Ring-opening polymer hydrogenation products
    82.
    发明授权
    Ring-opening polymer hydrogenation products 失效
    开环聚合物加氢产物

    公开(公告)号:US5905129A

    公开(公告)日:1999-05-18

    申请号:US809298

    申请日:1997-03-27

    摘要: A thermoplastic norbornene resin having a number-average molecular weight (Mn) of 12,000 or more in terms of polyisoprene value measured by gel permeation chromatography and excellent in low birefringence property and resistance to deterioration with greases and oils is obtained by ring-opening polymerizing a polycyclic norbornene monomer containing at least 70% by weight of a norbornene monomer represented by the following formula I (for example, 1,4-methano-1,4,4a,9a-tetrahydrofluorene): ##STR1## (wherein the lower 6-membered ring structure may have a double bond) and hydrogenating the polymer so that the hydrogenation rate of double bond in the main chain is at least 98% and the hydrogenation rate of the 6-membered ring structure is at least 90%.

    摘要翻译: PCT No.PCT / JP95 / 01992 Sec。 371日期1997年3月27日 102(e)1997年3月27日PCT PCT 1995年9月29日PCT公布。 公开号WO96 / 10596 日期1996年4月11日按照通过凝胶渗透色谱法测定的以聚异戊二烯值计的数均分子量(Mn)为12000以上的热塑性降冰片烯系树脂,具有优异的低双折射性和耐油脂变质性,得到了 开环聚合含有至少70重量%由下式I表示的降冰片烯单体的多环降冰片烯单体(例如,1,4-亚甲基-1,4,4a,9a-四氢芴):(其中下部 6元环结构可以具有双键)和氢化聚合物,使得主链中双键的氢化率至少为98%,并且6元环结构的氢化率至少为90%。

    Process for hydrotreating resins to lighten color
    84.
    发明授权
    Process for hydrotreating resins to lighten color 失效
    加氢处理树脂以减轻颜色的方法

    公开(公告)号:US5817900A

    公开(公告)日:1998-10-06

    申请号:US595115

    申请日:1996-02-01

    CPC分类号: C08F8/04

    摘要: The color of hydrocarbon resins having carbon-carbon double bonds and containing color bodies is lightened by a hydrotreating process consisting essentially of contacting the resin with hydrogen at a hydrogen pressure of 1 to about 20 bar (14.5 to about 290 psi) in the presence of a catalyst that promotes the hydrogenation of the color bodies without substantially changing the softening point or the content of carbon-carbon double bonds in the resin. The preferred catalyst is nickel/zinc oxide on SiO.sub.2.

    摘要翻译: 具有碳 - 碳双键并含有着色体的碳氢化合物树脂的颜色通过加氢处理工艺减轻,所述加氢处理方法主要包括在1至约20巴(14.5至约290psi)的氢气压力下使树脂与氢接触, 促进着色体氢化的催化剂,而基本上不改变树脂中的碳 - 碳双键的软化点或含量。 优选的催化剂是SiO 2上的镍/氧化锌。

    Process for selective hydrogenation of unsaturated polymers
    85.
    发明授权
    Process for selective hydrogenation of unsaturated polymers 失效
    不饱和聚合物的选择性氢化方法

    公开(公告)号:US5814710A

    公开(公告)日:1998-09-29

    申请号:US704656

    申请日:1996-12-04

    IPC分类号: C08C19/02 C08F8/04

    CPC分类号: C08C19/02 C08F8/04

    摘要: The invention relates to the selective hydrogenation of unsaturated polymers, in particular elastomeric polymers which contain aromatic rings and carbon-carbon double rings, for example polymers prepared from styrene and butadiene. In this case, the polymer molecule contains internal and terminal-group double bonds, as well as unsaturated bonds in aromatic rings. According to the invention, only the unsaturated terminal and internal bonds are hydrogenated, whereby the thermal and weather resistance properties of the product are improved. Conventionally, hydrogenation has been performed by means of nickel or cobalt catalysts, but now it has been observed that a metallocene/alumoxane catalyst complex not only catalyzes the polymerization reaction of various olefinic compounds but also catalyzes the selective hydrogenation of unsaturated polymers, preferably styrene-butadiene-styrene block polymers.

    摘要翻译: PCT No.PCT / FI95 / 00120 Sec。 371日期1996年12月4日第 102(e)日期1996年12月4日PCT提交1995年3月3日PCT公布。 公开号WO95 / 25130 日期1995年9月21日本发明涉及不饱和聚合物的选择性氢化,特别是含有芳环和碳 - 碳双环的弹性体聚合物,例如由苯乙烯和丁二烯制备的聚合物。 在这种情况下,聚合物分子含有内部和末端基团双键以及芳环中的不饱和键。 根据本发明,只有不饱和端和内键被氢化,从而提高了产品的耐热和耐候性。 通常,通过镍或钴催化剂进行氢化,但现在观察到茂金属/铝氧烷催化剂络合物不仅催化各种烯烃化合物的聚合反应,而且还催化不饱和聚合物的选择性氢化,优选苯乙烯 - 丁二烯 - 苯乙烯嵌段聚合物。

    Hydrogenation of unsaturated polymers using monocyclopentadienyl group
IV metal catalysts
    86.
    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。

    Hydrogenation of polymers having ketone groups
    89.
    发明授权
    Hydrogenation of polymers having ketone groups 失效
    具有酮基的聚合物的氢化

    公开(公告)号:US5597872A

    公开(公告)日:1997-01-28

    申请号:US529304

    申请日:1990-05-29

    申请人: Carl L. Willis

    发明人: Carl L. Willis

    IPC分类号: C08C19/02 C08F8/04 C08F297/04

    CPC分类号: C08C19/02 C08F8/04 Y10S525/94

    摘要: Polymers containing ketone groups such as hydroesterified 1,3-butadiene polymers, including styrenic block copolymers, are hydrogenated with a cobalt/aluminum catalyst which substantially converts ketone groups to alcohol groups and improves polymer stability.

    摘要翻译: 含有酮基的聚合物如加氢酯化的1,3-丁二烯聚合物(包括苯乙烯嵌段共聚物)用钴/铝催化剂氢化,钴/铝催化剂基本上将酮基转化为醇基并提高聚合物的稳定性。

    Process for hydrogenation in solution of the double bonds of conjugated
dienes, and hydrogenated block copolymer produced
    90.
    发明授权
    Process for hydrogenation in solution of the double bonds of conjugated dienes, and hydrogenated block copolymer produced 失效
    共轭二烯双键溶液中的氢化方法和氢化嵌段共聚物的制备方法

    公开(公告)号:US5583185A

    公开(公告)日:1996-12-10

    申请号:US393272

    申请日:1995-02-23

    IPC分类号: C08C19/02 C08F8/04

    CPC分类号: C08C19/02

    摘要: A process of hydrogenation in solution of polymers of conjugated dienes in the presence of homogeneous catalysts which contain, as an essential component, a titanium compound of the type Cp.sub.2 Ti(PhOR).sub.2, where Cp is a cylopentadienyl group, ph a phenyl group, and OR an alkoxide group containing 1 to 4 carbon atoms; or a titanium compound of the type Cp.sub.2 TiR.sub.2, where R is a Ch.sub.2 PPh.sub.2 group.These catalysts are very active in the selective hydrogenation of the double bonds of the diene units of polymers or copolymers of conjugated dienes having number-averaged molecular weights or between approximately 500 and 1,000,000 and, in particular, of random and block copolymers of styrene and butadiene or isoprene, the latter containing at least one styrene block and one polybutadiene and/or polyisoprene block.

    摘要翻译: 在含有Cp2Ti(PhOR)2型钛化合物作为必需组分的均相催化剂存在下,共轭二烯的聚合物的氢化方法,其中Cp是环戊二烯基,苯基和 或含有1至4个碳原子的烷氧基; 或Cp2TiR2型钛化合物,其中R为Ch2PPh2基团。 这些催化剂在具有数均分子量或约500至1,000,000的特别是苯乙烯和丁二烯的无规和嵌段共聚物的聚合物或共轭二烯的二烯单元的双键的选择性氢化中非常活泼 或异戊二烯,后者含有至少一个苯乙烯嵌段和一个聚丁二烯和/或聚异戊二烯嵌段。