EP 0593664 A4 19940615 - BLEND OF FLEXIBLE COIL POLYMER AND THERMOTROPIC LIQUID CRYSTAL SEGMENTED BLOCK COPOLYMER
Title (en)
BLEND OF FLEXIBLE COIL POLYMER AND THERMOTROPIC LIQUID CRYSTAL SEGMENTED BLOCK COPOLYMER
Publication
Application
Priority
- US 9205670 W 19920707
- US 72660091 A 19910708
Abstract (en)
[origin: WO9301238A1] Novel segmented block copolymers comprising mesogenic (or ''rod'') blocks and flexible coil polymer blocks are disclosed which are especially adapted to be blended with a substantially similar flexible coil polymer matrix to improve the mechanical properties of the flexible coil matric. For example, blends of poly(butylene terephthalate) (PBT) with a liquid crystalline block copolymer, poly(tetramethylene 4,4'-terephthaloyldioxydibenzoate)-b-poly(butylene terephthalate) (LCP-b-PBT) were prepared by precipitation from a common solvent, dried, and melt extruded through a capillary die to produce a monofilament. In all blends, the LCP-b-PBT domains were less than 0.1 mu m in size and ultrafinely and uniformly dispersed. Even though the blends were only moderately elongated into fibrils, interfacial adhesion between the LCP-b-PBT and the pure PBT appeared excellent.
IPC 1-7
IPC 8 full level
C08G 69/44 (2006.01); C08L 67/00 (2006.01); C08L 67/02 (2006.01); C08L 69/00 (2006.01); C08L 77/00 (2006.01)
CPC (source: EP)
C08L 67/02 (2013.01); C08L 67/025 (2013.01)
Citation (search report)
- No further relevant documents disclosed
- See references of WO 9301238A1
Designated contracting state (EPC)
CH DE ES FR GB IT LI LU NL
DOCDB simple family (publication)
WO 9301238 A1 19930121; CA 2113114 A1 19930121; EP 0593664 A1 19940427; EP 0593664 A4 19940615; JP H06508879 A 19941006
DOCDB simple family (application)
US 9205670 W 19920707; CA 2113114 A 19920707; EP 92915938 A 19920707; JP 50237592 A 19920707