EP 3097409 A1 20161130 - METHOD FOR ACCELERATED DEGRADATION OF THERMOPLASTICS
Title (en)
METHOD FOR ACCELERATED DEGRADATION OF THERMOPLASTICS
Title (de)
VERFAHREN ZUM BESCHLEUNIGTEN ABBAU VON THERMOPLASTEN
Title (fr)
PROCÉDÉ DE DÉGRADATION ACCÉLÉRÉE DE MATIÈRES THERMOPLASTIQUES
Publication
Application
Priority
US 2014012701 W 20140123
Abstract (en)
[origin: WO2015112143A1] A method of determining degradation of a thermoplastic when exposed to light and heat includes illuminating the thermoplastic with a desired wavelength of light at a desired irradiance while maintaining the ambient air surrounding the thermoplastic at a desired temperature. The method is useful to measure the discoloration rate of transparent, translucent and opaque thermoplastics such as polycarbonates, the discoloration rate being determined by transmission or reflectance spectra of transmitted or reflected white light through or from the thermoplastic.
IPC 8 full level
G01N 25/02 (2006.01); G01N 33/44 (2006.01)
CPC (source: EP KR)
C08L 67/03 (2013.01 - KR); C08L 69/00 (2013.01 - KR); G01N 17/004 (2013.01 - EP KR); G01N 33/442 (2013.01 - EP KR)
Citation (search report)
See references of WO 2015112143A1
Citation (examination)
WO 2013109050 A1 20130725 - KOREA RES INST CHEM TECH [KR]
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2015112143 A1 20150730; CN 105899942 A 20160824; CN 105899942 B 20191217; EP 3097409 A1 20161130; KR 101944855 B1 20190201; KR 20160098331 A 20160818
DOCDB simple family (application)
US 2014012701 W 20140123; CN 201480072507 A 20140123; EP 14703232 A 20140123; KR 20167018392 A 20140123