1074. HOFFMAN, G. (K. Herberts & Co., formerly Otto L. Herberts). [Pencil Leads and Crayons.] German Patent 736,617, May 13, 1943 (Cl. 22 g-2.01). Chem. Abs., vol. 38, 1944, p. 3059.

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Patent Abstracts

1074. HOFFMAN, G. (K. Herberts & Co., formerly Otto L. Herberts). [Pencil Leads and Crayons.] German Patent 736,617, May 13, 1943 (Cl. 22 g-2.01). Chem. Abs., vol. 38, 1944, p. 3059.

In preparing pencil leads and crayons, the wax is replaced by Zn salts of oxidation products from CO hydrogenation products. Preferred are Zn salts of oxidation products with 8-14 C atoms.