°C）的水或水溶液中暴露泡沫，也不会出现三级胺催化剂渗出；c）聚氨酯聚合物与其他聚合物（例如聚碳酸酯）之间的稳定接触界面，即使在热和湿度条件下，也只有极少量的三级胺催化剂从聚氨酯聚合物迁移到其他聚合物，不会在接触点处出现明显的聚合物恶化。
• Delay action catalyst for improving the stability of polyurethane systems having halogen containing blowing agents
  申请人：EVONIK DEGUSSA GMBH

  公开号：US10023681B2

  公开（公告）日：2018-07-17

  Catalyst compositions useful in the production of insulating polyurethane or polyisocyanurate foam are disclosed. The catalyst compositions impart increased stability of a mixture of the catalyst, a halogen-containing blowing agent, and a polyol. These catalyst compositions include amine/acid salts with a pH of <7.0 which can be used in combined with tertiary amine catalysts and metal-based or ammonium-based trimerization catalyst and at least one metal-based gel catalyst and optionally one or more of an additional catalyst described in (1) or (2). These improved catalysts can be used with any halogenated blowing agent, and provide substantial stability benefits with the use of hydrofluoroolefins and hydrofluorochloroolefins. In an exemplary embodiment, a process includes providing a pre-mix comprising an organic carboxylic di-acid, tri-acid or poly-acid component and contacting a tetraalkylguanidine and/or a tertiary amine containing an isocyanate reactive group with the acid component in the pre-mix to form a mixture of tetraalkylguanidine salt or tertiary amine salt or their combination.

  本发明公开了用于生产绝缘聚氨酯或聚异氰脲酸酯泡沫塑料的催化剂组合物。这些催化剂组合物提高了催化剂、含卤发泡剂和多元醇混合物的稳定性。这些催化剂组合物包括 pH 值小于 7.0 的胺/酸盐，可与叔胺催化剂、金属基或铵基三聚催化剂、至少一种金属基凝胶催化剂以及（1）或（2）中所述的一种或多种附加催化剂结合使用。这些改进的催化剂可与任何卤代发泡剂一起使用，并在使用氢氟烯烃和氢氟氯烯烃时具有很大的稳定性优势。在一个示例性实施方案中，一种工艺包括提供一种包含有机羧酸二酸、三酸或多酸组分的预混料，并将四烷基胍和/或含有异氰酸酯活性基团的叔胺与预混料中的酸组分接触，以形成四烷基胍盐或叔胺盐的混合物或它们的组合。
• Delay Action Catalyst for Improving The Stability of Polyurethane Systems Having Halogen Containing Blowing Agents
  申请人：AIR PRODUCTS AND CHEMICALS, INC.

  公开号：US20140113984A1

  公开（公告）日：2014-04-24

  Catalyst compositions useful in the production of insulating polyurethane or polyisocyanurate foam are disclosed. The catalyst compositions impart increased stability of a mixture of the catalyst, a halogen-containing blowing agent, and a polyol. These catalyst compositions include amine/acid salts with a pH of <7.0 which can be used in combined with tertiary amine catalysts and metal-based or ammonium-based trimerization catalyst and at least one metal-based gel catalyst and optionally one or more of an additional catalyst described in (1) or (2). These improved catalysts can be used with any halogenated blowing agent, and provide substantial stability benefits with the use of hydrofluoroolefins and hydrofluorochloroolefins. In an exemplary embodiment, a process includes providing a pre-mix comprising an organic carboxylic di-acid, tri-acid or poly-acid component and contacting a tetraalkylguanidine and/or a tertiary amine containing an isocyanate reactive group with the acid component in the pre-mix to form a mixture of tetraalkylguanidine salt or tertiary amine salt or their combination.