COPOLYMERS CONTAINING POLYBENZOXAZOLE, POLYBENZOTHIAZOLE AND POLYBENZIMIDAZOLE MOIETIES - Patent 0392008

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EP 0 392 008 A1

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(43)	Date of publication:
	17.10.1990 Bulletin 1990/42

(21)	Application number: 89912725.0

(22)	Date of filing: 06.10.1989

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International Patent Classification (IPC):

C08G 69/ 40^{( . )}
C08G 67/ 00^{( . )}
C08G 69/ 48^{( . )}
C08G 73/ 18^{( . )}
C08G 75/ 00^{( . )}
C08G 75/ 32^{( . )}
C08L 71/ 00^{( . )}

C08G 65/ 40^{( . )}
C08G 69/ 42^{( . )}
C08G 73/ 10^{( . )}
C08G 73/ 22^{( . )}
C08G 75/ 20^{( . )}
C08G 81/ 00^{( . )}

(86)	International application number:
	PCT/US1989/004464

(87)	International publication number:
	WO 1990/003995 (19.04.1990 Gazette 1990/09)

(84)	Designated Contracting States:
	BE CH DE FR GB IT LI NL

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Priority:

11.10.1988 US 19880256338
23.03.1989 US 19890327925
07.07.1989 US 19890378360
15.09.1989 US 19890407973

(71)	Applicant: THE DOW CHEMICAL COMPANY
	Midland, Michigan 48640 (US)

(72)	Inventors:
	HARRIS, William, J. Midland, MI 48640 (US) HWANG, Wen-Fang Midland, MI 48640 (US)

(74)	Representative: Hann, Michael, Dr.
	Patentanwälte Dr. Michael Hann Dr. H.-G. Sternagel Sander Aue 30 D-51465 Bergisch Gladbach D-51465 Bergisch Gladbach (DE)

(54)	COPOLYMERS CONTAINING POLYBENZOXAZOLE, POLYBENZOTHIAZOLE AND POLYBENZIMIDAZOLE MOIETIES