EP 0465434 A1 19920108 - Distilled, fractional and rectified coal tar oil for ecologically impregnating wood.

Title (en)

Distilled, fractional and rectified coal tar oil for ecologically impregnating wood.

Title (de)

Destilliertes, fraktioniertes und rektifiziertes Steinkohlenteeröl zur ökologischen Holzimprägnierung.

Title (fr)

Huile rectifiée, fractionnée et distillée de goudron de houille pour l'imprégnation écologique du bois.

Publication

EP 0465434 A1 19920108 (EN)

Application

EP 91830209 A 19910520

Priority

IT 1794690 A 19900626

Abstract (en)

The present invention regards a distilled, fractional and rectified coal tar oil for the ecological impregnation of wood characterized by the fact that it is the product of column rectification of naphthalene oil carried out at a temperature ranging from between 230xc and 330xC.

IPC 1-7

B27K 3/46; C10C 1/08

IPC 8 full level

B27K 3/46 (2006.01); C10C 1/08 (2006.01)

CPC (source: EP)

B27K 3/46 (2013.01); C10C 1/08 (2013.01)

Citation (search report)

[A] US 4670992 A 19870609 - LEONARD ROBERT E [US], et al
[A] DE 3811199 A1 19891019 - MUELLER BAUCHEMIE [DE]
[A] EP 0359935 A2 19900328 - VFT VERKAUFSGES TEER [DE]
[X] SOVIET INVENTIONS ILLUSTRATED, section Ch: Chemical, week E43, 8th December 1982, page 2, accession no. 92223 E/43, Derwent Publications Ltd, London, GB; & SU-A-891 747 (UKR COAL CHEM. INST.) 23-12-1981
[A] PATENT ABSTRACTS OF JAPAN, vol. 8, no. 218 (C-245)[1655], 4th October 1984; & JP-A-59 101 401 (OSAKA GAS K.K.) 12-06-1984

Designated contracting state (EPC)

AT BE CH DE DK ES FR GB LI SE

DOCDB simple family (publication)

EP 0465434 A1 19920108; EP 0465434 B1 19950920; AT E128061 T1 19951015; DE 69113144 D1 19951026; DE 69113144 T2 19960509; IT 1243219 B 19940524; IT 9017946 A0 19900626; IT 9017946 A1 19911226

DOCDB simple family (application)

EP 91830209 A 19910520; AT 91830209 T 19910520; DE 69113144 T 19910520; IT 1794690 A 19900626