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PROCEDE CONTINU D'ESTERIFICATION ET/OU D'AMIDIFICATION, SANS SOLVANT ORGANIQUE, D'UN HOMOPOLYMERE OU COPOLYMERE ACIDE
The present invention relates to a continuous process for preparing a comb polymer, without organic solvent, by esterification and/or amidification of an acidic homopolymer or copolymer, which consists in performing the esterification and/or amidification of said homopolymer/copolymer by reaction at elevated temperature in the mixing and transportation zone of a tubular reactor, optionally equipped with a water removal system, in the presence of at least one poly(alkylene glycol) in solid or molten form and of an antioxidant, said esterification and/or amidification taking place at a temperature greater than or equal to 170° C.
PROCEDE CONTINU D'ESTERIFICATION ET/OU D'AMIDIFICATION, SANS SOLVANT ORGANIQUE, D'UN HOMOPOLYMERE OU COPOLYMERE ACIDE
The present invention relates to a continuous process for preparing a comb polymer, without organic solvent, by esterification and/or amidification of an acidic homopolymer or copolymer, which consists in performing the esterification and/or amidification of said homopolymer/copolymer by reaction at elevated temperature in the mixing and transportation zone of a tubular reactor, optionally equipped with a water removal system, in the presence of at least one poly(alkylene glycol) in solid or molten form and of an antioxidant, said esterification and/or amidification taking place at a temperature greater than or equal to 170° C.
PROCEDE CONTINU D'ESTERIFICATION ET/OU D'AMIDIFICATION, SANS SOLVANT ORGANIQUE, D'UN HOMOPOLYMERE OU COPOLYMERE ACIDE
CONTINUOUS ESTERIFICATION AND/OR AMIDIFICATION METHOD, WITHOUT ORGANIC SOLVENT, OF AN ACID COPOLYMER OR HOMOPOLYMER
KONTINUIERLICHES VERESTERUNGS- UND/ODER AMIDIERUNGSVERFAHREN OHNE ORGANISCHES LÖSUNGSMITTEL EINES SÄURECOPOLYMERS ODER HOMOPOLYMERS
SUAU JEAN-MARC (author) / PLATEL DAVID (author) / CHAMPAGNE CLÉMENTINE (author) / MATTER YVES (author)
2017-10-18
Patent
Electronic Resource
French
IPC:
B29C
Formen oder Verbinden von Kunststoffen
,
SHAPING OR JOINING OF PLASTICS
/
C08G
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
,
Makromolekulare Verbindungen, anders erhalten als durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind
/
B01J
Chemische oder physikalische Verfahren, z.B. Katalyse oder Kolloidchemie
,
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
/
B29B
PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED
,
Vorbereiten oder Vorbehandeln der zu verformenden Masse
/
C04B
Kalk
,
LIME
/
C08F
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
,
Makromolekulare Verbindungen, erhalten durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind
/
C08K
Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe
,
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS
/
C08L
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
,
Massen auf Basis makromolekularer Verbindungen
/
C09K
Materialien für Anwendungen, soweit nicht anderweitig vorgesehen
,
MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR
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