Abstract:
Described herein are hemi-aminal ethers and thioethers of N -alkenyl cyclic compounds that may be produced through a reaction comprising: (A) at least one first reactant represented by a structure (I), wherein X is a functionalized or unfunctionalized C 1 -C 5 alkylene group optionally having one or more heteroatoms, and each R 1 , R 2 , and R 3 is independently selected from the group consisting of hydrogen and functionalized and unfunctionalized alkyl groups optionally having one or more heteroatoms, and (B) at least one second reactant having at least one hydroxyl moiety or thiol moiety. The hemi-aminal ethers and thioethers of N -alkenyl cyclic compounds may comprise a polymerizable moiety, in which case they may be left as-is or used to create homopolymers or non-homopolymers, or they may not comprise a polymerizable moiety. A wide variety of formulations may be created using the hemi-aminal ethers and thioethers of N -alkenyl cyclic compounds, including personal care, oilfield, and construction formulations.
Abstract:
The present invention describes an advantageous and effective process for obtaining carboxymethyl cellulose (CMC) from agro-industrial residues, comprising the steps of a) Preparing the raw material, wherein the raw material is washed, dried, grounded and washed again; b) a pumping step, wherein the product obtained from the step a) is reacted with sodium hydroxide; c) a synthesis step, wherein consists in grounding the pulp; adding a solution of isopropanol and distilled water under stirring at room temperature; adding NaOH aqueous solution up to the alkalization of the mixture; adding monochloroacetic acid in isopropanol; filtrating; suspending in methanol solution and neutralizing with acetic acid. The present invention also relates to the CMC obtained from the said process which can be employed in a several industrial processes.
Abstract:
The present invention describes an advantageous and effective process for obtaining carboxymethyl cellulose (CMC) from agro-industrial residues, comprising the steps of a) Preparing the raw material, wherein the raw material is washed, dried, grounded and washed again; b) a pumping step, wherein the product obtained from the step a) is reacted with sodium hydroxide; c) a synthesis step, wherein consists in grounding the pulp; adding a solution of isopropanol and distilled water under stirring at room temperature; adding NaOH aqueous solution up to the alkalization of the mixture; adding monochloroacetic acid in isopropanol; filtrating; suspending in methanol solution and neutralizing with acetic acid. The present invention also relates to the CMC obtained from the said process which can be employed in a several industrial processes.
Abstract:
Disclosed is a pharmaceutical composition having a prophylactic or therapeutic effect on a conformational disease such as Alzheimer's disease, prion disease and amyloidosis. The pharmaceutical composition comprises, as an active ingredient, at least one cellulose ether selected from a cellulose ether having a constitutional unit represented by the general formula (1) shown below, an alkali metal salt of the cellulose ether, an aliphatic acid ester of the cellulose ether, and a mixture thereof. (1) wherein at least one of R's is selected from CH 3 , C 2 H 5 , CH 2 CH 2 OH, CH 2 CH(OH)CH 3 and CH 2 COOM, and the others are independently represent H; and M is selected from H, Na, K and Ca.
Abstract:
The present invention relates to a method for preparing fine powdered cellulose ethers. In particular, the present invention relates to a method for preparing cellulose ethers in a cost-effective manner having high running efficiency of process, which comprises specifically regulating a reaction condition of each step to induce a particle refinement and significantly reduce a running load on a grinding process, in the reaction of treating finely pulverized celluloses with a caustic soda and reacting with an etherifying agent.
Abstract:
The present invention relates to a graft copolymer, which comprises polysaccharides as a backbone and monomers, containing a phosphorylcholine-like group, as a secondary chain. The present invention also relates to a composition comprising said copolymer as an active ingredient for skin or hair care. The graft copolymer of the present invention uses compounds containing a phosphorylcholine-like group, thus exhibiting improved moisturizing effects and superior biocompatibility as compared to existing polysaccharide-based graft copolymers. Therefore, the composition for skin or hair care comprising the graft copolymer of the present invention may also exhibit improved moisturizing effects, superior protective properties for damaged hair, improved affinity to the skin, effects in improving the skin barrier function, etc.
Abstract:
A water-borne coating composition containing an ether derivative of raw cotton linters (RCL), a latex polymer, and water in which the ether derivative RCL provides improved rheological properties when compared to analogous cellulose ether compounds produced from more refined cellulose sources while not substantially degrading the coating composition's aesthetic qualities.
Abstract:
A composition of a loose mass of comminuted raw cotton linter fibers has a bulk density of at least 8 g/100 ml and at least 50 % of the fibers in the mass passes through a US standard sieve size #10 (2 mm opening). This composition is made by obtaining a loose mass of first cut, second cut, third cut, or mill runs raw cotton linters or mixtures thereof and comminuting the loose mass of raw cotton linters to a size wherein at least 50 % pass through a US standard sieve size #10 (2 mm opening). This composition is used to make cellulose ether derivatives.