公开(公告)号：US5244993A

公开(公告)日：1993-09-14

申请号：US12072

申请日：1993-02-01

申请人： Paul P. Nicholas

发明人： Paul P. Nicholas

IPC分类号： C08F8/00 ,  C08F290/04

CPC分类号： C08F290/04 ,  C08F8/00

摘要： Polymers prepared from vinylidene fluoride having controlled molecular weights and sulfate end groups are described. The sulfate end group can be displaced with acrylic-type acids to produce the corresponding acrylate terminated poly(vinylidene fluoride) macromolecular monomers. These macromolecular monomers can be copolymerized with acrylates that give rubbery homopolymers to form thermoplastic elastomers.

摘要翻译： 描述由具有受控分子量和硫酸端基的偏二氟乙烯制备的聚合物。 硫酸酯基团可以用丙烯酸类酸代替，生成相应的丙烯酸酯封端的聚（偏二氟乙烯）大分子单体。 这些大分子单体可以与丙烯酸酯共聚，得到橡胶状均聚物以形成热塑性弹性体。

公开(公告)号：US4871816A

公开(公告)日：1989-10-03

申请号：US111317

申请日：1987-10-22

申请人： Virgil Percec ,  Paul P. Nicholas ,  Dana Garcia

发明人： Virgil Percec ,  Paul P. Nicholas ,  Dana Garcia

IPC分类号： C08F299/00 ,  C08G65/40 ,  C08G65/48 ,  C08G81/00 ,  C08L71/00

CPC分类号： C08G81/00 ,  C08F299/00 ,  C08G65/40 ,  C08G65/4012 ,  C08G65/48 ,  C08L71/00 ,  C08L2205/05

摘要： Polyarylene polyethers ("PAPE") with vinyl chain ends may be crosslinked to form networks with excellent physical and chemical properties except they tend to be brittle. In particular, a polysulfone ("PSU" made from bisphenol A and dichlorodiphenyl sulfone) with vinylbenzyl chain ends ("di-VB-PSU") is too brittle for many applications where impact resistance is essential. This brittleness is combatted by inserting a thermally stable rubbery poly(dimethylsiloxane) ("PDMS") segment having a number average molecular weight in the range from about 600 to about 5000 connected to di-VB-PSU segments by hydrosilylation in the presence of a Pt catalyst, to form a thermoplastic linear predominantly triblock oligomer with vinylbenzyl chain ends which are thermally crosslinkable. When crosslinked, the network formed has improved impact resistance and toughness, with only a little loss in the upper glass transition temperature if the relative lengths of the PDMS and PAPE are such as to provide the desired degree of phase microincompatibility sufficient to improve toughness. The triblock may be blended with a polymer with which the triblock may be crosslinked upon curing. If the VB-PSU-PDMS-PSU-VB triblock is blended with di-VB-PSU the polyblend may be crosslinked to provide improved toughness.

摘要翻译： 具有乙烯基链末端的聚亚芳基聚醚（“PAPE”）可以交联以形成具有优异物理和化学性质的网络，除非它们易于脆化。 具体地说，具有乙烯基苄基链端（“di-VB-PSU”）的聚砜（“双酚A和二氯二苯基砜制备的”PSU“）对于耐冲击性至关重要的许多应用来说太脆了。 通过在存在下存在下通过氢化硅烷化插入数均分子量在约600至约5000的数均分子量的热稳定的橡胶状聚（二甲基硅氧烷）（“PDMS”）链段，来抵抗这种脆性。 Pt催化剂，以形成热塑性线性主要是三嵌段低聚物，其具有可热交联的乙烯基苄基链端。 当交联时，所形成的网络具有改进的抗冲击性和韧性，如果PDMS和PAPE的相对长度能够提供足以提高韧性的所需程度的相微相容性，则在上玻璃化转变温度中仅有一点损失。 三嵌段可以与固化时三嵌段可以交联的聚合物共混。 如果将VB-PSU-PDMS-PSU-VB三嵌段与二-VP-PSU混合，则可将该共混物交联以提供改善的韧性。

公开(公告)号：US5244978A

公开(公告)日：1993-09-14

申请号：US12078

申请日：1993-02-01

申请人： Paul P. Nicholas

发明人： Paul P. Nicholas

IPC分类号： C08F8/00 ,  C08F290/04

CPC分类号： C08F290/04 ,  C08F8/00

摘要： Polymers prepared from vinylidene fluoride having controlled molecular weights and sulfate end groups are described. The sulfate end group can be displaced with acrylic-type acids to produce the corresponding acrylate terminated poly(vinylidene fluoride) macromolecular monomers. These macromolecular monomers can be copolymerized with acrylates that give rubbery homopolymers to form thermoplastic elastomers.

摘要翻译： 描述由具有受控分子量和硫酸端基的偏二氟乙烯制备的聚合物。 硫酸酯基团可以用丙烯酸类酸代替，生成相应的丙烯酸酯封端的聚（偏二氟乙烯）大分子单体。 这些大分子单体可以与丙烯酸酯共聚，得到橡胶状均聚物以形成热塑性弹性体。

公开(公告)号：US4806617A

公开(公告)日：1989-02-21

申请号：US25544

申请日：1987-03-13

申请人： Virgil Percec ,  Paul P. Nicholas

发明人： Virgil Percec ,  Paul P. Nicholas

IPC分类号： C07C45/71 ,  C08G61/10 ,  C08G61/12 ,  C08G77/52 ,  C08G65/00

CPC分类号： C08G77/52 ,  C07C45/71 ,  C08G61/128

摘要： When two 4-naphthoxyphenyl moieties are connected through a polar linking group, Y, it does not interfere with an oxidation process which results in dehydrogenative polymerization to yield polyarylene polyether (PAPE) polymers having a weight average mol wt greater than 10,000. Homo- and copolymers having a repeating unit in which a 4,4'-di(1-naphthoxyphenyl) moiety is connected through its phenyl rings to a bivalent polar residue are described. A specific monomer is selected from the group consisting of 4,4'-di(1-naphthoxy)diphenyl sulfone (DNDPS, Y=SO.sub.2) and, 4,4'-di(1-naphthoxy)benzophenone (DNBP, Y=CO). Because the process provides thermoplastic PAPE polymers having a Tg in the range from about 250.degree. C. to about 350.degree. C. with excellent physical properties, the polymers are suitable for use in the fabrication of composites for aerospace vehicles subjected to elevated temperatures.

公开(公告)号：US4375569A

公开(公告)日：1983-03-01

申请号：US950119

申请日：1978-10-10

申请人： William J. Kroenke ,  Paul P. Nicholas

发明人： William J. Kroenke ,  Paul P. Nicholas

IPC分类号： B01J23/745 ,  B01J23/76 ,  B01J23/86 ,  C07C17/154

CPC分类号： B01J23/76 ,  B01J23/745 ,  B01J23/86 ,  C07C17/154

摘要： An alkane is reacted with oxygen and available chlorine in the presence of a solid solution catalyst containing iron cations to yield unsaturated hydrocarbons and chlorinated saturated and unsaturated hydrocarbons. In a preferred embodiment of the process, ethane is reacted with oxygen and available chlorine in the presence of a solid solution catalyst containing iron cations to yield vinyl chloride, ethylene, and other valuable by-products. The conversion of ethane to products approaches 100 percent, vinyl chloride is prepared in up to 40 mole percent yield, and the combined yield of vinyl chloride, ethylene dichloride, ethyl chloride, and ethylene is up to 90 mole percent.

摘要翻译： 在含有铁阳离子的固溶体催化剂的存在下，使烷烃与氧气和有效氯反应，得到不饱和烃和氯化饱和和不饱和烃。 在该方法的优选实施方案中，乙烷在含有铁阳离子的固溶体催化剂存在下与氧气和有效氯反应，产生氯乙烯，乙烯和其它有价值的副产物。 乙烷转化成产物接近100％，氯乙烯的制备高达40摩尔％，氯乙烯，二氯乙烷，乙基氯和乙烯的合并产率高达90％。

公开(公告)号：US4161464A

公开(公告)日：1979-07-17

申请号：US889999

申请日：1978-03-24

申请人： Paul P. Nicholas

发明人： Paul P. Nicholas

IPC分类号： C08J11/28 ,  B29H19/00 ,  C08C2/06

CPC分类号： C08J11/28 ,  C08J2321/00 ,  Y02W30/706

摘要： A devulcanized rubber composition is disclosed which is obtained by low temperature phase transfer catalyzed devulcanization of commercial scrap rubber, such as a vulcanized polyisoprene rubber, butadiene-styrene rubber, cis-polybutadiene rubber used for vehicle tires. The devulcanized rubber of this invention is distinguishable from conventional reclaim rubber in that devulcanized rubber is substantially free of polysulfide crosslinks which are selectively broken during the process of this invention with negligible main chain scission.A process for devulcanization of scrap rubber is disclosed comprising (a) comminuting the scrap to obtain vulcanizate particles in the size range from about 325 U.S. Standard mesh (44 microns) to about 6 mesh (3.36 mm), (b) swelling the vulcanizate particles with an organic solvent having dissolved therein a predetermined concentration of an onium salt, and (c) contacting the vulcanizate particles, at a temperature below about 150.degree. C., with an aqueous solution containing OH.sup.- ions to selectively disrupt enough polysulfide crosslinks to produce a devulcanized, recyclable rubber.

摘要翻译： 公开了一种脱硫橡胶组合物，其通过商业废橡胶的低温相转移催化脱硫获得，例如用于车辆轮胎的硫化聚异戊二烯橡胶，丁二烯 - 苯乙烯橡胶，顺式聚丁二烯橡胶。 本发明的脱硫橡胶与常规回收橡胶是可区分的，因为脱硫橡胶基本上不含多硫化物交联，其在本发明的方法中具有可忽略的主链断裂的选择性断裂。

公开(公告)号：US5276222A

公开(公告)日：1994-01-04

申请号：US713917

申请日：1991-06-12

申请人： Paul P. Nicholas

发明人： Paul P. Nicholas

IPC分类号： C07C21/18 ,  C07C17/20 ,  C07C17/25 ,  C07C17/275 ,  C07D303/08 ,  C08G65/22

CPC分类号： C08G65/226 ,  C07C17/206 ,  C07C17/25 ,  C07C17/275 ,  C07D303/08

摘要： The partially fluorinated alkene 4,4,4-trifluoro-2-methyl-1-butene is produced by the selective dehydrochlorination of 3-chloro-1,1,1-trifluoro-3-methylbutane in the presence of a suitable base at elevated temperatures. The alkene is converted to 1,2-epoxy-4,4,4-trifluoro-2-methylbutane which is polymerizable in the presence of an aluminum coordination catalyst. A copolymer can be made with epichlorohydrin.

摘要翻译： 部分氟化的烯4,4,4 - 三氟-2-甲基-1-丁烯是通过在合适的碱的存在下在升高的条件下选择性脱氯化氢化3-氯-1,1,1-三氟-3-甲基丁烷来制备的 温度。 将烯烃转化为在铝配位催化剂存在下可聚合的1,2-环氧-4,4,4-三氟-2-甲基丁烷。 共聚物可以用表氯醇制成。

公开(公告)号：US5194508A

公开(公告)日：1993-03-16

申请号：US864753

申请日：1992-04-07

申请人： Paul P. Nicholas

发明人： Paul P. Nicholas

IPC分类号： C08F14/22 ,  C08F8/00 ,  C08F290/00 ,  C08F290/04 ,  C08F299/00 ,  C08L57/00

CPC分类号： C08F290/04 ,  C08F8/00

摘要： Poylmers prepared from vinylidene fluoride having controlled molecular weights and sulfate end groups are described. The sulfate end group can be displaced with acrylic-type acids to produce the corresponding acrylate terminated poly(vinylidene fluoride) macromolecular monomers. These macromers can be copolymerized with acrylates that give rubbery homopolymers to form thermoplastic elastomers.

摘要翻译： 描述由具有受控分子量和硫酸根端基的偏二氟乙烯制备的溴化钠。 硫酸酯基团可以用丙烯酸类酸代替，生成相应的丙烯酸酯封端的聚（偏二氟乙烯）大分子单体。 这些大分子单体可与丙烯酸酯共聚，得到橡胶状均聚物形成热塑性弹性体。

公开(公告)号：US4868247A

公开(公告)日：1989-09-19

申请号：US148836

申请日：1988-01-27

申请人： Marvin H. Lehr ,  Paul P. Nicholas

发明人： Marvin H. Lehr ,  Paul P. Nicholas

IPC分类号： C08L27/24

CPC分类号： C08L27/24 ,  Y10S525/931

摘要： The melt viscosity of chlorinated polyvinyl chloride is reduced by blending it with small amounts of low molecular weight polystyrene type polymers. Such blends also exhibit good mechanical compatibility.

摘要翻译： 通过将其与少量低分子量聚苯乙烯类聚合物共混来降低氯化聚氯乙烯的熔体粘度。 这种混合物也表现出良好的机械相容性。

公开(公告)号：US4467127A

公开(公告)日：1984-08-21

申请号：US457851

申请日：1983-01-14

申请人： William J. Kroenke ,  Paul P. Nicholas

发明人： William J. Kroenke ,  Paul P. Nicholas

IPC分类号： B01J23/745 ,  B01J23/76 ,  B01J23/86 ,  C07C17/154

CPC分类号： B01J35/002 ,  B01J23/745 ,  B01J23/76 ,  B01J23/86 ,  C07C17/154 ,  B01J21/04

摘要： An alkane is reacted with oxygen and available chlorine in the presence of a solid solution catalyst containing iron cations to yield unsaturated hydrocarbons and chlorinated saturated and unsaturated hydrocarbons. In a preferred embodiment of the process, ethane is reacted with oxygen and available chlorine in the presence of a solid solution catalyst containing iron cations to yield vinyl chloride, ethylene, and other valuable by-products. The conversion of ethane to products approaches 100 percent, vinyl chloride is prepared in up to 40 mole percent yield, and the combined yield of vinyl chloride, ethylene dichloride, ethyl chloride, and ethylene is up to 90 mole percent.

摘要翻译： 在含有铁阳离子的固溶体催化剂的存在下，使烷烃与氧气和有效氯反应，得到不饱和烃和氯化饱和和不饱和烃。 在该方法的优选实施方案中，乙烷在含有铁阳离子的固溶体催化剂存在下与氧气和有效氯反应，产生氯乙烯，乙烯和其它有价值的副产物。 乙烷转化成产物接近100％，氯乙烯的制备高达40摩尔％，氯乙烯，二氯乙烷，乙基氯和乙烯的合并产率高达90％。