Furfuryl alcohol and lignin adhesive composition
AssigneeUniversity of New Brunswick
InventorsMarc H. Schneider, Jonathan G. Phillips
Life of this patent
Estimating the term…
Abstract
A wood adhesive formulation containing furfuryl alcohol, lignin, maleic anhydride, and iron and zinc catalysts.
Claims35
A two-part composition which can be mixed and used as a wood adhesive comprising:
- (a) a reactive component comprising furfuryl alcohol monomer and a by-product obtained from a chemical pulping process;
- and
- (b) a catalyst component comprising zinc chloride, iron (III) chloride hexahydrate and maleic anhydride.
A process for bonding wooden substrates comprising the steps of:
- (a) obtaining two or more wooden substrates;
- (b) coating at least one of the wooden substrates with a two-part adhesive formulation comprising:
- 1. a reactive component comprising furfuryl alcohol monomer and a by-product obtained from a chemical pulping process;
- and
- 2. a catalyst component comprising zinc chloride, iron (III) chloride hexahydrate and maleic anhydride;
- (c) contacting the at least one coated substrate with a second wooden substrate to obtain a bondable wooden structure;
- and
- (d) heating the bondable wooden structure, optionally under pressure, to obtain a bonded wooden structure.
In the process of preparing composite articles wherein a binder is employed, the improvement consisting of employing as the binder a composition comprising furfuryl alcohol monomer, a by-product obtained from a chemical pulping process, zinc chloride, iron (III) chloride hexahydrate and maleic anhydride.
In the process of preparing glass fiber reinforced articles wherein a binder is employed, the improvement consisting of employing as the binder a composition comprising furfuryl alcohol monomer, a by-product obtained from a chemical pulping process, zinc chloride, iron (III) chloride hexahydrate and maleic anhydride.
Dependencies are inferred from the claim text.