公开(公告)号：EP0981556A1

公开(公告)日：2000-03-01

申请号：EP97922557.0

申请日：1997-04-30

申请人： THE DOW CHEMICAL COMPANY ,  DUPONT DOW ELASTOMERS L.L.C.

发明人： MANGOLD, Debra, J. ,  VANDERLENDE, Daniel, D. ,  KALE, Lawrence, T. ,  PARIKH, Deepak, R.

IPC分类号： C08F210/18 ,  C08F4/645

CPC分类号： C08F210/18 ,  C08F4/65908 ,  C08F10/00 ,  C08F4/65912 ,  C08F4/6592 ,  C08F210/06 ,  C08F236/20 ,  C08F2500/25 ,  C08F2500/03 ,  C08F2500/17

摘要： Random ethylene/alpha-olefin/diene monomer interpolymers with an alpha-olefin distribution that is more clustered than Bernoullian are prepared using Group 4 metal constrained geometry complex catalyst and an activating cocatalyst. The catalyst includes a fused ring indenyl derivative ligand.

公开(公告)号：EP0958318A1

公开(公告)日：1999-11-24

申请号：EP98901175.0

申请日：1998-01-06

申请人： THE DOW CHEMICAL COMPANY

发明人： JOHNSTON, Robert, T. ,  MORRISON, Evelyn, J. ,  MANGOLD, Debra, J. ,  HO, Thoi, H.

IPC分类号： C08J3 ,  C08F10 ,  C08F255 ,  C08G81 ,  C08J5 ,  C08L23 ,  C08L51 ,  C09D151 ,  C09J123 ,  C09J151 ,  C09K3 ,  D01F6

CPC分类号： C08G81/02 ,  C08L23/06 ,  C08L23/0815 ,  C08L2666/04

摘要： The subject invention pertains to heteromorphic polymer compositions characterized as comprising: (a) a homogeneous linear or substantially linear ethylene/α-olefin interpolymer backbone; and (b) a branch appending from the backbone, which branch comprises an ethylene homopolymer or ethylene/α-olefin interpolymer having a density which is at least 0.004 g/cm3 greater than that of the backbone. At least one of the backbone polymer or the branch polymer may be optionally functionalized to promote adhesion to polar surfaces. The heteromorphic polymer compositions of the invention exhibit enhanced upper service temperature. Also disclosed is a process for preparing the heteromorphic polymer compositions of the invention.

公开(公告)号：EP0977787A1

公开(公告)日：2000-02-09

申请号：EP98918908.9

申请日：1998-05-01

申请人： THE DOW CHEMICAL COMPANY

发明人： KALE, Lawrence, T. ,  VANDERLENDE, Daniel, D. ,  NICKIAS, Peter, N. ,  PATTON, Jasson, T. ,  STEVENS, James, C. ,  PARIKH, Deepak, R. ,  MANGOLD, Debra, J.

IPC分类号： C08F210/16 ,  C08F4/645

CPC分类号： C08F210/18 ,  C08F4/65912 ,  C08F10/00 ,  C08F210/16 ,  C08F4/65908 ,  C08F4/6592 ,  C08F210/14 ,  C08F2500/08 ,  C08F2500/12 ,  C08F2500/03 ,  C08F2500/19 ,  C08F210/06 ,  C08F236/20 ,  C08F2500/25 ,  C08F2500/20

摘要： The subject invention is directed to an olefin polymer produced by polymerizing at least one α-olefin in the presence of a Group 4 metal complex comprising an indenyl group substituted in the 2 or 3 position with at least one group selected from hydrocarbyl, perfluoro-substituted hydrocarbyl, silyl, germyl and mixtures thereof, said indenyl group further being covalently bonded to the metal by means of a divalent ligand group, wherein the divalent ligand comprises nitrogen or phosphorus having an aliphatic or alicyclic hydrocarby group covalently bonded thereto via a primary or secondary carbon. Preferred olefin polymers of the invention will be characterized as having a high molecular weight, narrow molecular weight distribution, high vinyl content, and a bimodal DSC melting curve or a deconvoluted ATREF or GPC curve which shows at least two distinct narrow peaks. The olefin polymer will have utiliity in a variety of applications, including but not limited to films, fibers, foams, molded parts, and as components of formulations such as adhesives, sealants, coatings, caulks, and asphalt.