摘要:
Members of the TGF-β superfamily control many physiologic and pathophysiologic processes in multiple tissues and signal via type II and type I receptor serine kinases. Type II activin receptors are promiscuous and known to bind 12 TGF-β ligands including activins, myostatin, BMPs and nodal. Methods are described for the screening and identification of antagonist for TGF-β superfamily members, in particular activin-A antagonist.
摘要:
The present invention relates to a novel process for preparing alkyl polycarboxylates from an aqueous solution of an ammonium salt of the polycarboxylic acid by reactive distillation, and to a process for hydrogenating the alkyl carboxylates prepared in this way.
摘要:
Optical recording mediums comprising a substrate and a recording layer and a light transmitting layer sequentially disposed on the substrate; wherein the substrate comprises one or more parts selected from the group consisting of injection molded parts, injection molded sandwich structures having a molded surface layer and a molded core layer or two injection molded parts which are UV-bonded, and combinations thereof; and wherein the substrate has a Young's modulus E of at least 2.15 GPa and a Q factor of lower than 160 measured at 25° C. at 2000 Hz in accordance to ASTM E 756-05.
摘要翻译:包括基板和记录层的光记录介质和顺序地设置在基板上的透光层; 其特征在于,所述基板包括选自注射成型部件,具有模制表面层的注射成型夹层结构和模制芯层或两个UV结合的注射成型部件的一个或多个部件及其组合; 并且其中所述基材的杨氏模量E至少为2.15GPa,Q值低于160,根据ASTM E 756-05在25℃下以2000Hz测量。
摘要:
The present invention relates to a process for preparing low-viscosity reaction products of polyisocyanates containing activated, ethylenically unsaturated groups which react, with polymerization, on exposure to actinic radiation.
摘要:
The present invention relates to the use of mycophenolic acid, a salt or prodrug thereof in immunosuppression, particularly for prevention or treatment of transplant rejection and immune-mediated and/or inflammatory diseases, wherein mycophenolic acid, the salt or the prodrug thereof is administered with an initial intensified dosage regimen.
摘要:
Process for preparing binders including reacting A) one or more NCO-functional compounds containing uretdione groups with B) one or more compounds containing groups capable of participating in polymerization reaction with ethylenically unsaturated compounds on exposure to actinic radiation, and contain isocyanate-reactive groups, followed by C) reaction with one or more hydroxyl-containing compounds other than B), wherein at least one of these compounds has an OH functionality of≧2, D) in the presence of one or more compounds containing phenoxide groups, as catalysts, and E) optionally auxiliaries and additives, where the reaction with compounds of component C) proceeds at least proportionally with the formation of allophanate groups and where and including binders containing allophanate groups and groups capable of participating in a polymerization reaction with ethylenically unsaturated compounds on exposure to actinic radiation, and optionally also contain NCO-reactive groups. The binders are used in coating compositions used to coat substrates.
摘要:
The present invention relates to a novel process for the preparation of polyaddition products, to the products obtainable by this process and to their use as starting components in the production of polyurethane plastics. The process includes the reaction of A) polyisocyanates with uretdione groups having a mean isocyanate functionality of at least 2.0, optionally with the concomitant use of B) other diisocyanates and/or polyisocyanates, different from A, in an amount of up to 70 wt. %, based on the total weight of components A) and B), with C) polyols in the molecular weight range 62-2000 having a mean functionality of at least 2.0, or mixtures of polyols and optionally D) other isocyanate-reactive monofunctional compounds in an amount of up to 40 wt. %, based on the total weight of components C) and D). An equivalent ratio of isocyanate groups to isocyanate-reactive groups of 1.8:1 to 0.6:1 is maintained in the reactants, and the reaction is carried out in the presence of at least one bismuth-containing catalyst.
摘要:
The present invention relates to water-free and cosolvent-free binder compositions A) containing of a mixture of A1) at least one emulsifier-free, hydrophobic binder containing groups which can be polymerized by high-energy radiation and A2) at least one hydrophilic unsaturated polyester resin containing the reaction product of a) at least one unsaturated dicarboxylic acid and/or an anhydride thereof, b) at least one polyalkylene oxide compound having a number average molecular weight of 106 to 2000, at least 2 hydroxyl end groups and at least 2 oxyalkylene units, wherein at least 50% of the oxyalkylene units are oxyethylene units, and c) at least one hydroxy-functional compound containing at least one polymerizable unsaturated group per molecule selected from vinyl, allyl, methacrylic and acrylic groups. The present invention also relates to aqueous dispersions containing the binder compositions A), to a process for preparing an aqueous dispersion containing the binder dispersion, to a process for diluting the binder composition with tap water, to producing coatings from the aqueous dispersions and to the use of the binder compositions for preparing coating, adhesive or sealant compositions.
摘要:
The invention provides innovative blocked polyisocyanates whose crosslinking is initiated thermally and photochemically. The polyisocyanates comprise at least one thermally reversibly blocked NCO group whose blocking agent contains at least one group which on exposure to actinic radiation reacts, with polymerization, with ethylenically unsaturated compounds. A process for preparing the polyisocyanates, and their use in binders, is also provided.
摘要:
The invention relates to a process for preparing binders which contain 1) allophanate groups, 2) groups that react with ethylenically unsaturated compounds with polymerization on exposure to actinic radiation (radiation-curing groups) and 3) optionally NCO-reactive groups, by reacting at temperatures ≦130° C. A) one or more NCO-functional compounds containing uretdione groups with B) one or more compounds that contain isocyanate-reactive groups and groups that react with ethylenically unsaturated compounds with polymerization on exposure to actinic radiation (radiation-curing groups), and then C) with one or more saturated, hydroxyl-containing compounds other than B), at least one of these compounds having an OH functionality of ≧2, in the presence of D) a catalyst containing one or more ammonium salts or phosphonium salts of aliphatic or cycloaliphatic carboxylic acids, the reaction with compounds C) taking place at least proportionally with the formation of allophanate groups. The present invention also relates to the binders obtained by the process of the invention.