Global Patent Index - EP 1056986 A1

EP 1056986 A1 2000-12-06 - AUTOMATIC CONTROL OF THE HYDROPHILICITY OF A SOLID SURFACE BY INFRARED SPECTROSCOPY

Title (en)

AUTOMATIC CONTROL OF THE HYDROPHILICITY OF A SOLID SURFACE BY INFRARED SPECTROSCOPY

Title (de)

AUTOMATISCHE KONTROLLE DER HYDROPHILIE EINER FESTEN OBERFLÄCHE MIT INFRAROTSPEKTROSKOPIE

Title (fr)

COMMANDE AUTOMATIQUE DE L'HYDROPHILIE D'UNE SURFACE SOLIDE PAR SPECTROSCOPIE INFRAROUGE

Publication

EP 1056986 A1 (DE)

Application

EP 99948586 A

Priority

  • DE 19855957 A
  • EP 9907367 W

Abstract (en)

[origin: DE19855957A1] The invention relates to a method for controlling the hydrophilicity of a solid surface after a hydrophilizing treatment. According to said method, the surface is wetted with water, irradiated with infrared light, the intensity of the infrared light reflected by the surface is measured at a predetermined wavelength or at several predetermined wavelengths and the intensity measured is used to determine the median occupation with water of the surface. The method can be used, for example, for automatically controlling the effect of a purification process or a hydrophilizing treatment of plastics. If the results detected are insufficient, preferably alarm messages are output and/or measures for monitoring the preceding process steps are initiated.

IPC 1-7 (main, further and additional classification)

G01B 11/06; G01N 21/35

IPC 8 full level (invention and additional information)

C23G 3/00 (2006.01); G01N 21/3563 (2014.01); G01N 21/3577 (2014.01)

CPC (invention and additional information)

G01N 21/3563 (2013.01); G01N 21/3577 (2013.01)

Citation (search report)

See references of WO 0034737A1

Designated contracting state (EPC)

AT BE DE ES FR GB IT NL PT SE

EPO simple patent family

DE 19855957 A1 20000608; DE 19855957 B4 20081030; AR 021530 A1 20020724; AU 1033300 A 20000626; CA 2353600 A1 20000615; CZ 20011980 A3 20011017; EP 1056986 A1 20001206; JP 2002531855 A 20020924; WO 0034737 A1 20000615

INPADOC legal status


2005-03-30 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20040908

2004-01-07 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20031124

2000-12-06 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19991022

2000-12-06 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE DE ES FR GB IT NL PT SE