摘要:
An contact lens or intraocular lens (IOL) with very high water content polymers that have increased hydrolytic stability to withstand high temperatures such as autoclave temperatures, 123 C or even higher temperatures while in an aqueous environment comprising at least one polymer comprising one or more monomeric subunits comprising a polymerized acrylamide or methacrylamide group, at least one side group comprising an aliphatic carbon moiety substituted by at least one hydroxyl moiety, wherein the one or more monomeric subunits comprising a polymerized acrylamide or methacrylamide group, at least one side group comprising an aliphatic carbon moiety substituted by at least one hydroxyl moiety, comprise at least 50 wt.% of the polymer.
摘要:
A precursor composition for porous film comprising at least one member selected from the group consisting of compounds represented by the following general formulas: Si(OR 1 ) 4 and R a (Si)(OR 2 ) 4-a (in the formulas, R 1 represents a monovalent organic group; R represents a hydrogen atom, a fluorine atom or a monovalent organic group; R 2 represents a monovalent organic group; a is an integer ranging from 1 to 3, provided that R, R 1 and R 2 may be the same or different); a heat decomposable organic compound capable of being thermally decomposed at a temperature of not less than 250°C; and at least one element selected from the group consisting of elements each having a catalytic action, and organic solvent. A hydrophobic compound is subjected to a gas-phase polymerization reaction in the presence of a solution of this precursor composition to thus form a hydrophobic porous film having a low dielectric constant, a low refractive index and high mechanical strength. A semiconductor device prepared using the porous film.
摘要翻译:的Si(OR 1)4和R A(Si)的(OR 2)4-A(式中,R:为多孔膜,其包括选自由以下通式表示的化合物族群中的至少一个成员的前体组合物 1表示一价有机基团; R darstellt氢原子,氟原子或一价有机基团; R 2表示一价有机基团; a是整数,从1至3,条件没有R,R 1和R 2可以 是相同的或不同的); 能够在不低于250℃的温度下被热分解的热分解性有机化合物; 和选自元素由具有催化作用的每个,和有机溶剂中选择的至少一种元素。 疏水性化合物进行在该前体组合物的溶液的存在下,气相聚合反应,以形成具有低介电常数,低折射率和高机械强度的疏水性多孔THUS电影。 一种半导体器件,使用该多孔片制备。
摘要:
The present invention provides copolymers made up of alkoxyalkyl methacrylate and/or alkoxyalkyl acrylate monomers in combination with one or more additional hydrophobic monomers. The copolymers may be used in the manufacture of intraocular lenses, including both the optic and haptic portions of the lenses. The present invention also provide methods for making intraocular lenses from the copolymers.
摘要:
The present invention herein provide a thin film-manufacturing device and a thin film-manufacturing method which are excellent in the mass-production ability and productivity, which permit the stable and continuous production of films over a long period of time while reproducing a good film thickness distribution, a good compositional distribution and a high film-forming rate and controlling the number of particles generated during the film-formation to a lower level. The device is one serving as a CVD device in which a film-forming gas is introduced into a reaction chamber from the upper portion of the chamber serving as a reaction space (A) , through a shower head (3) and a film is formed on a heated substrate (S), wherein the device is so designed that the upper reaction space is constructed by the substrate-supporting stage (4) which is free of any rotational motion or free of any elevating motion, the shower head (3) and a deposition-inhibitory plate (6), that the substrate-supporting stage (4) and the deposition-inhibitory plate (6) are so arranged as to form, between them, a concentric gap or interstice serving as a gas-exhaust path (7) through which an inert gas can flow from the upper portion of the gas-exhaust path (7) along the deposition-inhibitory plate (6) and that a lower space (B) is formed on the secondary side of the gas-exhaust path (7).
摘要:
The present invention herein provide a thin film-manufacturing device and a thin film-manufacturing method which are excellent in the mass-production ability and productivity, which permit the stable and continuous production of films over a long period of time while reproducing a good film thickness distribution, a good compositional distribution and a high film-forming rate and controlling the number of particles generated during the film-formation to a lower level. The device is one serving as a CVD device in which a film-forming gas is introduced into a reaction chamber from the upper portion of the chamber serving as a reaction space (A) , through a shower head (3) and a film is formed on a heated substrate (S), wherein the device is so designed that the upper reaction space is constructed by the substrate-supporting stage (4) which is free of any rotational motion or free of any elevating motion, the shower head (3) and a deposition-inhibitory plate (6), that the substrate-supporting stage (4) and the deposition-inhibitory plate (6) are so arranged as to form, between them, a concentric gap or interstice serving as a gas-exhaust path (7) through which an inert gas can flow from the upper portion of the gas-exhaust path (7) along the deposition-inhibitory plate (6) and that a lower space (B) is formed on the secondary side of the gas-exhaust path (7).
摘要:
A safety circuit 31, which compulsorily closes an on-off valve for supplying a gas to a burner when a microcomputer for performing a combustion control is in an abnormal condition, does not operate unless abnormality occurs to the microcomputer 1, and therefore even when the safety circuit 31 is out of order, an ignition operation is performed as it is. A transistor 4 is not turned off until a fixed time elapses from a start of an ignition sequence in the safety circuit 31, but the fixed time is shortened by a timer acceleration circuit 32, and if the transistor 4 is turned off by a transistor 2 being turned on, the safety circuit 31 is determined as normal, so that the normal ignition sequence is executed thereafter.