Resist composition
    2.
    发明申请
    Resist composition 审中-公开
    抗蚀组成

    公开(公告)号:US20050202345A1

    公开(公告)日:2005-09-15

    申请号:US11124214

    申请日:2005-05-09

    Abstract: A resist composition which can easily form a resist pattern excellent in transparency for vacuum ultraviolet rays such as an F2 excimer laser or the like and dry etching characteristics and further excellent in sensitivity, resolution, flatness, thermal resistance and the like, is provided. The resist composition, characterized by comprising (A) a fluorine-containing polymer having an acidic group blocked with a blocking group containing a cycloalkyl group, an organic group having one or more of cycloalkyl groups, a bicycloalkyl group or the like, (B) an acid generating compound capable of generating an acid by irradiation with a light, and (C) an organic solvent.

    Abstract translation: 能容易地形成例如F 2激子等真空紫外线透明性优异的抗干蚀剂组合物和干蚀刻特性,并且灵敏度,分辨率,平坦度,耐热性更好 等等。 抗蚀剂组合物,其特征在于,包含(A)具有被含有环烷基的封端基封闭的酸性基团的含氟聚合物,具有一个或多个环烷基的有机基团,双环烷基等,(B) 能够通过光照射产生酸的酸产生化合物,和(C)有机溶剂。

    Resin composition and melt-extruded article formed therefrom
    4.
    发明授权
    Resin composition and melt-extruded article formed therefrom 失效
    树脂组合物和由其形成的熔融挤出制品

    公开(公告)号:US5506297A

    公开(公告)日:1996-04-09

    申请号:US352801

    申请日:1984-12-01

    CPC classification number: C08L29/04 C08L23/26 C08L71/02

    Abstract: Resin compositions, melt-extruded articles, oriented articles and packaging materials for foods obtained from these articles are disclosed. The resin composition includes: (a) from 40 to 80% by weight of a PVA (A) having a degree of saponification of from 60 to 95 mole % by weight, (b) from 5 to 40% by weight of EVOH (B), (c) from 1 to 15% by weight of a thermoplastic resin (C) having a softening temperature not higher than 130.degree. C. and (d) from 5 to 15% by weight of a PEG (D), the total of (A), (B), (C) and (D) being 100% by weight.

    Abstract translation: 公开了从这些制品获得的食品的树脂组合物,熔融挤出制品,取向制品和包装材料。 树脂组合物包括:(a)40至80重量%的皂化度为60至95摩尔%的PVA(A),(b)5至40重量%的EVOH(B ),(c)1〜15重量%的软化温度不高于130℃的热塑性树脂(C)和(d)5〜15重量%的PEG(D),总计 (A),(B),(C)和(D)为100重量%。

    Removal of base residues from poly(vinyl alcohol) reaction-slurries
    6.
    发明授权
    Removal of base residues from poly(vinyl alcohol) reaction-slurries 失效
    从聚(乙烯醇)反应浆液中除去碱残留物

    公开(公告)号:US5425879A

    公开(公告)日:1995-06-20

    申请号:US143762

    申请日:1993-11-01

    Inventor: Richard A. Hayes

    CPC classification number: C08F6/24 C08F6/02 C08F8/12

    Abstract: Metallic, ash-producing residues which remain in poly(vinyl alcohol) polymer after its preparation from poly(vinyl acetate) are removed by a process which involves contacting a slurry of the poly(vinyl alcohol) polymer, after preparation and before polymer isolation, with ion-exchange resin particles, followed by removal of the ion-exchange resin particles from the poly(vinyl alcohol) polymer particles utilizing size or weight differences between them. The poly(vinyl alcohol) polymer remains in the solid state throughout, avoiding dissolution and the need for re-precipitation.

    Abstract translation: 在聚(乙烯醇)聚合物制备之后残留在聚(乙烯醇)聚合物中的金属,产生灰分的残余物通过涉及使聚(乙烯醇)聚合物的浆料在制备之后和聚合物分离之前接触的方法除去, 使用离子交换树脂颗粒,然后利用它们之间的尺寸或重量差异从聚(乙烯醇)聚合物颗粒中除去离子交换树脂颗粒。 聚(乙烯醇)聚合物始终保持固体状态,避免溶解和需要再沉淀。

    Linear addition polymer with hyperpolarizable side groups

    公开(公告)号:US4999401A

    公开(公告)日:1991-03-12

    申请号:US171550

    申请日:1988-03-22

    CPC classification number: C09K19/3852 C08F20/36 C08F20/60 G02F1/3617

    Abstract: A linear addition polymer having sidegroups which may be coupled to it or not through a spacer and have a molecular hyperpolarizability .beta. of at least 10.sup.-38 m.sup.4 /V, characterized in that the recurring units of the polymer correspond to the formula ##STR1## wherein X represents a hydrogen atom or a lower alkyl group and m=1 or optionally 0, wherewhen m-1Y represents a ##STR2## group and R has the meaning of (a) a hyperpolarizable group having a molecular hyperpolarizability .beta. of at least 10.sup.-38 m.sup.4 /V, in the presence or not of a spacer, and optionally along with(b) a mesogenic group in the presence or not of a spacer, and/or(c) a hydrogen atom or a substituted or unsubstituted organic group having not more than 30 carbon atoms, andwhen m=0Y represents a --CN, a substituted or unsubstituted phenyl group or a group of the formula --OR.sub.1 or --CH.sub.2 OR.sub.1, wherein R.sub.1 has the meaning of a hydrogen atom or a substituted or unsubstituted aliphatic group having not more than 20 carbon atoms, provided thatat least 10% of the recurring units in the polymer contain a hyperpolarizable group having a molecular hperpolarizability .beta. of at least 10.sup.-38 m.sup.4 /V,at the most 40% of the recurring units in the polymer contain a mesogenic group, andthat the quotient of the degree of substitution of the recurring units with a group having a molecular hyperpolarizability .beta. of at least 10.sup.-38 m.sup.4 /V and the average molecular weight of R with the meaning given under b and c amounts to at least 5.times.10.sup.-4, a non-linear optical medium thereof oriented in an electric field and electro-optical laminates comprising such a non-linear optical medium.

    Process for producing a low water content PVA hydrogel
    9.
    发明授权
    Process for producing a low water content PVA hydrogel 失效
    低水含量PVA水凝胶的制造方法

    公开(公告)号:US4988761A

    公开(公告)日:1991-01-29

    申请号:US343468

    申请日:1989-04-26

    CPC classification number: C08J3/03 A61L27/16 C08J3/09 C08J2329/04

    Abstract: The present invention relates to a method of producing polyvinyl alcohol hydrogel characterized by the following features: the production process consists of a low-temperature processing stage in which the solution of polyvinyl alcohol with a polymerization degree over 1200 is processed at a low temperature so that polyvinyl alcohol is gelated, and a high-temperature processing stage in which the polyvinyl alcohol gelated int he low-temperature processing stage is dried, then processed at higher than 100.degree. C.; in this way, polyvinyl alcohol hydrogel with a saturated water content lower than 40 wt % is obtained. The hydrogels of this invention are useful for providing improved artificial articular cartilage for replacement of cartilage in the human body.

    Polyvinyl alcohol derivatives containing pendant vinylic monomer
reaction product units bound through ether groups and hydrogel contact
lenses made therefrom
    10.
    发明授权
    Polyvinyl alcohol derivatives containing pendant vinylic monomer reaction product units bound through ether groups and hydrogel contact lenses made therefrom 失效
    含乙烯基单体反应产物单元的聚乙烯醇衍生物通过醚基和水凝胶隐形眼镜制成

    公开(公告)号:US4978713A

    公开(公告)日:1990-12-18

    申请号:US133575

    申请日:1987-12-16

    CPC classification number: G02B1/043 C08F290/12

    Abstract: A contact lens of a crosslinked, organic aprotic solvent insoluble, substantially transparent polymer of a derivative of a polyvinyl alcohol having a weight average molecular weight of at least about 2,000, containing an effective amount between about 0.1 to 90 percent, based on the number of hydroxyl groups on said polyvinyl alcohol, of a crosslinked addition reaction product of units of the formula ##STR1## in the presence or absence of a polymerizable vinylic monomer whereinR.sub.1 is a divalent aliphatic, cycloaliphatic, arylene, aralkylene, alkarylene or heterocyclic group;A is --O--, --NH-- or ##STR2## where R" is hydrogen or lower alkyl and A' is a direct bond or A is a direct bond and A' is --O-- or --O--CH.sub.2 --;R.sub.2 is hydrogen or methyl; andR.sub.3 is hydrogen, methyl or --COOR.sub.4 where R.sub.4 is hydrogen or lower alkyl with the proviso that if R.sub.2 is methyl, R.sub.3 is hydrogen.

    Abstract translation: 一种交联的有机非质子溶剂不溶性,基本透明的聚乙烯醇衍生物的重均分子量为至少约2,000的隐形眼镜,其含量为约0.1-90% 在存在或不存在可聚合乙烯基单体的情况下,所述聚乙烯醇上的羟基,具有下式的单元的交联加成反应产物,其中R 1是二价脂族,脂环族,亚芳基,亚芳基,亚烷基或杂环基; A是-O-,-NH-或者其中R“是氢或低级烷基,A'是直接键或A是直接键,A'是-O-或-O-CH 2 - ; R2是氢或甲基; 并且R 3是氢,甲基或-COOR 4,其中R 4是氢或低级烷基,条件是如果R 2是甲基,则R 3是氢。

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