利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

59 条记录 (耗时 0.027 秒)

    Stereolithography using repeated exposures to increase strength and reduce distortion
    2.
    发明授权
    Stereolithography using repeated exposures to increase strength and reduce distortion 失效
    使用反复曝光进行立体光刻以增加强度并减少变形

    公开(公告)号：US4945032A

    公开(公告)日：1990-07-31

    申请号：US429561

    申请日：1989-10-31

    申请人： Edward J. Murphy ,  Robert E. Ansel ,  John J. Krajewski

    发明人： Edward J. Murphy ,  Robert E. Ansel ,  John J. Krajewski

    IPC分类号： B29C67/00 ,  G03F7/00

    CPC分类号： B29C67/0066 ,  G03F7/0037 ,  Y10S430/146

    摘要： An improved stereolithographic process is provided in which the formation of a thin walled three-dimensional object in a reservoir of liquid ultraviolet-curable ethylenically unsaturated material using a support is positioned immediately beneath the upper surface of the liquid reservoir with that upper surface being exposed to ultraviolet light in a pattern to solidify the liquid at and near the upper surface in a series of cross-sections of the desired three-dimensional object, one atop the other. In this way there is formed a series of superposed layers which adhere to one another to build the desired three-dimensional object within the liquid reservoir. The improvement comprises, stopping the exposure at any portion of the surface in the formation of said layers and then repeating the exposure at least once again in the production of each surface layer so that the strength and solvent resistance of the formed object are increased and its distortion is minimized. The ultraviolet exposure of each surface layer is preferably carried out as a series of rapid repeated scans of a computer-directed focused laser.

    摘要翻译： 提供了一种改进的立体光刻方法，其中使用支撑体在液体紫外线固化的烯属不饱和材料的储存器中形成薄壁三维物体位于液体储存器的上表面的正下方，该上表面暴露于 紫外光以图案的方式固化所需三维物体的一系列横截面中的上表面上和附近的液体，一个在另一个之上。 以这种方式形成一系列重叠的层，其彼此粘附以在液体储存器内构建所需的三维物体。 改进之处在于，在形成所述层的表面的任何部分处停止曝光，然后在每个表面层的制造中至少再次重复曝光，使得所形成的物体的强度和耐溶剂性增加， 失真最小化。 每个表面层的紫外线暴露优选作为计算机引导的聚焦激光器的一系列快速重复扫描进行。

    Method of forming a three-dimensional object by stereolithography and composition therefore
    3.
    发明授权
    Method of forming a three-dimensional object by stereolithography and composition therefore 失效
    因此通过立体光刻法和组合物形成三维物体的方法

    公开(公告)号：US4942001A

    公开(公告)日：1990-07-17

    申请号：US429568

    申请日：1989-10-31

    申请人： Edward J. Murphy ,  Robert E. Ansel ,  John J. Krajewski

    发明人： Edward J. Murphy ,  Robert E. Ansel ,  John J. Krajewski

    IPC分类号： B29C35/08 ,  B29C39/00 ,  B29C67/00 ,  G03F7/00

    CPC分类号： B29C67/0062 ,  B29C35/08 ,  B29C39/006 ,  G03F7/0037 ,  B29K2025/00 ,  B29K2033/04 ,  B29K2055/00

    摘要： A stereolithographic method which employs an ultraviolet-curable liquid composition adapted to cure rapidly to a lightly cross-linked solvent-swellable three-dimensional complexly-shaped polymeric thin-walled element constituted by heat-softenable solid polymer upon exposure to ultraviolet dosage in the range of about 0.1 to about 10 Joules per square centimeter and which possesses reduced distortion comprises, from 20 to 80 weight percent, of a resinous polyacrylate or polymethacrylate dissolved in a combination of 10 to 45 weight percent of a liquid polyacrylate or polymethacrylate, which is preferably trifunctional, and 10 to 45 weight percent of liquid N-vinyl monomer, preferably N-vinyl pyrrolidone. Thus, the weight ratio of polyacrylate: polymethacrylate: N-vinyl monomer is about 1:2:2 to about 8:1:1. One of the foregoing polyacrylates or polymethacrylates is a polyacrylate and the other is a polymethacrylate so that good cure speed is accompanied by good distortion resistance. In the method, a reservoir of the liquid composition is established and its exposed surface is irradiated to solidify the surface and build up a thin-walled element which is removed from the reservoir, drained of liquid adhering thereto and cured.

    摘要翻译： 一种立体光刻方法，其采用可紫外线固化的液体组合物，其适于快速固化至在可暴露于范围内的紫外线剂量下由可热软化的固体聚合物构成的轻度交联的溶剂可膨胀的三维复合形状的聚合物薄壁元件 约0.1至约10焦耳每平方厘米并且具有减小的变形的组合包含20至80重量％的以10至45重量％的液体聚丙烯酸酯或聚甲基丙烯酸甲酯的组合溶解的树脂聚丙烯酸酯或聚甲基丙烯酸酯，其优选 三官能和10至45重量％的液体N-乙烯基单体，优选N-乙烯基吡咯烷酮。 因此，聚丙烯酸酯：聚甲基丙烯酸酯：N-乙烯基单体的重量比为约1:2:2至约8:1:1。 上述聚丙烯酸酯或聚甲基丙烯酸酯之一是聚丙烯酸酯，另一种是聚甲基丙烯酸酯，因此良好的固化速度伴随着良好的抗变形性。 在该方法中，建立了液体组合物的储存器，并且照射其暴露的表面以固化表面并且形成从储存器中取出的薄壁元件，排出附着在其上并固化的液体。

    Postcuring of unsaturated stereolithographic specimens using aqueous initiating baths
    4.
    发明授权
    Postcuring of unsaturated stereolithographic specimens using aqueous initiating baths 失效
    使用水性起始浴来固化不饱和立体光刻试样

    公开(公告)号：US4972006A

    公开(公告)日：1990-11-20

    申请号：US241881

    申请日：1988-09-08

    申请人： Edward J. Murphy ,  John J. Krajewski ,  Robert E. Ansel

    发明人： Edward J. Murphy ,  John J. Krajewski ,  Robert E. Ansel

    IPC分类号： B29C67/00 ,  B29C71/02 ,  C08F4/40

    CPC分类号： C08F4/40 ,  B29C67/0051 ,  B29C71/02

    摘要： A method of curing a three-dimensional specimen of preformed cross-linked polymeric material containing polymerizable ethylenically-unsaturated material is provided in which the specimen is immersed in water having dissolved therein an amount of a water-soluble organic free-radical polymerization catalyst effective to transfer a polymerization-initiating amount of the catalyst into the preformed cross-linked polymeric material. This specimen containing the water-soluble organic free-radical polymerization catalyst is heated to a temperature causing polymerization, and is maintained at that temperature while the cure is completed. The aqueous bath preferably contains a catalyst mixture which includes a catalyst of oxidizing character in admixture with a reducing agent, such as an amine, and is maintained at a polymerization temperature of from 60.degree. C. to 100.degree. C. so that immersion of the specimen in a single bath completes the cure.

    摘要翻译： 提供一种固化含有可聚合烯属不饱和材料的预成型交联聚合物材料的三维样品的方法，其中将样品浸入其中溶解有一定量的水溶性有机自由基聚合催化剂的水中， 将催化剂的聚合引发量转移到预先形成的交联聚合物材料中。 将含有水溶性有机自由基聚合催化剂的试样加热至导致聚合的温度，并在固化完成的同时保持该温度。 水浴优选含有催化剂混合物，其包括与还原剂如胺混合的氧化性催化剂，并保持在聚合温度为60℃至100℃， 在一个浴中的标本完成治愈。

    Investment casting utilizing patterns produced by stereolithography
    5.
    发明授权
    Investment casting utilizing patterns produced by stereolithography 失效
    投资铸造利用立体光刻产生的图案

    公开(公告)号：US4844144A

    公开(公告)日：1989-07-04

    申请号：US229476

    申请日：1988-08-08

    申请人： Edward J. Murphy ,  Robert E. Ansel ,  John J. Krajewski

    发明人： Edward J. Murphy ,  Robert E. Ansel ,  John J. Krajewski

    IPC分类号： B22C7/02 ,  B22C9/04 ,  B29C67/00

    CPC分类号： B22C9/04 ,  B22C7/02 ,  B29C67/0051

    摘要： A method of investment casting utilizes a pattern produced by stereolithography in which a three-dimensional specimen is provided by light cure of ethylenically unsaturated liquid material. The stereolithography composition is constituted by the ethylenically unsaturated liquid material in admixture with an inert low thermoplastic material which weakens the pattern when heated within the mold used in the investment casting process to prevent the thermal expansion of the pattern from cracking the mold.

    摘要翻译： 投资铸造的方法利用通过立体光刻法产生的图案，其中通过烯属不饱和液体材料的光固化提供三维样品。 立体光刻组合物由烯属不饱和液体材料与惰性低热塑性材料混合而成，当在熔模铸造工艺中使用的模具中加热时，该模塑会削弱图案，以防止图案的热膨胀破坏模具。

    Production of monomeric etherified bisphenol-formaldehyde condensates
    6.
    发明授权
    Production of monomeric etherified bisphenol-formaldehyde condensates 失效
    单体醚化双酚 - 甲醛缩合物的生产

    公开(公告)号：US4310653A

    公开(公告)日：1982-01-12

    申请号：US195110

    申请日：1980-10-08

    申请人： John J. Krajewski ,  Edward J. Murphy

    发明人： John J. Krajewski ,  Edward J. Murphy

    IPC分类号： C08G8/36 ,  C09D161/14 ,  C08G2/34 ,  C08G8/20

    CPC分类号： C09D161/14 ,  C08G8/36 ,  Y10S524/901

    摘要： A method of producing essentially monomeric etherified formaldehyde condensates with a bisphenol having a plurality of formaldehyde-reactive sites is disclosed in which the bisphenol is reacted with at least about 2 moles of formaldehyde per mole of bisphenol in solution in etherifying alcohol in the presence of an insoluble strong acid cation exchange resin. The reaction is carried out at a reaction temperature of from about 30.degree. C. to about 100.degree. C. to simultaneously provide the desired methylolation and etherification without introducing soluble ionic contaminants.

    摘要翻译： 公开了一种用具有多个甲醛反应性位点的双酚生产基本上单体醚化的甲醛缩合物的方法，其中在醚化醇存在下，双酚与溶剂中每摩尔双酚的至少约2摩尔甲醛反应 不溶性强酸阳离子交换树脂。 反应在约30℃至约100℃的反应温度下进行，以同时提供所需的羟甲基化和醚化，而不引入可溶性离子污染物。

    D1365 BJ RADIATION CURABLE PRIMARY COATING FOR OPTICAL FIBER
    9.
    发明申请
    D1365 BJ RADIATION CURABLE PRIMARY COATING FOR OPTICAL FIBER 审中-公开
    D1365 BJ辐射可固化主要用于光纤的涂层

    公开(公告)号：US20080226912A1

    公开(公告)日：2008-09-18

    申请号：US11955547

    申请日：2007-12-13

    申请人： Tyson Dean NORLIN ,  Steven R. Schmid ,  Edward J. Murphy ,  John M. Zimmerman ,  Anthony Joseph Tortorello

    发明人： Tyson Dean NORLIN ,  Steven R. Schmid ,  Edward J. Murphy ,  John M. Zimmerman ,  Anthony Joseph Tortorello

    IPC分类号： B32B17/02 ,  C08L75/00 ,  B32B17/10 ,  C03C25/34

    CPC分类号： C09D175/08 ,  C03C25/1065 ,  C03C25/326 ,  C08G18/672 ,  C09D5/002 ,  C09D175/16 ,  G02B6/02395 ,  Y10T428/2964 ,  C08G18/48

    摘要： Radiation curable coatings for use as a Primary Coating for optical fibers, optical fibers coated with said coatings and methods for the preparation of coated optical fibers. The present invention provides a radiation curable Primary Coating composition comprising: an oligomer; first diluent monomer; a second diluent monomer; a third diluent monomer; a first light stabilizer; a first photoinitiator; a second photoinitiator; an antioxidant; a second light stabilizer; and an adhesion promoter; wherein said oligomer is the reaction product of hydroxyl-containing acrylate; an isocyanate; a polyether polyol; a polymerization inhibitor; a catalyst; and a diluent; wherein said oligomer has a number average molecular weight of from at least about 4000 g/mol to less than or equal to about 15,000 g/mol; and wherein said catalyst is selected from the group consisting of copper naphthenate; cobalt naphthenate; zinc naphthenate; triethylamine; triethylenediamine; 2-methyltriethyleneamine; dibutyl tin dilaurate; metal carboxylates, including, but not limited to: organobismuth catalysts such as bismuth neodecanoate; zinc neodecanoate; zirconium neodecanoate; zinc 2-ethylhexanoate; sulfonic acids, including but not limited to dodecylbenzene sulfonic acid, methane sulfonic acid; amino or organo-base catalysts, including, but not limited to, 1,2-dimethylimidazole and diazabicyclooctane; triphenyl phosphine; alkoxides of zirconium and titanium, including, but not limited to Zirconium butoxide and Titanium butoxide; and Ionic liquid phosphonium salts; and tetradecyl(trihexyl) phosphonium chloride; and wherein a cured film of said radiation curable Primary Coating composition has a peak tan □ Tg of from about −25° C. to about −55° C.; and a modulus of from about 0.85 MPa to about 1.10 MPa.

    摘要翻译： 用作光纤的主要涂层的辐射固化涂层，涂覆有所述涂层的光纤以及用于制备涂覆的光纤的方法。 本发明提供了一种可辐射固化的初级涂料组合物，其包含：低聚物; 第一稀释剂单体; 第二稀释剂单体; 第三稀释剂单体; 第一光稳定剂; 第一种光引发剂; 第二光引发剂; 抗氧化剂 第二种光稳定剂; 和粘合促进剂; 其中所述低聚物是含羟基的丙烯酸酯的反应产物; 异氰酸酯; 聚醚多元醇; 阻聚剂; 催化剂 和稀释剂; 其中所述低聚物的数均分子量为至少约4000g / mol至小于或等于约15,000g / mol; 并且其中所述催化剂选自环烷酸铜; 环烷酸钴; 环烷酸锌; 三乙胺 三亚乙基二胺 2-甲基三亚乙基胺; 二月桂酸二丁基锡; 金属羧酸盐，包括但不限于：有机铋催化剂如新戊酸铋; 新癸酸锌; 新癸酸锆; 2-乙基己酸锌; 磺酸，包括但不限于十二烷基苯磺酸，甲磺酸; 氨基或有机碱催化剂，包括但不限于1,2-二甲基咪唑和二氮杂双环辛烷; 三苯基膦 锆和钛的醇盐包括但不限于丁氧基锆和丁醇钛; 和离子液体鏻盐; 和十四烷基（三己基）鏻氯化物; 并且其中所述可辐射固化的初级涂层组合物的固化膜具有约-25℃至约-55℃的峰值tanδTg。 和约0.85MPa至约1.10MPa的模量。