公开(公告)号：WO1997012934A1

公开(公告)日：1997-04-10

申请号：PCT/US1996015863

申请日：1996-10-02

Applicant: THE DOW CHEMICAL COMPANY

Inventor： THE DOW CHEMICAL COMPANY ,  PENFOLD, John ,  FANICHET, Line, F. ,  WILSON, Craig, A. ,  CREE, Stephen, H. ,  DE VRIES, Sjoerd, A.

IPC: C08L23/16

CPC classification number: C08L23/04 ,  C08L23/0815 ,  C08L2205/02 ,  C08L2666/04

Abstract: Crosslinkable polyolefin compositions, articles prepared from such compositions, and processes for making such compositions are described that possess both good processability and fast cure rates. The crosslinkable polyolefin compositions are preferably bi-disperse blends of ethylene polymers of the same polymer family having differing number average molecular weights as obtained by deconvolution in which Mn1/Mn2 > 5, mn2 > 3000 and 0.7 >/= (A1/(A1 + A2)) >/= 0.15, wherein Mn1 represents the number average molecular weight of the first deconvoluted component, Mn2 represents the number average molecular weight of the second deconvoluted component. A1 and A2 are the relative proportions of the first and second components. These crosslinkable polyolefin compositions are useful for the manufacture of various articles, such as wire and cable coatings, weather-stripping and seals, gaskets, articles made from foamed and/or sponge-like crosslinked polyolefin of either closed or open cell structure and/or combinations thereof, hollow containers, hollow tanks, medical appliances, drapes and coverings, items of health and personal care, fibres, tapes, tubes, pipes and hoses, bellows, boots, gaiters and footwear.

Abstract translation: 描述了可交联的聚烯烃组合物，由这些组合物制备的制品，以及制备这些组合物的方法，具有良好的加工性能和快速固化速度。 可交联聚烯烃组合物优选是通过其中Mn1 / Mn2> 5，mn2> 3000和0.7> / =（A1 /（A1 + A2））> / = 0.15，其中Mn1表示第一去卷积成分的数均分子量，Mn2表示第二去卷积成分的数均分子量。 A1和A2是第一和第二组分的相对比例。 这些可交联聚烯烃组合物可用于制造各种制品，例如电线和电缆涂层，气候剥离和密封件，垫圈，由封闭或开孔结构的泡沫和/或海绵状交联聚烯烃制成的制品和/或 其组合，中空容器，中空罐，医疗器具，窗帘和覆盖物，健康和个人护理物品，纤维，带，管，管和软管，波纹管，靴子，踩踏器和鞋类。

公开(公告)号：WO1990008167A1

公开(公告)日：1990-07-26

申请号：PCT/US1990000287

申请日：1990-01-17

Applicant: THE DOW CHEMICAL COMPANY

Inventor： THE DOW CHEMICAL COMPANY ,  VAN DER WAL, Hanno, R. ,  PENFOLD, John ,  BONK, Henry, W.

IPC: C08G18/40

CPC classification number: C08G18/4018 ,  C08G18/6603

Abstract: The present invention invention concerns a thermoplastic polyurethane material which is the reaction product of (1) a mixture of (a) 0.86 to 0.98 mole equivalent of a polyester diol having the molecular weight of from 650 to 5,000 and (b) 0.02 to 0.14 mole equivalent of a polyether diol having the molecular weight of from 2,000 to 5,000, and (2) a difunctional chain extender with (3) an organic diisocyanate. These polyurethane materials exhibit high resistance to severe abrasion forces while retaining desirable mechanical properties and are useful for the manufacture of shoe soles, ski boots, ski bindings, conveyor belts and screens used by mining industry and the like.