Thermoplastic vulcanizates having improved adhesion to polar substrates
    1.
    发明授权
    Thermoplastic vulcanizates having improved adhesion to polar substrates 有权
    热塑性硫化胶具有改善的与极性基材的粘附性

    公开(公告)号:US08071220B2

    公开(公告)日:2011-12-06

    申请号:US11491347

    申请日:2006-07-21

    IPC分类号: C08L53/02

    摘要: Thermoplastic vulcanizate compositions having good adhesion to unheated polar substrates include an amount of functionalized polyolefin that comprises greater than 80% of the total polyolefin of the TPV. The functional group may be an anhydride. Exemplary TPVs may further include polyamide, and an elastomer, which may include one or more of conjugated diene rubber, unsaturated styrenic triblock copolymer rubber, hydrogenated styrenic triblock copolymer rubber, ethylene/alpha-olefin rubber, and ethylene/alpha-olefin/non-conjugated diene rubber. The TPVs may have hardness values of less than 85 Shore A and peel forces with respect to unheated polar substrates of greater than 15 pli. Articles comprising polar substrates and TPVs are also taught.

    摘要翻译: 对未加热的极性基材具有良好粘附性的热塑性硫化橡胶组合物包括一定量的官能化聚烯烃,其包含TPV的总聚烯烃的大于80%。 官能团可以是酸酐。 示例性的TPV还可以包括聚酰胺和弹性体,其可以包括共轭二烯橡胶,不饱和苯乙烯三嵌段共聚物橡胶,氢化苯乙烯三嵌段共聚物橡胶,乙烯/α-烯烃橡胶和乙烯/α-烯烃/ 共轭二烯橡胶。 TPV可以具有小于85肖氏A的硬度值和相对于大于15pli的未加热极性底物的剥离力。 还教导了包含极性底物和TPV的制品。

    Soft thermoplastic elastomers
    2.
    发明授权
    Soft thermoplastic elastomers 有权
    软质热塑性弹性体

    公开(公告)号:US07276559B2

    公开(公告)日:2007-10-02

    申请号:US11012753

    申请日:2004-12-15

    IPC分类号: C08L23/00 C08L23/04 C08L9/00

    摘要: This invention relates to a soft thermoplastic vulcanizate composition comprising: a) from about 2-10 wt %, based upon total polymer content weight a)+b)+c), of a thermoplastic polyethylene or polypropylene homopolymer, or ethylene-propylene copolymer, or copolymer that includes ethylene or propylene together with one or more C4 to C20 α-olefins, said thermoplastic having at least 25% crystallinity by DSC; b) from about 15 to about 36 wt. %, based upon total polymer content weight a)+b)+c), of an ethylene-α-olefin random or block copolymer thermoplastic having less than 5% crystallinity by DSC; c) from about 60 to about 80 wt. %, based upon total polymer content weight a)+b)+c), of a cross-linked elastomer; and d) from about 50 to about 65 wt %, based upon total composition weight a)+b)+c)+d), of a process oil; wherein said thermoplastic vulcanizate composition has a Shore A Hardness of less than 35. The invention compositions may also comprise from about 0 to about 40 wt. %, based upon the total composition weight, of conventional additives.

    摘要翻译: 软质热塑性硫化橡胶组合物本发明涉及一种软质热塑性硫化橡胶组合物,其包含:a)约2-10重量%,基于热塑性聚乙烯或聚丙烯均聚物或乙烯 - 丙烯共聚物的总聚合物含量重量a)+ b)+ c) 或共聚物,其包括乙烯或丙烯与一种或多种C 4至C 20α-烯烃,所述热塑性材料通过DSC具有至少25%的结晶度; b)约15至约36重量% %,基于通过DSC具有小于5%结晶度的乙烯-α-烯烃无规或嵌段共聚物热塑性聚合物的总重量a)+ b)+ c)的总重量% c)约60至约80wt。 %,基于交联弹性体的总聚合物含量重量a)+ b)+ c); 和d)基于加工油的总组合物重量a)+ b)+ c)+ d)的约50至约65重量% 其中所述热塑性硫化橡胶组合物的肖氏A硬度小于35.本发明组合物还可以包含约0至约40wt。 %,基于总组合物重量,常规添加剂。

    Thermoplastic vulcanizates having improved adhesion to polar substrates
    4.
    发明申请
    Thermoplastic vulcanizates having improved adhesion to polar substrates 有权
    热塑性硫化胶具有改善的与极性基材的粘附性

    公开(公告)号:US20080021159A1

    公开(公告)日:2008-01-24

    申请号:US11491347

    申请日:2006-07-21

    IPC分类号: C08L53/00

    摘要: Thermoplastic vulcanizate compositions having good adhesion to unheated polar substrates include an amount of functionalized polyolefin that comprises greater than 80% of the total polyolefin of the TPV. The functional group may be an anhydride. Exemplary TPVs may further include polyamide, and an elastomer, which may include one or more of conjugated diene rubber, unsaturated styrenic triblock copolymer rubber, hydrogenated styrenic triblock copolymer rubber, ethylene/alpha-olefin rubber, and ethylene/alpha-olefin/non-conjugated diene rubber. The TPVs may have hardness values of less than 85 Shore A and peel forces with respect to unheated polar substrates of greater than 15 pli. Articles comprising polar substrates and TPVs are also taught.

    摘要翻译: 对未加热的极性基材具有良好粘附性的热塑性硫化橡胶组合物包括一定量的官能化聚烯烃,其包含TPV的总聚烯烃的大于80%。 官能团可以是酸酐。 示例性的TPV还可以包括聚酰胺和弹性体,其可以包括共轭二烯橡胶,不饱和苯乙烯三嵌段共聚物橡胶,氢化苯乙烯三嵌段共聚物橡胶,乙烯/α-烯烃橡胶和乙烯/α-烯烃/非共聚物橡胶中的一种或多种, 共轭二烯橡胶。 TPV可以具有小于85肖氏A的硬度值和相对于大于15pli的未加热极性底物的剥离力。 还教导了包含极性底物和TPV的制品。

    Thermoplastic vulcanizates with low compression set
    5.
    发明授权
    Thermoplastic vulcanizates with low compression set 有权
    热塑性硫化胶具有低压缩永久变形

    公开(公告)号:US07851556B2

    公开(公告)日:2010-12-14

    申请号:US11653016

    申请日:2007-01-12

    摘要: A thermoplastic vulcanizate comprising a dynamically-cured rubber, where the rubber is selected from the group consisting of ethylene-propylene-non-conjugated diene rubber, propylene-based rubbery copolymers with units derived from non-conjugated diene monomers, and butyl rubber, where dynamic vulcanization is effected with a phenolic resin or a silicon-containing curative, and where the rubber is dynamically cured to an extent where greater than 94% by weight of the rubber is insoluble in cyclohexane at 23° C., and from about 25 to about 250 parts by weight of a thermoplastic polymer phase per 100 parts by weight rubber, where from about 75% to about 100% by weight of said thermoplastic polymer phase includes a butene-1-based polymer.

    摘要翻译: 一种热塑性硫化橡胶,其包含动态固化的橡胶,其中橡胶选自乙烯 - 丙烯 - 非共轭二烯橡胶,丙烯基橡胶共聚物与衍生自非共轭二烯单体的单元和丁基橡胶,其中 使用酚醛树脂或含硅固化剂进行动态硫化,并且其中橡胶被动态固化至大于94重量%的橡胶在23℃不溶于环己烷的程度和约25至 每100重量份橡胶约250重量份的热塑性聚合物相,其中约75重量%至约100重量%的所述热塑性聚合物相包括丁烯-1-基聚合物。

    Method for improving compression set in thermoplastic vulcanizates
    6.
    发明授权
    Method for improving compression set in thermoplastic vulcanizates 失效
    改进热塑性硫化胶中压缩永久变形的方法

    公开(公告)号:US07504458B2

    公开(公告)日:2009-03-17

    申请号:US11402695

    申请日:2006-04-12

    IPC分类号: C08L53/00 C08L21/00

    摘要: The compression set [(70° C., 22 hr), (100° C., 22 hr)] of TPVs can be improved by substituting, within their respective constituent plastic phase, all or portions of polyolefins having a high melting point, with polyolefins having lower melting point (Tm from between 115° C. to 140° C.). Exemplary polyolefins having melting points in this range include homopolyethylene, syndiotactic polypropylene, and isotactic poly(1-butene). Composition and methods of formulating thermoplastic vulcanizates to achieve an improved high temperature (between 70° C. 100° C.) compression set by selecting between suitable polyolefins on the basis of melting point temperature and substituting from 30% to 100% of high melting point polyolefins with low melting point polyolefins in the plastic phase are taught.

    摘要翻译: TPV的压缩变形[(70℃,22小时),(100℃,22小时)]可以通过在其相应的构成塑料相中代替全部或部分具有高熔点的聚烯烃, 具有较低熔点的聚烯烃(Tm在115℃至140℃之间)。 在该范围内具有熔点的示例性聚烯烃包括均聚乙烯,间同立构聚丙烯和全同立构聚(1-丁烯)。 配制热塑性硫化橡胶的组成和方法,通过在熔点温度下选择合适的聚烯烃,并以30〜100%的高熔点进行取代,达到改善的高温(70℃〜100℃) 教导了在塑料相中具有低熔点聚烯烃的聚烯烃。

    Thermoplastic vulcanizates with low compression set
    7.
    发明申请
    Thermoplastic vulcanizates with low compression set 有权
    热塑性硫化胶具有低压缩永久变形

    公开(公告)号:US20080171822A1

    公开(公告)日:2008-07-17

    申请号:US11653016

    申请日:2007-01-12

    IPC分类号: C08K5/01 C08L23/00

    摘要: A thermoplastic vulcanizate comprising a dynamically-cured rubber, where the rubber is selected from the group consisting of ethylene-propylene-non-conjugated diene rubber, propylene-based rubbery copolymers with units derived from non-conjugated diene monomers, and butyl rubber, where dynamic vulcanization is effected with a phenolic resin or a silicon-containing curative, and where the rubber is dynamically cured to an extent where greater than 94% by weight of the rubber is insoluble in cyclohexane at 23° C., and from about 25 to about 250 parts by weight of a thermoplastic polymer phase per 100 parts by weight rubber, where from about 75% to about 100% by weight of said thermoplastic polymer phase includes a butene-1-based polymer.

    摘要翻译: 一种热塑性硫化橡胶,其包含动态固化的橡胶,其中橡胶选自乙烯 - 丙烯 - 非共轭二烯橡胶,丙烯基橡胶共聚物与衍生自非共轭二烯单体的单元和丁基橡胶,其中 使用酚醛树脂或含硅固化剂进行动态硫化,并且其中橡胶被动态固化至大于94重量%的橡胶在23℃不溶于环己烷的程度和约25至 每100重量份橡胶约250重量份的热塑性聚合物相,其中约75重量%至约100重量%的所述热塑性聚合物相包括丁烯-1-基聚合物。

    Processable polyethylene/EPDM thermoplastic vulcanizates

    公开(公告)号:US06667364B2

    公开(公告)日:2003-12-23

    申请号:US09751886

    申请日:2000-12-29

    IPC分类号: C08K510

    摘要: A blend of an EPDM made with VNB instead of ENB and specified melt viscosity reducers is imbued with a unique ability to form a processable blend with a polyolefin phase in which PE is present in a major amount by weight relative to PP. In the substantially fully cured vulcanizate (TPV) of the blend the ratio of PE to pEPDM is in the range from more than 1:3 up to about 1:0.6. This blend is made processable with less than 200 phr of a processing oil in presently available commercial processing equipment by using an inert melt viscosity reducer which is compatible with the pEPDM and PE phases without being substantially miscible in either. A preferred melt viscosity reducer is chosen from (a) a polyolefin selected from the group consisting of isotactic poly(1-butene), ethylene-co-1-butene, propene-co-1-butene and ethylene-co-propene-co-1-butene; (b) oils and waxes having a solubility parameter in the range from about 19.5 to 21.5; and (c) a block copolymer of a fatty acid and polyethylene oxide having a melting point lower than 150° C.