Composition for the preparation of pencil lead

Details Composition for the preparation of pencil lead Composition for the preparation of pencil lead

1990-11-21

1992-06-02

Dixon, Jr., William R.

Compositions: coating or plastic

Coating or plastic compositions

Corrosion inhibiting coating composition

501146, C09D 1300

Patent

active

051183455

ABSTRACT:
A method and composition are disclosed for the preparation of pencil lead from clay, graphite and optionally other material, wherein the clay or the clay/graphite mixture is digested with water, pressed, dried and fired, and at least one alkali phosphate, alkali borate and/or alkali carbonate is added before or as part of the digestion of the clay or the clay/graphite mixture.

REFERENCES:
patent: 203549 (1878-05-01), Lanstrom
patent: 1528908 (1925-03-01), Bleininger
patent: 3725100 (1973-04-01), Lentz
patent: 4209332 (1980-06-01), Tsujio

Affiliated with

Also associated with

Rating

Composition for the preparation of pencil lead does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Composition for the preparation of pencil lead, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Composition for the preparation of pencil lead will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2226025