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US 11,072,731 B2Granted
Protein-containing adhesives, and manufacture and use thereof
AssigneeEvertree
InventorsAnthony A. Parker, Joseph J. Marcinko
Life of this patent
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Abstract
The invention provides protein adhesives and methods of making and using such adhesives. One type of protein adhesive described herein contains lignin and ground plant meal or an isolated polypeptide composition obtained from plant biomass. Other types of protein adhesives described herein contain a plant protein composition and either a hydroxyaromatic/aldehyde, urea/aldehyde, or amine/aldehyde component.
Claims15
An adhesive composition in the form of a liquid comprising:
- (a) lignin in an amount of from about 5% w/w to about 35% w/w of the adhesive composition, wherein the lignin has a weight average molecular weight of about 10,000 g/mol to about 70,000 g/mol;
- (b) a plant protein composition that is a ground plant meal, wherein the ground plant meal is derived from corn, wheat, sunflower, cotton, rapeseed, canola, castor, soy, camelina, flax, jatropha, mallow, peanuts, sugarcane bagasse, tobacco, or a combination thereof, and the plant protein composition is present in an amount of from about 15 w/w to about 35 w/w of the adhesive composition;
- (c) water in an amount of from about 30% w/w to about 65% w/w of the adhesive composition;
- and
- (d) an epoxide compound.
2 more elements
Dependencies are inferred from the claim text.