Lignosulfonate-phenol-formaldehyde resin binder

Details Lignosulfonate-phenol-formaldehyde resin binder Lignosulfonate-phenol-formaldehyde resin binder

1985-11-26

1987-04-28

Nielsen, Earl

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

Synthetic resins

Processes of preparing a desired or intentional composition...

1061631, 524595, 524702, 524841, 527403, C08L 9700, C08L 9702, C08L 6114, C08H 502

Patent

active

RE0324086

ABSTRACT:
A method of manufacturing a lignosulfonate-phenol-formaldehyde resin includes heating a mixture of phenol, formaldehyde, lignosulfonate and alkali at a temperature of 60.degree. C. to 100.degree. C. and a pH of 8-13. The lignosulfonate comprises about 5 to about 80 percent of the total weight of phenol, formaldehyde and lignosulfonate and the lignosulfonate is mixed with said phenol and formaldehyde before substantial reaction between said phenol and said formaldehyde. Also disclosed are fibrous articles manufactured using this resin as a binder.

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