(Co)polymers by photopolymerization
    2.
    发明授权
    (Co)polymers by photopolymerization 失效
    (Co)聚合物

    公开(公告)号:US06251962B1

    公开(公告)日:2001-06-26

    申请号:US09367562

    申请日:1999-08-16

    申请人: Vincent Desobry

    发明人: Vincent Desobry

    IPC分类号: C08F250

    CPC分类号: C08F20/12 B33Y70/00 C08F2/46

    摘要: A Process for the selective preparation acrylate- or methacrylate-homo- or acrylate- or methacrylate-co-oligomers with a weight average molecular weight (Mw) from 1000 to 20000, a polydispersity≦3 and a conversion of the monomers to polymers greater than or equal to 70%, or for the selective preparation of polyvinylacetate and its hydrolysis product polyvinylalcohol with a weight average molecular weight (Mw) from 1000 to 25000, a polydispersity≦3 and a conversion of the monomers to polymers greater than or equal to 70%, is characterized in that a mixture of the corresponding monomers is irradiated in the presence of a specific photoinitiator or photoinitiator mixture at a temperature from −20 to 70° C. in an inert solvent or inert solvent mixture, with light of a wavelength from 305 to 450 nm, wherein the contents of monomers in the reaction mixture is up to 70%.

    摘要翻译: 选择性制备重均分子量(Mw)为1000-20000的丙烯酸酯或甲基丙烯酸酯 - 均聚物或丙烯酸酯或甲基丙烯酸酯 - 共 - 低聚物的方法,多分散性<= 3,单体与聚合物的转化率更高 或者用于选择性制备重均分子量(Mw)为1000至25000的聚乙酸乙烯酯及其水解产物聚乙烯醇,多分散性<= 3,单体与聚合物的转化率大于或等于 至70%,其特征在于,在特定的光引发剂或光引发剂混合物的存在下,在-20至70℃的温度下,在惰性溶剂或惰性溶剂混合物中照射相应单体的混合物, 波长为305至450nm,其中反应混合物中单体的含量高达70%。

    Process for the preparation of organometallic compounds
    3.
    发明授权
    Process for the preparation of organometallic compounds 失效
    制备有机金属化合物的方法

    公开(公告)号:US4992572A

    公开(公告)日:1991-02-12

    申请号:US258544

    申请日:1988-10-17

    CPC分类号: C07F15/02 Y10S526/943

    摘要: There is disclosed a process for the preparation of compounds of formula I[R Fe R.sup.2 ].sub.q.sup..sym. X.sup.q.crclbar. (I),wherein R is an anion of formula C.sub.5 H.sub.4 R.sup.1 or C.sub.9 H.sub.7, R.sup.1 is hydrogen, C.sub.1 -C.sub.6 -alkyl or halogen, R.sup.2 is a .pi.-arene, X is an anion of valency q and q is 1, 2 or 3, by reacting ferrocene or a ferrocene derivative (C.sub.5 H.sub.4 R.sup.3)Fe(C.sub.5 H.sub.4 R.sup.1) or (C.sub.9 H.sub.7).sub.2 Fe, in which R.sup.3 has one of the meanings of R.sup.1, with at least one mole of a .pi.-arene R.sup.2, followed by the optional replacement of the anion X.sup.q.crclbar. in a manner known per se, the reaction of the ferrocene or ferrocene derivative being carried out in the presence of(a) at least 1.2 mol of a mixture of Al trihalide and Zr(IV) or Hf(IV) tetrahalide, in the presence or absence of a metallic reducing agent, such that at least 0.2 mol of Zr(IV) or Hf(IV) tetrahalide and at least 0.1 mol of Al trihalide are present, or of(b) at least 1.0 mol of a Zr(IV) or Hf(IV) tetrahalide as sole Lewis acid in conjunction with at least 1.0 mol of a metallic reducing agent, the amounts being based in each case on 1 mol of ferrocene or a ferrocene derivative.The compounds of formula I containing non-nucleophilic anions can be used as photoinitiators for cationically polymerizable compounds.

    摘要翻译: 公开了制备式I化合物[R Fe R2] q(+)Xq( - )(I)的方法,其中R是式C5H4R1或C9H7的阴离子,R1是氢,C1-C6烷基 或卤素,R 2是一个芳基,X是化合价q和q为1,2或3的阴离子,通过使二茂铁或二茂铁衍生物(C5H4R3)Fe(C5H4R1)或(C9H7)2Fe,其中R3具有 R1的含义之一为至少1摩尔的仲芳基R2,然后以本身已知的方式任选地取代阴离子Xq( - ),二茂铁或二茂铁衍生物的反应在 (a)在存在或不存在金属还原剂的情况下,存在(a)至少1.2摩尔Al三卤化物和Zr(IV)或Hf(IV)四卤化物的混合物,使得至少0.2摩尔的Zr(IV) 或四氢卤化铪(IV)和至少0.1摩尔的三卤化铝,或(b)至少1.0摩尔的Zr(IV)或Hf(IV)四卤化物作为唯一的路易斯酸与至少1.0摩尔的 金属还原剂,金额 在每种情况下基于1摩尔二茂铁或二茂铁衍生物。 含有非亲核性阴离子的式I化合物可用作阳离子聚合性化合物的光引发剂。

    Process for the preparation of organometallic compounds
    4.
    发明授权
    Process for the preparation of organometallic compounds 失效
    制备有机金属化合物的方法

    公开(公告)号:US5247107A

    公开(公告)日:1993-09-21

    申请号:US809216

    申请日:1991-12-16

    IPC分类号: C07F15/02

    CPC分类号: C07F15/02

    摘要: There is disclosed a process for the preparation of compounds of formula I[R Fe R.sup.2 ].sub.q.sup..sym. X.sup.q.crclbar. (I),wherein R is an anion of formula C.sub.5 H.sub.4 R.sup.1 or C.sub.9 H.sub.7, R.sup.1 is hydrogen, C.sub.1 -C.sub.6 -alkyl or halogen R.sup.2 is a .pi.-arene, X is an anion of valency q and q is 1, 2 or 3, by reacting ferrocene or a ferrocene derivative (C.sub.5 H.sub.4 R.sup.3)Fe(C.sub.5 H.sub.4 R.sup.1) or (C.sub.9 H.sub.7).sub.2 Fe, in which R.sup.3 has one of the meanings of R.sup.1, with at least one mole of a .pi.-arene R.sup.2, followed by the optional replacement of the anion X.sup.q.crclbar. in a manner known per se, the reaction of the ferrocene or ferrocene derivative being carried out in the presence ofa) at least 1.2 mol of a mixture of Al trihalide and Zr(IV) or Hf(IV) tetrahalide, in the presence or absence of a metallic reducing agent, such that at least 0.2 mol of Zr(IV) or Hf(IV) tetrahalide and at least 0.1 mol of Al trihalide are present, or ofb) at least 1.0 mol of a Zr(IV) or Hf(IV) tetrahalide as sole Lewis acid in conjunction with at least 1.0 mol of a metallic reducing agent, the amounts being based in each case on 1 mol of ferrocene or a ferrocene derivative.The compounds of formula I containing non-nucleophilic anions can be used as photoinitiators for cationically polymerisable compounds.

    摘要翻译: 公开了制备式I化合物[R Fe R2] q(+)Xq( - )(I)的方法,其中R是式C5H4R1或C9H7的阴离子,R1是氢,C1-C6烷基 或卤素R 2是π-芳烃,X是通过使二茂铁或二茂铁衍生物(C5H4R3)Fe(C5H4R1)或(C9H7)2Fe)反应的化合价q和q为1,2或3的阴离子,其中R3具有一个 R 1的含义与至少1摩尔的仲芳基R2,然后以本身已知的方式任选地取代阴离子Xq( - ),二茂铁或二茂铁衍生物的反应在 在存在或不存在金属还原剂的情况下,存在a)至少1.2mol的三卤化铝和Zr(IV)或Hf(IV)四卤化物的混合物,使得至少0.2mol的Zr(IV)或Hf (IV)和至少0.1摩尔的三卤化铝,或b)至少1.0摩尔的Zr(IV)或Hf(IV)四卤化物作为唯一的路易斯酸,以及至少1.0摩尔的金属还原 代理,金额 基于每种情况下1摩尔二茂铁或二茂铁衍生物。 含有非亲核阴离子的式I化合物可用作阳离子可聚合化合物的光引发剂。

    Fluorine-free titanocenes and the use thereof

    公开(公告)号:US5340701A

    公开(公告)日:1994-08-23

    申请号:US43237

    申请日:1993-04-06

    申请人: Vincent Desobry

    发明人: Vincent Desobry

    摘要: Fluorine-free titanocene compounds of the formula I or II ##STR1## in which both R.sub.1 radicals are preferably, independently of one another, cyclopentadienyl.sup..crclbar., which is unsubstituted or substituted by alkyl,alkoxy or --Si(R.sub.2).sub.3, and both R.sub.2 radicals are, in particular, alkyl, ##STR2## Z is --NR.sub.10 --, --0-- or --S--, Y is Cl, Br, I, CN, SCN, --O--CO--CH.sub.3, --O--CO--phenyl or --O--SO.sub.2 --CH.sub.3,n is 1 or 2,m is 0 or 1, where the sum of n and m must be 2,R.sub.3, R.sub.4 and R.sub.5 are in particular, independently of one another, hydrogen, Cl, alkyl, cycloalkyl, adamantyl, phenyl, pyrryl or biphenylyl, where these radicals are unsubstituted or substituted by alkyl, Cl, alkylthio, --NR.sub.8 R.sub.9, phenyl, phenylthio or C.sub.1 -C.sub.10 alkoxy, or R.sub.3, R.sub.4 and R.sub.5 are alkenyl, alkoxy, cycloalkoxy, phenoxy, benzyloxy, tetrahydrofurfuryloxy, alkylthio, cycloalkylthio, benzylthio or phenylthio, where R.sub.3 and R.sub.4 are not simultaneously hydrogen, andif Q is a pyrimidyl radical, at least one radical R.sub.3 or R.sub.4 is alkoxy, cycloalkoxy, phenoxy, benzyloxy, tetrahydrofurfuryloxy or alkenyloxy, andif Z is --NR.sub.10 --, R.sub.3 and R.sub.4 are Cl Br or I, both radicals R.sub.6, independently of one another, are alkyl or alkenyl or both radicals R.sub.6 together with the nitrogen atom to which they are bonded, form a morpholino radical,R.sub.7 is alkyl, cycloalkyl or phenyl,R.sub.8 is phenyl or .alpha.-tertiary C.sub.4 -C.sub.6 alkyl,R.sub.9 is, in particular, hydrogen, alkyl, cycloalkyl, phenyl or a ##STR3## radical, where, in addition, the two R.sub.9 radicals in --N(R.sub.9).sub.2 are identical or different and, together with the nitrogen atom to which they are bonded, may form a 5- or 6-membered heterocyclic ring which, in addition to the nitrogen atom, may also contain further nitrogen, oxygen or sulfur atoms,R.sub.10 is as defined for R.sub.9 or additionally, in particular, is phenyl which is unsubstituted or substituted by Cl, C.sub.1 -C.sub.12 alkyl, C.sub.1 -C.sub.10 alkoxy, C.sub.1 -C.sub.8 alkylthio, phenylthio, morpholino or --N(C.sub.1 -C.sub.4 alkyl).sub.2,X is --O--, --S--, ##STR4## methylene or ethylene, and A is C.sub.1 -C.sub.12 alkylene or --X--A--X-- is a direct bond, are suitable as photoinitiators for photopolymerisation of compounds containing ethylenically unsaturated double bonds.