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    • 6. 发明授权
    • Rheology modification of interpolymers of alpha-olefins and vinylidene aromatic monomers
    • α-烯烃和亚乙烯基芳族单体互聚物的流变改性
    • US06211302B1
    • 2001-04-03
    • US09129155
    • 1998-08-05
    • Thoi H. HoRay E. DrumrightRobert H. TerbrueggenClark H. CumminsMichael J. MullinsH. Craig Silvis
    • Thoi H. HoRay E. DrumrightRobert H. TerbrueggenClark H. CumminsMichael J. MullinsH. Craig Silvis
    • C08F830
    • C08L23/02C08G81/02C08K5/43C08L23/04C08L23/06C08L23/08C08L23/0815C08L23/0838C08L23/0853C08L23/16C08L2205/22C08L2312/00C08L2314/06Y10T428/1334Y10T428/1352Y10T428/1386Y10T428/139Y10T428/31913Y10T428/31917C08L2666/04
    • The invention includes a process of preparing a coupled polymer comprising heating an admixture containing (1) at least one interpolymer of an alpha olefin and vinyl aromatic monomer and (2) a coupling amount of at least one poly(sulfonyl azide) to at least the decomposition temperature of the poly(sulfonyl azide) for a period sufficient for decomposition of at least about 80 weight percent of the poly(sulfonyl azide) and sufficient to result in a coupled polymer. The polymer preferably. comprises ethylene, and a vinyl aromatic monomer, preferably styrene. The amount of poly(sulfonyl azide) is preferably from about 0.01 to about 1 weight percent of the interpolymer and the reaction preferably takes place at a temperature greater than about 150° C., more preferably 185° C. The process optionally and in one preferred embodiment additionally comprises steps (b) fabricating an article from the coupled polymer and (c) crosslinking the fabricated coupled polymer. The invention additionally includes any composition produced by a process of the invention and any article made from the composition, preferably articles formed from a melt of the composition, more preferably by blow molding, blowing a film, foaming, or profile extruding, most preferably to form a coating for wire or cable, a tube, a gasket, a seal, roofing, or fiber. The article is optionally calendared. Additionally, the invention includes the use of compositions of the invention as starting materials for forming processes in which the composition is melted and especially in blow molding, blowing a film, foaming, or profile extruding, most preferably to form a coating for wire or cable, a tube, a gasket, a seal, roofing, or fiber.
    • 本发明包括制备偶联聚合物的方法,其包括加热含有(1)至少一种α-烯烃和乙烯基芳族单体的共聚物的混合物和(2)至少一种聚(磺酰基叠氮化物)的偶联量至少至少 聚(磺酰基叠氮化物)的分解温度足以分解至少约80重量%的聚(磺酰基叠氮化物)并足以产生偶联聚合物。 优选聚合物。 包括乙烯和乙烯基芳族单体,优选苯乙烯。 聚(磺酰基叠氮化物)的量优选为互聚物的约0.01至约1重量%,并且反应优选在大于约150℃,更优选185℃的温度下进行。该方法任选地和一个 优选实施方案另外包括步骤(b)从偶联的聚合物制备制品和(c)交联制备的偶联聚合物。 本发明还包括通过本发明的方法制备的任何组合物和由组合物制成的任何制品,优选由组合物的熔体形成的制品,更优选通过吹塑,吹膜,发泡或型材挤出,最优选 形成电线或电缆的涂层,管,垫圈,密封件,屋顶或纤维。 该文章是可选的日历。 此外,本发明包括使用本发明的组合物作为其中组合物熔融的方法的起始原料,特别是在吹塑,吹塑膜,发泡或型材挤出中,最优选形成电线或电缆涂层 管,垫圈,密封件,屋顶或纤维。