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    • 44. 发明授权
    • Free radical polymerisation process
    • 自由基聚合过程
    • US5602220A
    • 1997-02-11
    • US596230
    • 1996-02-09
    • David M. HaddletonAndrew V. G. Muir
    • David M. HaddletonAndrew V. G. Muir
    • C08F2/38C08F4/26C08F10/00C08F4/04C08F12/08C08F20/10
    • C08F10/00
    • Process for the free-radical polymerisation of olefinically unsaturated monomer(s) using a free-radical initiator, wherein said polymerisation is performed in the presence of a compound for effecting molecular weight control, said molecular weight control compound being selected from Cobalt II chelates of the following formulae I, II and III: ##STR1## wherein: x and y are independently 2 to 5;each R.sup.1, R.sup.2, R.sup.3 and R.sup.4 is independently selected from H, C1-C12 alkyl, optionally substituted aryl, OR.sup.5 where R.sup.5 is C1 to C12 alkyl or optionally substituted aryl, CO.sub.2 R.sup.5, SO.sub.3 H, C(.dbd.O)R.sup.5, CO.sub.2 H, NO.sub.2, OH, NR.sup.5.sub.2, NH.sub.2, NHR.sup.5, SR.sup.5, SH, CN, SO.sub.3 R.sup.5, halogen, 2-furyl and 3-furyl;each X is independently selected from (CR.sup.6.sub.2).sub.n, (CR.sup.6.sub.2 O).sub.n, optionally substituted o-phenylene, and optionally substituted 1,8-naphthylene, where each R.sup.6 is independently selected from H and C1 to C12 alkyl, and n is 1 to 10;and wherein said cobalt chelates of formulae I and II possess a positive charge of 2 and are associated with an anion or anions for balancing the positive charge, while that of formula III is neutral;and also Co III analogues of said cobalt II chelates of formulae I, II and III in which the Co atom is additionally covalently bonded, in a direction at right angles to the macrocyclic chelate ring system, to H, a halide ion or other anion, or a homolytically dissociatable organic group.
    • PCT No.PCT / GB94 / 01693 Sec。 371日期1996年2月9日 102(e)日期1996年2月9日PCT 1994年8月2日PCT公布。 公开号WO95 / 04759 日期1995年2月16日使用自由基引发剂自由基聚合烯属不饱和单体的方法,其中所述聚合在化合物存在下进行以进行分子量控制,所述分子量控制化合物被选择 由下式I,II和III的钴II螯合物构成:x和y分别为2〜5; 每个R 1,R 2,R 3和R 4独立地选自H,C 1 -C 12烷基,任选取代的芳基,OR 5,其中R 5是C 1至C 12烷基或任选取代的芳基,CO 2 R 5,SO 3 H,C(= O)R 5,CO 2 H, ,OH,NR 52,NH 2,NHR 5,SR 5,SH,CN,SO 3 R 5,卤素,2-呋喃基和3-呋喃基; 每个X独立地选自(CR 62)n,(CR 62 O)n,任选取代的邻亚苯基和任选取代的1,8-亚萘基,其中每个R 6独立地选自H和C 1至C 12烷基,并且n是1至 10; 并且其中所述式I和II的钴螯合物具有2的正电荷,并且与用于平衡正电荷的阴离子相关联,而式III的中性为阴离子。 以及所述式I,II和III的所述钴II螯合物的Co III类似物,其中Co a
    • 45. 发明授权
    • Oligomerization process
    • 低聚过程
    • US5324879A
    • 1994-06-28
    • US751631
    • 1991-08-26
    • David G. Hawthorne
    • David G. Hawthorne
    • C08F2/38C08F4/80C08F290/04C07C2/26C07C2/34C08F4/26
    • C08F290/04C08F2/38
    • Oligomers are produced from unsaturated monomers. They contain terminal unsaturation and have a degree of polymerization of from 2 to 200. These oligomers are produced by the free radical polymerization of unsaturated monomers using as an initiator and/or chain transfer agent in the process a transition metal complex comprising a metal cation and at least one chelating agent, said transition metal complex being generally in accordance with formula (I), wherein M is a transition metal ion which can form hexa- or penta-coordinated structures and, when complexed in this manner, has two or more readily interconverted adjacent valence states, R is hydrogen or an organic group or a transition metal complex derived form formula (I) and L is a ligand or controlling the stability and electron transfer properties of the transition metal complex and consists of an electron pair donor (Lewis base) capable of coordination with the metal ion.
    • 低聚物由不饱和单体生产。 它们含有末端不饱和度并且具有2至200的聚合度。这些低聚物通过在该方法中使用作为引发剂和/或链转移剂的不饱和单体的自由基聚合制备,所述过渡金属络合物包含金属阳离子和 至少一种螯合剂,所述过渡金属络合物通常是根据式(I),其中M是可以形成六价或五配位结构的过渡金属离子,当以这种方式复合时,它具有两个或更多个容易 相互转化的相邻价态,R是氢或衍生自式(I)的有机基团或过渡金属络合物,L是配体或控制过渡金属络合物的稳定性和电子转移性质,并由电子对供体(Lewis 碱)能够与金属离子配位。
    • 47. 发明授权
    • Metathesis polymerization catalyst and method of polymerizing cyclic
olefins therewith
    • 复分解聚合催化剂及其与环烯烃聚合的方法
    • US5266665A
    • 1993-11-30
    • US531663
    • 1990-06-01
    • Christopher J. Hardiman
    • Christopher J. Hardiman
    • C08F4/26C08G61/06C08G61/08B32B33/00C08F32/04
    • C08G61/08Y10S526/902Y10T428/2991
    • Cyclic olefin metathesis polymerization catalyst comprising metal compounds wherein said metals consist essentially of a minor amount of a transition metal which Will initiate ring-opening metathesis polymerization of a cyclic olefin and a major amount of at least one second metal which will propagate the polymerization, wherein said catalyst is essentially devoid of pyrophoric metal compounds, e.g. metal alkyls, and preformed metal carbenes. A preferred transition metal is ruthenium. Said second metal can comprise aluminum, copper, hafnium, iron (III), iridium, manganese, molybdenum, nickel, niobium, rhenium, rhodium, tantalum, titanium, tungsten, yttrium, a Lanthanide, zinc or zirconium or a mixture thereof. Using such catalyst cyclic olefin, e.g. norbornene derivatives, can be polymerized, e.g. in an extruder, even in the presence of water.
    • 包含金属化合物的环状烯烃易位聚合催化剂,其中所述金属基本上由少量的过渡金属组成,其将引发环烯烃的开环易位聚合和主要量的至少一种将使聚合反应的第二金属,其中 所述催化剂基本上没有自燃金属化合物,例如 金属烷基和预制金属卡宾。 优选的过渡金属是钌。 所述第二金属可以包括铝,铜,铪,铁(III),铱,锰,钼,镍,铌,铼,铑,钽,钛,钨,钇,镧系元素,锌或锆或它们的混合物。 使用这种催化剂环烯烃,例如 降冰片烯衍生物可以聚合,例如 在挤出机中,甚至在水的存在下。
    • 48. 发明授权
    • Highly effective polarizers
    • 高效偏光片
    • US5051286A
    • 1991-09-24
    • US446944
    • 1989-12-06
    • Karl H. A. O. Starzewski
    • Karl H. A. O. Starzewski
    • G02B5/28C08F2/44C08F4/06C08F4/26C08F4/80C08F38/00C08F38/02C08L29/04C08L49/00G02B1/04G02B1/08G02B5/30
    • C08F38/00G02B1/08Y10S428/91Y10T428/31855
    • Highly effective polarizers are described having a degree of polarization P of at least 95% and a dichroic ratio Q.sub.E =quotient of the extinction in the blocking position to the extinction in the transmitting position, of 10 or more over almost the whole wavelength range of visible light between 400 and 800 nm, the said polarizers comprising polymer products containing polyacetylene, in whose matrix 70 to 90% of all comonomer units are vinyl alcohol units. The polarizers are used in the form of films with a stretch ratio ##EQU1## (1=length after stretching, l.sub.o =length before stretching) of more than 300%. They can be produced by polymerization of acetylene in the solution of a copolymer in which 70 to 90% of all comonomer units are vinyl alcohol units, in the presence of a nickel catalyst.
    • 描述了高效偏振器,其偏振度P至少为95%,二色性比QE =阻挡位置消光在发射位置消光的商数在可见光的几乎整个波长范围内为10以上 400至800nm之间的光,所述偏振器包含含有聚乙炔的聚合物产物,其中70-90%的所有共聚单体单元均为乙烯醇单元。 偏振器以拉伸比(1 =拉伸后的长度,拉伸后的拉伸长度)超过300%的膜的形式使用。 它们可以通过在镍催化剂存在下,在其中70-90%的所有共聚单体单元是乙烯醇单元的共聚物的溶液中聚合乙炔来制备。