Hybrid polymer materials for liquid crystal alignment layers

Details Hybrid polymer materials for liquid crystal alignment layers Hybrid polymer materials for liquid crystal alignment layers

2005-07-19

2005-07-19

Woodward, Ana (Department: 1711)

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

Synthetic resins

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

C525S181000, C525S421000, C525S422000, C525S426000, C525S436000

Reexamination Certificate

active

06919404

ABSTRACT:
The present invention provides novel hybrid polymer optical alignment layers for inducing alignment of a liquid crystal medium. Hybrid polymers of this invention are prepared from at least one component selected from the group consisting of monomer, macromonomer and polymer within the class of polyimides, poly(amic acids) and esters thereof and at least one component selected from the group consisting of addition monomer and functionalized addition polymer wherein the two components are covalently bonded to form a copolymer. The invention further describes liquid crystal displays comprising the novel branched hybrid polymer optical alignment layers.

REFERENCES:
patent: 4157430 (1979-06-01), Hergenrother et al.
patent: 4451402 (1984-05-01), D'Alelio et al.
patent: 4539342 (1985-09-01), Lee et al.
patent: 4778859 (1988-10-01), Ai et al.
patent: 5773559 (1998-06-01), Miyamoto et al.
patent: 5824377 (1998-10-01), Pirwitz et al.
patent: 5858274 (1999-01-01), Mishina et al.
patent: 5958292 (1999-09-01), Gibbons et al.
patent: 6214923 (2001-04-01), Goto et al.
patent: 6221940 (2001-04-01), Puyenbroek et al.
patent: 6224788 (2001-05-01), Ogawa et al.
patent: 6335409 (2002-01-01), Herr et al.
patent: 6340506 (2002-01-01), Buchecker et al.
patent: 1229066 (2002-07-01), None
patent: 0153384 (2001-07-01), None
patent: 0172871 (2001-10-01), None
J.L. Hedrick, et al.Nanoporous Polyimides,Advances in Polymer Science, vol. 141, 1-43, 1999.
J.L. Hedrick, et al.Polyimide foams derived from a high Tg polyimide with grafted poly(alpha-methylstyrene), Polymer, vol. 37, No. 33, 5229-5236, 1996.
Coessens, V., Pintauer, T., Matyjaszewski, K.Functional Polymers by Atom Transfer Radical Polymerization,Prog. Polym. Sci. 26, 337-377, 2001.
Hedrick, J.L., Hawker, C.J., Dipietro, R., Jerome, R., Charlier., Y.The Use of Styrenic Copolymers to Generate Polyimide Nanofoams,Polymer, vol. 36, No. 25, 4855-4866, 1995.
Kamigaito, M., Ando, T., Sawamoto, M.Metal-Catalyzed Living Radical Polymerization,Chem. Rev, 3689-3745, 2001.
Matyjaszewski, K., Nakagawa, Y., Gaynor, S.,Synthesis of Well-defined Azido and Amino End-functionalized Polystyrene by Atom Transfer Radical Polymerization.Macromol. Rapid Commun. 18, 1057-1066, 1997.

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