Oxidation resistant articles

• US 2,906,632 A
• Filed: 09/10/1957
• Issued: 09/29/1959
• Est. Priority Date: 09/10/1957
• Status: Expired due to Term

• Current Assignee: John D. Nickerson
• Original Assignee: John D. Nickerson
• Inventors: Nickerson, John D.
• Application Number:
  US03/683,111
• Time in Patent Office: 749 Days
• US Class Current: 501/99
• CPC Class Codes: B01J 19/02 Apparatus characterised by being constructed of material selected for its chemically-resistant properties
• CPC Class Codes: B01J 2219/0272 Graphite
• CPC Class Codes: C04B 33/13 Compounding ingredients C04B33/36, C04B35/71 take precedence ; pigments for ceramics C09C1/0009
• CPC Class Codes: C04B 33/1315 Non-ceramic binders
• CPC Class Codes: C04B 35/52 based on carbon, e.g. graphite
• CPC Class Codes: C04B 35/522 Graphite C04B35/536 takes precedence
• CPC Class Codes: C04B 41/009 characterised by the material treated
• CPC Class Codes: C04B 41/4535 applied as a solution, emulsion, dispersion or suspension
• CPC Class Codes: C04B 41/455 the coating or impregnating process including a chemical conversion or reaction
• CPC Class Codes: C04B 41/5006 Boron compounds
• CPC Class Codes: C04B 41/5092 Phosphate cements
• CPC Class Codes: C04B 41/85 with inorganic materials

Claims

3. AN OXIDATION-RESISTANT ARTICLE CONSISTING OF A CARBONACEOUS MATRIX SELECTED FROM THE GROUP CONSISTING OF GRAPHITE AND CARBON, AND HAVING THEREIN FROM ABOUT 4 PERCENT TO ABOUT 20 PERCENT BY WEIGHT OF A COMPOSITION CONSISTING ESSENTIALLY OF PHOSPHORUS-CONTAINING AGENT SELECTED FROM THE GROUP CONSISTING OF THE OXY ACIDS OF PHOSPHORUS AND THE AMMONIUM SALTS OF PHOSPHORUS, TOGETHER WITH A ZINC HALIDE AND A BORIC ACID, THE WEIGHT RATIOOS OF SAID MATERIALS RANGEING BETWEEN 2:

1;

0 AND 2;

2;

0;

25.