摘要:
Cationized hydroxyalkylcelluloses, which are highly compatible with surfactants, are represented by the following formula (I): wherein R1, R2 and R3 represent a hydrogen atom or a group represented by the formula CH2CH2OCH2CH (OH) CH2N+(CH3)Cl−, etc.; and “n” is a number of from 50 to 2,000; which have a mobility distribution (&Dgr;U) determined by electrophoresis ranging from 0.1×105 to 2.0×105 cm2/sec·V.
摘要:
A novel process for the purification of industrial effluents, wherein the effluents are brought into contact with cationically modified, cellulose-containing materials, the cationic constituent of which is bonded to the cellulose part via the grouping of the general formula--O--CH.sub.2 --N
摘要:
ADSORPTIVE CATIONIC CELLULOSE IS PREPARED BY INTRODUCING CATIONIC SUBSTITUENTS ONTO CELLULOSE IN AN ALKALINE AQUEOUS SOLUTION OF A SALT OF A STRONG ACID AND A STRONG BASE. THE DERIVATIZED CELLULOSE HAS A HIGH ADSORPTIVE CAPACITY FOR CERTAIN PROTEINACEOUS MATERIALS, E.G., ENZYMES.
摘要:
A method of preparing a lithium salt of carboxymethyl cellulose is provided. The method includes carrying out alkalization of cellulose in the presence of lithium hydroxide to generate an alkali product; and mixing the resulting product with a halogenated (e.g., halogen-including) acetic acid or a salt thereof to carry out etherification. An amine derivative is added to at least one of the alkalization or etherification.
摘要:
Provided is a cationic group-containing cellulose ether which, when incorporated in a hair wash, is able to give an excellent smoothness property and its sustained feeling, finger combability and coated feeling in rinsing, and which, when incorporated in a skin cleanser, is able to give an excellent moist feeling to the skin after washing, and also provided are a surfactant composition, a hair wash composition, a skin cleanser composition, a hair conditioner composition and a hair treatment composition containing the cationic group-containing cellulose ether.
摘要:
Non-ionic water-soluble cellulose ethers modified with 3-azido-2-hydroxypropyl groups bound via an ether link are provided having a molar degree of substitution MSAHP in the range from 0.001 to 0.50. Exemplary cellulose ethers are alkyl cell doses, including methyl, hydroxyalkyl (e.g. hydroxyethyl hydroxypropyl) or alkylhydroxyalkyl cellulose (e.g. methylhydroxyethyl). Reaction products with alkyne compounds are also provided, resulting in a terminal alkyne group. The reaction of azide with the alkyne proceeds as a 1,3-dipolar cycloaddition reaction, advantageously with Cu(I) or ruthenium catalysts. A multiplicity of cellulose ethers can be obtained from the conversion reaction. Variations in the macroscopic properties can be achieved by controlled modification, ranging from increased or reduced viscosity. The reaction, taking place within a few seconds, requires only minimal catalyst. Gel formation is reversible by adjustment of the pH such that a monophasic system (high-viscous fluid) arises again from a biphasic system (gel+low-viscous water phase).