摘要:
The present invention relates to aqueous pigment pastes comprising hydrophobically modified polyaspartic acid derivatives as dispersants. The invention relates in particular to the use of hydrophobically modified polyaspartic acid derivatives as dispersants for preparing aqueous pigment pastes.
摘要:
The invention relates to a storage-stable, concentrated, aqueous surfactant composition comprisinga) 40 to 75% by weight of one or more alkylglucosides of the formulaR.sup.1 O--�G!.sub.p (I) whereinR.sup.1 is an alkyl radical having 6 to 22 C atoms, in particular 12 to 18 C atoms, andG is the glucoside radical andP is a number from 1 to 3,b) 1 to 15% by weight of a fatty acid,c) 0 to 5% by weight of an electrolyte of alkali metal or alkaline earth metal halides andd) 5 to 59% by weight of water.
摘要:
The present invention relates to organopolysiloxanes comprising polyhydroxyorganyl radicals, especially sugar radicals or sugar-derivative radicals, and polyoxyalkylene radicals, to processes for their preparation and to their use.
摘要:
Cosmetic or pharmaceutical preparations, which contain natural or synthetic oils having ester groups or mineral oils, are characterized by containing a selected organopolysiloxanes with long-chain alkyl or alkoxy groups for improving the spreading behavior of the oils, particularly on the human skin. The organopolysiloxanes are added to the oil in amounts of 0.003 to 20% by weight, based on the total weight of oil and organopolysiloxane.
摘要:
The invention relates to a method for the synthesis of organopoiysiloxanes of the general formula ##STR1## which contains cyclic carbonate groups. The inventive compounds have a high polarity, can be synthesized easily and, because of their compatibility with polar media, find use as additives for dispersion paints or lacquers and for coating the surfaces of pigments and fillers.
摘要:
Curable polysiloxanes having oxyalkylene vinyl ether groups linked through SiC groups are disclosed wherein the vinyl groups may be substituted by alkyl. Methods for producing these compounds and their use as preferably photochemically curable polysiloxanes in various products are also disclosed.
摘要:
A (meth)acrylate ester-modified organopolysiloxane composition, which is composed of several fractions of equilibrated (meth)acrylate ester-modified organopolysiloxanes that differ in the average number of silicon atoms in the mixture of molecules, is disclosed which contains60 to 95% by weight of a modified organopolysiloxane A having, on the average, 5 to 50 silicon atoms and5 to 40% by weight of a modified organopolysiloxane B having, on the average, at least 50 silicon atoms,with the proviso that the number of silicon atoms in the average molecule of the modified organopolysiloxane B is at least twice as large as the number of silicon atoms in the average molecule of the modified organopolysiloxane A. The organopolysiloxane mixtures have improved abhesive properties.
摘要:
A method is disclosed for coating sheet-like supports by applying curable organopolysiloxanes, which have been modified with (meth)-acrylate ester groups, on the surface of the support and curing the modified organopolysiloxanes by the action of polymerizing high-energy radiation. Polysiloxanes with hydroxy-functional groups are employed for this purpose, which are obtained by reaction with, based on the hydroxyl groups, 0.4 to 0.9 molar amounts of (meth)acrylic acid and up to 0.6 molar amounts of monocarboxylic acids, which are free of double bonds (sum of the acids.ltoreq.1 molar).
摘要:
A preparation for the abhesive coating of baking tins, baking molds, frying pans, metal pots and the like is disclosed. The preparation which comprises predominantly a heat-curable, polyol-modified polysiloxane A and 0.05 to 4% by weight, based on polysiloxane A, of a linear siloxane B that is capable of reacting with polysiloxane A. The modified polysiloxane A is obtained by reaction of a polysiloxane A1 of the general formula. ##STR1## wherein OR.sup.1 is an alkoxy group, derived from a primary or scondary alcohol with 1 to 4 carbon atoms,R.sup.2 is alkyl and/or phenyl,a=1 to 1.5,b=0.1 to 0.08,with a multihydric alcohol A2, with the characteristic feature that, as multihydric alcohol A2, is used an ester group-containing polyo of the general formula ##STR2## which can be obtained by the esterification of 1 mole of dicarboxylic acid HOOC--R.sup.7 --COOH with 2 moles of alcohol of formula R.sup.6 OH, the R.sup.6 groups in the molecule being the same or different and representing the groups ##STR3## wherein R.sup.7 is an alkylene, cycloalklene or phenylene group, and the polyol containing the ester groups has at least three hydroxyl groups.
摘要:
The use of fluorinated norbornylsiloxanes of the general formula ##STR1## in which R is a hydrocarbon radical with 1 to 6 carbon atoms or a phenyl radical;R.sup.1, R.sup.2, R.sup.3, R.sup.4 are the same or different and represent hydrogen or methyl radicals;R.sup.5, R.sup.6, R.sup.7, R.sup.8 are the same or different and represent hydrogen, fluorine radicals, hydrocarbon radicals with 1 to 8 carbon atoms, or fluorinated hydrocarbon radicals with 1 to 20 carbon atoms, in which at least one of the R.sup.5, R.sup.6, R.sup.7, R.sup.8 radicals must be a fluorine or a fluorinated hydrocarbon radical,Y is an organosiloxanyl radical,A is a divalent hydrocarbon radical or an oxygen radical, anda is 0, 1 or 2for defoaming freshly extracted degassing crude oil. The compounds are highly effective and show a broader area of application for defoaming degassing crude oils of different origins.