Urea-containing (meth) acrylic acid derivatives of triisocyanates
    14.
    发明授权
    Urea-containing (meth) acrylic acid derivatives of triisocyanates 失效
    三异氰酸酯的含尿素(甲基)丙烯酸衍生物

    公开(公告)号:US5008436A

    公开(公告)日:1991-04-16

    申请号:US517261

    申请日:1990-05-01

    摘要: For filling and forming teeth, novel (meth)acrylic acid derivatives of triisocyanates of the formula ##STR1## wherein R.sup.1 and R.sup.2 are identical or different and stand for hydrogen or a lower alkyl radical,R.sup.3, R.sup.4 and R.sup.5 are identical or different and denote hydrogen or methyl,Y.sup.1 to Y.sup.3 are identical or different and denote divalent straight-chain or branched hydrocarbon radicals of 2 to 15 carbon atoms which may optionally include 1 to 3 oxygen bridges and which may be unsubstituted or substituted by 1 to 4 additional (meth)acryloyloxy radicals,X.sup.1 to X.sup.3 are identical or different and denote --NR.sup.1 -- or --O--, at least one of the radicals X.sup.1 to X.sup.3 denoting --NR.sup.1 --, and the ringsA and B are identical or different and may be aromatic or saturated.

    摘要翻译: 为了填充和形成牙齿,具有式(I)+ TR图像的三异氰酸酯的新的(甲基)丙烯酸衍生物,其中R 1和R 2相同或不同,代表氢或低级烷基,R 3,R 4 和R5相同或不同,表示氢或甲基,Y1至Y3相同或不同,表示2至15个碳原子的二价直链或支链烃基,其可任选包括1至3个氧桥,并且其可以是未取代的或 被1〜4个(甲基)丙烯酰氧基取代,X1〜X3相同或不同,表示-NR1-或-O-,表示-NR1-的基团X1〜X3中的至少一个,环A和B分别为 相同或不同,可以是芳族或饱和的。

    Microcapsules and their use
    20.
    发明授权
    Microcapsules and their use 失效
    微胶囊及其用途

    公开(公告)号:US5292610A

    公开(公告)日:1994-03-08

    申请号:US846812

    申请日:1992-03-06

    IPC分类号: G03F7/00 G03F7/027 G03C1/72

    摘要: Microcapsules containing at least one leuco dye, at least one photopolymerisation initiator and at least one photopolymerisable monomer corresponding to the following formulaA[--NHCO--X--L.sub.1 --(OCO--CR.sub.1 =CH.sub.2).sub.1 ].sub.mwhereinA stands for a 3- to 6-valent organic group having the following meanings:a) a saturated hydrocarbon group having 5 to 25 carbon atoms orb) ##STR1## or c) ##STR2## wherein A.sub.1, A.sub.2, R.sub.3, R.sub.4, o and p have the meanings indicated in the description,X denotes O or NR.sub.2,L.sub.1 denotes a divalent or trivalent aliphatic hydrocarbon group whose carbon chain may be interrupted by 1 to 3 oxygen atoms,R.sub.1 denotes hydrogen or methyl,R.sub.2 denotes hydrogen or C.sub.1 -C.sub.4 -alkyl,l denotes 1 or 2 andm denotes a number from 3 to 6,are distinguished by improved sensitivity.

    摘要翻译: 含有至少一种无色染料,至少一种光聚合引发剂和至少一种对应于下列通式A(-NHCO-X-L1-(OCO-CR 1 = CH 2)1)m)的可光聚合单体的微胶囊,其中A代表3- 具有以下含义的6价有机基团:a)具有5至25个碳原子的饱和烃基或b)(*化学结构*)或c)(*化学结构*)其中A1,A2,R3,R4, o和p具有说明书中所示的含义,X表示O或NR 2,L 1表示碳链可被1至3个氧原子间隔的二价或三价脂族烃基,R 1表示氢或甲基,R 2表示氢或C 1 -C 1-4 - 烷基,l表示1或2,m表示3至6的数,通过改进的灵敏度来区分。