Processing

Please wait...

Settings

Settings

1. WO2000040625 - ETHYLENE COPOLYMERS WITH NARROW COMPOSITION DISTRIBUTION AND HIGH MELTING TEMPERATURES, AND METHODS OF PRODUCTION THEREOF

Publication Number WO/2000/040625
Publication Date 13.07.2000
International Application No. PCT/US1999/015518
International Filing Date 08.07.1999
IPC
C08F 4/659 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
4Polymerisation catalysts
42Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
44selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths, or actinides
60together with refractory metals, iron group metals, platinum group metals, manganese, technetium, rhenium, or compounds thereof
62Refractory metals or compounds thereof
64Titanium, zirconium, hafnium, or compounds thereof
659Component covered by group C08F4/6455
C08F 4/6592 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
4Polymerisation catalysts
42Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
44selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths, or actinides
60together with refractory metals, iron group metals, platinum group metals, manganese, technetium, rhenium, or compounds thereof
62Refractory metals or compounds thereof
64Titanium, zirconium, hafnium, or compounds thereof
659Component covered by group C08F4/6455
6592containing at least one cyclopentadienyl ring, condensed or not, e.g. an indenyl or a fluorenyl ring
C08F 10/02 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
10Homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
02Ethene
C08F 210/16 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
210Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
16Copolymers of ethene with alpha-alkenes, e.g. EP rubbers
CPC
C08F 10/02
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
10Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
02Ethene
C08F 210/16
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
210Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
16Copolymers of ethene with alpha-alkenes, e.g. EP rubbers
C08F 4/65912
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
4Polymerisation catalysts
42Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
44selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides
60together with refractory metals, iron group metals, platinum group metals, manganese, rhenium ; technetium; or compounds thereof
62Refractory metals or compounds thereof
64Titanium, zirconium, hafnium or compounds thereof
659Component covered by group C08F4/64 containing a transition metal-carbon bond
65912in combination with an organoaluminium compound
C08F 4/65927
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
4Polymerisation catalysts
42Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
44selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides
60together with refractory metals, iron group metals, platinum group metals, manganese, rhenium ; technetium; or compounds thereof
62Refractory metals or compounds thereof
64Titanium, zirconium, hafnium or compounds thereof
659Component covered by group C08F4/64 containing a transition metal-carbon bond
6592containing at least one cyclopentadienyl ring, condensed or not, e.g. an indenyl or a fluorenyl ring
65922containing at least two cyclopentadienyl rings, fused or not
65927two cyclopentadienyl rings being mutually bridged
Applicants
  • THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY [US/US]; Suite 350 900 Welch Road Palo Alto, CA 94304-1850, US (AllExceptUS)
  • WAYMOUTH, Robert, M. [US/US]; US (UsOnly)
  • PETOFF, Jennifer, L., Maciejewski [US/US]; US (UsOnly)
  • KRAVCHENKO, Raisa L. [RU/US]; US (UsOnly)
Inventors
  • WAYMOUTH, Robert, M.; US
  • PETOFF, Jennifer, L., Maciejewski; US
  • KRAVCHENKO, Raisa L.; US
Agents
  • DULIN, Jacques, M.; Heller Ehrman White & McAuliffe 525 University Avenue Palo Alto, CA 94301, US
Priority Data
09/227,22808.01.1999US
60/137,10702.06.1999US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) ETHYLENE COPOLYMERS WITH NARROW COMPOSITION DISTRIBUTION AND HIGH MELTING TEMPERATURES, AND METHODS OF PRODUCTION THEREOF
(FR) COPOLYMERES D'ETHYLENE A REPARTITION ETROITE DE LA COMPOSITION ET A TEMPERATURES DE FUSION ELEVEES, ET PROCEDES DE PRODUCTION DESDITS COPOLYMERES
Abstract
(EN)
A copolymer of ethylene and at least one comonomer containing at least 4 carbon atoms is characterized by a polydispersity greater than 2, a broad melting point transition as measured by differential scanning calorimetry, and a narrow composition distribution. Ethylene/C4+ copolymers also may show at least one peak melting point above the peak melting point of a random copolymer of the same monomer unit composition. These copolymers are made by contacting ethylene and a comonomer under polymerization conditions in the presence of a suitable fluxional catalyst system.
(FR)
Copolymère d'éthylène et d'au moins un comonomère contenant au moins 4 atomes de carbone, qui est caractérisé par une polydispersité supérieure à 2, une large transition du point de fusion telle que mesurée par l'analyse calorimétrique différentielle à compensation de puissance, et une répartition étroite de la composition. Des copolymères éthylène/C4+ peuvent également présenter au moins un point de fusion maximal supérieur au point de fusion maximal d'un copolymère statistique ayant la même composition d'unités monomères. Ces copolymères sont obtenus par mise en contact d'éthylène et d'un comonomère dans des conditions de polymérisation en présence d'un système de fluxion catalyseur approprié.
Latest bibliographic data on file with the International Bureau