Search International and National Patent Collections
Some content of this application is unavailable at the moment.
If this situation persists, please contact us atFeedback&Contact
1. (WO1991018025) TERMINATION OF ANIONIC POLYMERIZATION
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1991/018025 International Application No.: PCT/EP1991/000899
Publication Date: 28.11.1991 International Filing Date: 13.05.1991
Chapter 2 Demand Filed: 10.10.1991
IPC:
C08C 19/44 (2006.01) ,C08F 2/42 (2006.01)
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
C
TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS
19
Chemical modification of rubber
30
Addition of a reagent which reacts with a hetero atom or a group containing hetero atoms of the macromolecule
42
reacting with metals or metal-containing groups
44
of polymers containing metal atoms exclusively at one or both ends of the skeleton
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
F
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
2
Processes of polymerisation
38
Polymerisation using regulators, e.g. chain terminating agents
42
using short-stopping agents
Applicants:
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. [NL/NL]; Carel van Bylandtlaan 30 NL-2596 HR The Hague, NL (AT, BE, BR, CH, DE, DK, ES, FR, GB, GR, HU, IT, JP, KR, LU, NL, SE, SU)
SHELL CANADA LIMITED [CA/CA]; 400, 4th Avenue S.W. Calgary, Alberta T2P 2H5, CA (CA)
Inventors:
GIBLER, Carma, Joleen; US
CHAMBERLAIN, Linda, Rae; US
BROWNSCOMBE, Thomas, Fairchild; US
STEVENS, Craig, Aldred; US
Agent:
TUIJN, J., W.; Shell Internationale Research Maatschappij B.V. Patents, Licensing & Trade Marks Division P.O. Box 302 NL-2501 CH The Hague, NL
Priority Data:
522,69314.05.1990US
685,11115.04.1991US
Title (EN) TERMINATION OF ANIONIC POLYMERIZATION
(FR) TERMINAISON DE POLYMERISATION ANIONIQUE
Abstract:
(EN) This is an improvement upon a process which comprises anionically polymerizing monomers with an anionic polymerization initiator in a suitable solvent thereby creating a living polymer. The improvement comprises terminating the polymerization by the addition of a terminating agent selected from the group consisting of hydrogen or its isotopes, boranes, ammonia, halogens, hydrocarbons containing a C-H group where the carbon is connected directly to a triply-bound carbon or to two doubly-bound carbons and silanes.
(FR) On apporte une amélioration à un procédé qui comprend la polymérisation anionique de monomères avec un initiateur de polymérisation anionique dans un solvant approprié, ce qui crée un polymère vivant. L'amélioration comprend la terminaison de la polymérisation par l'addition d'un agent de terminaison sélectionné à partir du groupe constitué par de l'hydrogène ou ses isotopes, des boranes, de l'ammoniac, des halogènes, des hydrocarbures contenant un groupe C-H dans lequel le carbone est relié directement à un carbone à liaison triple ou à deux carbones à liaison double et des silanes.
Designated States: BR, CA, HU, JP, KR, SU
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LU, NL, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP0528919JP2986212JPH05506471CA2080595