公开(公告)号：CA2257844C

公开(公告)日：2005-11-29

申请号：CA2257844

申请日：1997-06-11

Applicant: EXXON CHEMICAL PATENTS INC

Inventor： GINDELBERGER DAVID EDWARD ,  ROSSI ALBERT ,  EMERT JACOB ISAAC ,  SHER JAIMES ,  STANAT JON EDMOND ,  STOKES JAMES PETER

IPC: C08F8/00 ,  C08F10/00 ,  C10M143/00

Abstract: Polymers (including copolymers) derived from one or more olefins, such including ethylene and C3-C20 .alpha.-olefins such as propylene and 1-butene, which polymers have (a) an average ethylene sequence length, ESL, of from about 1.0 to less than about 3.0; (b) an average of at least 5 branches per 100 carbon atoms of the polymer chains comprising the polymer; (c) at least about 50 % of said branches being methyl and/or ethyl branches; (d) at least about 30 % of said polymer chains terminated with a vinyl or vinylene group; (e) a number average molecular weight, Mn, or from about 300 to about 15,000 when the polymer is intended for dispersant or wax crystal modifier uses and up to about 500,000 where intended for viscosity modifier uses; and (f) substantial solubility in hydrocarbon and/or synthetic base oil. The polymers are produced using late-transition-metal catalyst systems and, preferably, inexpensive, highly dilute refinery or steam cracker feed streams that have undergone only limited clean-up steps. Fuel a nd lubricating oil additives, particularly dispersants, wax crystal modifiers and flow improvers, are produced. Where functionalization and derivatization of these polymers is required for such additives it is facilitated by the olefinic structures available in the polymer chains.

公开(公告)号：CA2383051A1

公开(公告)日：2001-03-08

申请号：CA2383051

申请日：2000-09-01

Applicant: EXXON CHEMICAL PATENTS INC

Inventor： BRANT PATRICK ,  CHAMBON FRANCOIS HENRI ,  STOKES JAMES PETER ,  SRINIVAS SRIVATSAN WATSON

IPC: B29C55/00 ,  C08J5/18 ,  C08K5/00 ,  C08L23/04 ,  C08L23/08 ,  C08L23/10 ,  C08L23/14 ,  C08L25/04 ,  C08L25/06

Abstract: The present invention relates to a cold-drawn breathable film formed from a blend of a soft polymer component and a hard polymer component. The soft polymer component (SPC) is a copolymer of a major olefinic monomer and a min or olefinic monomer. The major olefinic monomer is either ethylene or propylene and forms the majority of the SPC. Preferred films after cold-drawing exhibi t a water vapor transmission rate (WVTR) of at least 100 g-mil/m2-day.

公开(公告)号：CA2263959C

公开(公告)日：2006-05-16

申请号：CA2263959

申请日：1997-07-14

Applicant: EXXON CHEMICAL PATENTS INC

Inventor： STANAT JON EDMOND ,  GINDELBERGER DAVID EDWARD ,  STOKES JAMES PETER ,  EMERT JACOB ISAAC ,  ROSSI ALBERT ,  SHER JAIMES

IPC: C08F210/00 ,  C10L1/18 ,  C10L1/195 ,  C10L1/198 ,  C10L1/22 ,  C10L1/236 ,  C10L1/238 ,  C10L1/24 ,  C10L1/30 ,  C10L10/00 ,  C10M145/04 ,  C10M145/14 ,  C10M149/04 ,  C10M149/06 ,  C10M149/14 ,  C10M157/00 ,  C10M177/00 ,  C10N30/04 ,  C10N40/25

Abstract: Polar monomer-containing copolymers derived from at least one .alpha., ,.bet a. unsaturated carbonyl compound, such as alkyl acrylates and one or more olefins, such olefins including ethylene and C3-C20 .alpha.-olefins such as propylene and 1-butene, which copolymers have (a) an average ethylene sequence length, ESL, of from about 1.0 to less than about 3.0; (b) an average of at least 5 branches per 100 carbon atoms of the copolymer chains comprising the copolymer; (c) at least about 50 % of said branches being methyl and/or ethyl branches; (d) substantially all of said incorporated polar monomer is present at the terminal position o f said branches; (e) at least about 30 % of said copolymer chains terminated with a vinyl or vinylene group; (f) a number average molecular weight, Mn, of from about 300 to about 15,000 when the copolymer is intended for dispersant or wax crystal modifier uses and up to about 500,000 where intended for viscosity modifier uses; and (g) substantial solubility in hydrocarbon and/or synthetic base oil. The copolymers are produced using late-transition-metal catalyst systems and, as an olefin monomer source other than ethylene preferably inexpensive, highly dilute refinery or steam cracker feed streams that have undergone only limited clean-up steps. Fuel and lubricating oil additives, particularly dispersants, wax crystal modifiers and flow improvers, are produced. Where functionalization and derivatization of these copolymers are required for such additives it is facilitated by the olefinic structures available in the copolymer chains.

公开(公告)号：AU732240B2

公开(公告)日：2001-04-12

申请号：AU3385597

申请日：1997-06-11

Applicant: EXXON CHEMICAL PATENTS INC

Inventor： STOKES JAMES PETER ,  STANAT JON EDMOND ,  SHER JAIMES ,  GINDELBERGER DAVID EDWARD ,  EMERT JACOB ISAAC ,  ROSSI ALBERT

IPC: C10M143/00 ,  C08F2/00 ,  C08F4/642 ,  C08F8/00 ,  C08F10/00 ,  C08F10/02 ,  C08F110/14 ,  C08F210/14 ,  C08F216/38 ,  C08F220/12 ,  C10L1/16 ,  C10L1/195 ,  C10L1/196 ,  C10L1/198 ,  C10L1/236 ,  C10L1/238 ,  C10L1/24 ,  C10L1/26 ,  C10L1/30 ,  C10L10/00 ,  C10M129/93 ,  C10M129/95 ,  C10M133/52 ,  C10M143/08 ,  C10M149/02 ,  C10M157/00 ,  C10M159/16 ,  C10M171/00

Abstract: Polymers (including copolymers) derived from one or more olefins, such including ethylene and C3-C20 alpha-olefins such as propylene and 1-butene, which polymers have (a) an average ethylene sequence length, ESL, of from, about 1.0 to less than about 3.0; (b) an average of at least 5 branches per 100 carbon atoms of the polymer chains comprising the polymer; (c) at least about 50% of said branches being methyl and/or ethyl branches; (d) at least about 30% of said polymer chains terminated with a vinyl or vinylene group; (e) a number average molecular weight, Mn, of from about 300 to about 15,000 when the polymer is intended for dispersant or wax crystal modifier uses and up to about 500,000 where intended for viscosity modifier uses; and (f) substantial solubility in hydrocarbon and/or synthetic base oil. The polymers are produced using late-transition-metal catalyst systems and, preferably, inexpensive, highly dilute refinery or steam cracker feed streams that have undergone only limited clean-up steps. Fuel and lubricating oil additives, particularly dispersants, wax crystal modifiers and flow improvers, are produced. Where functionalization and derivatization of these polymers is required for such additives it is facilitated by the olefinic structures available in the polymer chains.