CAS: 3327-22-8; Dextrosil Ka

相似化合物

101396-91-2 117604-42-9 55636-09-4

专利信息

专利号:US-8541571-B2
优先权日:2008-03-03
标题:Homogeneous synthesis of cellulose ethers in ionic liquids
发明人：MOELLMANN EUGEN; HEINZE THOMAS; LIEBERT TIM; KOEHLER SARAH
权利人:MOELLMANN EUGEN; HEINZE THOMAS; LIEBERT TIM; KOEHLER SARAH; SE TYLOSE GMBH & CO KG
摘要:The invention is directed to a simple and new method for the homogeneous synthesis of cellulose ethers. Ionic liquids are not only used as solvent, but also as reaction media for the homogeneous etherification of cellulose. The dissolved cellulose is treated with the etherification agent in the absence of organic and/or inorganic bases and in the absence and/or in the presence of moderate amounts of water. The obtained cellulose ethers show new distributions of substitution on the polymer chain, resulting in new properties and applications.

专利号:US-9950319-B2
优先权日:2014-07-15
标题:High exchange-capacity anion exchange resin with dual functional-groups and method of synthesis thereof
发明人：WANG JINNAN; WANG YI; YANG XIN; CHENG CHENG; CHEN CHEN
权利人:NANJING UNIVERSITY OF TECHNOLOGY; NANJING UNIV YANCHENG ENVIRONMENTAL PROTECTION TECH AND ENGINEERING RESEARCH INST; NANJING UNIV YANCHENG ENVIRONMENTAL PROTECTION TECHNOLOGY AND ENGINEERING RESEARCH INSTITUTE
摘要:The present disclosed are a high exchange-capacity anion exchange resin with dual functional-groups and method of synthesis thereof. The invention relates to the field of environmental function material synthesis and application. The resin is based on chloromethylated polystyrene-divinylbenzene polymer as matrix, and by primary amination and quaternization, yields an anion exchange resin with dual functional-groups having both a weak base anionic group and a strong base anionic group. The anion exchange resin not only has high adsorption capacity for water-born nitrate ions, but also can effectively squelch natural organic acids such as phytic acid in water, thus simultaneously removing nitrate ions and phytic acid organic matter from water. Therefore, the resin has a broad application potential in the fields of drinking water treatment, groundwater remediation, and advanced urban sewage treatment.

专利号:US-4988806-A
优先权日:1988-06-13
标 题:Nitrogen-containing derivatives of carboxymethylcellulose, their synthesis and their use in cosmetic preparations
发明人：GRUENING BURGHARD; HOFFMANN KLAUS; KOERNER GOETZ; KOLLMEIER HANS-JOACHIM
权利人:GOLDSCHMIDT AG TH
摘要:Derivatives of carboxymethylcellulose are disclosed in which all or a portion of the carboxymethyl groups are replaced by groups of the general formula in which R1 is a hydrogen or methyl group, R2 is a divalent aliphatic hydrocarbon group with 2 to 5 carbon atoms, R3, R4 are alkyl groups with 1 to 4 carbon atoms, R5 is an alkyl group with 1 to 4 carbon atoms or a benzyl group, X is a halogen or sulfate group or a sulfonic acid group, with the proviso that, on the average, at least 0.1 quaternary ammonium groups are contained per anhydroglucose unit of the polymeric molecule. The invention furthermore relates to derivatives of carboxymethylcellulose, in which all or a portion of the carboxymethyl groups are replaced by groups of the general formula in which the substituents R1, R2, R3 and R4 have the above meaning, with the proviso that, on the average, at least 0.1 tertiary amino groups are contained per anhydroglucose unit of the polymeric molecule, as intermediates for the synthesis of the aforementioned derivatives. The invention furthermore is directed to a method for the synthesis of the derivatives of carboxymethylcellulose and their use in cosmetic preparations, especially for the care of hair.

专利号:US-5243072-A
优先权日:1988-06-13
标 题:Betaine group-containing polysaccharides with recurring anhydroglucose units, their synthesis and their use in cosmetic preparations
发明人：GRUENING BURGHARD; HOFFMANN KLAUS; KOERNER GOETZ; KOLLMEIER HANS-JOACHIM
权利人:GOLDSCHMIDT AG TH
摘要:Betaine group-containing polysaccharides with recurring anhydroglucose units of the average, general formula are disclosed. In this formula the R1 groups are the same or different and represent methyl, in which n=2 or 3, m=0 to 10, p=0 to 10 and R2 is a hydrogen atom or the betaine group in which R3 and R4 are the same or different and represent an alkyl group with 1 to 4 carbon atoms and R5 is a divalent aliphatic hydrocarbon group with 1 to 10 carbon atoms, with the proviso that at least 0.5% of the R1 groups in the polysaccharide molecule represent the betaine group. Also disclosed is a method for the synthesis of these compounds and their use in cosmetic preparations, expecially for the care of the hair. In addition, novel compounds of the general formula are disclosed as intermediates in which the substituents R3, R4 and R5 have the above meaning.

专利号:US-5124446-A
优先权日:1988-06-13
标题 :Betaine group-containing polysaccharides with recurring anhydroglucose units, their synthesis and their use in cosmetic preparations
发明人：GRUENING BURGHARD; HOFFMANN KLAUS; KOERNER GOETZ; KOLLMEIER HANS-JOACHIM
权利人:GOLDSCHMIDT AG TH
摘要:Betaine group-containing polysaccharides with recurring anhydroglucose units of the average, general formula are disclosed. In this formula the R1 groups are the same or different and represent methyl, (CnH2nO)mR2 or in which n=2 or 3, m=0 to 10, p=0 to 10 and R2 is a hydrogen atom or the betaine group in which R3 and R4 are the same or different and represent an alkyl group with 1 to 4 carbon atoms and R5 is a divalent aliphatic hydrocarbon group with 1 to 10 carbon atoms, with the proviso that at least 0.5% of the R1 groups in the polysaccharide molecule represent the betaine group. Also disclosed is a method for the synthesis of these compounds and their use in cosmetic preparations, especially for the care of the hair. In addition, novel compounds of the general formula are disclosed as intermediates in which the substituents R3, R4 and R5 have the above meaning.

专利号:US-10465033-B2
优先权日:2016-11-10
标题:One step synthesis of ultrahigh molecular weight block copolymers
发明人：URBAN MAREK W
权利人:UNIV CLEMSON; UNIV CLEMSON RES FOUNDATION
摘要:Single-step synthesis processes for production of ultrahigh molecular weight block copolymers are described. The ultrahigh molecular weight copolymers can have a molecular weight of about 10 6 or greater and can be formed within a few hours in a surfactant-free environment. The formation process is controlled by initiator-starvation conditions in a sequential polymerization of monomers exhibiting different solubility in the solvent.