METHOD OF REDUCING EMISSION OF ALDEHYDES AND VOLATILE ORGANIC COMPOUNDS FROM WOOD MATERIALS Russian patent published in 2012 - IPC C08L97/02 B27N3/00 B27N3/02 B27N3/04 

Abstract RU 2470050 C2

FIELD: chemistry.

SUBSTANCE: invention relates to a method of producing wood materials from lignocellulose-based grinding products, with low emission of volatile organic compounds and aldehydes. The lignocellulose-based grinding products and an adhesive based on amino plastic, diisocyanates, polyurethanes and/or tannin-formaldehydes or mixtures thereof are prepared. The lignocellulose-based grinding products are mixed with the adhesive and the mixture is pressed during heat treatment. Before pressing and after splitting into fibres or processing into chips, a combination is added to the grinding products, said combination comprising at least one component having buffer capacity, selected from a hydrosulphite salt or sulphite salt. At least one component is optionally added, said component being selected from urea, a urea derivative or hydroxides of alkali, alkali-earth metals or ammonia.

EFFECT: wood material obtained using the method have low emission of volatile organic compounds and aldehydes, particularly formaldehyde, during synthesis thereof and during prolonged use thereof.

5 tbl, 3 ex

Similar patents RU2470050C2

Title Year Author Number
METHOD OF REDUCING EMISSIONS OF VOLATILE ORGANIC COMPOUNDS FROM WOOD MATERIALS AND WOOD MATERIALS 2016
  • Tilekke Gunnar
  • Myuller Dirk
  • Tilekke Gunnar
RU2719197C1
POROUS CARRIER SYSTEM FOR REDUCING THE RELEASE OF FORMALDEHYDE IN WOOD-BASED MATERIALS 2018
  • Kaisergruber, Theresa
  • Mitter, Roland
RU2743171C1
USE OF MODIFIED NANOPARTICLES IN WOOD MATERIALS FOR REDUCING EMISSION OF VOLATILE ORGANIC COMPOUNDS (VOCS) 2012
  • Giir Andreas
  • Borovka Yuliya
  • Khash Joakhim
RU2600050C2
MODIFIED AMINOPLASTIC SOLUTIONS 2006
  • Vonner Jokhann
  • Shol'Ts Vol'Fgang
  • Vallenvajn Zigfrid
  • Sholl' Frank
  • Rottlender Kristian
RU2413747C2
METHOD FOR PRODUCTION OF OSB BOARDS BASED ON WOOD WITH REDUCED RELEASE OF VOLATILE ORGANIC COMPOUNDS (VOC) 2018
  • Kalwa, Norbert
RU2728871C1
BINDER FOR PULP-CONTAINING MATERIALS 2018
  • Edelmann, Khans-Joakim
RU2803520C2
MODIFIED POLYPHENOL BINDER COMPOSITIONS AND METHODS FOR MAKING AND USING SAME 2013
  • Khagiopol Kornel
  • Etkinson Derek L.
RU2650129C2
METHOD FOR REDUCING EMISSION OF VOLATILE ORGANIC COMPOUNDS FROM WOOD MATERIALS AND WOOD MATERIALS 2013
  • Khash Joakhim
  • Borovka Yuliya
RU2661361C2
METHOD OF PREPARING SODIUM PYROSULFITE 1999
  • Gofman M.S.
  • Malkiman V.I.
  • Bljakher I.G.
  • Gajsin L.G.
  • Karimov Ja.M.
  • Mukhamadeeva L.P.
RU2159737C1
METHOD TO PRODUCE ARTICLES FROM WOOD THAT FEATURES LOW DEGREE OF CHEMICALS EVAPORATION 2005
  • Sejfert Vol'Fgang
  • Prantts Ehrkhard
RU2366571C1

RU 2 470 050 C2

Authors

Grunval'D Dirk

Khash Joakhim

Dates

2012-12-20Published

2008-08-08Filed