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1. (CA2080595) TERMINATION OF ANIONIC POLYMERIZATION

Office : Canada
Application Number: 2080595 Application Date: 13.05.1991
Publication Number: 2080595 Publication Date: 15.11.1991
Grant Number: Grant Date: 28.12.1999
Publication Kind : C
Prior PCT appl.: Application Number:EP1991000899 ; Publication Number: Click to see the data
IPC:
C08F 2/42
C08C 19/44
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
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
CPC:
C08F 2/42
C08C 19/44
Applicants:
Inventors: GIBLER, CARMA JOLEEN
BROWNSCOMBE, THOMAS FAIRCHILD
CHAMBERLAIN, LINDA RAE
STEVENS, CRAIG ALDRED
Priority Data: 522,693 14.05.1990 US
685,111 15.04.1991 US
Title: (EN) TERMINATION OF ANIONIC POLYMERIZATION
(FR) PROCEDE DE 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.


Also published as:
EP0528919JP2986212JPH05506471WO/1991/018025