Process and composition for generation of acid
    41.
    发明授权
    Process and composition for generation of acid 失效
    生成酸的方法和组成

    公开(公告)号:US5914213A

    公开(公告)日:1999-06-22

    申请号:US944284

    申请日:1997-10-06

    CPC分类号: G03C1/73 B41M5/30 G03F7/0045

    摘要: A process for generation of acid uses a medium comprising a first acid-generating component capable of generating a first acid, and a secondary acid generator, this secondary acid generator being capable of thermal decomposition to form a secondary acid, the thermal decomposition of the secondary acid generator being catalyzed by the first acid. At least part of the medium is exposed to so as to cause formation of the first acid from the first acid-generating component; and the medium is then heated to cause, in the exposed part of the medium, acid-catalyzed thermal decomposition of the secondary acid generator and formation of the secondary acid. The secondary acid generator has a first site bearing a first leaving group and a second site bearing a second leaving group, the first leaving group being capable of protonation by the first acid, with expulsion of the first leaving group to form a cation which electrophilically adds to an unsaturated reagent bearing a proton at the site of addition and a proton-containing nucleophilic grouping at an adjacent site, following which said proton on the reagent is lost and the second leaving group is displaced by said nucleophilic grouping, the second leaving group, in combination with a proton, forming the secondary acid. Preferred variants of the process are of the types described in U.S. Pat. Nos. 5,286,612; 5,334,489; 5,395,736; 5,441,850 and 5,453,345.

    摘要翻译: 酸的制造方法使用包含能够产生第一酸的第一产酸成分的培养基和二次酸发生剂,该二次酸发生剂能够热分解形成二次酸,二次酸的热分解 酸发生剂由第一种酸催化。 介质的至少一部分被暴露以便从第一产酸组分形成第一种酸; 然后将介质加热以在介质的暴露部分中引起二次酸发生器的酸催化热分解和二次酸的形成。 二次酸发生器具有带有第一离去基团的第一位点和带有第二离去基团的第二位点,第一离去基团能够被第一酸质子化,同时排出第一离去基团以形成亲电子加成的阳离子 涉及在相邻位置处带有质子的不饱和试剂和在相邻位置处含质子的亲核基团,随后试剂上的所述质子损失,第二离去基团被所述亲核基团置换,第二离去基团, 与质子结合形成二次酸。 该方法的优选变体是在美国专利No. 第5,286,612号; 5,334,489; 5,395,736 5,441,850和5,453,345。

    High refractive index polymers
    44.
    发明授权
    High refractive index polymers 失效
    高折射率聚合物

    公开(公告)号:US5132430A

    公开(公告)日:1992-07-21

    申请号:US721191

    申请日:1991-06-26

    IPC分类号: C07D209/88

    CPC分类号: C07D209/88

    摘要: Ethylenically unsaturated polymerizable acrylic (or methacrylic) monomers having pendant halogenated carbazole moieties, useful for the production of high refractive index polymers, are disclosed. The monomers are useful for the bonding of optical elements in the fabrication of optical devices.

    摘要翻译: 公开了可用于生产高折射率聚合物的具有侧卤化咔唑部分的烯属不饱和可聚合丙烯酸(或甲基丙烯酸)单体。 单体可用于光学元件的制造中的光学元件的结合。

    Monomers containing bis(trifluoromethyl)biphenylene radicals
    45.
    发明授权
    Monomers containing bis(trifluoromethyl)biphenylene radicals 失效
    含有双(三氟甲基)亚联苯基的单体

    公开(公告)号:US4628125A

    公开(公告)日:1986-12-09

    申请号:US578694

    申请日:1984-02-09

    IPC分类号: C08G63/682 C07C39/15

    CPC分类号: C08G63/6826

    摘要: A class of polyesters comprising recurring units having certain bis(trifluoromethyl)biphenylene radicals is disclosed. The polyesters exhibit favorable solubility properties in certain organic solvents so as to facilitate the production of the polyesters via polycondensation methods to film- and fiber-forming molecular weights. Monomeric compounds comprising a bis(trifluoromethyl)biphenylene radical and useful for the production of the polyesters are also disclosed.

    摘要翻译: 公开了一类包含具有某些双(三氟甲基)亚联苯基的重复单元的聚酯。 聚酯在某些有机溶剂中表现出良好的溶解性,从而有助于通过缩聚方法将聚酯生产成膜和成纤分子量。 还公开了包含双(三氟甲基)亚联苯基并且可用于制备聚酯的单体化合物。

    Polyesters containing bis(trifluoromethyl)biphenylene radicals
    46.
    发明授权
    Polyesters containing bis(trifluoromethyl)biphenylene radicals 失效
    含有双(三氟甲基)亚联苯基的聚酯

    公开(公告)号:US4433132A

    公开(公告)日:1984-02-21

    申请号:US414473

    申请日:1982-09-02

    CPC分类号: C08G63/6826

    摘要: A class of polyesters comprising recurring units having certain bis(trifluoromethyl)biphenylene radicals is disclosed. The polyesters exhibit favorable solubility properties in certain organic solvents so as to facilitate the production of the polyesters via polycondensation methods to film- and fiber-forming molecular weights. Monomeric compounds comprising a bis(trifluoromethyl)biphenylene radical and useful for the production of the polyesters are also disclosed.

    摘要翻译: 公开了一类包含具有某些双(三氟甲基)亚联苯基的重复单元的聚酯。 聚酯在某些有机溶剂中表现出良好的溶解性,从而有助于通过缩聚方法将聚酯生产成膜和成纤分子量。 还公开了包含双(三氟甲基)亚联苯基并且可用于制备聚酯的单体化合物。

    Polymers containing decahalopentacyclodecyl groups
    47.
    发明授权
    Polymers containing decahalopentacyclodecyl groups 失效
    聚合物含有十氢五环癸基

    公开(公告)号:US4426505A

    公开(公告)日:1984-01-17

    申请号:US352085

    申请日:1982-02-25

    申请人: Richard A. Minns

    发明人: Richard A. Minns

    摘要: New polymers are disclosed comprising recurring units of the formula ##STR1## wherein R is hydrogen or lower alkyl containing from 1 to 5 carbon atoms, L is a divalent linking group, and each X is independently chloro or bromo. The polymers are capable of providing a relatively high index of refraction in combination with a relatively high Abbe number and can be utilized as raw materials in the manufacture of plastic optical articles or elements such as lenses or prisms and in the manufacture of optical films and coatings.

    摘要翻译: 公开了新的聚合物,其包含式IMA的重复单元,其中R是氢或含有1至5个碳原子的低级烷基,L是二价连接基团,并且每个X独立地是氯或溴。 聚合物能够提供相对较高的折射率与较高的阿贝数相结合,并且可用作塑料光学制品或诸如透镜或棱镜的元件的制造中的原材料,并且在制造光学膜和涂层 。