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Machine translation
1. (WO1997022037) POLYMERS FOR REVERSIBLE PHOTOINDUCED SOL GEL TRANSITIONS
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1997/022037    International Application No.:    PCT/US1996/019709
Publication Date: 19.06.1997 International Filing Date: 11.12.1996
Chapter 2 Demand Filed:    10.07.1997    
IPC:
G03C 1/73 (2006.01), G03F 7/027 (2006.01), G03F 7/038 (2006.01), G03F 7/039 (2006.01)
Applicants: UNIVERSITY OF PITTSBURGH [US/US]; Cathedral of Learning, Pittsburgh, PA 15260 (US)
Inventors: RUSSELL, Alan, J.; (US).
BECKMAN, Eric, J.; (US).
ANDREOPOULOS, Fotios, M.; (US).
WAGNER, William, R.; (US)
Agent: BARTONY, Henry, E.; Bartony Hare & Edson, Law & Finance Building, Suite 1801, 429 Fourth Avenue, Pittsburgh, PA 15219 (US)
Priority Data:
08/571,250 12.12.1995 US
Title (EN) POLYMERS FOR REVERSIBLE PHOTOINDUCED SOL GEL TRANSITIONS
(FR) POLYMERES PERMETTANT UNE TRANSITION SOL - GEL PHOTOINDUITE ET REVERSIBLE
Abstract: front page image
(EN)The present invention provides cross-linked polymeric networks that are reversibly cross-linked upon exposure to light of a suitable wavelength. In one embodiment photocross-linkable branched hydrophilic polymers containing photochromic groups are synthesized. Ciannamylidene groups and derivatives of cinnamylidene are preferably used as the photochromic agents or photocross-linking agents.
(FR)L'invention concerne des réseaux polymères qui sont réticulés de manière réversible par exposition à une lumière d'une longueur d'onde appropriée. Dans une forme d'exécution, les polymères de l'invention sont des polymères hydrophiles ramifiés photoréticulables contenant des groupes photochromes. On utilise, de préférence, des groupes cinnamylidène et des dérivés de ces groupes comme agents photochromes ou comme agents de réticulation.
Designated States: AL, AM, AT, AU, AZ, BB, BG, BR, BY, CA, CH, CN, CZ, DE, DK, EE, ES, FI, GB, GE, HU, IL, IS, JP, KE, KG, KP, KR, KZ, LK, LR, LS, LT, LU, LV, MD, MG, MK, MN, MW, MX, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, TJ, TM, TR, TT, UA, UG, UZ, VN.
African Regional Intellectual Property Organization (KE, LS, MW, SD, SZ, UG)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, CH, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)