Modified pitch specially adapted to bind coal particles

Details Modified pitch specially adapted to bind coal particles Modified pitch specially adapted to bind coal particles

1988-10-12

1990-05-01

Lieberman, Paul

Compositions: coating or plastic

Coating or plastic compositions

Bituminous material or tarry residue

1062843, 1062844, 10628406, 208 44, 525545, 525360, C08L 9500

Patent

active

049215396

ABSTRACT:
The invention concerns a modified pitch composition specially adapted to bind coal particles with the purpose of transforming it into briquettes; the pitch is modified by reaction with an unsaturated dicarboxylic acid or anhydride thereof, and at least on crosslinking agents selected from hydroxide of a Group I metal, and certain polyamines, polyalcohols and alcoholamines.

REFERENCES:
patent: 4157002 (1979-04-01), Fang
patent: 4332704 (1982-06-01), Marzocchi
patent: 4337193 (1982-01-01), Saita
patent: 4623395 (1986-11-01), Goodrich
patent: 4629754 (1986-12-01), Syrier et al.

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