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US 12,729,268 B2Granted
Formaldehyde-free binders and methods for producing the same
AssigneeCollix S.R.L.
InventorsGiovanni Venturini Del Greco, Arjen Harm Van Veen, Andrea Comparini, Jacopo Rosselli Del Turco
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Abstract
The present invention concerns the field of binders suitable for wood panel manufacturing. In particular, the invention regards methods for producing bio-based formaldehyde-free binders. In a further aspect the present invention describes bio-based formaldehyde-free binders obtainable from the described methods and their uses. The invention further describes methods for gluing articles and formaldehyde-free products obtainable from the methods of the present invention.
Claims16
A method for producing a formaldehyde-free binder comprising the following steps:
- a. preparing a slurry through the substeps consisting of:
- a1. comminuting an untreated biological material to obtain a paste of comminuted untreated biological material;
- a2. adding a medium to the paste of step a1. to form a slurry;
- wherein
- when the biological material of step a. comprises at least 20% lipids on dry weight, said medium of step a2. is water, said water being added in a ratio ranging from 1:10 to 10:1;
- and
- when the biological material of step a. comprises less than 20% lipids and at least 5% protein on dry weight, said medium of step a2. is an oil;
- b. providing the slurry of step a. and a reactive formaldehyde-free prepolymer, for obtaining the formaldehyde-free binder.
5 more elements
Dependencies are inferred from the claim text.