Hydrofluorination of Oligoethylene Glycol Diglycidyl Ethers
作者:L. Aroua、A. Hedhli、A. Baklouti
DOI:10.1055/s-1999-3691
日期:1999.1
The ring-opening reaction of oligoethylene glycol diglycidyl ethers using three fluorinating reagents has been realized. High regioselectivity and the greatest yields of bisfluorohydrins were obtained with potassium hydrogen fluoride.
Multilayer printed circuit board and production thereof
申请人:HITACHI, LTD.
公开号:EP0449292A2
公开(公告)日:1991-10-02
A multilayer printed circuit board comprising a plurality of alternately laminated layers of insulating layers and circuit conductor layers having a signal transmission delay time of 6.0 ns/m or less, excellent in heat resistance, adhesive, fire retardance, etc. can be produced by forming insulating layers using a fluorine-containing thermosetting resin composition.
Carrier for immobilizing microorganisms, and method for converting nitrogen compounds in a liquid using the same
申请人:Matsumura, Masatoshi
公开号:EP0758680A2
公开(公告)日:1997-02-19
A carrier for immobilizing microorganisms, comprising a porous cellulose derivative or a porous cellulose, which has a good affinity for the microorganisms, can be applied to any liquid treatment tank without limiting use sites, and does not require a plant investment for immobilization of the microorganisms, and a method of converting nitrogen compounds in a liquid to be treated such as potable water or wastewater, by introducing the carrier together with the liquid to be treated into a liquid treatment tank such as a nitrification treatment tank or a denitrification treatment tank, thereby converting the nitrogen compounds contained in the liquid to be treated into harmless nitrogen compounds, are disclosed.
A resin composition comprising an epoxy compound denoted by the formula (1):
wherein Ar1, Ar2 and Ar3 are the same or different and each denotes any one of divalent groups denoted by the following formulas:
wherein R denotes a hydrogen atom or an alkyl group having 1 to 8 carbon atoms, and an epoxy compound denoted by the formula (2):
wherein R5 denotes a hydrogen atom or an alkyl group having 1 to 8 carbon atoms, and Q2 denotes a single bond or a straight-chain alkylene group having 1 to 8 carbon atoms.
Multifunctional polyamides for protective coatings
申请人:Huntsman Advanced Materials Americas LLC
公开号:US10414855B2
公开(公告)日:2019-09-17
The present disclosure relates to a curing agent component for a curable resin which includes a multifunctional polyamide obtained from the reaction of a polyamine and a polycarboxylic acid. The curing agent component may be used as part of a two component curable system for the curing of curable resins including epoxy resins.