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公开(公告)号：US4101624A
公开(公告)日：1978-07-18
申请号：US448589
申请日：1974-03-06
CPC分类号： C01B33/02
摘要： Disclosed is a method of casting silicon metal. Silicon metal expands upon solidification. According to the disclosed method a void volume of from 1 to 10 percent of the silicon metal, basis molten silicon metal, is established within the molten silicon metal. The void volume is capable of being decreased in volume upon the solidification of the silicon metal. In this way, the increase in volume of the silicon metal upon solidification is offset.
摘要翻译： 公开了一种铸造硅金属的方法。 硅金属在凝固时膨胀。 根据所公开的方法，在熔融硅金属内部建立了1至10％的硅金属基础熔融硅金属的空隙体积。 在硅金属凝固时，空隙体积能够减小体积。 以这种方式，固化时硅金属的体积增加被抵消。
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公开(公告)号：US3958741A
公开(公告)日：1976-05-25
申请号：US447708
申请日：1974-03-04
摘要： Disclosed is a method of mounting a silicon member intended for use as an anode in the lead base of a chlor-alkali electrolytic cell. According to this invention, the amount of molten lead provided on the cell base in contact with the stem or base of the anode is low enough to avoid subjecting the silicon member to excessive thermal stresses.
摘要翻译： 公开了将用作阳极的硅构件安装在氯碱电解池的铅基底中的方法。 根据本发明，提供在与阳极的杆或基底接触的电池基座上的熔融铅的量足够低以避免硅元件经受过度的热应力。
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公开(公告)号：US3956098A
公开(公告)日：1976-05-11
申请号：US544986
申请日：1975-01-29
CPC分类号： C25B9/00 , B23K35/001 , F16B11/006 , B23K2035/008 , Y10T428/12569 , Y10T428/12674
摘要： Disclosed is a method of joining a silicon metal work piece to a second metallic work piece. In the disclosed method, an adherent surface is provided on the silicon work piece. A pool is then provided on the surface of the silicon, in contact with the adherent surface and with the second metallic work piece. The pool is then solidified to join the silicon work piece and the second work piece.
摘要翻译： 公开了将硅金属工件接合到第二金属工件的方法。 在所公开的方法中，在硅工件上提供粘附表面。 然后在硅的表面上提供与粘附表面和第二金属工件接触的池。 然后将池凝固以加入硅工件和第二工件。
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4.发明授权公开(公告)号：US06436525B1
公开(公告)日：2002-08-20
申请号：US09209731
申请日：1998-12-11
IPC分类号： B32B904
CPC分类号： G02B5/23 , C09K9/02 , G03C1/685 , G03C1/73 , Y10T428/26 , Y10T428/31504 , Y10T428/31678 , Y10T428/31989 , Y10T428/31993
摘要： Described are articles having a polyanhydride photochromic coating. The coatings exhibit a Fischer microhardness of from 50 to 130 Newtons per mm2 and desirable photochromic properties, i.e., the formation of darker activated colors and faster rates of photochromic activation and fade when irradiated with ultraviolet light. Also described are polyanhydride photochromic articles.
摘要翻译： 描述了具有聚酐光致变色涂层的制品。 涂层表现出的Fischer显微硬度为50至130牛顿/ mm 2，并且具有所需的光致变色性质，即形成更暗的活化颜色，并且当用紫外光照射时，光致变色激活速率和较快的速度。 还描述了聚酐光致变色制品。
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公开(公告)号：US5391327A
公开(公告)日：1995-02-21
申请号：US257234
申请日：1994-06-09
CPC分类号： G02B5/23 , C08K5/0041 , C08K5/005 , C08K5/46
摘要： Photochromic optical articles of improved resistance to light fatigue are provided by the use of a combination of hindered amine light stabilizer and asymmetric diaryloxalamide light stabilizer with a mixture of (1) photochromic material having a minima luminous transmission in the range of 560 to 630 nanometers and (2) photochromic material having a minima luminous transmission in the range of 430 to 520 nanometers.
摘要翻译： 通过使用受阻胺光稳定剂和不对称二芳基酰胺光稳定剂的组合与（1）具有560至630纳米范围内的最小透光率的光致变色材料的混合物的混合物来提供具有改善的耐疲劳性的光致变色光学制品，以及 （2）具有在430至520纳米范围内的最小透光率的光致变色材料。
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公开(公告)号：US5185390A
公开(公告)日：1993-02-09
申请号：US802927
申请日：1991-12-06
申请人： Scott Fischer , Cletus N. Welch
发明人： Scott Fischer , Cletus N. Welch
IPC分类号： C08L1/28 , C09D101/28 , C09D139/06 , G02B1/04
CPC分类号： G02B1/041 , C09D101/284 , C09D139/06 , C08L1/284
摘要： A process for incorporating by thermal diffusion a photochromic substance into a synthetic organic host material is described. In the process, a surface of the host material containing a coating of a resin composition of from about 5 to about 50 parts of hydroxy (C.sub.2 -C.sub.3) alkyl cellulose, e.g., hydroxy propyl cellulose, and from about 95 to about 50 parts of poly(vinylpyrrolidone), which resin composition contains a photochromic substance, is heated to diffuse at least a portion of the photochromic substance into the surface of the host material. Subsequently, the coating is removed by washing with warm soapy water. In a particular embodiment, the host material is a polymer prepared from diethylene glycol bis(allyl carbonate).
摘要翻译： 描述了通过热扩散将光致变色物质并入合成有机主体材料的方法。 在该方法中，主体材料的表面含有约5至约50份羟基（C 2 -C 3）烷基纤维素例如羟丙基纤维素的树脂组合物的涂层和约95至约50份的 加热该树脂组合物含有光致变色物质的聚（乙烯基吡咯烷酮），使至少一部分光致变色物质扩散到主体材料的表面。 随后，用温热的肥皂水洗涤除去涂层。 在一个具体实施方案中，主体材料是由二甘醇双（碳酸烯丙酯）制备的聚合物。
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公开(公告)号：US4880667A
公开(公告)日：1989-11-14
申请号：US110636
申请日：1987-10-15
申请人： Cletus N. Welch
发明人： Cletus N. Welch
摘要： Described is a method for imparting a photochromic response to a synthetic plastic article, e.g., an optical lens such as a sunglass lens prepared from an allyl diglycol carbonate monomer. The method described comprises depositing a thin uniform substantially dry film of a photochromic-bearing polymeric resin onto at least one planar surface of the synthetic plastic material, heating the plastic article and resin film substantially uniformly at temperatures near to but below the melting temperature of the photochromic substance for a time sufficient to transfer a photochromic amount of the photochromic material into the subsurface region of the plastic article, and thereafter removing the photochromic-lean resin film from the planar surface(s) of the plastic article.
摘要翻译： 描述了对合成塑料制品（例如由烯丙基二甘醇碳酸酯单体制备的诸如太阳眼镜片的光学透镜）赋予光致变色响应的方法。 所述方法包括将含有光致变色聚合物树脂的薄均匀基本上干燥的膜沉积在合成塑料材料的至少一个平面上，在接近但低于熔融温度的温度下基本均匀地加热塑料制品和树脂膜 光致变色物质足以将光致变色材料的光致变色材料转移到塑料制品的表面下区域，然后从塑料制品的平坦表面除去光致变色树脂膜。
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公开(公告)号：US4675357A
公开(公告)日：1987-06-23
申请号：US614883
申请日：1984-05-29
申请人： Cletus N. Welch
发明人： Cletus N. Welch
摘要： Disclosed is a near infrared absorbing polymerizate prepared from bis(allyl carbonate) monomer containing the reaction product of tungsten hexachloride and phenolic compounds.
摘要翻译： 公开了由含有六氯化钨和酚类化合物的反应产物的双（烯丙基碳酸酯）单体制备的近红外吸收聚合物。
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公开(公告)号：US06998072B2
公开(公告)日：2006-02-14
申请号：US10270622
申请日：2002-10-16
申请人： Cletus N. Welch , Eric M. King , Lawrence G. Anderson , Randy E. Daughenbaugh , Kevin J. Stewart
发明人： Cletus N. Welch , Eric M. King , Lawrence G. Anderson , Randy E. Daughenbaugh , Kevin J. Stewart
CPC分类号： G02B5/23 , C03C17/32 , C08G18/44 , C08G18/8108 , C08G64/0291 , C09D4/06 , C09K9/02 , Y10S430/163 , C08F290/062
摘要： Described is a polymerizable composition of a photochromic amount of at least one photochromic compound, at least one material having at least one carbonate group and at least one hydroxyl group, and at least one monoisocyanate containing material having at least one unsaturated group. The polymerizable composition optionally contains copolymerizable monomers. Also described are photochromic polymerizates, e.g., photochromic optical elements such as ophthalmic lenses, prepared from the polymerizable composition of the present invention.
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10.发明授权Aminoplast resin photochromic coating composition and photochromic articles 有权氨基塑料树脂光致变色涂料组合物和光致变色制品公开(公告)号：US06506488B1
公开(公告)日：2003-01-14
申请号：US09449099
申请日：1999-11-24
IPC分类号： B32B2700
CPC分类号： C09K9/02 , G02B5/23 , Y10S428/923 , Y10S428/926 , Y10T428/26 , Y10T428/31504 , Y10T428/31507 , Y10T428/31551 , Y10T428/31627 , Y10T428/31678 , Y10T428/31855 , Y10T428/31859 , Y10T428/31862 , Y10T428/31877 , Y10T428/31971 , Y10T428/31989
摘要： Described are articles having an aminoplast resin photochromic coating prepared from an aminoplast resin, components(s) having hydroxyl functional groups and photochromic substances. The coatings exhibit a Fischer microhardness of from 45 to 180 Newtons per mm2 and desirable photochromic properties, i.e., the formation of darker activated colors and faster rates of photochromic activation and fade when irradiated with ultraviolet light. Also described are photochromic aminoplast resin articles.
摘要翻译： 描述了具有由氨基塑料树脂，具有羟基官能团的组分和光致变色物质制备的氨基塑料树脂光致变色涂层的制品。 涂层表现出45至180牛顿/ mm 2的菲舍尔显微硬度和所需的光致变色性质，即形成更暗的活化颜色和较快的光致变色激活速率和用紫外线照射时的褪色。 还描述了光致变色氨基塑料树脂制品。
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