摘要:
Reaction products of maleic anhydride and/or itaconic anhydride with one or more olefinically-unsaturated fatty compounds as compatibilizers for cellulose/plastic composites.
摘要:
A process for the production of cellulose/plastic composites, characterized in that cellulose, more particularly wood, a plastic, more particularly polyvinyl chloride, a compatibilizer containing carboxylic anhydride groups, and a catalyst from the group of heteroaromatic compounds are combined, mixed together, preferably at a temperature in the range from 50° to 130° C., and the dry blend obtained is subsequently heated to a temperature above the melting temperature of the plastic, subjected to the desired shaping process, and allowed to cool.
摘要:
The present invention relates to a process for the preparation of a polyurethane, comprising the process steps: i) provision of a polyisocyanate component comprising at least one polyisocyanate; ii) provision of a polyol component comprising at least one polyether polyol, one polyester polyol or a mixture of a polyether polyol and a polyester polyol, wherein the polyol component comprises a polyol ester of a polyol and a monocarboxylic acid; iii) bringing of the polyisocyanate component into contact with the polyol component to form a polyurethane.
摘要:
The present invention relates to a process for the preparation of a polyurethane, comprising the process steps: i) provision of a polyisocyanate component comprising at least one polyisocyanate; ii) provision of a polyol component comprising at least one polyether polyol, one polyester polyol or a mixture of a polyether polyol and a polyester polyol, wherein the polyol component comprises a polyol ester of a polyol and a monocarboxylic acid; iii) bringing of the polyisocyanate component into contact with the polyol component to form a polyurethane.
摘要:
An aqueous concentrate of a tenside of the sulfate and sulfonate type containing at least about 20% by weight of a water-soluble salt of at least one anionic tenside selected from the group consisting of alkyl polyalkylene ether glycol sulfates, alkaryl polyalkylene ether glycol sulfates, alkyl polyalkylene ether glycol sulfosuccinates, alkaryl polyalkylene ether glycol sulfosuccinates, alkyl sulfates, alkaryl sulfonates and alkyl sulfosuccinates and a viscosity reducing amount of a water-soluble salt of a polyglycol ether sulfate selected from the group consisting of monosulfates of polylower alkylene ether glycols having a molecular weight of at least 600, disulfates of poly-lower alkylene ether glycols having a molecular weight of at least 600 and mixtures thereof and from 0 to a viscosity reducing amount of a poly-lower alkylene ether glycol having a molecular weight of at least 1,500; as well as the process of improving the flow behaviour of difficultly pourable aqueous concentrates of at least one tenside of the sulfate and sulfonate type comprising employing as a viscosity reducing compound a water-soluble salt of a mono- or disulfate of a poly-lower alkylene ether glycol.
摘要:
Bis-semiesters of sulfosuccinic acid with polyether diols based on ethylene oxide/propylene oxide and/or their alkali metal and/or ammonium salts as surfactants, i.e., agents for reducing the surface tension of aqueous substrates such as water or aqueous solutions, as dispersants, wetting agents and leveling agents. Another aspect of the invention relates to the use of such bis-semiesters and/or such salts as emulsifiers in the emulsion polymerization of water insoluble monomers.
摘要:
An aqueous concentrate of a tenside of the sulfate and sulfonate type containing at least about 20% by weight of a water-soluble salt of at least one anionic tenside selected from the group consisting of alkyl polyalkylene ether glycol sulfates, alkaryl polyalkylene ether glycol sulfates, alkyl polyalkylene ether glycol sulfosuccinates, alkaryl polyalkylene ether glycol sulfosuccinates, alkyl sulfates, alkaryl sulfonates and alkyl sulfosuccinates and a viscosity reducing amount of a water-soluble salt of a polyglycol ether sulfate selected from the group consisting of monosulfates of poly-lower alkylene ether glycols having a molecular weight of at least 600, disulfates of poly-lower alkylene ether glycols having a molecular weight of at least 600 and mixtures thereof and from 0 to a viscosity reducing amount of a poly-lower alkylene ether glycol having a molecular weight of at least 1,500; as well as the process of improving the flow behavior of difficultly pourable aqueous concentrates of at least one tenside of the sulfate and sulfonate type comprising employing as a viscosity reducing compound a water-soluble salt of a mono- or disulfate of a poly-lower alkylene ether glycol.
摘要:
The flow behavior of aqueous surfactant concentrates containing at least 20 wt. % of water-soluble salts of alkylpolyglycolether sulfosuccinates and/or alkylarylpolyglycolether sulfosuccinates is improved by adding to these concentrates at least one of the following viscosity regulators: a lower polyalkyleneether glycol having a molecular weight of at least about 1500; a water-soluble salt of a monosulfosuccinate of a lower polyalkyleneether glycol having a molecular weight of at least about 600; and a water-soluble salt of a disulfosuccinate of a lower polyalkyleneether glycol having a molecular weight of at least about 600.
摘要:
Compositions and processes for the aqueous emulsion polymerization of ethylenically unsaturated monomers using mixed emulsifiers containing(a) about 99.5 to about 10 parts by weight of an .alpha.-sulfocarboxylic acid alkyl ester containing from 8 to 24 carbon atoms in the carboxylic acid portion and from 1 to 4 carbon atoms in the alcohol portion, and(b) from about 0.5 to about 90 parts by weight of an .alpha.-sulfocarboxylic acid containing from 8 to 24 carbon atoms, and if desired,other anionic and/or non-anionic emulsifiers and/or protective colloids; the mixed emulsifier optionally being completely or partly present in salt form.