摘要:
The present invention relates to a dispersion comprising (i) at least one liquid polymer and (ii) at least one polymer particle mixture comprising at least one meltable solid and at least one copolymer (C), wherein said at least one copolymer (C) is a random copolymer synthesized from at least one α,β-ethylenically unsaturated monomer and at least one polymerizable polymer of the class of liquid polymers according to (i), to processes for preparing this dispersion, to the use of this dispersion to prepare polyurethanes, and to a process for preparing polyurethanes, in which at least one such dispersion is reacted with at least one polyisocyanate.
摘要:
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.
摘要:
A fluidizing admixture for use with sprayable cementitious compostions, the admixture consists of 2-phosphonobutane-1,2,4-tricarboxylic acid and at least one selected polymer derived from ethylenically-unsaturated mono- or dicarboxylic acids. Citric acid may optionally be present. The admixture has good fluidizing properties and outstanding shelf-life.
摘要:
The invention relates to a polymer composition containing 5 to 95% by weight of a copolymer H and 2 to 60% by weight of a copolymer K, the copolymers H and K each having polyether macromonomer structural units and acid monomer structural units, which are present in the copolymers H and K in each case in a molar ratio of 1:20 to 1:1, and at least 20 mol % of all structural units of the copolymer H and at least 25 mol % of all structural units of the copolymer K being present in each case in the form of acid monomer structural units, the polyether macromonomer structural units of the copolymer H having side chains containing in each case at least 5 ether oxygen atoms, the number of ether oxygen atoms per side chain of the polyether macromonomer structural units of the copolymer H varying in such a way that the corresponding frequency distribution diagram, in which the number of ether oxygen atoms per side chain of a polyether macromonomer structural unit is plotted along the abscissa and the associated frequency for the copolymer H is plotted along the ordinate, contains at least 2 maxima.
摘要:
The invention relates to a polymer composition containing 3 to 90% by weight of a copolymer H and 3 to 90% by weight of a copolymer K, the copolymers H and K each having polyether macromonomer structural units and acid monomer structural units, which are present in the copolymers H and K in each case in a molar ratio of 1:20 to 1:1, and at least 20 mol % of all structural units of the copolymer H and at least 25 mol % of all structural units of the copolymer K being present in each case in the form of acid monomer structural units, at least 60 mol % of the polyether macromonomer structural units of the copolymer H being represented by the isoprenol polyether derivative structural units and at least 60 mol % of the polyether macromonomer structural units of the copolymer K being represented by the vinyloxy polyether derivative structural units.
摘要:
The present invention relates to a denture adhesive article comprising: a) a safe and effective adhesive amount of a water soluble denture adhesive component; b) a safe and effective amount of a component selected from the group consisting of a water soluble plasticizer, a water soluble carrier, and mixtures thereof; wherein the article is bioerodible; and wherein the article has dry tack.
摘要:
According to an aspect of the present invention, implantable or insertable medical devices are provided, which contain one or more polymeric regions, which in turn contain at least one block copolymer. The block copolymer includes (a) at least one high Tg (glass transition temperature) polymer block that contains at least one high Tg vinyl ether monomer and (b) at least one low Tg polymer block that contains at least one low Tg vinyl ether monomer.
摘要:
To provide a medical treatment device wherein the antithrombotic property and lubricity of a coating formed on the surface can be maintained in a stable state for a long period and also to provide a method for manufacturing the same. A mixture solution for coating wherein a copolymer of methyl vinyl ether with maleic acid anhydride, a quaternary ammonium salt and a polyether block amide dissolved in an organic solvent are applied upon the surface of a substrate comprising synthetic resin to form a coating and then urokinase and heparin are impregnated in the coating of the medical treatment device. The synthetic resin comprising the substrate is polyurethane, polyvinyl chloride, nylon or nylon elastomer. The quaternary ammonium salt is tridodecylmethylammonium chloride. An alkaline treatment is applied to a predetermined part of a substrate upon which a coating has been formed by application of the mixture solution.
摘要:
The present invention provides a foamed and/or aerated substrate for transmucosal and/or transdermal applications. The foamed and/or aerated substrate may be in the form of a film, sheet, strip or wafer. The foamed and/or aerated substrate is suitable for use in applications such as, for example, adhesive denture liners, tooth whitening, and smoking control/cessation. The foamed and/or aerated substrate is polymeric in nature and comprises one or more polymers and one or more foaming agents. Additionally, the foamed and/or aerated substrate may include, but not limited to, one or more plasticizers, hydrophobic barrier agents, tooth whitening agents, antioxidants, preservatives, super-disintegrants or absorbents, flavorants, deodorants, breath freshening agents, colorants, surfactants, film modifiers, cross-linking agents, antimicrobial agents, control release agents, other therapeutic agents, or any combinations thereof.
摘要:
Stable and substantially filled cationic dental compositions are described which include: (1) at least one cationically reactive compound (A); (2) at least one dental filler (B); (3) optionally, at least one dispersant (C) composed of at least one organic polymer or copolymer; (4) at least one cationic photoinitiator (D); and (5) optionally, at least one photosensitizer (E). The dental filler (B) is treated with at least one organosilicon coupling agent (F), and at least one compound (G). The organosilicon coupling agent (F) has at least one reactive function (rfA) directly linked to a silicon atom forming after activation of a chemical bond with the dental filler, and at least one reactive function (rfB) not directly linked to a silicon atom, forming after activation, a chemical bond with a reactive function (rfC) of the compound (G).