Delivery system for active ingredients and preparation thereof

Patent 4695463 Issued on September 22, 1987. Estimated Expiration Date:

May 24, 2005. 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

3201353

3632739

3764707

3857964

3930026

Chewing gum having surface impregnated, microencapsulated flavor particles
Patent #: 3962463
Issued on: 06/08/1976
Inventor: Witzel

Condiment encapsulation by spray drying
Patent #: 3985913
Issued on: 10/12/1976
Inventor: Johnson , et al.

Long-lasting flavored chewing gum including chalk-containing gum base
Patent #: 4065579
Issued on: 12/27/1977
Inventor: Mackay, et al.

Chewing cum capable of releasing finely divided water-insoluble materials therefrom
Patent #: 4238475
Issued on: 12/09/1980
Inventor: Witzel , et al.

Chewing gum containing flavor composition and flavor composition therefor
Patent #: 4259355
Issued on: 03/31/1981
Inventor: Marmo , et al.

More ...

Inventors

Application

No. 06/738148 filed on 05/24/1985

US Classes:

424/440, Candy, candy coated or chewing gum424/48, CHEWING GUM TYPE424/488, Polysaccharides (e.g., cellulose, etc.)426/3, NORMALLY NONINGESTIBLE CHEWABLE MATERIAL OR PROCESS OF PREPARATION427/2.14, Particulate or unit-dosage-article base (e.g., tablet, pill, pellet, capsule, liposome, powder, controlled-release implant, suppository; excluding transdermal patch)514/779, Algin or derivative514/783, Plant extract or plant material of undetermined constitution514/965, Discrete particles in supporting matrix523/120Denture plate repair, adhesive, cushion or modification composition, e.g., modification of denture base to improve fit, etc.

Examiners

Primary: Griffin, Ronald W.

Attorney, Agent or Firm

International Classes

A23G 4/00 (20060101)
A61K 9/20 (20060101)

Abstract

A delivery system useful in chewing gum, confectionary and pharmaceutical products comprising:(a) an insolubolized active ingredient; and(b) a cross-linked hydrocolloid multivalent cation alginate or carageenenate matrix entrapping said insolubolized active ingredient.A process of preparation is also disclosed.