Cement admixture for improved slump life
    11.
    发明申请
    Cement admixture for improved slump life 审中-公开
    改善坍落度寿命的水泥外加剂

    公开(公告)号:US20020007019A1

    公开(公告)日:2002-01-17

    申请号:US09813996

    申请日:2001-03-22

    IPC分类号: C08F020/10

    摘要: Described are polymers and cement admixtures which reduce drop in fluidity with time. Said admixture comprises at least one polymer of the present invention and at least one polymer A. The polymer of the present invention comprises side chains of which at least 10 weight-% can be cleaved in alkaline medium. The polymer of the present invention is an acrylic polymer which comprises side chains connected to the backbone by ester linkages. These side chains may be alkyl, hydroxy alkyl, cycloalkyl or polyoxyalkylene groups. Polymer A is a cement dispersing agent. The combination of polymer A with the polymer of the present invention in a weight ratio of 0.1:10-10:1, and preferably 1:10-10:1 reduces the drop in fluidity with time of cementitious compositions.

    摘要翻译: 描述的是聚合物和水泥混合物,其随时间降低流动性的下降。 所述混合物包含至少一种本发明的聚合物和至少一种聚合物A.本发明的聚合物包含侧链,其中至少10重量%可在碱性介质中裂解。 本发明的聚合物是包含通过酯键与骨架连接的侧链的丙烯酸类聚合物。 这些侧链可以是烷基,羟基烷基,环烷基或聚氧化烯基团。 聚合物A是水泥分散剂。 聚合物A与本发明聚合物的重量比为0.1:10-10:1,优选为1:10-10:1的组合减少了水泥组合物随时间的流动性的下降。

    RADIATION-CURABLE COATING COMPOSITIONS, COATED OPTICAL FIBER, RADIATION-CURABLE MATRIX FORMING MATERIAL AND RIBBON ASSEMBLY
    12.
    发明申请
    RADIATION-CURABLE COATING COMPOSITIONS, COATED OPTICAL FIBER, RADIATION-CURABLE MATRIX FORMING MATERIAL AND RIBBON ASSEMBLY 失效
    可辐射涂层组合物,涂层光纤,辐射可固化矩阵形成材料和RIBBON装配

    公开(公告)号:US20010008906A1

    公开(公告)日:2001-07-19

    申请号:US09148772

    申请日:1998-09-04

    发明人: CHANDER P. CHAWLA

    IPC分类号: C08F002/48 C08F020/10

    CPC分类号: C09D155/005 C03C25/106

    摘要: A radiation-curable, optical fiber coating composition has enhanced color stabilization and is formulated from a composition containing at least one radiation-curable oligomer or monomer. A concentration of urethane and ether linkages in the radiation-curable composition is such that a cured optical fiber coating formed from said radiation-curable composition exhibits a nullE of about 40 or less after being exposed for 96 hours to 150null C. and then for 144 hours to 180null C. Also provided is a radiation-curable optical fiber coating composition which is substantially urethane-free.

    摘要翻译: 可辐射固化的光纤涂料组合物具有增强的颜色稳定性,并由含有至少一种可辐射固化的低聚物或单体的组合物配制。 可辐射固化组合物中的聚氨酯和醚键的浓度使得由所述可辐射固化组合物形成的固化的光纤涂层在暴露于96小时至150℃之后显示约40或更小的DELTAE,然后 144小时至180℃。还提供了基本不含氨基甲酸酯的辐射固化光纤涂料组合物。

    Block copolymer
    13.
    发明申请
    Block copolymer 有权
    嵌段共聚物

    公开(公告)号:US20040034183A1

    公开(公告)日:2004-02-19

    申请号:US10381198

    申请日:2003-03-27

    IPC分类号: C08F020/10

    摘要: A block copolymer is obtained by anionic polymerization, includes two or more polymer blocks A miscible with each other, and at least one (meth)acrylic ester polymer block B immiscible with the polymer blocks A, has a ratio nullMn(Amax)/Mn(Amin)null of 2 or more, wherein the ratio nullMn(Amax)/Mn(Amin)null is the ratio of the largest number average molecular weight nullMn(Amax)null to the smallest number average molecular weight nullMn(Amin)null among the polymer blocks A, has at least one block bonding including polymer block Amax-polymer block B-polymer block Amin, and has a total content of the polymer blocks A ranging from 20 wt % to 45 wt % based on the total mass of the block copolymer. This invention provides block copolymers having two or more polymer blocks A miscible with each other and at least one (meth)acrylic ester polymer block B immiscible with the polymer blocks A and exhibiting satisfactory flexibility, melt fluidity, moldability, coatability, mechanical properties, and other properties. The block copolymers of the present invention can yield molded articles having reduced anisotropy and surface stickiness and excellent mechanical properties and pressure-sensitive adhesive compositions having excellent adhesive properties.

    摘要翻译: 通过阴离子聚合获得嵌段共聚物,包括彼此可混溶的两种或更多种聚合物嵌段A和与聚合物嵌段A不混溶的至少一种(甲基)丙烯酸酯聚合物嵌段B的比例[Mn(Amax)/ Mn (Amin)]为2以上,[Mn(Amax)/ Mn(Amin)]为最大数均分子量[Mn(Amax)]与最小数均分子量的比[Mn(Amin )]在聚合物嵌段A中具有至少一个嵌段键合,包括聚合物嵌段Amax-聚合物嵌段B-聚合物嵌段Amin,并且基于总量,聚合物嵌段A的总含量为20重量%至45重量% 质量的嵌段共聚物。 本发明提供了具有两个或更多个彼此可混溶的聚合物嵌段A和至少一个与聚合物嵌段A不混溶的(甲基)丙烯酸酯聚合物嵌段B并具有令人满意的柔性,熔融流动性,成型性,可涂布性,机械性能和 其他属性。 本发明的嵌段共聚物可以得到各向异性,表面粘着性降低,机械性能优异,粘合性优异的粘合剂组合物的成型体。

    Highly water-absorptive ophthalmic lens and method of producing the same
    15.
    发明申请
    Highly water-absorptive ophthalmic lens and method of producing the same 审中-公开
    高吸水性眼科镜片及其制造方法

    公开(公告)号:US20030218717A1

    公开(公告)日:2003-11-27

    申请号:US10443540

    申请日:2003-05-21

    申请人: MENICON CO., LTD.

    发明人: Masuji Ichihara

    摘要: A highly water-absorptive ophthalmic lens which is formed of a macromolecular material including vinyl alcohol unit as a major component and whose water content is in a range of 50-90%, wherein: the macromolecular material is a cross-linked vinyl alcohol-allyl alcohol/halogenated-alkyl ethylene copolymer which includes allyl alcohol unit and/or halogenated-alkyl ethylene unit, together with the vinyl alcohol unit; and the ophthalmic lens has a ratio of a dimensional change of less than null2% and being free from whitening after (A) the ophthalmic lens has been subjected to three cycles of a freezing-thawing operation wherein the ophthalmic lens formed of the macromolecular material is left at a temperature of not higher than null10null C. for not less than twelve hours, and is subsequently left at a temperature in a range from 15null C. to 30null C. for not less than six hours, and/or (B) the ophthalmic lens has been kept at a temperature in a range from 1null C. to 9null C. for three months.

    摘要翻译: 一种高吸水性眼科镜片,其由包含乙烯醇单元作为主要成分并且水含量在50-90%范围内的高分子材料形成,其中:高分子材料是交联的乙烯醇 - 烯丙基 包括烯丙醇单元和/或卤代烷基乙烯单元的醇/卤代烷基乙烯共聚物与乙烯醇单元一起; 并且眼用透镜在(A)眼用透镜已进行三次冷冻操作循环之后具有小于±2%的尺寸变化比率且不变白,其中由高分子材料形成的眼镜片 在不高于-10℃的温度下放置不少于12小时,然后在15℃至30℃的温度下放置不少于6小时,和/ 或(B)将眼科镜片保持在1℃至9℃的温度下三个月。

    Process for producing fine cured-resin particle
    16.
    发明申请
    Process for producing fine cured-resin particle 审中-公开
    生产精细固化树脂颗粒的方法

    公开(公告)号:US20030114622A1

    公开(公告)日:2003-06-19

    申请号:US10240312

    申请日:2002-10-01

    发明人: Keizo Masawaki

    IPC分类号: C08F020/10

    CPC分类号: C08J3/26

    摘要: The present invention relates to a method of manufacturing a cured resin fine powder having spherical particles of particle diameter 10 nullm or less, by curing at ambient temperature or with heating, in the presence of a curing agent and if necessary an accelerator, an O/W type aqueous thermosetting resin dispersion that has been obtained by uniformly dispersing a liquid radical polymerization type thermosetting resin in an aqueous phase, and then removing water, washing if desired, and drying. With the cured resin fine powder of the present invention, by appropriately selecting and combining the raw materials used, the refractive index, oil absorption and so on of the cured resin fine powder can be controlled over broad ranges, and moreover the degree of hydrophilicity and the degree of lipophilicity can be adjusted; the cured resin fine powder can be variously used, for example, as a crack preventing agent or a low shrinkage agent, or as a modifier such as an agent for reducing residual monomer in a polymer.

    摘要翻译: 本发明涉及通过在环境温度下或加热下固化的固化剂和必要时加速剂O / O的固化树脂细粉末的制造方法,该固化树脂细粉末具有粒径为10微米或更小的球形颗粒, W型水性热固性树脂分散体,其通过将液体自由基聚合型热固性树脂均匀分散在水相中,然后除去水,如果需要进行洗涤和干燥而获得。 对于本发明的固化树脂细粉末,通过适当选择和组合所使用的原料,固化树脂细粉末的折射率,吸油量等可以被控制在宽范围内,而且亲水性和 亲脂性程度可调; 固化树脂微粉可以各种使用,例如作为防裂剂或低收缩剂,或作为还原剂,例如聚合物中残留单体的还原剂。

    Resin molded article for optical product and light transmitting plate comprising the same
    17.
    发明申请
    Resin molded article for optical product and light transmitting plate comprising the same 失效
    用于光学产品的树脂模塑制品和包含其的透光板

    公开(公告)号:US20020004572A1

    公开(公告)日:2002-01-10

    申请号:US09818571

    申请日:2001-03-28

    IPC分类号: C08F020/10

    CPC分类号: G01M15/06

    摘要: The present invention provides a resin molded article for optical products comprising a copolymer predominantly composed of methyl methacrylate and a styrenic monomer, wherein the number of foreign bodies contained in the resin molded article having a length of 210 mm, a width of 210 mm and a thickness of 3 mm as visually examined using a strain meter is about 150 or less, which is useful for a light transmitting plate employed in a liquid crystal display device because the possibility that the display screen looks whitely turbid due to the warp of the light transmitting plate, is reduced.

    摘要翻译: 本发明提供了一种光学产品用树脂成型体,其包含主要由甲基丙烯酸甲酯和苯乙烯类单体组成的共聚物,其中包含在长度为210mm,宽度为210mm的树脂模制品中的异物数量和 使用应变计目视检查的厚度为3mm的厚度为约150以下,这对于液晶显示装置中使用的透光板是有用的,因为由于透光性的弯曲而使显示屏看起来白浊 板,减少。