Stable free radical polymers
    1.
    发明授权
    Stable free radical polymers 失效
    稳定的自由基聚合物

    公开(公告)号:US06967228B2

    公开(公告)日:2005-11-22

    申请号:US10427115

    申请日:2003-05-01

    摘要: A functional polymer having at least one substituent capable of forming a stable free radical is formed by polymerizing a diene monomer, such as butadiene, to form a first polymer block of the functional polymer. The first polymer block has a weight average molecular weight of less than 150,000. A vinyl aromatic monomer, such as styrene, is polymerized to form at least a second polymer block of the functional polymer. The copolymer is contacted with a stable free radical providing compound to form the functional polymer. By adding sufficient vinyl aromatic monomer, a low molecular weight functional rubber polymer can be rendered processable at ambient temperatures, while maintaining a solution viscosity which is suited to subsequent free radical catalyzation of vinyl aromatic monomers.

    摘要翻译: 具有至少一个能够形成稳定自由基的取代基的官能聚合物通过使二烯单体如丁二烯聚合形成功能聚合物的第一聚合物嵌段而形成。 第一聚合物嵌段的重均分子量小于15万。 乙烯基芳族单体如苯乙烯被聚合以形成功能性聚合物的至少第二聚合物嵌段。 使共聚物与稳定的自由基接触,形成官能聚合物。 通过添加足够的乙烯基芳族单体,低分子量官能的橡胶聚合物可以在环境温度下使其可加工,同时保持适合随后的乙烯基芳族单体自由基催化的溶液粘度。

    Asphalt compositions
    2.
    发明授权
    Asphalt compositions 有权
    沥青组合物

    公开(公告)号:US06492439B2

    公开(公告)日:2002-12-10

    申请号:US09750570

    申请日:2000-12-28

    IPC分类号: C08L9500

    摘要: A rubber-modified asphalt composition is provided. The asphalt composition includes asphalt, a rubber including at least high vinyl poly(conjugated diene), and at least one phenolic curing resin. The high vinyl poly(conjugated diene) has a vinyl content of at least 35%. The use of phenolic curing agents results in improvements to the softening point of the present asphalt composition while also improving toughness and tenacity.

    摘要翻译: 提供橡胶改性沥青组合物。 沥青组合物包括沥青,包括至少高乙烯基聚(共轭二烯)的橡胶和至少一种酚类固化树脂。 高乙烯基聚(共轭二烯)的乙烯基含量至少为35%。 使用酚类固化剂导致改善本沥青组合物的软化点,同时还提高韧性和韧性。

    Asphalt composition comprising bismaleimides
    3.
    发明授权
    Asphalt composition comprising bismaleimides 有权
    包含双马来酰亚胺的沥青组合物

    公开(公告)号:US06486236B2

    公开(公告)日:2002-11-26

    申请号:US09750599

    申请日:2000-12-28

    IPC分类号: C08L9500

    摘要: A rubber-modified asphalt composition is provided. The rubber includes at least a polydiene and may further include vinyl-substituted aromatic hydrocarbon monomer contributed units. The rubber is cured by a bismaleimide. The present composition demonstrates improvements in the softening point of the asphalt composition.

    摘要翻译: 提供橡胶改性沥青组合物。 橡胶包括至少一个聚二烯,并且还可以包括乙烯基取代的芳族烃单体贡献单元。 橡胶用双马来酰亚胺固化。 本发明的组合物显示了沥青组合物的软化点的改进。

    Block copolymers interpolymerized with in situ polystyrene and process
for preparation thereof
    4.
    发明授权
    Block copolymers interpolymerized with in situ polystyrene and process for preparation thereof 失效
    用原位聚苯乙烯共聚的嵌段共聚物及其制备方法

    公开(公告)号:US6162874A

    公开(公告)日:2000-12-19

    申请号:US935773

    申请日:1997-09-23

    摘要: A process for interpolymerizing a vinyl aromatic hydrocarbon polymer and a block polymer is disclosed. The process includes the following steps: (a) forming a block polymer precursor of at least one polymeric block containing conjugated diene monomer contributed units in the presence of an anionic initiator and in an inert diluent, the block polymer precursor having living ends; and (b) thereafter adding to the block polymer precursor a charge of a vinyl aromatic hydrocarbon monomer and an additional charge of an anionic initiator to simultaneously form (1) a block polymer having a terminal block formed from the charge of vinyl aromatic hydrocarbon monomer attached to the block polymer precursor and (2) a poly(vinyl aromatic hydrocarbon) polymer interpolymedzed with the block polymer. The practice of this process produces a vinyl aromatic hydrocarbon block terminated block polymer, such as SBS, interpolymerized with a polymer formed from vinyl aromatic hydrocarbon monomer, such as polystyrene. The resultant interpolymer has a high Gardner Impact strength and good processibility.

    摘要翻译: 公开了一种使乙烯基芳族烃聚合物和嵌段聚合物共聚的方法。 该方法包括以下步骤:(a)在阴离子引发剂存在下,在惰性稀释剂中形成含有共轭二烯单体的至少一个聚合物嵌段的嵌段聚合物前体,所述嵌段聚合物前体具有活性末端; 和(b)然后向嵌段聚合物前体中加入乙烯基芳族烃单体和另外的阴离子引发剂的电荷,以同时形成(1)具有由连接的乙烯基芳族烃单体的电荷形成的末端嵌段的嵌段聚合物 嵌段聚合物前体和(2)用嵌段聚合物共混的聚(乙烯基芳族烃)聚合物。 该方法的实践产生与由乙烯基芳族烃单体如聚苯乙烯形成的聚合物共聚的乙烯基芳族烃嵌段封端的聚合物,例如SBS。 所得互聚物具有较高的加德纳冲击强度和良好的加工性能。

    Solution-applied laminate release for TAM bladders
    5.
    发明授权
    Solution-applied laminate release for TAM bladders 失效
    解决方案应用于TAM刀片的层压板释放

    公开(公告)号:US5188904A

    公开(公告)日:1993-02-23

    申请号:US663514

    申请日:1991-03-04

    申请人: Daniel F. Graves

    发明人: Daniel F. Graves

    IPC分类号: B29C33/64

    CPC分类号: B29C33/64 Y10T428/31663

    摘要: Disclosed is a solution-applied laminate release system useful in improving release properties toward uncured rubber to rubber bladders and, particularly, tire assembly machine (TAM) bladders having at least a portion of their outer surface covered with the releasing system comprised of (a) a primer system comprising (i) at least one layer of a halogenating treating agent and (ii) at least one layer of a silane coupling agent overlaid by (b) a layer of at least one layer of silicone release coating bonded to the silane coupling agent layer.

    Thermoformable blends of multiblock polymer compositions with polystyrene
    6.
    发明授权
    Thermoformable blends of multiblock polymer compositions with polystyrene 失效
    多嵌段聚合物组合物与聚苯乙烯的可热成型共混物

    公开(公告)号:US5089558A

    公开(公告)日:1992-02-18

    申请号:US646485

    申请日:1991-01-28

    IPC分类号: C08L25/02 C08L53/02

    摘要: A polymer composition for use in making thermoformed products which comprises a blend of: (1) 20 to 75% by weight of a polyvinylaromatic resin, (2) 20 to 75% by weight of S.sub.1 -(B/S.sub.2).sub.n type block copolymer wherein S.sub.1 and S.sub.2 are vinylaromatic block polymers, B is a diene block polymer, (B/S.sub.2) represents a tapered or non-tapered block copolymer and the S.sub.1 block is 5 to 20% by weight of the block copolymer, (S.sub.1 +S.sub.2) is 65 to 95% by weight of the block copolymer, and the total block styrene content of the block copolymer ranges between 35 and 80% by weight, and (3) 0.5 to 10% by weight a diene-vinylaromatic block copolymer (B'-S') containing 10-60% by weight of the vinylaromatic polymer block.

    摘要翻译: 一种用于制造热成型产品的聚合物组合物,其包含以下混合物:(1)20至75重量%的聚乙烯基芳族树脂,(2)20至75重量%的S1-(B / S2)n型嵌段共聚物 其中S1和S2是乙烯基芳族嵌段聚合物,B是二烯嵌段聚合物,(B / S2)表示锥形或非渐变嵌段共聚物,S1嵌段是嵌段共聚物的5〜20重量%(S1 + S2 )为嵌段共聚物的65〜95重量%,嵌段共聚物的总嵌段苯乙烯含量为35〜80重量%,(3)0.5〜10重量%的二烯 - 乙烯基芳族嵌段共聚物(B '-S'),其含有10-60重量%的乙烯基芳族聚合物嵌段。

    Rubber compositions containing furazan oxides and transition metal salts
    7.
    发明授权
    Rubber compositions containing furazan oxides and transition metal salts 失效
    含有呋咱氧化物和过渡金属盐的橡胶组合物

    公开(公告)号:US4975497A

    公开(公告)日:1990-12-04

    申请号:US273650

    申请日:1988-11-18

    IPC分类号: C08K5/35

    CPC分类号: C08K5/35

    摘要: Modified rubber compositions are described which comprise at least one polymer rubber containing carbon-carbon unsaturation, at least one aromatic furazan oxide, and at least one hydrocarbon-soluble transition metal salt. When a transition metal salt is included in such polymer rubber formulations containing aromatic furazan oxides, the undesirable odors which normally characteristic of such rubber formulations is diminished or eliminated without significantly reducing the other desirable characteristics of the vulcanized rubbers. For example, filled vulcanizates made by vulcanizing mixtures in accordance with the invention exhibit high rebound, and tires which are formulated to include at least a portion of the cured vulcanizates in the tread exhibit reduced rolling resistance. Preferably, the hydrocarbon-soluble transition metal salts are the aliphatic or alicyclic monocarboxylic acid salts or cobalt, iron, nickel or manganese.

    摘要翻译: 描述了包含至少一种含有碳 - 碳不饱和键的聚合物橡胶,至少一种芳族呋咱氧化物和至少一种烃可溶性过渡金属盐的改性橡胶组合物。 当含有芳族呋喃氧化物的聚合物橡胶配方中包含过渡金属盐时,通常这种橡胶配方特征的不希望的气味减少或消除,而不显着降低硫化橡胶的其它所需特性。 例如,根据本发明的通过硫化混合物制成的填充硫化橡胶表现出高回弹性,并且被配制成包括至少一部分硫化橡胶在胎面中的轮胎表现出降低的滚动阻力。 优选地,烃可溶的过渡金属盐是脂族或脂环族单羧酸盐或钴,铁,镍或锰。

    Modified rubber compositions containing aromatic six-membered
heterocyclic nitrogen-containing groups
    8.
    发明授权
    Modified rubber compositions containing aromatic six-membered heterocyclic nitrogen-containing groups 失效
    含有芳香族六元杂环含氮基团的改性橡胶组合物

    公开(公告)号:US4927887A

    公开(公告)日:1990-05-22

    申请号:US234105

    申请日:1988-08-19

    IPC分类号: B60C1/00 C08C19/30 C08C19/42

    摘要: Modified rubber compositions are described which when cured exhibit high rebound and reduced hysteresis. The uncured rubber compositions are prepared by reacting (a) at least one polymer rubber containing an alkali metal and carbon-carbon unsaturation with (b) at least one aromatic six-membered heterocyclic nitrogen-containing compound substituted with a group capable of reacting with the alkali metal of the polymer rubber. Filled vulcanizates made by vulcanizing a composition comprising at least one of the above-described uncured modified rubber compositions and one or more reinforcing fillers also are described. When tire treads are prepared utilizing the filled vulcanizates of the present invention, the tires exhibit improved properties such as reduced running temperature and rolling resistance.

    摘要翻译: 描述了改进的橡胶组合物,其在固化时表现出高的回弹和减小的滞后。 未固化的橡胶组合物通过使(a)至少一种含有碱金属和碳 - 碳不饱和的聚合物橡胶与(b)至少一种被能与其反应的基团取代的芳族六元杂环含氮化合物 聚合物橡胶的碱金属。 还描述了通过硫化包含至少一种上述未固化的改性橡胶组合物和一种或多种增强填料的组合物制成的填充硫化橡胶。 当利用本发明的填充硫化橡胶制备轮胎胎面时,轮胎表现出改善的性能,例如减少的运行温度和滚动阻力。

    Rubber compositions modified with heterocyclic di-N-oxides
    9.
    发明授权
    Rubber compositions modified with heterocyclic di-N-oxides 失效
    用杂环二-N-氧化物改性的橡胶组合物

    公开(公告)号:US4822845A

    公开(公告)日:1989-04-18

    申请号:US37486

    申请日:1987-04-13

    摘要: It now has been found that uncured rubber composition comprising rubbers having an unsaturated carbon chain and at least one carbon black can be improved by including therein, a minor property-improving amount of at least one aromatic heterocyclic di-N-oxide compound of the partial formula ##STR1## wherein the depicted carbon atoms are part of an optionally substituted aromatic ring, and R.sup.1 and R.sup.2 are each independently hydrogen, hydrocarbyl, halohydrocarbyl, hydrocarbyloxy, hydrocarbyl sulfonyl, hydrocarbyl thio, hydrocarbylsulfoxidyl, halogen, amino,--CN--OH--CHO--CH(O hydrocarbyl)2--C(O)R.sup.3--C(O)OR.sup.3--C(N--OH)R.sup.3--C(O)NR.sup.3 R.sup.6--CH.dbd.N--NH--C(O)OR.sup.3--CH.sub.2 OC(O)CH.sub.3--R.sup.4 YR.sup.3--C(O)NHR.sup.4 OH--C(NH)NR.sup.7 R.sup.8,or--C(O)NHN(R.sup.3).sub.2wherein each R.sup.3 is independently hydrogen or a hydrocarbyl group, R.sup.4 is a divalent hydrocarbyl group, R.sup.6 is hydrogen, hydrocarbyl, --R.sup.4 OR.sup.3, or --R.sup.4 COOR.sup.3 ; R.sup.7 is hydrogen or a hydrocarbyl group; R.sup.8 is hydrogen or a hydrocarbyl, an amino, or a hydroxyl group; R.sup.7 and R.sup.8 may be hydrocarbyl groups joined together to form a ring including the nitrogen atom, and Y is O, divalent S, --NH--, --S(O)-- or --S(O).sub.2 or R.sup.1 and R.sup.2 may be joined together to form further ring systems which may be saturated or unsaturated, and further substituted or unsubstituted. When vulcanizates are prepared from such uncured rubber compositions, particularly when the carbon black used therein has an average surface area of at least about 20 m.sup.2 /g, the vulcanizates exhibit reduced low strain hysteresis and exhibit no significant undesirable odor.In another aspect of the invention, a filled vulcanizate made by vulcanizing uncured compositions of the type described above and containing a filler, particularly carbon black, is improved in filler interaction, hysteresis, modulus, compression set and resiliency. Rubber articles and portions thereof made from such vulcanizates such as tires, hoses, belts, springs, treads, sidewalls, and the like can be made utilizing the improved filled vulcanizates of the invention.

    Rubber compositions modified with benzimidazo-linones
    10.
    发明授权
    Rubber compositions modified with benzimidazo-linones 失效
    用苯并咪唑啉酮改性的橡胶组合物

    公开(公告)号:US4761446A

    公开(公告)日:1988-08-02

    申请号:US37378

    申请日:1987-04-13

    CPC分类号: C08K5/3447

    摘要: It now has been found that the properties of filled rubber compositions comprising rubbers having an unsaturated carbon chain can be improved by including therein, a minor property-improving amount of at least one 1,3-dihydroxy-benzimidazolinone or derivative compound of the formula ##STR1## wherein R is hydrogen, or a halogen, hydroxyl, lower hydrocarbyl, lower hydrocarbyloxy, lower hydrocarbylthio, lower hydrocarbyl nitrile, carboxyl, cyano, nitro, amino, amide or --C(O)--R'" where R'" is an aryl or a lower hydrocarbyl group; each R' independently is H, lower alkyl, acyl, CONR"2 or CONHR" where R" is alkyl or aryl. When vulcanizates are prepared from such uncured rubber compositions, the vulcanizates exhibit reduced low strain hysteresis and a high electrical resistivity.In another aspect of the invention, a filled vulcanizate made by vulcanizing uncured compositions of the type described above and containing a filler, particularly carbon black, is improved in filler interaction, hysteresis, modulus, compression set and resiliency. Rubber articles and portions thereof such as tires, hoses, belts, springs, tread, sidewalls and the like can be made utilizing the improved filled vulcanizates of the invention.