EP 3612586 A1 20200226 - PHENOL-FREE IMPREGNATION RESIN
Title (en)
PHENOL-FREE IMPREGNATION RESIN
Title (de)
PHENOLFREIES IMPRÄGNIERHARZ
Title (fr)
RÉSINE D'IMPRÉGNATION SANS PHÉNOL
Publication
Application
Priority
- FI 20175363 A 20170421
- FI 2018050286 W 20180423
Abstract (en)
[origin: WO2018193166A1] The present invention comprises a process for the production of essentially phenol-free impregnation resin and the composition and end-uses of the resin produced by this process or an otherwise similar resin. In the process, as the material comprising phenolic OH groups, essentially only lignin is used which is condensed with formaldehyde in the presence of catalyst at an elevated temperature.
IPC 8 full level
CPC (source: EP FI)
C07G 1/00 (2013.01 - FI); C08G 8/20 (2013.01 - EP FI); C08H 6/00 (2013.01 - EP FI); C09J 161/12 (2013.01 - EP FI)
Citation (search report)
See references of WO 2018193166A1
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 2018193166 A1 20181025; EP 3612586 A1 20200226; FI 129275 B 20211115; FI 20175363 A1 20181022
DOCDB simple family (application)
FI 2018050286 W 20180423; EP 18728202 A 20180423; FI 20175363 A 20170421