摘要:
Compositions, methods, and coating composition using a curing agent are provided herein. In one embodiment, a curing agent for epoxy resins may be prepared using a formulation including: (a) an adduct of: (i) a diglycidyl ether of a bisphenol, and (ii) a first polyamine; (b) a second polyamine; and (c) water; wherein the composition has an amine hydrogen equivalent weight, based on solids, of less than or equal to 105.
摘要:
A three-dimensional porous photonic structure, whose internal pore surfaces can be provided with desired surface properties in a spatially selective manner with arbitrary patterns, and methods for making the same are described. When exposed to a fluid (e.g., via immersion or wicking), the fluid can selectively penetrate the regions of the structure with compatible surface properties. Broad applications, for example in security, encryption and document authentication, as well as in areas such as simple microfluidics and diagnostics, are anticipated.
摘要:
A three-dimensional porous photonic structure, whose internal pore surfaces can be provided with desired surface properties in a spatially selective manner with arbitrary patterns, and methods for making the same are described. When exposed to a fluid (e.g., via immersion or wicking), the fluid can selectively penetrate the regions of the structure with compatible surface properties. Broad applications, for example in security, encryption and document authentication, as well as in areas such as simple microfluidics and diagnostics, are anticipated.
摘要:
Durch Umsetzung von ein oder mehreren Epoxidharzen mit einem oder mehreren amphiphilen Epoxidharzhärtern in Wasser im Sinne einer Phaseninversionspolymerisation, mit der Maßgabe, dass der Bindemittelgehalt der Polymerschaumstoffe im Bereich von 15 bis 39,9 Gew.-% liegt, sind nanoporöse Polymerschaumstoffe erhältlich. Diese eignen sich als Wärmedämm-Materialien.
摘要:
A composition includes a plurality of capsules, and a polymerizer in the capsules. The capsules have an average outer diameter less than 10 micrometers. The capsules can be made by sonicating an emulsion to form a microemulsion, where the emulsion includes water, a surfactant, a first polymerizer and a second polymerizer, and then polymerizing the first polymerizer. The capsules may be present in a composite material that includes a polymer matrix and an activator.
摘要:
This document relates to compositions including a crosslinkable polymer including a pendant epoxide repeat unit and an amine crosslinker, and methods of treating a subterranean formation by providing the composition to the formation. The pendant epoxide repeat unit has the structure (I). Each R 1 is independently a (C 1 -C 10 ) alkylene or (C 1 -C 10 ) alkylene ether, each alkylene ether independently having a ratio of carbon atoms to oxygen atoms of 1:1 to 4:1.
摘要:
A hardener composition including: (a) a polymeric adduct; (b) a monomeric unmodified amine; and (c) an extender; a curable composition including (A) at least one epoxy compound; and (B) the above hardener composition; and a thermoset prepared from the above curable composition.
摘要:
Die vorliegende Erfindung betrifft eine härtbare oder ausgehärtete Zusammensetzung umfassend wenigstens ein Epoxidharz, ein offenkettiges Polyamin und eine Verbindung der Formel (I) wobei die Reste R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , R 9 , R 10 , R 11 , R 12 , R 13 , R 14 , R 15 , R 16 , R 17 , R 18 , R 19 , und R 20 jeweils und unabhängig voneinander aus der Gruppe ausgewählt sind, die Wasserstoff, Methyl, Ethyl, Propyl, Isopropyl und Amin umfasst, mit der Maßgabe, dass wenigstens ein Rest aus der Gruppe umfassend R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , R 9 , und R 10 Amin ist und wenigstens ein Rest aus der Gruppe umfassend R 11 , R 12 , R 13 , R 14 , R 15 , R 16 , R 17 , R 18 , R 19 , und R 20 Amin ist; Verwendung einer Härterkombination umfassend ein aliphatisches Diamin und einer Verbindung der Formel (I) zur Härtung von Epoxidharz; ein Verfahren zur Beschichtung einer Oberfläche oder zur Imprägnierung eines textilen Flächengebildes, umfassend die Schritte (a) Auftragen und (b) Aushärten der härtbaren Zusammensetzung sowie eine Oberfläche, Faserverbundstoff, Beschichtung oder 20 Klebstoff umfassend die ausgehärtete Zusammensetzung.
摘要:
The invention relates to a hydrophilically modified multifunctional amine AC which has more than one primary amino group per molecule, and at least one group per molecule derived from the reaction of an epoxide group with a reactive group selected from the group consisting of secondary amino groups >NH, hydroxyl groups -OH, mercaptan groups -SH, amide groups -CO-NHR, where R can be hydrogen or an alkyl group having from one to twelve carbon atoms, hydroxyester groups, and acid groups, particularly carboxyl groups - COOH, sulphonic acid groups -SO 3 H, and phosphonic acid groups-PO 3 H 2 , and preferably, also moieties which are compatible with an epoxy resin, as well as a process for its preparation, and a method of use thereof.
摘要翻译:本发明涉及一种亲水改性的多功能胺AC,其每分子具有多于一个伯氨基,每分子至少有一个基团来源于环氧基与选自仲氨基的反应性基团的反应> NH,羟基-OH,硫醇基-SH,酰胺基-CO-NHR,其中R可以是氢或具有1至12个碳原子的烷基,羟基酯基和酸基,特别是羧基-COOH,磺酸 酸基-SO 3 H和膦酸基-PO 3 H 2,以及优选与环氧树脂相容的部分,以及其制备方法及其使用方法。
摘要:
Curable epoxy resin compositions, cured epoxy resin compositions, and processes of forming the same, including at least one epoxy resin, at least one sterically hindered amine curing agent and at least one non-sterically hindered amine curing agent which provides toughness properties to the curable composition and resultant cured product made from the curable composition.