Thermoregulated phase-transfer rhodium nanoparticle catalyst for hydroaminomethylation of olefins
作者:Kaoxue Li、Yanhua Wang、Yicheng Xu、Wenjiang Li、Mingming Niu、Jingyang Jiang、Zilin Jin
DOI:10.1016/j.catcom.2013.01.018
日期:2013.4
Rh nanoparticles used as catalysts for hydroaminomethylation reaction is reported for the first time. An efficient and recyclable Rh nanoparticle catalyst stabilized by thermoregulated ligand Ph2P(CH2CH2O)nCH3 (n = 16) was studied for the hydroaminomethylation of olefins in the aqueous/1-butanol biphasic system through thermoregulated phase-transfer catalysis, which allows not only for a homogeneous
RAPID CURING THIOL EPOXY RESIN WITH IMPROVED COMPRESSION STRENGTH PERFORMANCE
申请人:The Boeing Company
公开号:EP3165561A1
公开(公告)日:2017-05-10
Aspects described herein generally describe epoxy resins and methods of epoxy resin formation. In some embodiments, a resin includes the reaction product of one or more polythiols, one or more polyepoxides, one or more fillers and one or more amine catalysts. Polythiols have between two and about ten thiol moieties. Polyepoxides have between two and about ten epoxy moieties. One or more amine catalysts of the formula NR1R2R3, wherein each of R1, R2, and R3 is independently linear or branched C1-20 alkyl or two or more of R1, R2, and R3 combine to form cycloalkyl. The resin has a compressive strength of at least 14 ksi at 2% offset at 70°F and at least 8 ksi at 2% offset at 190°F.
The use of an alkoxylated polytetrahydrofurane of formula
wherein m, m', n, n', p, p' and k are integers in the range of ≥ 1, R1 denotes an unsubstituted linear or branched alkyl radical, R2 denotes -CH2-CH3, and R3 denotes a hydrogen atom or -CH3, as an additive in a fuel for reducing fuel consumption in the operation of an internal combustion engine with this fuel.
The use of a complex ester obtainable by esterification reaction between aliphatic linear or branched C2- to C12-dicarboxylic acids, aliphatic linear or branched polyhydroxy alcohols with 3 to 6 hydroxyl groups, and, as chain stopping agents, aliphatic linear or branched C1- to C30-monocarboxylic acids or aliphatic linear or branched monobasic Ci- to C30-alcohols, as an additive in a fuel.
Rapid curing thiol epoxy resin with improved compression strength performance
申请人:THE BOEING COMPANY
公开号:US10035873B2
公开(公告)日:2018-07-31
Aspects described herein generally describe epoxy resins and methods of epoxy resin formation. In some embodiments, a resin includes the reaction product of one or more polythiols, one or more polyepoxides, one or more fillers and one or more amine catalysts. Polythiols have between two and about ten thiol moieties. Polyepoxides have between two and about ten epoxy moieties. One or more amine catalysts of the formula NR1R2R3, wherein each of R1, R2, and R3 is independently linear or branched C1-20 alkyl or two or more of R1, R2, and R3 combine to form cycloalkyl. The resin has a compressive strength of at least 14 ksi at 2% offset at 70° F. and at least 8 ksi at 2% offset at 190° F.