introduces neat NMR spectroscopy of the ionicliquids as a probe for solute–solvent interactions as well as a tool for characterisation. Our studies show that high catalytic efficacy of functional ionicliquids can be achieved by integrating their greensynthesis, along with a fine‐tuning of their structure. Demonstrating that ionicliquid solvents can be made by a truly green procedure, and that their properties
CROSSLINKABLE COMPOSITION CROSSLINKABLE WITH A LATENT BASE CATALYST
申请人:Brinkhuis Richard Hendrikus Gerrit
公开号:US20130041091A1
公开(公告)日:2013-02-14
The present invention relates to a crosslinkable composition comprising at least one crosslinkable component crosslinkable by a latent base crosslinking catalyst comprising a substituted carbonate salt according to formula 1 wherein X
+
represents a cation and wherein R is hydrogen, alkyl, aryl or aralkyl group, and wherein the crosslinkable composition comprises 0.1-10 wt %, preferably 0.1-5, more preferably 0.2-3 and most preferably 0.5-1.5 wt % water (relative to total weight of the crosslinkable composition). The invention further relates to a coating composition comprising the crosslinkable composition according to the invention, a novel catalyst composition and to the use of said catalyst composition according to the invention as a latent base crosslinking catalyst in coating compositions, preferably in RMA crosslinkable compositions.
Kinetic study of the reaction of dimethyl carbonate with trialkylamines
作者:Duane E. Weisshaar、Gary W. Earl、Eric M. Villa、Jessica L. Paumen Zierke、Christopher J. Fry、Kara L. Becvar、Shik Ki Li、Matthew C. Schafer
DOI:10.1002/kin.20476
日期:2010.4
for a plethora of end‐uses from fabric‐care formulations to asphalt emulsifiers, typically from nongreen alkylating reagents. The kinetics of a reaction employing dimethylcarbonate (DMC) as a green alkylating agent was investigated using three trialkylamines (tributylamine, trihexylamine, and trioctylamine) at several temperatures. Arrhenius and Eyring analysis of the data showed that values of Ea (79
Crosslinkable composition crosslinkable with a latent base catalyst.
申请人:Nuplex Resins B.V.
公开号:EP2374836A1
公开(公告)日:2011-10-12
The present invention relates to a crosslinkable composition comprising at least one crosslinkable component and a latent base crosslinking catalyst, which crosslinkable composition has a solids content of at least 55 wt% (dry weight after crosslinking relative to the total weight of the crosslinking composition) wherein the latent base catalyst is a substituted carbonate salt according to formula 1
wherein X+ represents a cation, preferably a quaternary ammonium or phosphonium, and wherein R is hydrogen, alkyl, aryl or aralkyl group. The invention relates in particular to a composition crosslinkable by Real Michael Addition (RMA) reaction wherein a component with at least 2 activated unsaturated groups and a component with at least 2 acidic protons C-H in activated methylene or methine groups react and crosslink to each other in the presence of a strong base catalyst. The invention further relates to a coating composition comprising the crosslinkable composition according to the invention, a novel catalyst composition and to the use of said catalyst composition according to the invention as a latent base crosslinking catalyst in coating compositions, preferably in RMA crosslinkable compositions.
The present invention relates to a crosslinkable composition comprising reactive components A and B each comprising at least 2 reactive groups wherein the at least 2 reactive groups of component A are acidic protons (C-H) in activated methylene or methine groups and the at least 2 reactive groups of component B are activated unsaturated groups (C=C) to achieve crosslinking by Real Michael Addition (RMA) in the presence of base catalyst C wherein the component A is a malonate containing component and wherein the crosslinkable composition comprises in addition to the malonate component A, a second component A2 comprising reactive acidic protons having a higher acidity than component A and also is reactive towards component B.
本发明涉及一种可交联组合物,该组合物由各自包含至少 2 个活性基团的活性组分 A 和 B 组成,其中组分 A 的至少 2 个活性基团为活化亚甲基或甲基中的酸性质子(C-H),组分 B 的至少 2 个活性基团为活化不饱和基团(C=C),以便在碱催化剂 C 的存在下通过真正迈克尔加成(RMA)实现交联,其中组分 A 为含丙二酸的组分,而可交联组合物除丙二酸组分 A 外还包括第二种组份 A2,它含有活性酸性质子,酸度高于组份 A,并且对组份 B 具有活性。