Effervescent composition and method of making same

Patent 4678661 Issued on July 7, 1987. Estimated Expiration Date:

June 30, 2006. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

3495001

3556803

3594472

3773922

Pharmaceutical composition
Patent #: 4083951
Issued on: 04/11/1978
Inventor: Goudie, et al.

Rapid dissolving effervescent granules
Patent #: 4093710
Issued on: 06/06/1978
Inventor: Sass, et al.

Denture cleansing tablet and process for making
Patent #: 4256599
Issued on: 03/17/1981
Inventor: Krisp , et al.

Alkaline analgesic capsule
Patent #: 4294819
Issued on: 10/13/1981
Inventor: Tencza

Capsule product containing high dosage of aspirin in powder or granulated form and alkaline tablet or pellet comprising magnesium carbonate, calcium carbonate and a magnesium dry component
Patent #: 4339428
Issued on: 07/13/1982
Inventor: Tencza

Cleansing tablets for tooth prostheses
Patent #: 4417993
Issued on: 11/29/1983
Inventor: Gergely

More ...

Inventors

Application

No. 06/880081 filed on 06/30/1986

US Classes:

424/44, Gas produced in situ by chemical reaction424/466, Effervescent424/646, Iron, cobalt, nickel, vanadium, molybdenum, or palladium424/687, Calcium carbonate424/717, Bicarbonate514/474, Ascorbic acid or derivative (e.g., vitamin C, etc.)514/819ANTACID, ORAL

Examiners

Primary: Griffin, Ronald W.

Attorney, Agent or Firm

Hill, Van Santen, Steadman & Simpson

International Classes

A23L 2/40 (20060101)
A61K 33/10 (20060101)
A61K 33/06 (20060101)
A61K 9/46 (20060101)

Foreign Application Priority Data

1983-09-28 AT

Abstract

Effervescent granulates, particularly for the manufacture of effervescent tablets, comprising at least one solid, crystalline edible organic acid and at least one carbonate which releases carbon dioxide upon reaction with the organic acid, the acid crystals comprising a coating which contains calcium carbonate adhering to the surface of the acid crystals by means of a bonding layer formed by a reaction at the interface with the crystal of a calcium carbonate coating material. The coating is built up in multi-layers and includes at least two carbonate layers, the layer which is bonded essentially to the acid crystal being composed of calcium carbonate with the succeeding layers adhering to the carbonate layer by means of a bonding layer formed by reaction of the acid and the carbonate. The invention also deals with methods of manufacture as well as fields of use for the new effervescent granulates.