[EN] HARDENERS FOR THERMOSETTABLE RESIN COMPOSITIONS<br/>[FR] DURCISSEURS POUR COMPOSITIONS DE RÉSINE THERMODURCISSABLE
申请人:DOW GLOBAL TECHNOLOGIES LLC
公开号:WO2011146106A1
公开(公告)日:2011-11-24
A multifunctional aromatic amine hardener composition including the reaction condensation product of (a) at least one aniline and (b) at least one non-aromatic cyclic dicarboxaldehyde; and a reactive thermosettable resin composition including (i) at least one multifunctional aromatic amine hardener composition curing agent, (ii) at least one thermoset resin, and optionally (c) at least one catalyst; and a process for preparing a thermoset product from the thermosettable composition. The hardener composition above and a thermoset resin may be used to prepare a thermoset product with improved thermo- mechanical behavior.
spectroscopic detection of catalytically active intermediates. Using this new system, a large variety of substrates were hydroformylated in scCO2 with rates and enantioselectivities comparable to those of the parent system in benzene solution. At the same time, the CO2-philic substitution pattern resulted in a significantly higher regioselectivity towards the desired chiral aldehydes. Preliminary results indicated
AMBIENT TEMPERATURE CURABLE ISOCYANATE-FREE COMPOSITIONS FOR PREPARING CROSSLINKED POLYURETHANES
申请人:ARGYROPOULOS John N.
公开号:US20110313091A1
公开(公告)日:2011-12-22
The present invention provides a multicomponent composition that is substantially isocyanate-free and comprises a polycarbamate as a first component and a polyaldehyde or an acetal or hemiacetal thereof as a second component and further comprises an effective amount of a triggering agent such that the first and second components to cure at a temperature of from 0 C. to less than 80 C. to form a crosslinked polyurethane. The multicomponent composition forms an ambient temperature curable composition when all of its components are combined that has a pH of 7.0 or less. The present invention also provides processes crosslinked polyurethanes, and the crosslinked polyurethanes prepared by the processes.
CROSSLINKABLE COMPOSITION AND METHOD OF PRODUCING THE SAME
申请人:Dow Global Technologies LLC
公开号:US20130165581A1
公开(公告)日:2013-06-27
The instant invention provides crosslinkable compositions, and method of producing the same. The non-aqueous single phase crosslinkable composition comprises: (a) a polyol having an average of 2 or more hydroxyl functional groups; (b) polyaldehyde, or acetal or hemiacetal thereof; and (c) an acid catalyst having pK of less than 6; and (d) optionally one or more organic solvents.
CROSSLINKABLE COATING COMPOSITION AND METHOD OF PRODUCING THE SAME
申请人:DOW GLOBAL TECHNOLOGIES LLC
公开号:US20140371388A1
公开(公告)日:2014-12-18
The instant invention provides a crosslinkable coating composition, and method of producing the same. The crosslinkable coating composition according to the present invention comprises: (a) one or more polycarbamates derived from one or more polyesters comprising the condensation reaction product of one or more polyols with one or more polyacids, wherein said one or more polyols comprise at least 25 percent by weight of one or more units having 4 or more hydroxyl groups; (b) one or more crosslinking agents; (c) one or more acid catalysts; and (d) optionally one or more organic solvents.