Lignosulfonate additive-containing carbon black compositions

Details Lignosulfonate additive-containing carbon black compositions Lignosulfonate additive-containing carbon black compositions

1988-10-24

1990-01-09

Morris, Theodore

Compositions: coating or plastic

Coating or plastic compositions

Cellulose liberation waste liquor, solid, or reaction...

530501, C08L 9702

Patent

active

048925870

ABSTRACT:
A carbon black composition comprising carbon black and a lignin dispersant prepared by the steps of methylolating a lignin compound by reaction of less than about 2 moles formaldehyde per 1,000 grams of the lignin, and sulfonating the methylolated lignin by reaction from about 2.5 to 3.5 moles of the sulfite or bisulfite compound per 1,000 grams of lignin at an initial reaction pH of below about 6.6 and at a temperature of at least about 170.degree. C., while allowing the pH of the reaction mixture to rise to a final pH of greater than 7.5 to sequentially sulfomethylate the aromatic nucleus and sulfonate the side chain of the lignin.

REFERENCES:
patent: 2525433 (1950-10-01), Voet
patent: 4590262 (1986-05-01), Dilling

Affiliated with

Also associated with

Rating

Lignosulfonate additive-containing carbon black compositions does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Lignosulfonate additive-containing carbon black compositions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lignosulfonate additive-containing carbon black compositions will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-143747