Extrusion-compression molding of optical articles
    1.
    发明授权
    Extrusion-compression molding of optical articles 失效
    光学制品的挤压成型

    公开(公告)号:US6015512A

    公开(公告)日:2000-01-18

    申请号:US14811

    申请日:1998-01-28

    Abstract: An extrusion-compression molding process is provided for making optical articles wherein a melt shot of optical polymer extrudate is fed to sequentially moving lower dies of a die set including a lower die and an upper die and then the upper die positioned on top of the melt shot containing lower die and the die set compressed forming the optical article. After the optical article is formed, the lower die and upper die are separated and recycled for forming additional optical articles. The optical polymeric material may be in the form of pellets and melted in an extruder. A reaction extruder may also be employed where the optical polymeric material is produced in the reaction extruder from optical polymer monomers. A shuttle carriage is preferably used to transport the lower die, melt shot containing lower die and melt shot containing die set through the steps of the molding process. A control system is used to obtain input data and generate output signals to monitor and control the process steps.

    Abstract translation: 提供挤出压缩成型方法用于制造光学制品,其中将光学聚合物挤出物的熔融射流供给到包括下模和上模的模具的顺序移动下模,然后将上模位于熔体顶部 包含下模的模具和压缩的模具组成光学制品。 在形成光学制品之后,将下模和上模分离并再循环以形成附加的光学制品。 光学聚合物材料可以是粒料的形式并在挤出机中熔融。 还可以使用反应挤出机,其中在光学聚合物单体的反应挤出机中制备光学聚合物材料。 穿梭车架优选地用于运送下模,熔模喷射含有下模,并且通过模制工艺的步骤熔融喷射。 控制系统用于获取输入数据并生成输出信号来监视和控制过程步骤。

    Process method optical thermoplastic urethane resin lens and the lens
    2.
    发明授权
    Process method optical thermoplastic urethane resin lens and the lens 失效
    光学热塑性聚氨酯树脂透镜和透镜的工艺方法

    公开(公告)号:US06309568B1

    公开(公告)日:2001-10-30

    申请号:US09402756

    申请日:1999-10-27

    Abstract: A method of continuously fabricating a lens excellent in various optical characteristics and having no nonuniformity in the characteristics over a total of the lens and a lens fabricated by the method. A first step for forming thiourethane prepolymer and a second step for making thiourethane prepolymer react with at least one urethane forming monomer are carried out in an extruder or in a reactor having an extruding device at a succeeding step, extruded thermoplastic thiourethane-urethane copolymer for optical use is elongated in a sheet-like shape, a lens precursor is formed by punching out the copolymer elongated in a sheet-like shape and the lens precursor is pressed such that a predetermined curved face is provided at least on one face of the lens precursor.

    Abstract translation: 一种连续制造各种光学特性优异并且在总共的透镜和通过该方法制造的透镜中的特性不均匀的透镜的方法。 用于形成硫代氨基甲酸酯预聚物的第一步骤和用于制备硫代氨基甲酸酯预聚物与至少一种氨基甲酸酯形成单体反应的第二步骤在挤出机或具有后续步骤的挤出装置的反应器中进行,用于光学的挤出的热塑性硫代氨基​​甲酸酯 - 氨基甲酸酯共聚物 使用的片状形状伸长,通过冲压出片状形状的伸长的共聚物形成透镜前体,并且按压镜片前体,使得在透镜前体的至少一个面上设置预定的曲面 。

    Optical thermoplastic thiourethane-urethane copolymers
    3.
    发明授权
    Optical thermoplastic thiourethane-urethane copolymers 失效
    光学热塑性硫代氨基​​甲酸酯 - 氨基甲酸酯共聚物

    公开(公告)号:US5679756A

    公开(公告)日:1997-10-21

    申请号:US548806

    申请日:1995-12-22

    Abstract: A process for making thermoplastic thiourethane-urethane copolymers for use in making optical products preferably comprising reacting an aliphatic diisocyanate with a dithiol under polymerization conditions to form a thiourethane prepolymer which is then reacted with a diisocyanate such as methylene bis(phenyl isocyanate) and a polyol such as a diaromatic containing diol such as ethoxylated Bisphenol A or an aliphatic isocyanate reactive monomer such as tricyclodecane dimethanol or 1,4-dimethanol cyclohexane to form the copolymer product. The polymers have a combination of high refractive index and high Abbe No. The polymers also have high impact strength, high hardness and Tg's above 100.degree. C. It is preferred to make the polymer in an extruder.

    Abstract translation: 制备用于制备光学产品的热塑性硫代氨基​​甲酸酯 - 氨基甲酸酯共聚物的方法优选包括在聚合条件下使脂族二异氰酸酯与二硫醇反应以形成硫代氨基甲酸酯预聚物,然后与二异氰酸酯如亚甲基双(苯基异氰酸酯)和多元醇 例如二氧化二乙烯二芳基二醇或诸如三环癸烷二甲醇或1,4-二甲醇环己烷的脂族异氰酸酯反应性单体以形成共聚物产物。 聚合物具有高折射率和高阿贝值的组合。聚合物还具有高冲击强度,高硬度和高于100℃的Tg。优选在挤出机中制备聚合物。

    Optical terpolymer of polyisocyanate, polythiol and polyene monomers
    4.
    发明授权
    Optical terpolymer of polyisocyanate, polythiol and polyene monomers 失效
    多异氰酸酯,多硫醇和多烯单体的光学三元共聚物

    公开(公告)号:US6008296A

    公开(公告)日:1999-12-28

    申请号:US425958

    申请日:1995-04-19

    CPC classification number: C08G18/3876 C08G75/045

    Abstract: A monomer composition characterized by being curable to form a resin suitable for optical products having a balanced refractive index and Abbe's number range and good tintability comprising a polyene monomer; a polyisocyanate, polyisothiocyanate, or an isocyanate monomer containing at least one isothiocyanate group; and a monomer having two or more active hydrogen groups such as polythiols, polyamines, and polyols. The invention also provides a special process for making the composition and for curing the composition to form a resin product.

    Abstract translation: 一种单体组合物,其特征在于可固化以形成适于具有平衡折射率和阿贝数范围的光学产品的树脂,并且具有包含多烯单体的良好的着色性; 多异氰酸酯,多异氰酸酯或含有至少一种异硫氰酸酯基团的异氰酸酯单体; 和具有两个或更多个活性氢基团的单体,例如多硫醇,多胺和多元醇。 本发明还提供了用于制备组合物并固化组合物以形成树脂产品的特殊方法。

    Optical terpolymer of polyisocyanate, polythiol and polyene monomers
    5.
    发明授权
    Optical terpolymer of polyisocyanate, polythiol and polyene monomers 失效
    多异氰酸酯,多硫醇和多烯单体的光学三元共聚物

    公开(公告)号:US06777494B1

    公开(公告)日:2004-08-17

    申请号:US09280601

    申请日:1999-03-29

    CPC classification number: C08G18/3876 C08G75/045

    Abstract: A monomer composition characterized by being curable to form a resin suitable for optical products having a balanced refractive index and Abbe's number range and good tintability comprising a polyene monomer; and polyisocyanate, polyisothiocyanate, or an isocyanate monomer containing at least one isothiocyanate group; and a monomer having two or more active hydrogen groups such as polythiols, polyamines, and polyols. The invention also provides a special process for making the composition and for curing the composition to form a resin product.

    Abstract translation: 一种单体组合物,其特征在于可固化以形成适于具有平衡折射率和阿贝数范围的光学产品的树脂,并且具有包含多烯单体的良好的着色性; 和多异氰酸酯,多异硫氰酸酯或含有至少一个异硫氰酸酯基团的异氰酸酯单体; 和具有两个或更多个活性氢基团的单体,例如多硫醇,多胺和多元醇。 本发明还提供了用于制备组合物并固化组合物以形成树脂产品的特殊方法。

Patent Agency Ranking