Thermosetting adhesive resins

Details Thermosetting adhesive resins Thermosetting adhesive resins

1984-03-23

1985-06-18

Kight, John

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

524 47, 524 48, 524 56, 524 58, 156328, 1563309, C08L 302

Patent

active

045241643

ABSTRACT:
A thermosetting adhesive resin suitable for binding lignocellulosic materials to form products, such as plywood or particle board, is prepared by heating an aqueous sugar or starch solution in the presence of an inorganic acid or its ammonium salt and a metal ion catalyst to obtain a partially polymerized resin which is reacted with an organic acid anhydride just prior to application to the lignocellulosis materials. The adhesive formula contains no formaldehyde and the preferred aqueous solutions are whey or whey byproduct concentrates.

REFERENCES:
patent: 1593342 (1926-07-01), Meigs
patent: 1801052 (1931-04-01), Meigs
patent: 1801053 (1931-04-01), Meigs
patent: 2867590 (1959-01-01), Coutras et al.
patent: 2967859 (1961-01-01), Osipow et al.
patent: 3480573 (1969-11-01), Thompson, Jr. et al.
patent: 3865616 (1975-02-01), kerblom
patent: 4085076 (1978-04-01), Gibbons et al.
patent: 4172057 (1979-10-01), Henbest

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