INTERPENETRATING-POLYMER NETWORK PHASE-TRANSITION GELS - Patent 0569542

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EP 0 569 542 A1

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(43)	Date of publication:
	18.11.1993 Bulletin 1993/46

(21)	Application number: 92906367.0

(22)	Date of filing: 31.01.1992

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International Patent Classification (IPC):

A61K 9/ 00^{( . )}
A61K 47/ 32^{( . )}
C08L 101/ 00^{( . )}

A61K 9/ 20^{( . )}
C08L 33/ 24^{( . )}

(86)	International application number:
	PCT/US1992/000797

(87)	International publication number:
	WO 1992/013566 (20.08.1992 Gazette 1992/22)

(84)	Designated Contracting States:
	AT BE CH DE DK ES FR GB GR IT LI LU MC NL SE

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Priority:

31.01.1991 US 19910648563

(71)	Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
	Cambridge, MA 02139 (US)

(72)	Inventors:
	TANAKA, Toyoichi Wellesley, MA 02181 (US) ILMAIN, Franck F-42000 S.-Etienne (FR) KOKUFUTA, Etsuo Tsukuba 305 (JP) ANNAKA, Masahiko Arlington, MA 02174 (US)

(74)	Representative: Holdcroft, James Gerald, Dr.
	Graham Watt & Co., Riverhead Sevenoaks, Kent TN13 2BN Sevenoaks, Kent TN13 2BN (GB)

(54)	INTERPENETRATING-POLYMER NETWORK PHASE-TRANSITION GELS