Carbamates from Glycerine Carbonate for Pearlization
申请人:Evonik Industries AG
公开号:US20150044264A1
公开(公告)日:2015-02-12
Alkyl and/or alkenyl glycerol carbamate prepared by reacting a carbonate selected from the group consisting of glycerol carbonate, diglycerol carbonate, polyglycerol carbonate and mixtures thereof, with an amine of the general formula (I):
HNR
1
R
2
(I)
wherein R
1
represents a hydrogen atom or a hydrocarbon group selected from the group consisting of alkyl groups and alkenyl groups having from 1 to 22 carbon atoms and R
2
represents a hydrocarbon group selected from the group consisting of alkyl groups and alkenyl groups having from 4 to 22 carbon atoms, and cyclic alkyl groups having 5 or 6 carbon atoms, are described along with methods for their use as pearlizing agents in surface-active preparations.
Ethylenically unsaturated monomers for thickener compositions
申请人:Bobsein Barrett Richard
公开号:US20100286434A1
公开(公告)日:2010-11-11
New ethylenically unsaturated monomers are provided that can be (co)polymerized to provide a composition and method whereby the same group that is attached to or within the backbone of an associative thickener is reversibly switched between being hydrophilic and hydrophobic in nature. When the group that is attached to or within the backbone is rendered hydrophilic, the aqueous thickener is pourable and readily incorporated into aqueous polymer compositions. When this group is rendered hydrophobic, the thickener performs its thickening function efficiently. Switching is readily accomplished by adjusting the pH of the associative thickener composition and the aqueous polymer composition being thickened. The thickeners are prepared from the novel monomers by an aqueous solution polymerization.
AMINOMETHYL- SUBSTITUTED IMIDAZOLE COMPOUNDS FOR USE AS FRICTION MODIFIERS IN LUBRICATING OIL COMPOSITIONS
申请人:Suen Yat Fan
公开号:US20110136710A1
公开(公告)日:2011-06-09
Disclosed are aminomethyl-substituted imidazole compounds and their use as friction modifiers in lubricating oils. Also disclosed is a process for preparing the aminomethyl-substituted imidazole compounds. A further aspect is directed to a lubricating oil composition and a lubricating oil additive concentrate having the aminomethyl-substituted imidazole compounds of the present invention.
Thickener composition and method for thickening aqueous systems
申请人:Bobsein Barrett Richard
公开号:US20100261813A1
公开(公告)日:2010-10-14
A composition and method whereby the same group that is attached to or within the backbone of an associative thickener is reversibly switched between being hydrophilic and hydrophobic in nature. The group comprises a tertiary amine, or tertiary phosphine and has a hydrocarbon radical bonded to the amine nitrogen atom or phosphine phosphorus atom, which hydrocarbon radical is pendant to the backbone and contains fewer than 10 carbon atoms. When the group that is attached to or within the backbone is rendered hydrophilic, the aqueous thickener is pourable and readily incorporated into aqueous polymer compositions. When this group is rendered hydrophobic, the thickener performs its thickening function efficiently. Switching is readily accomplished by adjusting the pH of the associative thickener composition and the aqueous polymer composition being thickened.
Die Erfindung betrifft die Herstellung von aliphatischen und cycloaliphatischen Diaminen durch einen 2-Stufen-Prozeß. Hierbei werden in der 1. Stufe Dialdehyde mit Monoaminen zu den entsprechenden Diazomethinen umgesetzt. In der 2. Stufe werden diese Diazomethine mit Ammoniak und Wasserstoff in Gegenwart eines Hydrierkatalysators zur Umsetzung gebracht.