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    • 83. 发明授权
    • Method for increasing adhesion between a coating and an optical glass
fiber electron beam pretreatment
    • 增加涂层与光学玻璃纤维电子束预处理之间粘附性的方法
    • US5812725A
    • 1998-09-22
    • US826388
    • 1997-04-09
    • James R. Petisce
    • James R. Petisce
    • C03C25/10B01J19/08C03C25/12C03C25/62G02B6/44G02B6/16B05D5/06C03B37/01
    • C03C25/12B01J19/085C03C25/6266
    • This invention provides a method of increasing adhesion of radiation-cured, inner primary coatings on glass optical fibers. A glass optical fiber drawing tower has a controllable variable amperage electron beam for exposing different sections of a glass optical fiber with different amperage levels of electron beam radiation. The different sections of the glass optical fiber after being exposed to the selected amperage levels of electron beam radiation are then coated with an inner primary coating composition which is finally cured by exposure to actinic radiation. Later formed sections of the same glass optical fiber can be exposed to different amperage levels of electron beam radiation and then coated and cured. The different sections of the glass optical fiber which have been coated with an inner primary coating using this method demonstrate correspondingly different degrees of coating adhesion. Reduced levels of adhesion promoter are required for inner primary coating compositions when using this method.
    • 本发明提供了一种增加辐射固化的内部初级涂层对玻璃光纤的附着力的方法。 玻璃光纤拉伸塔具有可控的可变安培电子束,用于暴露具有不同安培数电子束辐射的玻璃光纤的不同部分。 然后将玻璃光纤暴露于所选安培数电子束辐射后的不同部分用内部初级涂层组合物涂覆,该内部初级涂层组合物最终通过暴露于光化辐射而固化。 后来,同一玻璃光纤的成形部分可以暴露于不同电流强度的电子束辐射,然后涂覆和固化。 使用这种方法涂覆有内部初级涂层的玻璃光纤的不同部分表现出相应的不同程度的涂层附着力。 使用该方法时,内部初级涂料组合物需要降低粘合促进剂的含量。
    • 84. 发明授权
    • System for continuously monitoring curing energy levels within a curing
unit
    • 用于连续监测固化单元内固化能级的系统
    • US5418369A
    • 1995-05-23
    • US30501
    • 1993-03-12
    • Robert C. MooreJames R. PetisceCarl R. Taylor
    • Robert C. MooreJames R. PetisceCarl R. Taylor
    • B01J19/12B05D3/06B29C35/02B29C35/08B29C35/10C03C25/12G01J1/02G02B6/44G21K5/10G01J1/18
    • B29C35/0288B01J19/123B05D3/067B29C35/10C03C25/12B29C2035/0827
    • The present invention continuously monitors the amount of curing radiation available for curing coating material on a moving optical fiber and includes a curing system having a radiation source capable of providing radiation energy for curing coating material on an optical fiber and a reflector system which redirects non-direct radiation back toward the article. An optical fiber which has been provided with a curable coating material is moved along a path of travel through a curing area. The coating material is cured by causing the radiation source to emit energy suitable for curing the curable coating material. The predictable average amount of light energy properly redirected by the reflector system toward the curable article is sensed as the curable coating material is being cured to obtain continuous in-process reading. The average radiation value is obtained by positioning three longitudinally aligned holes adjacent the fiber path and between the fiber and a radiation sensing device. Furthermore, the amount of the light energy available from the reflector system may be sensed at a location which is outside the reflector system to obtain a reference reading. The in-process readings may then be compared with the reference reading to determine the portion of the radiation available from the radiation source which is actually available for curing the curable coating material.
    • 本发明持续地监测可用于固化移动光纤上的涂层材料的固化辐射的量,并且包括具有辐射源的固化系统,所述辐射源能够提供用于固化光纤上的涂层材料的辐射能量以及反射器系统, 直接辐射回文章。 已经设置有可固化涂层材料的光纤沿着穿过固化区域的行进路径移动。 通过使辐射源发射适于固化可固化涂层材料的能量来固化涂层材料。 当可固化涂层材料被固化以获得连续的在读读数时,感测到由反射器系统正确地朝向可固化物品重定向的可预测的平均光能量。 平均辐射值是通过将三个纵向对准的孔定位在光纤路径附近并且在光纤和辐射感测装置之间来获得的。 此外,可以在反射器系统外部的位置处感测从反射器系统可获得的光能的量以获得参考读数。 然后将进程内读数与参考读数进行比较,以确定可用于固化可固化涂层材料的辐射源可用的辐射部分。
    • 86. 发明授权
    • Apparatus for making coated optical fiber
    • 制造涂层光纤的装置
    • US5217518A
    • 1993-06-08
    • US837679
    • 1992-02-14
    • James R. Petisce
    • James R. Petisce
    • B01J19/08B01J19/12B29C35/08B29C35/10B29C35/12B29C35/14C03C25/10C03C25/12
    • B29C35/14B01J19/087B01J19/123B29C35/10C03C25/1055C03C25/12B01J2219/0852B01J2219/0854B29C2035/0827B29C35/12B29L2011/0075Y10S118/18
    • In the manufacture of coated optical fiber, fiber (21) is drawn from a preform (22) and is coated with one or preferably two layers (42,44) of light curable coating materials. Afterwards, the coating materials are cured. Increases in manufacturing line speed may be achieved if the cure speed of the coating materials is increased. This is accomplished by the simultaneous application of a magnetic field during irradiation of the curable coating materials to enhance the crosslinking of the coating materials by a free radical polymerization mechanism. Upon absorption of light, a photoinitiator in each composition cleaves to produce two free radical fragments in the spin paired or singlet state. The magnetic field has the effect of enhancing the production of spin parallel radicals which enhances the polymerization initiation of the coating material, thereby allowing an increase in the manufacturing line speed through drawing and coating apparatus.
    • 在涂覆光纤的制造中,纤维(21)从预成型件(22)中拉出,并且涂覆有一种或优选两层(42,44)的可光固化涂层材料。 之后,涂层材料固化。 如果涂层材料的固化速度提高,则可以实现生产线速度的提高。 这是通过在可固化涂层材料的照射期间同时施加磁场来实现的,以通过自由基聚合机制增强涂层材料的交联。 在吸收光时,每个组合物中的光引发剂切割以产生自旋配对或单重态的两个自由基片段。 磁场具有增强自旋平行自由基的产生的效果,这增强了涂料的聚合引发,从而允许通过拉伸和涂布装置增加制造线速度。