Pressure sensitive adhesives comprising thermoplastic polyurethanes
    1.
    发明授权
    Pressure sensitive adhesives comprising thermoplastic polyurethanes 失效
    包含热塑性聚氨酯的压敏粘合剂

    公开(公告)号:US5929167A

    公开(公告)日:1999-07-27

    申请号:US2903

    申请日:1998-01-05

    摘要: The present invention relates to a pressure sensitive adhesive composition comprising a thermoplastic polyurethane and a tackifying resin, which thermoplastic polyurethane is derived from an aromatic diisocyanate and/or a cycloaliphatic diisocyanate, a chain extender, and a polymeric diol and/or a hydrogenated polydiene diol and a hydrogenated polydiene mono-ol, and wherein the number average functionality of the diol and mono-ol ranges from 1.2 to 1.8. Further, the invention relates to a thermoplastic polyurethane for use in pressure sensitive adhesives and to articles containing the pressure sensitive adhesives.

    摘要翻译: 本发明涉及包含热塑性聚氨酯和增粘树脂的压敏粘合剂组合物,该热塑性聚氨酯衍生自芳族二异氰酸酯和/或脂环族二异氰酸酯,增链剂和聚合二醇和/或氢化聚二烯二醇 和氢化聚二烯单醇,并且其中二醇和单醇的数均官能度为1.2至1.8。 此外,本发明涉及用于压敏粘合剂的热塑性聚氨酯和含有压敏粘合剂的制品。

    High Melt Strength Thermoplastic Elastomer Composition
    2.
    发明申请
    High Melt Strength Thermoplastic Elastomer Composition 审中-公开
    高熔体热塑性弹性体组合物

    公开(公告)号:US20080132645A1

    公开(公告)日:2008-06-05

    申请号:US11793739

    申请日:2005-12-20

    摘要: A high melt strength thermoplastic elastomer composition, comprising: (i) at least one linear crystalline polyolefin, having a melting temperature (Tm) of at least 100° C. and a Polydispersity Index (PI) of more than 20, determined by means of an isothermal dynamic frequency sweep at 190° C. and calculated by means of the equation PI=100,000/Gc, wherein Gc is expressed in Pascal and represents the crossover modulus (Gc=G′=G″) and (ii) at least one thermoplastic elastomer (TPE) or a blend behaving as TPE, wherein the TPE or the blend are compatible with the polyolefin (i), and have a compression set below 50% at ambient temperature after 24 h compression (ASTM D395-03, “Compression Set under constant deflection in air”), wherein the amount of component (i) is in the range of 0.1 to 15 wt % calculated on the whole of (i) and (ii); a premix (iii) useful as a homogeneous melt strain hardening additive for the preparation of this composition; a process for the preparation of shaped polymeric articles thereof, and shaped polymeric articles so prepared.

    摘要翻译: 一种高熔体强度热塑性弹性体组合物,其包含:(i)至少一种直链结晶聚烯烃,其熔融温度(Tm)为至少100℃,多分散指数(PI)大于20,通过 在190℃下进行等温动态频率扫描,并通过PI = 100,000 / Gc等式计算,其中Gc表示为Pascal,表示交越模量(Gc = G'= G“),(ii)至少 一种热塑性弹性体(TPE)或一种表现为TPE的共混物,其中TPE或共混物与聚烯烃(i)相容,并且在24小时压缩后的环境温度下压缩永久变形低于50%(ASTM D395-03, 在空气中恒定挠曲下的压缩组合“),其中组分(i)的量在整个(i)和(ii)中计算为0.1至15重量%的范围内; 可用作制备该组合物的均匀熔融应变硬化添加剂的预混物(iii) 制备其成型聚合物制品的方法和如此制备的成型聚合物制品。

    High Temperature Block Copolymers and Process for Making Same
    3.
    发明申请
    High Temperature Block Copolymers and Process for Making Same 有权
    高温嵌段共聚物及其制备方法

    公开(公告)号:US20080039584A1

    公开(公告)日:2008-02-14

    申请号:US11688448

    申请日:2007-03-20

    IPC分类号: C08L53/00

    摘要: A novel process for preparation of block copolymers containing, for example, alpha-methyl-styrene/styrene glassy blocks is claimed, where the glassy blocks contain 25-50 mol % alpha-methyl-styrene and have Tg values in the range of 120 to 140° C. The copolymerization process, which is conducted at 35 to 60° C. and relatively high solids contents and with continuous addition of styrene, results in very high conversions of the alpha-methyl-styrene. Selectively hydrogenated block copolymers having high glassy block Tg values are also disclosed and claimed as well as high service temperature elastomeric compositions comprising the block copolymer and an olefin polymer of copolymer.

    摘要翻译: 要求保护含有例如α-甲基 - 苯乙烯/苯乙烯玻璃质嵌段的嵌段共聚物的新方法,其中玻璃状嵌段含有25-50mol%的α-甲基 - 苯乙烯,Tg值在120〜 140℃。在35至60℃和相对较高的固体含量和连续加入苯乙烯时进行的共聚方法导致非常高的α-甲基 - 苯乙烯转化率。 还公开并要求保护具有高玻璃态Tg值的选择性氢化嵌段共聚物以及包含嵌段共聚物和共聚物烯烃聚合物的高使用温度弹性体组合物。

    Foamable polymeric compositions and articles containing foamed compositions
    4.
    发明授权
    Foamable polymeric compositions and articles containing foamed compositions 有权
    可发泡聚合物组合物和含发泡组合物的制品

    公开(公告)号:US08008398B2

    公开(公告)日:2011-08-30

    申请号:US10589705

    申请日:2004-09-03

    摘要: Foamable compositions which are usable for the manufacture of foamed, flexible, heat resistant, thermoplastic elastomeric articles, and which comprises at least: (a) 100 pbw of one or more selectively hydrogenated block copolymers, (b) 5 to 50 pbw per 100 pbw of component (a) of one or more different selectively hydrogenated block copolymers, (c) 42 to 80 pbw per 100 pbw of component (a) of a linear crystalline polymer comprising propylene as the major component, (d) from 100 to 250 pbw per 100 pbw of component (a) of a softener compatible with blocks B and B′, and (e) from 0.01 to 3 wt. %, relative to the weight of the primary components (a) to (e) of a solid chemical nucleating agent of the endothermic group in combination with a blowing agent.

    摘要翻译: 可用于制造泡沫,柔性,耐热的热塑性弹性制品的可发泡组合物,其至少包括:(a)100pbw的一种或多种选择性氢化的嵌段共聚物,(b)每100pbw 5至50pbw 一种或多种不同的选择性氢化嵌段共聚物的组分(a),(c)每100pbw的包含丙烯作为主要组分的线性结晶聚合物组分(a)42至80pbw,(d)100至250pbw 每100pbw的组分(a)与块B和B'相容的软化剂,和(e)0.01至3wt。 相对于吸热组的固体化学成核剂与发泡剂的主要组分(a)至(e)的重量相比较。

    High temperature block copolymers and process for making same
    5.
    发明授权
    High temperature block copolymers and process for making same 有权
    高温嵌段共聚物及其制备方法

    公开(公告)号:US07449518B2

    公开(公告)日:2008-11-11

    申请号:US11688448

    申请日:2007-03-20

    IPC分类号: C08L53/02 C08F297/04 C08F8/04

    摘要: A novel process for preparation of block copolymers containing, for example, alpha-methyl-styrene/styrene glassy blocks is claimed, where the glassy blocks contain 25-50 mol % alpha-methyl-styrene and have Tg values in the range of 120 to 140° C. The copolymerization process, which is conducted at 35 to 60° C. and relatively high solids contents and with continuous addition of styrene, results in very high conversions of the alpha-methyl-styrene. Selectively hydrogenated block copolymers having high glassy block Tg values are also disclosed and claimed as well as high service temperature elastomeric compositions comprising the block copolymer and an olefin polymer or copolymer.

    摘要翻译: 要求保护含有例如α-甲基 - 苯乙烯/苯乙烯玻璃质嵌段的嵌段共聚物的新方法,其中玻璃状嵌段含有25-50mol%的α-甲基 - 苯乙烯,Tg值在120〜 140℃。在35至60℃和相对较高的固体含量和连续加入苯乙烯时进行的共聚方法导致非常高的α-甲基 - 苯乙烯转化率。 还公开并要求保护具有高玻璃态Tg值的选择性氢化嵌段共聚物以及包含嵌段共聚物和烯烃聚合物或共聚物的高使用温度弹性体组合物。

    Photo-curable polymer composition and flexographic printing plates containing the same
    7.
    发明授权
    Photo-curable polymer composition and flexographic printing plates containing the same 失效
    光固化聚合物组合物和含有它们的柔版印刷版

    公开(公告)号:US06506541B2

    公开(公告)日:2003-01-14

    申请号:US09850649

    申请日:2001-05-07

    IPC分类号: G03C173

    摘要: The present invention relates to a photo-curable polymer composition comprising: a) a first block copolymer comprising at least two blocks A of polymerised mono-vinyl aromatic monomer, and at least one block B of polymerised conjugated diene monomer, wherein the total polymerised mono-vinyl aromatic monomer content is in the range from 5 to 25% by weight of the block copolymer; b) 5 to 10% by weight of a second block copolymer having one block A of polymerised mono-vinyl aromatic monomer and at least one block B of polymerised conjugated diene monomer, wherein the total polymerised mono-vinyl aromatic monomer content is in the range from 5 to 50% by weight of the block copolymer, alkoxy or epoxy functional groups; and c) at least 5% by weight of a low molecular weight block copolymer, wherein the total of (b) and (c) is from 15% by weight to 80% by weight, the low molecular weight block copolymer having one block A of polymerised mono-vinyl aromatic monomer, and at least one block B of polymerised conjugated diene monomer, and having a weight average molecular weight in the range of from 1,000 to 35,000.

    摘要翻译: 本发明涉及光固化聚合物组合物,其包含:a)包含聚合的单乙烯基芳族单体的至少两个嵌段A和至少一个聚合的共轭二烯单体的嵌段B的第一嵌段共聚物,其中总聚合的单 乙烯基芳族单体含量在嵌段共聚物的5至25重量%的范围内; b)5至10重量%的具有一个嵌段A的聚合的单乙烯基芳族单体和至少一个聚合的共轭二烯单体的嵌段B的第二嵌段共聚物,其中总聚合的单乙烯基芳族单体含量在 5〜50重量%的嵌段共聚物,烷氧基或环氧官能团; 和c)至少5重量%的低分子量嵌段共聚物,其中(b)和(c)的总量为15重量%至80重量%,低分子量嵌段共聚物具有一个嵌段A 的聚合的单乙烯基芳族单体和至少一个聚合的共轭二烯单体的嵌段B,并且其重均分子量在1,000至35,000的范围内。

    Foamable polymeric compositions and articles containing foamed compositions

    公开(公告)号:US20070155846A1

    公开(公告)日:2007-07-05

    申请号:US10589705

    申请日:2004-09-03

    IPC分类号: C08J9/00

    摘要: Foamable compositions which are usable for the manufacture of foamed, flexible, heat resistant, thermoplastic elastomeric articles, and which comprise at least: (a) 100 parts by weight of one ore more selectively hydrogenated block copolymers, having at least two resinous blocks A of non-hydrogenated predominantly polymerized monovinyl arene, and a selectively hydrogenated elastomeric block B, wherein said block B prior to hydrogenation being predominantly a polymerized conjugated diene or dienes, said block copolymer having a total apparent molecular weight of at least 250 kg/mole, and containing polymerized monovinyl arene blocks of true molecular weight of at least 18 kg/mole, (b) 5 to 50, preferably from 15 to 40 parts by weight of one or more selectively hydrogenated block copolymers having at least two resinous blocks A′ of non hydrogenated predominantly polymerized monovinyl arene, and an selectively hydrogenated elastomeric block B′, wherein said block B′ prior to hydrogenation has been derived from a polymerized conjugated diene or dienes as a major component which may be mixed with minor proportions of other copolymers (e.g. vinyl aromatic) i.e. ≦25 wt %, and said block copolymer having a total apparent molecular weight in the range of from 50,000 to 180,000, while the resinous blocks A′ shown an true molecular weight in the range of from 3 to 20 kg/mole and preferably from 5 to 15 kg/mole, (c) from 25 to 80 parts by weight of a linear crystalline polymer comprising propylene as major component, with a Vicat softening temperature in the range of from 130° C. to 180° C. and a MFR in the range of from 0.5 to 30 dg/min and a polydisperity index of at least 4.5, (d) from 100 to 250 parts by weight of a softener compatible with blocks B and B′, (e) from 0.01 to 3 wt %, relative to the weight of the primary component s (a) up to (e) of a solid chemical nucleating agent of the endothermic group in combination with a blowing agent, and optionally (f) one or more secondary components selected from PPO and/or any resins compatible with block copolymer component (a), antioxidants, UV-stabilizers, flame retardants, surface modifying agents and inorganic fillers and foamed articles derived from said compositions.

    Photo-curable polymer composition and flexographic printing plates containing the same
    10.
    发明授权
    Photo-curable polymer composition and flexographic printing plates containing the same 有权
    光固化聚合物组合物和含有它们的柔版印刷版

    公开(公告)号:US06326127B1

    公开(公告)日:2001-12-04

    申请号:US09464147

    申请日:1999-12-16

    IPC分类号: G03F7038

    摘要: The present invention relates to a photo-curable polymer composition comprising (a) a first block copolymer comprising at least two blocks A of polymerised monovinyl aromatic monomer, at least one internal block B of polymerised conjugated diene monomer, and at least one tapered or random block C of polymerised monovinyl aromatic monomer and polymerised conjugated diene monomer and/or at least one block D which may be a block of polymerised conjugated diene monomer or a tapered or random block of polymerised monovinyl aromatic monomer and polymerised conjugated diene monomer, wherein block C is an internal polymer block adjacent a terminal block A or an internal block A which is adjacent to a terminal block D, and block D is a terminal block adjacent an internal block A, and, optionally, a residue of a coupling agent, wherein the residue, if present, is derived from a coupling agent containing alkoxy or epoxy functional groups; and (b) a photo-initiator. The present invention further relates to a flexographic printing plate precursor comprising a photo-curable layer sandwiched between two release films or a release film and a support. In addition, the present invention relates to a cured polymer composition, obtainable by curing the photo-curable composition; to a flexographic printing plate containing the cured polymer composition, and to a process for printing on a substrate with the flexographic printing plate.

    摘要翻译: 本发明涉及光固化聚合物组合物,其包含(a)第一嵌段共聚物,其包含至少两个聚合的单乙烯基芳族单体的嵌段A,至少一个聚合的共轭二烯单体的内部嵌段B和至少一个渐缩的或随机的 聚合的单乙烯基芳族单体和聚合的共轭二烯单体的嵌段C和/或至少一个嵌段D,其可以是聚合的共轭二烯单体的嵌段或聚合的单乙烯基芳族单体和聚合的共轭二烯单体的渐缩或无规嵌段,其中嵌段C 是与端子块A相邻的内部聚合物嵌段或与端子块D相邻的内部块A,并且嵌段D是与内部嵌段A相邻的末端嵌段,以及任选的偶联剂的残基,其中, 残留物(如果存在)衍生自含有烷氧基或环氧官能团的偶联剂; 和(b)光引发剂。 本发明还涉及柔性版印刷版前体,其包含夹在两个释放膜或剥离膜和支持体之间的可光固化层。 另外,本发明涉及通过使光固化性组合物固化得到的固化聚合物组合物, 涉及含有固化的聚合物组合物的柔版印刷版,以及用柔版印刷版在基材上印刷的方法。