The Year-Book for Colorists and Dyers Volume 4

The Year-Book for Colorists and Dyers Volume 4

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1902 edition. Excerpt: ... upon which the solution is distributed in a thin film. PROCESS OF MAKING ACETIC ANHYDRIDE. Bernhard Heymann, of Elberfeld, Germany, assignor to Farbenfabriken of Elberfeld Company of New York, N. Y. No. 683,464, dated October 1, 1901. This invention relates to a new and useful process for the production of acetic anhydrid. This process consists in treating salts of this acid, especially the alkaline salts, with a mixture of chlorin and sulfurous anhydrid, (SO2, ) by means of which operation the said salts are transformed into acetic anhydrid in a very profitable manner. WATERPROOF COATING. William A. Hall, of Bellows Falls, Vermont, assignor to the Casein Company of America. No. 684,509, dated October 15, 1901. This invention or discovery has for its object to produce a waterproof porous coating especially adapted for use in enameling playing-cards and other similar paper articles to which it is desired to impart glossy water-repellent surfaces which are still sufficiently porous to take printing-ink. This improved sizing of waterproofing composition consists of a base preferably of satin-white (precipitated sulfate of calcium) and casein dissolved in a suitable alkali (preferably carbonate of soda ammonia) and water. Instead of using satin-white alone as a base a mixture of satin-white and clay or blanc fixe may be employed. The preferable proportions of these ingredients, by weight, in a dry state are about eighty parts of the base, twelve to sixteen parts casein, and two to four parts alkali, although these proportions are capable of some slight variations. Some twenty-five parts or rather more of water will be added in mixing the ingredients for use. PROCESS OF PURIFYING ANTHRACENE. Ernst Wirth, of Dortmund, Germany. No. 685,895, more

Product details

  • Paperback | 84 pages
  • 189 x 246 x 4mm | 168g
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 1236628284
  • 9781236628282