Two stage cure two component coating composition containing hydroxyl butyl acrylate polymers
    1.
    发明申请
    Two stage cure two component coating composition containing hydroxyl butyl acrylate polymers 审中-公开
    两阶段固化双组分涂料组合物,含羟基丙烯酸丁酯聚合物

    公开(公告)号:US20060051594A1

    公开(公告)日:2006-03-09

    申请号:US11248802

    申请日:2005-10-12

    IPC分类号: C07C69/52 B32B27/40

    摘要: An acrylic oligomer useful in a two stage curing coating composition having a weight average molecular weight of 100 to 3000, a polydispersity of 1.01 to 1.7 and one or more reactive functionalities reactive with isocyanate groups and having 7.0 to 40.0 weight percent, based on the weight of the acrylic oligomer, of hydroxyl moieties wherein at least 40.0 to 70.0 weight percent of the hydroxyl moieties are provided by hydroxy butyl acrylate and the remaining hydroxyl moieties are provided by fast reacting hydroxyl constituents of hydroxy ethyl acrylate, hydroxy ethyl methacrylate or any mixtures thereof and by slow reacting hydroxyl constituents of secondary hydroxyl containing hydroxy propyl acrylate and secondary hydroxyl containing hydroxy propyl methacrylate and any mixtures thereof.

    摘要翻译: 可用于二阶段固化涂料组合物的丙烯酸低聚物,其重均分子量为100至3000,多分散性为1.01至1.7,以及一种或多种与异氰酸酯基反应的反应性官能团,并且具有7.0至40.0重量百分比,基于重量 丙烯酸低聚物的羟基部分,其中至少40.0-70.0重量%的羟基部分由丙烯酸羟基丁酯提供,其余羟基部分通过快速反应丙烯酸羟乙酯,甲基丙烯酸羟乙酯或其任何混合物的羟基成分 并通过缓慢反应含羟基丙基丙烯酸羟基成分和含羟基丙基甲基丙烯酸羟丙酯及其任何混合物的羟基成分。

    Two stage cure two component coating composition containing hydroxylbutyl acrylate polymers
    2.
    发明申请
    Two stage cure two component coating composition containing hydroxylbutyl acrylate polymers 有权
    两阶段固化双组分涂料组合物,含有丙烯酸羟丁酯聚合物

    公开(公告)号:US20050027074A1

    公开(公告)日:2005-02-03

    申请号:US10837383

    申请日:2004-04-30

    摘要: The invention is directed to a two-stage cure coating composition comprising a two component composition of a binder and a crosslinking component; the binder comprises an acrylic polymer having a weight average molecular weight of 3,000 to 50,000 and hydroxyl moieties in the range of 7.0 to 40.0 weight percent, based on the weight of the acrylic polymer; wherein at least 40.0 weight percent of the hydroxyl moieties are provided by hydroxy butyl acrylate; and the crosslinking component comprises an organic polyisocyanate; and the first stage curing of a finish of the composition on a substrate forms a water spot free finish within 90 minutes of application and the composition has a pot life of less than a 2 second rise in Zahn cup viscosity in 150 minutes; and the invention also is directed to a method of producing a finish on a substrate utilizing the two component coating composition which comprises forming a two stage cure coating composition by mixing together the above described binder component and a cross-linking component; applying a layer of the coating composition over the substrate; first stage curing the layer on the substrate to a water spot free finish; and second stage curing the first stage cured layer on the substrate into a finish having excellent appearance and excellent physical properties.

    摘要翻译: 本发明涉及包含粘合剂和交联组分的双组分组合物的两阶段固化涂料组合物; 粘合剂包含基于丙烯酸类聚合物的重量的重均分子量为3,000至50,000的丙烯酸聚合物和7.0至40.0重量%的羟基部分; 其中至少40.0重量%的羟基部分由丙烯酸羟基丁酯提供; 并且所述交联组分包含有机多异氰酸酯; 并且组合物在基材上的第一阶段固化在施用90分钟内形成无水斑结晶,并且组合物在150分钟内具有小于2秒钟的Zahn杯粘度上升的适用期; 本发明还涉及使用双组分涂料组合物在基材上生产精饰的方法,该组合物包括通过将上述粘合剂组分和交联组分混合在一起而形成两阶段固化涂料组合物; 将一层涂料组合物涂覆在基材上; 第一阶段将基材上的层固化成无水点光洁度; 第二阶段将基材上的第一阶段固化层固化成具有优异外观和优异物理性能的表面。

    Method for making contact lenses
    3.
    发明申请
    Method for making contact lenses 审中-公开
    隐形眼镜的制作方法

    公开(公告)号:US20050056954A1

    公开(公告)日:2005-03-17

    申请号:US10936031

    申请日:2004-09-08

    IPC分类号: B29C35/08 B29D11/00

    摘要: The instant invention pertains to a method and a fluid composition for producing contact lenses with relatively high edge quality and with relatively high precision and fidelity in reproducing a desired lens design. The method of the invention involves: a mold which has a first mold half with a first molding surface and a second mold half with a second molding surface, wherein the first and second mold halves are configured to receive each other such that the cavity is formed between the first and second molding surfaces which define the opposite two surfaces of a contact lens to be produced; a spatial limitation of actinic radiation to define the edge of the contact lens to be produced; and addition of a radical scavenger in a fluid composition comprising a lens-forming material to reduce substantially the crosslinking/polymerizing, caused by diffused, scattered and/or reflected incident actinic radiation, of the fluid composition outside of and around the spatial limitation of actinic radiation.

    摘要翻译: 本发明涉及一种用于制造具有相对高的边缘质量并且在再现期望的透镜设计时具有相对高的精度和保真度的隐形眼镜的方法和流体组合物。 本发明的方法包括:模具,其具有具有第一模制表面的第一模具半部和具有第二模制表面的第二模具半部,其中第一和第二半模构造成彼此接收,使得形成空腔 在限定待制造的隐形眼镜的相对的两个表面的第一和第二模制表面之间; 光化辐射的空间限制,以限定要产生的隐形眼镜的边缘; 以及在包含透镜形成材料的流体组合物中添加自由基清除剂,以减少由光化学的空间限制之外和周围的流体组合物的扩散,散射和/或反射入射光化辐射引起的交联/聚合 辐射。

    Method for making contact lenses
    4.
    发明申请
    Method for making contact lenses 审中-公开
    隐形眼镜的制作方法

    公开(公告)号:US20070037897A1

    公开(公告)日:2007-02-15

    申请号:US11500721

    申请日:2006-08-08

    IPC分类号: B29D11/00 G02B1/04

    摘要: The instant invention pertains to a method and a fluid composition for producing contact lenses with improved lens quality and with increased product yield. The method of the invention involves adding a non-crosslinkable hydrophilic polymer into a fluid composition including a lens-forming material in an amount sufficient to reduce an averaged mold separation force by at least about 40% in comparison with that without the non-crosslinkable hydrophilic polymer and to provide a disparity of about 10 N or less in mold separation force. The non-crosslinkable hydrophilic polymer has a limited miscibility with the lens-forming material low enough to successfully and timely form an intact interfacial film with a sufficient thickness at an interface between the mold and the fluid composition therein, and has a structure that minimizes entanglement of the non-crosslinkable hydrophilic polymer in the interfacial film with the polymer matrix of the formed lens.

    摘要翻译: 本发明涉及一种用于制造具有改善的镜片质量和增加的产品产量的隐形眼镜的方法和流体组合物。 本发明的方法包括将不可交联的亲水性聚合物添加到包含透镜形成材料的流体组合物中,该透镜形成材料的量足以将平均的模具分离力减小至少约40%,与没有不可交联的亲水性 并且在模具分离力中提供约10N或更小的差异。 不可交联的亲水性聚合物与透镜形成材料的混溶性有限,足够低以在模具和其中的流体组合物之间的界面处成功地及时地形成具有足够厚度的完整界面膜,并且具有最小化缠结的结构 的界面膜中的不可交联的亲水聚合物与形成的透镜的聚合物基体。

    Continuous process for production of polymeric materials
    5.
    发明申请
    Continuous process for production of polymeric materials 有权
    生产聚合物材料的连续工艺

    公开(公告)号:US20060241242A1

    公开(公告)日:2006-10-26

    申请号:US11365546

    申请日:2006-03-01

    IPC分类号: C08F297/08

    摘要: The invention provides a continuous-flow process for producing a polymeric material. The process of the invention comprises the steps of: introducing at least two solutions, each comprising one or more reactants, into a microreactor to mix the two solutions to form a reacting solution, wherein the one or more reactants are selected from the group consisting of a monomer, an initiator, a coupling agent, a prepolymer, a macromer, and mixtures thereof; feeding continuously the reacting solution into a flow-through polymerization reactor in a coil form, wherein the flow-through polymerization reactor is capable of providing a residence time sufficient for (co)polymerizing the reactants to form a polymer with a desired polydispersity, wherein the flow-through polymerization reactor is immersed in an ultrasonic bath to minimize or substantially eliminate unwanted high-molecular-weight fractions of the polymer.

    摘要翻译: 本发明提供了用于生产聚合物材料的连续流动方法。 本发明的方法包括以下步骤:将至少两种各自包含一种或多种反应物的溶液引入微反应器以混合两种溶液以形成反应溶液,其中所述一种或多种反应物选自 单体,引发剂,偶联剂,预聚物,大分子单体及其混合物; 将反应溶液连续进料到线圈形式的流通聚合反应器中,其中流通聚合反应器能够提供足够的(共)聚合反应物以形成具有所需多分散性的聚合物的停留时间,其中 将流通聚合反应器浸入超声波浴中以最小化或基本上消除聚合物的不需要的高分子量级分。

    Crosslinkable polyurea prepolymers
    6.
    发明申请
    Crosslinkable polyurea prepolymers 有权
    可交联聚脲预聚物

    公开(公告)号:US20050113549A1

    公开(公告)日:2005-05-26

    申请号:US10991124

    申请日:2004-11-17

    摘要: The present invention provides a water-soluble crosslinkable polyurea prepolymer. The crosslinkable polyurea prepolymer of the invention is prepared by reacting an amine- or isocyanate-capped polyurea with a multifunctional compound having at least one one ethylenically unsaturated group and a function group coreactive with the capping amine or isocyanate groups of the amine- or isocyanate-capped polyurea. The amine- or isocyanate-capped polyurea is a copolymerization production of: (a) at least one poly(oxyalkylene)diamine, (b) optionally at least one organic di- or poly-amine, (c) optionally at least one diisocyanate, and (d) at least one polyisocyanate. The crosslinkable polyurea prepolymer of the invention can find use in economically producing contact lenses which have durable, highly elastic soft contact lenses with desired physical properties. In addition, the present invention provides method for making a medical device, preferably an ophthalmic device, more preferably a contact lens.

    摘要翻译: 本发明提供水溶性交联性聚脲预聚物。 本发明的可交联聚脲预聚物是通过使胺或异氰酸酯封端的聚脲与具有至少一个烯键式不饱和基团的多官能化合物和与胺或异氰酸酯封端的聚脲的封端胺或异氰酸酯 - 封端聚脲。 胺或异氰酸酯封端的聚脲是:(a)至少一种聚(氧化烯)二胺,(b)任选至少一种有机二胺或多胺,(c)任选至少一种二异氰酸酯, 和(d)至少一种多异氰酸酯。 本发明的可交联聚脲预聚物可用于经济地生产具有所需物理性能的耐久,高弹性软性隐形眼镜的隐形眼镜。 此外,本发明提供了制造医疗装置,优选眼科装置,更优选隐形眼镜的方法。