PROCESS FOR PREPARING A BONDING RESIN

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United States of America Patent

APP PUB NO 20210253922A1
SERIAL NO

17059590

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The present invention relates to a process for preparing a bonding resin, wherein lignin is provided in the form of an aqueous solution and mixed with one or more of glycerol diglycidyl ether, polyglycerol diglycidyl ether, polyglycerol polyglycidyl ether, glycerol triglycidyl ether, sorbitol polyglycidyl ether, alkoxylated glycerol polyglycidyl ether, trimethylolpropane triglycidyl ether, trimethylolpropane diglycidyl ether, polyoxypropylene glycol diglycidylether, polyoxypropylene glycol triglycidyl ether, diglycidylether of cyclohexane dimethanol, resorcinol diglycidyl ether, isosorbide diglycidyl ether, pentaerythritol tetraglycidyl ether, ethylene glycol diglycidyl ether, polyethylene glycol diglycidyl ether having 2-9 ethylene glycol units, propylene glycol diglycidyl ether having 1-5 propylene glycol units, and/or diglycidyl ether of terminal diol having a linear carbon chain of 3-6 carbon atoms; and optionally one or more additives. The bonding resin is useful for example in the manufacture of laminates, mineral wool insulation and wood products such as plywood, oriented strandboard (OSB), laminated veneer lumber (LVL), medium density fiberboards (MDF), high density fiberboards (HDF), parquet flooring, curved plywood, veneered particleboards, veneered MDF or particle boards.

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Patent Owner(s)

Patent OwnerAddress
STORA ENSO OYJHELSINKI

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hjelm, Lars Hägersten, SE 1 2
Jansson, Li Älta, SE 2 2
Nasli, Bakir Ben Saltsjö-Boo, SE 10 16
Pham, Huynh Tram Anh Älvsjö, SE 4 2
Torssell, Staffan Bromma, SE 19 169
Zafar, Ashar Älta, SE 20 31

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