Process for forming improved liquid crystalline polymer blends

Details Process for forming improved liquid crystalline polymer blends Process for forming improved liquid crystalline polymer blends

1993-02-12

1995-02-28

Short, Patricia A.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525420, 525437, 525439, 525444, 525450, 524537, 524538, 524539, C08L 6703, C08L 6704, C08L 7712

Patent

active

053938488

ABSTRACT:
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.

REFERENCES:
patent: 3637595 (1972-01-01), Cottis et al.
patent: 3845099 (1974-10-01), Economy et al.
patent: 4161470 (1979-07-01), Calundann
patent: 4184996 (1980-01-01), Calundann
patent: 4228218 (1980-10-01), Takayanagi
patent: 4256624 (1981-03-01), Calundann
patent: 4267289 (1981-05-01), Froix
patent: 4276397 (1981-06-01), Froix
patent: 4330457 (1982-05-01), East et al.
patent: 4371660 (1983-02-01), Calundann et al.
patent: 4386174 (1983-05-01), Cogswell
patent: 4386186 (1983-05-01), Maresca
patent: 4408022 (1983-10-01), Cincotta
patent: 4414365 (1983-11-01), Sugimoto
patent: 4429078 (1984-01-01), Cogswell
patent: 4433083 (1984-02-01), Cogswell
patent: 4442057 (1984-04-01), Brody
patent: 4451611 (1984-05-01), Cincotta
patent: 4460735 (1984-07-01), Froix
patent: 4460736 (1984-07-01), Froix
patent: 4473682 (1984-09-01), Calundann et al.
patent: 4489190 (1984-12-01), Froix
patent: 4539386 (1985-09-01), Yoon
patent: 4563508 (1986-01-01), Cottis
patent: 4567227 (1986-01-01), Kiss
patent: 4611025 (1986-09-01), Akkapeddi
patent: 4725647 (1988-02-01), Maresca
patent: 4778858 (1988-10-01), Ginnings
patent: 5023284 (1991-06-01), Cheung
Synthesis and Structure of the P-Hydroxybenzoic Acid Polymer Journal of Polymer Science, vol. 14, 2207-2224 (1976).
Polyesters of Hydroxybenzoic Acids Journal of Applied Polymer Science, vol. II, Issue No. 5, pp. 198-202 (1959).
"Scheme II--Neighboring Group Participation in the Ring-Opening Polymerization of 1,6-Anhydro-2-0-benzoyl-3,4-di-0-benzyl-Beta-D-glacto-pyranose" (1), Maromolecules 1988, 21, 543-545, K. Kobayashi, et al.
"Anomalous Temperature Dependence of Viscosity of Thermotropic Polyester," Journal of Rheology, 30(3), 585-599 (1986), Gabor Kiss.

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