Formaldehyde-free phenolic resins, downstream products, their synthesis and use
AssigneeThe University of Western Ontario
InventorsChunbao XU, Yongsheng ZHANG, Zhongshun YUAN
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Abstract
A resin composition containing the reaction product of a 5-hydroxymethyl furfural (HMF) produced in-situ from e.g., glucose and a phenolic compound. Phenolic compounds include phenol, cardanol and bio-phenol. The resin is heat-curable using cross-linking agents such as tetraethylammonium chloride or lignin, etc.
Claims25
A method for preparing a cross-linkable resin, the method comprising the step of:
- (i) converting a hexose to 5-hydroxymethyl furfural (HMF) in the presence of a phenolic compound and a catalyst that promotes formation of covalent bonds between a carbon atom of the aromatic ring of the phenolic compound and the carbon of the formyl group of the HMF to form the resin.
13-15. (canceled)
19-22. (canceled)
(canceled)
(canceled)
A method for producing a reaction product comprising a plurality of furyl and phenyl rings, neighboring furyl and phenyl rings being covalently linked to each other by a —CH2— or a —CHOH— group, the method comprising:
- (a) converting a hexose to 5-hydroxymethyl furfural (HMF) in the presence of phenol and a catalyst that promotes formation of said —CH2— and said —CHOH— groups between the phenol and the HMF.
30-60. (canceled)
Dependencies are inferred from the claim text.