Protein-containing adhesives, and manufacture and use thereof
OwnerAnthony A. Parker, Joseph J. Marcinkoinventors
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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.
Claims62
An adhesive composition comprising:
- (a) lignin;
- and
- (b) a plant protein composition.
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A hydroxyaromatic-aldehyde adhesive composition comprising:
- (a) a hydroxyaromatic compound;
- (b) an aldehyde source;
- and
- (c) a plant protein composition selected from the group consisting of ground plant meal and isolated polypeptide composition.
A urea compound-aldehyde adhesive composition comprising:
- (a) a urea compound;
- (b) an aldehyde source;
- and
- (c) a plant protein composition selected from the group consisting of ground plant meal and isolated polypeptide composition.
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An amine compound-aldehyde adhesive composition comprising:
- (a) an amine compound selected from the group consisting of a primary amine compound and a secondary amine compound;
- (b) an aldehyde source;
- and
- (c) a plant protein composition selected from the group consisting of ground plant meal and isolated polypeptide composition.
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A phenol-formaldehyde-plant protein adhesive composition comprising:
- (a) phenol;
- (b) formaldehyde;
- (c) a plant protein composition selected from the group consisting of ground plant meal and isolated polypeptide composition;
- and
- (d) a reactive prepolymer;
- wherein the ratio of (i) weight percent of reactive prepolymer in the adhesive composition to (ii) the sum of the weight percent of phenol and formaldehyde in the adhesive composition is greater than 1:1.
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A phenol-formaldehyde-plant protein adhesive composition comprising:
- (a) phenol and formaldehyde that together constitute from about 0.5% w/w to about 10% w/w of the adhesive composition;
- (b) ground plant meal in an amount ranging from about 10% w/w to about 30% w/w of the adhesive composition;
- (c) polymeric diphenylmethane diisocyanate in an amount ranging from about 10% w/w to about 30% w/w of the adhesive composition;
- and
- (d) water in an amount ranging from about 45% w/w to about 75% w/w of the adhesive composition.
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Dependencies are inferred from the claim text.