The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 12, 1982
Filed:
Nov. 26, 1980
Jacques Baudouin, Viviers, FR;
Jean-Pierre Caspar, Viviers, FR;
Jacques Gaillard, Villeneuve de Berg, FR;
Lafarge, Paris, FR;
Abstract
A method of producing mineral fillers containing hydrated calcium monocarboaluminate. Al(OH).sub.3, CaCO.sub.3 and Ca(OH).sub.2 are reacted together in the presence of water, the operating temperature range being of 50.degree. C.-100.degree. C. Although these materials are insoluble, a quick reaction occurs as well in a highly concentrated solid medium as in a diluted medium. According to a preferred embodiment, the amount of water is such to obtain a final dry matter content of 50%, and the substantially solid resulting paste is directly brought to the fluidity required for use by means of a defloculating agent. Application to paper coating.