Method for the manufacture of products containing wood chips by

Details Method for the manufacture of products containing wood chips by Method for the manufacture of products containing wood chips by

1988-01-22

1990-01-09

Alvo, Steve

Paper making and fiber liberation

Processes of chemical liberation, recovery or purification...

Including recovery of organic by-product

156 624, 156326, B27N 304, B27N 102, D21J 104

Patent

active

048926183

ABSTRACT:
A method for the manufacture of products containing compressed and adhesive-bonded wood chippings, preferably of different sizes. Before the chippings are combined together by glueing to form a product of high dimensional stability, they are impregnated with lignin in conjunction with water and at a pH which essentially does not exceed 12.5. Once the lignin has been absorbed by the wood chippings it is fixed against leaching by the water by the modification of same into an essentially water-insoluble form by impregnating the chips with a weakly acid aqueous solution of a metal salt.

REFERENCES:
patent: 3895996 (1975-07-01), Lange et al.
patent: 3918981 (1975-11-01), Long
patent: 3937647 (1976-02-01), Backstrom et al.
patent: 4116761 (1978-09-01), Head
patent: 4265846 (1981-05-01), Shen
patent: 4359507 (1982-11-01), Gaul et al.
patent: 4486557 (1984-12-01), Gaul et al.

Affiliated with

Also associated with

Rating

Method for the manufacture of products containing wood chips by does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for the manufacture of products containing wood chips by , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for the manufacture of products containing wood chips by will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-143965