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:
Feb. 03, 2009
Filed:
Jan. 03, 2007
Sodium hydrogencarbonate crystal particles having low caking property and process for producing them
Takako Hirano, Legal Representative, Chiba, JP;
Shintaro Kikuchi, Kashima-gun, JP;
Fumiaki Nakashima, Kashima-gun, JP;
Hisakazu Arima, Kashima-gun, JP;
Shigeru Sakurai, Chiyoda-ku, JP;
Takako Hirano, legal representative, Chiba, JP;
Shintaro Kikuchi, Kashima-gun, JP;
Fumiaki Nakashima, Kashima-gun, JP;
Hisakazu Arima, Kashima-gun, JP;
Shigeru Sakurai, Chiyoda-ku, JP;
Asahi Glass Company, Limited, Tokyo, JP;
Abstract
Sodium hydrogencarbonate crystal particles, which comprise sodium hydrogencarbonate crystal particles having an average particle size of from 50 to 500 μm based on the mass, and anhydrous sodium carbonate, and sodium carbonate monohydrate and/or Wegscheider's salt, present on the surface of the sodium hydrogencarbonate crystal particles in such amounts that the total content of anhydrous sodium carbonate, sodium carbonate monohydrate, Wegscheider's salt and sodium sesquicarbonate in the sodium hydrogencarbonate crystal particles is from 0.04 to 1 mass % as calculated as anhydrous sodium carbonate, anhydrous sodium carbonate accounts for at least 40 mass % of the total content, and sodium carbonate monohydrate and/or Wegscheider's salt accounts for from 5 to 60 mass % of the total content. Sodium hydrogencarbonate crystal particles having a low caking property, which are useful in the field of food products, pharmaceuticals, bath additives, etc., which require no necessity to contain an anticaking agent, a process for producing them and a method for packaging them, can be provided.