公开(公告)号：WO2002074816A3

公开(公告)日：2002-09-26

申请号：PCT/US2002/007919

申请日：2002-03-15

Applicant: DOW GLOBAL TECHNOLOGIES INC. ,  DEGROOT, Alexander, W. ,  STEVENS, James, C. ,  DESJARDINS, Sylvie, Y. ,  WEINHOLD, Jeffrey ,  CARNAHAN, Edmund ,  GILLESPIE, David ,  VANDERLENDE, Daniel, D.

Inventor： DEGROOT, Alexander, W. ,  STEVENS, James, C. ,  DESJARDINS, Sylvie, Y. ,  WEINHOLD, Jeffrey ,  CARNAHAN, Edmund ,  GILLESPIE, David ,  VANDERLENDE, Daniel, D.

IPC: C08F10/00

Abstract: A polymer composition comprises: (a) a high molecular weight, branched component; and (b) a low molecular weight, branched component. Some polymer compositions are characterized by a substantial absent of amyl or methyl branches and a melt strength (MS) that satisfies the following relationship, formula (I), where x is greater than or equal to about 12.5 and y is greater than or equal to about 3. Some polymers are characterized by a melt strength (MS) that satisfies the following relationship, formula (II), where x is greater than or equal to about 3 and y is greater than or equal to about 4.5 and a molecular weight distribution of greater than 3. A process for making polymers is also disclosed.

公开(公告)号：WO1997015583A1

公开(公告)日：1997-05-01

申请号：PCT/US1996016012

申请日：1996-10-03

Applicant: THE DOW CHEMICAL COMPANY ,  NICKIAS, Peter, N. ,  MCADON, Mark, H. ,  PATTON, Jasson, T. ,  FRIEDRICHSEN, Bernard, P. ,  SOTO, Jorge ,  STEVENS, James, C. ,  VANDERLENDE, Daniel, D.

Inventor： THE DOW CHEMICAL COMPANY

IPC: C07F17/00

CPC classification number: C07F17/00 ,  C08F4/65908 ,  C08F4/6592 ,  C08F10/00

Abstract: Group 4 metal complexes 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, catalytic derivatives thereof and their use as olefin polymerization catalysts are disclosed.

Abstract translation: 第4族金属络合物，其包含在2或3位被取代的茚基和至少一个选自烃基，全氟取代烃基，甲硅烷基，甲基和其混合物的基团，所述茚基还通过二价 配体基团，其催化衍生物及其作为烯烃聚合催化剂的用途。

公开(公告)号：US1215073A

公开(公告)日：1917-02-06

申请号：US10377516

申请日：1916-06-15

Applicant: STEVENS JAMES C

Inventor： STEVENS JAMES C

CPC classification number: A01K97/24