Ansa group 4 metal bis (.mu.-substituted) aluminum complexes
    44.
    发明授权
    Ansa group 4 metal bis (.mu.-substituted) aluminum complexes 失效
    Ansa组4金属双(μ-取代)铝络合物

    公开(公告)号:US6140521A

    公开(公告)日:2000-10-31

    申请号:US330672

    申请日:1999-06-11

    摘要: Ansa bis(.mu.-substituted) Group 4 metal and aluminum compounds comprising a single Group 4 metal atom and two aluminum metal atoms corresponding to the formula: ##STR1## wherein: L' is a .pi.-bonded group,M is a Group 4 metal,J is nitrogen or phosphorus;Z is a divalent bridging group causing the complex to have an ansa structure,R' is an inert monovalent ligand;r is one or two;X independently each occurrence is a Lewis basic ligand group able to form a .mu.-bridging ligand group, and optionally the two X groups may be joined together, andA' independently each occurrence is an aluminum containing Lewis acid compound that forms an adduct with the metal complex by means of the .mu.-bridging groups, and optionally two A' groups may be joined together thereby forming a single difunctional Lewis acid containing compound, and a method of preparation comprising contacting a charge-neutral Group IV metal coordination complex having at least two Lewis basic groups with at least two molar equivalents of charge-neutral aluminum coordination complexes having Lewis acidic aluminum atoms such that at least two of the aluminum atoms of the aluminum coordination complexes bond to at least two of the Lewis basic groups of the Group IV coordination complex.

    摘要翻译: Ansa双(μ-取代的)第4族金属和铝化合物,其包含对应于下式的单个第4族金属原子和两个铝金属原子:其中:L'是π键合基团,M是第4族金属,J是 氮或磷; Z是使络合物具有ansa结构的二价桥连基团,R'是惰性单价配体; r是一两个; 独立地,X独立地是能够形成mu-桥接配体基团的路易斯碱性配体基团,并且任选地两个X基团可以连接在一起,并且A'独立地是含铝的路易斯酸化合物,其与 金属络合物,并且任选地两个A'基团可以连接在一起,从而形成单一双官能路易斯酸化合物,以及制备方法,包括使具有至少一个电荷的中性IV族金属配位络合物 两个路易斯碱性基团,其具有至少两摩尔当量的具有路易斯酸性铝原子的电荷 - 中性铝配位络合物,使得铝配位络合物的至少两个铝原子与至少两个第IV族的路易斯碱性基团键合 协调综合体

    Hydrogenation of unsaturated polymers using monocyclopentadienyl group
IV metal catalysts
    47.
    发明授权
    Hydrogenation of unsaturated polymers using monocyclopentadienyl group IV metal catalysts 失效
    使用单环戊二烯基IV金属催化剂氢化不饱和聚合物

    公开(公告)号:US5789638A

    公开(公告)日:1998-08-04

    申请号:US712660

    申请日:1996-09-13

    CPC分类号: C08C19/02 C08F8/04

    摘要: Organic compounds are hydrogenated in the presence of certain monocyclopentadienyl Group IV metal compounds. These titanium compounds are effective hydrogenation catalysts for polymers containing ethylenic unsaturation. They further provide for selective hydrogenation of ethylenic unsaturation sites in the presence of aromatic groups.

    摘要翻译: 有机化合物在某些单环戊二烯基IV族金属化合物存在下氢化。 这些钛化合物是含有烯属不饱和键的聚合物的有效氢化催化剂。 它们进一步提供了在芳族基团存在下烯键式不饱和位点的选择性氢化。

    Process of preparing cyclopentadiene and substituted derivatives thereof
    49.
    发明授权
    Process of preparing cyclopentadiene and substituted derivatives thereof 失效
    制备环戊二烯及其取代衍生物的方法

    公开(公告)号:US5414173A

    公开(公告)日:1995-05-09

    申请号:US173533

    申请日:1993-12-22

    IPC分类号: C07C1/24

    摘要: A process of preparing cyclopentadiene or substituted cyclopentadienes, such as tetramethylcyclopentadiene. The process involves contacting under reaction conditions cyclopentenol or a substituted cyclopentenol with a catalyst selected from (1) crystalline and amorphous aluminum phosphates, (2) aluminophosphate molecular sieves, and (3) silicoaluminophosphate molecular sieves. The process produces cyclopentadienes in high isolated yields.

    摘要翻译: 制备环戊二烯或取代的环戊二烯如四甲基环戊二烯的方法。 该方法包括在反应条件下使环戊烯醇或取代的环戊烯醇与选自(1)结晶和无定形磷酸铝,(2)磷酸铝分子筛和(3)硅铝磷酸盐分子筛的催化剂接触。 该方法产生高分离产率的环戊二烯。

    Production of transfer material
    50.
    发明授权
    Production of transfer material 失效
    生产转印材料

    公开(公告)号:US4254211A

    公开(公告)日:1981-03-03

    申请号:US959145

    申请日:1978-11-09

    摘要: Transfer material is prepared by applying to a substrate a layer of a photosensitive material which is insoluble but swellable in the solvent used to develop the image and whose adhesion to the substrate increases on exposure to light, imagewise exposing the material and developing the so-exposed material by treatment with a solvent fully to remove unexposed material from the substrate and, if necessary, treating the remaining areas of the exposed material to render them transferable from the substrate. In this manner the full thickness of the photosensitive material layer may be retained in the final transfer material. In particular, adhesive material may be applied to the layer photosensitive material before imagewise exposure, and the adhesive coated material imagewise exposed and developed to remove photosensitive material and adhesive in the non-exposed areas only to leave adhesive coated image indicia.

    摘要翻译: 转移材料是通过向基材施加一层感光材料,该感光材料在用于显影图像的溶剂中不溶但可溶胀,并且其对基材的粘合性在曝光时增加,成像曝光材料并显影出如此曝光 通过用溶剂完全处理以从基底去除未曝光材料的材料,并且如果需要,处理暴露材料的剩余区域以使其能够从基底转移。 以这种方式,感光材料层的全部厚度可以保留在最终转印材料中。 特别地,可以在成像曝光之前将粘合剂材料施加到层感光材料上,并且将成像曝光和显影的粘合剂涂覆材料去除非曝光区域中的感光材料和粘合剂,仅留下粘合剂涂覆的图像标记。