Abstract:
Improved composition of a fixing cream, in particular for tooth prostheses, containing at least one oil and/or fat, preferably of a plant type, at least one water-soluble polymer selected from the group of cellulose derivatives, at least one alkyl vinyl ether/maleic acid anhydride copolymer, the fatty acid content of the plant oil or fat contained consisting of at least 20% by weight of unsaturated fatty acids.
Abstract:
Provided is a polymer film containing at least one of a compound represented by formula (1) of hydrates, solvates, or salts thereof. Y is a methine group or nitrogen atom. Qa, Qb, and Qc are a single bond or a divalent linking group. Ra, Rb, and Rc, are hydrogen atom, alkyl group, alkenyl group, alkynyl group, aryl group, cyano group, halogen group, or heterocyclic group. X2 is a single bond or a divalent linking group. X1 is a single bond or a predetermined divalent linking group. R1 and R2 are a hydrogen atom, alkyl group, alkenyl group, alkynyl group, aryl group, or heterocyclic group.
Abstract:
The present invention provides a Ge adsorbent for a 68Ge—68Ga generator, which is a polysaccharide polymer having a glucamine group represented by the formula (1) or the formula (2), wherein R1 is a hydrogen atom or an alkyl group, and * is a bonding position.
Abstract:
The invention relates to a composite system comprising at least one biodegradable blend, containing at least one biodegradable block copolyester urethane (PEU) and also at least one polyhydroxyalkanoate (PHA), possibly a filler comprising a polysaccharide and/or derivatives thereof and also possibly further biocompatible additives. Composite systems of this type are used for producing molded articles, molded parts or extrudates. Furthermore, the invention relates to possibilities for using the composite system.
Abstract:
The present invention relates to latex compositions comprising hydroxyethyl cellulose grafted acrylic polymer emulsions and methods for preparing same without gelling or coagulation. The latex composition comprises at least about 0.2% of HEC by weight relative to the monomer weight, contains at least about 45% solid, and the average mean volume (mV) latex particle size is in the range of about 320-about 850 nm. Paint compositions incorporating the HEC grafted acrylic latex show high viscosity at static conditions and have no color flow and no syneresis compared paints containing a latex without HEC grafting. The present invention also relates to a cross-linking mechanism that cross-links latex particles at ambient conditions. This cross-linking mechanism comprises diacetone acrylamide (DAAM) and methacrylamide (MAM) with or without styrene.
Abstract:
Methods for increasing one or more barrier properties of a sheet of paper or paperboard, which method comprises (a) preparing a dispersion having a cationic zeta potential by combining (1) a mixture containing one or more anionic pigments with (2) one or more polyamine-epihalohydrin cationic wet strength resins; (b) coating at least one side of the sheet of paper or paperboard with the dispersion at a coating weight of from about 0.1 g/m2 to about 20 g/m2; (c) drying the coated sheet of paper or paperboard; (d) coating the dried sheet of paper or paperboard with a functional barrier top coating formulated to provide resistance to one or more of the following (1) liquid water, (2) water vapor, (3) oil, (4) grease, (5) gas permeability, (6) skid, or (7) static. Also claimed are dispersions used in the methods, which dispersions have a cationic zeta potential for use as a preliminary coating on a sheet of paper or paperboard in advance to a functional barrier top coating, which dispersions comprise: (a) a mixture containing: (i) one or more anionic pigments in an amount of at least about 20% dry weight of the anionic pigment-containing mixture, (ii) one or more neutral or cationic water soluble binders in an amount up to about 80% dry weight of the anionic pigment-containing mixture, and (b) one or more polyamine-epihalohydrin cationic wet strength resins in a weight ratio of resin:anionic pigment from about 0.03:1 to about 0.8:1.
Abstract translation:提高一张纸或纸板的一种或多种阻隔性能的方法,该方法包括(a)通过将(1)含有一种或多种阴离子颜料的混合物与(2)一种或多种阴离子颜料混合来制备具有阳离子ζ电位的分散体 多胺 - 表卤代醇阳离子湿强度树脂; (b)以约0.1g / m 2至约20g / m 2的涂层重量涂覆该纸或纸板的至少一面与分散体; (c)干燥涂布的纸或纸板; (d)用干燥的纸或纸板涂覆功能性阻隔面涂层,其被配制成对以下(1)液态水中的一种或多种,(2)水蒸气,(3)油,(4)润滑脂, (5)透气性,(6)防滑,或(7)静电。 还要求的是在方法中使用的分散体,其分散体具有阳离子ζ电位,用作预先在功能性屏障顶涂层上的纸或纸板上的预涂层,该分散体包含:(a)含有:( i)一种或多种阴离子颜料的含量为至少约20%的含阴离子颜料的混合物的干重,(ii)一种或多种中性或阳离子水溶性粘合剂,其量至多约80% 含有阴离子颜料的混合物,和(b)一种或多种多胺 - 表卤代醇阳离子湿强度树脂,其树脂:阴离子颜料的重量比为约0.03:1至约0.8:1。
Abstract:
The present invention relates to a composition in the fluid form intended to form a dressing on the skin. This composition comprises from 6% to 12% by weight of the total weight of the composition of a cellulose derivative, from 5% to 15% by weight of the total weight of the composition of a vegetable oil, and a volatile solvent. The oil/cellulose ratio by weight is between 0.8 and 1.5.This novel dressing base makes it possible to obtain a film on the skin having satisfactory resistances to water and to rubbing actions. The film is flexible and sufficiently comfortable, in particular when the dressing is applied to a fairly extensive area of the skin.
Abstract:
A method for preparing a specific product from a polysaccharide in which at least one hydroxyl of a saccharide unit is substituted with an ether or ester moiety. The ether or ester moiety is provided with ethenyl and/or epoxy functionality for preparing an activatable polysaccharide polymer and the activatable polysaccharide polymer with ethenyl and/or epoxy functionality is optionally reacted with an additional coupling reagent, having at least two coupling functionality for preparing polysaccharide polymer with additional activatable crosslinker. Thereafter, the activatable polysaccharide polymer or the polysaccharide polymer with an additional activatable crosslinker, is activated for crosslinking the polysaccharide polymer with another polysaccharide polymer by reacting the activatable polysaccharide polymer or polysaccharide polymer with an additional activatable crosslinker with a crosslinking initiator for crosslinking the polysaccharide polymer chains with each other, for preparing a product such as hydrogel, film, coating or membrane with polysaccharide backbone.
Abstract:
A process for improving the flow rate of an aqueous dispersion which comprises adding a natural polymer to said aqueous system and then adding a synthetic polymer to the aqueous system.
Abstract:
In one aspect, there is provided a compound comprising an acetylated carboxymethylcellulose (CMC-Ac) covalently linked to: at least one poly(ethylene glycol) (PEG), and at least one hydrophobic drug. In another aspect, a self-assembling nanoparticle composition comprising such compounds is provided.