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1. WO1993004127 - PROCESS FOR FORMING IMPROVED LIQUID CRYSTALLINE POLYMER BLENDS

Considered void:  06.12.1993
Publication Number WO/1993/004127
Publication Date 04.03.1993
International Application No. PCT/US1992/002947
International Filing Date 10.04.1992
Chapter 2 Demand Filed 10.03.1993
IPC
C08L 67/00 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
67Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
C08L 77/12 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
77Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
12Polyester-amides
C09K 19/38 2006.01
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
KMATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
19Liquid crystal materials
04characterised by the chemical structure of the liquid crystal components
38Polymers, e.g. polyamides
CPC
C08L 67/00
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
67Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain
C08L 77/12
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
77Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain
12Polyester-amides
C09K 19/3809
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
19Liquid crystal materials
04characterised by the chemical structure of the liquid crystal components ; , e.g. by a specific unit
38Polymers
3804with mesogenic groups in the main chain
3809Polyesters; Polyester derivatives, e.g. polyamides
Applicants
  • HOECHST CELANESE CORPORATION [US]/[US]
Inventors
  • CHARBONNEAU, Larry, F.
  • GUPTA, Balaram
  • LINSTID, H., Clay, III
  • SAWYER, Linda, C.
  • SHEPHERD, James, P.
Agents
  • WINTER, Richard, C., PCT International, Inc.
  • McGINNIS, James, L.
Priority Data
746,30714.08.1991US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) PROCESS FOR FORMING IMPROVED LIQUID CRYSTALLINE POLYMER BLENDS
(FR) PROCEDE DE PRODUCTION DE MELANGES POLYMERES CRISTALLINS LIQUIDES AMELIORES
Abstract
(EN)
An improved liquid crystalline polymer blend is produced by mixing a preformed thermotropic liquid crystalline polymer in the melt phase with reactants needed to form a second liquid crystalline polymer under conditions sufficient to form the second liquid crystalline polymer. The resulting blends are anisotropic and have improved morphology and improved melt processability. The method is particularly useful when the second liquid crystalline polymer is biphasic or is difficult to synthesize or process in the melt.
(FR)
On produit un mélange polymère cristallin liquide amélioré en mélangeant un polymère cristallin liquide thermotrope et préformé, dans la phase de fusion avec les réactifs requis pour former un second polymère cristallin liquide dans des conditions propices à la formation du second polymère cristallin liquide. Les mélanges obtenus sont anisotropes et présentent une morphologie améliorée ainsi qu'une meilleure aptitude au traitement en fusion. Le procédé est particulièrement utile lorsque le second polymère cristallin liquide comporte deux phases ou est difficile à synthétiser ou à traiter en fusion.
Also published as
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