Process for in situ formation of a tree-derived resinous adhesiv

Details Process for in situ formation of a tree-derived resinous adhesiv Process for in situ formation of a tree-derived resinous adhesiv

1977-04-27

1978-09-12

Woodberry, Edward M.

Stock material or miscellaneous articles

Composite

Of aldehyde or ketone condensation product

260 172, 428528, 428531, B32B 2108, B32B 2742, C08L 102

Patent

active

041139194

ABSTRACT:
Bark-extended tannin-aldehyde resinous adhesives are formed in situ as adhesives for wood products, such as plywood. Bark, in a finely divided particle form, is treated with alkali and then used as an extender by admixing the bark particles with tannin and an aldehyde co-reactant therefor. The admixture is combined as a bonding agent for the wood members to be adhered, and is formed in situ into an adhesive by subjecting the wood members to temperature and pressure conditions effective to form a bark-tannin-aldehyde resin.

REFERENCES:
patent: 2926146 (1960-02-01), McCully
patent: 2930772 (1960-03-01), Williams et al.
patent: 3025250 (1962-03-01), Herrick et al.
Pulp and Paper Magazine of Canada, "Bark Extracts -- in Adhesives"-- MacLean et al., Aug. 1952, pp. 111-114.
Chem. Absts. 55: 10885i, Herzberg, "Pinus Radiata Tannin-Formaldehyde Resin as an Adhesive for Plywood".
Chem. Absts. 66: 96389v -- Plomley -- "Tannin-Formaldehyde Adhesives".
Phenolic Resins, Whitehouse et al., 1967 -- p. 75.

Affiliated with

Also associated with

Rating

Process for in situ formation of a tree-derived resinous adhesiv does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for in situ formation of a tree-derived resinous adhesiv, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for in situ formation of a tree-derived resinous adhesiv will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2384864