EP 0000868 B1 19801210 - BODY WITH REVERSIBLY CHANGEABLE TEMPERATURE DEPENDENT EXTINCTION OF LIGHT AND METHOD FOR THE MANUFACTURE OF THIS BODY
Title (en)
BODY WITH REVERSIBLY CHANGEABLE TEMPERATURE DEPENDENT EXTINCTION OF LIGHT AND METHOD FOR THE MANUFACTURE OF THIS BODY
Publication
Application
Priority
DE 2738253 A 19770825
Abstract (en)
[origin: US4268413A] In order, in the case of bodies with reversibly-variable absorbence, to adjust the zone of transition from transparent to opaque or vice versa at desired goal temperatures and to give the bodies a preferred form, such as sheet form, they consist of a substantially optically transparent polymeric and/or resinous matrix material (A) and an organic substance (B) which is embedded therein as a dispersed second phase and which is at least partially insoluble therein, and which melts or congeals at the goal temperature of light-absorbence variation, and the refractive index of which, either above or below the goal temperature of the light-absorbence variation, substantially agrees with the refractive index of the matrix material. Such bodies are usable in sheet (or film) form, for example, for temperature-measuring devices, temperature-indicating devices, and slippery-ice warning devices, as well as for devices on glass windows for protection against solar irradiation.
IPC 1-7
IPC 8 full level
B41M 5/36 (2006.01); C09D 5/26 (2006.01); F24J 2/40 (2006.01); C09K 9/02 (2006.01); F24J 2/50 (2006.01); G01K 11/12 (2006.01); G01K 11/16 (2006.01); G02F 1/19 (2006.01)
CPC (source: EP US)
B41M 5/363 (2013.01 - EP US); F24S 50/80 (2018.05 - EP US); F24S 80/52 (2018.05 - EP US); G01K 11/16 (2013.01 - EP US); G02F 1/0147 (2013.01 - EP US); Y02B 10/20 (2013.01 - EP US); Y02E 10/40 (2013.01 - EP US); Y10S 252/962 (2013.01 - EP US); Y10T 428/22 (2015.01 - EP US); Y10T 428/25 (2015.01 - EP US)
Designated contracting state (EPC)
BE CH DE FR GB LU NL SE
DOCDB simple family (publication)
EP 0000868 A1 19790307; EP 0000868 B1 19801210; AT 375183 B 19840710; AT A543178 A 19831115; CA 1111633 A 19811103; DE 2738253 A1 19790301; DE 2860290 D1 19810219; IT 1159102 B 19870225; IT 7826881 A0 19780821; JP S54119377 A 19790917; NO 148234 B 19830524; NO 148234 C 19830907; NO 782695 L 19790227; US 4268413 A 19810519
DOCDB simple family (application)
EP 78100320 A 19780706; AT 543178 A 19780726; CA 309091 A 19780810; DE 2738253 A 19770825; DE 2860290 T 19780706; IT 2688178 A 19780821; JP 10375678 A 19780825; NO 782695 A 19780807; US 93212678 A 19780809