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US 4,978,537 AGranted
Gradual release structures for chewing gum
AssigneeWm. Wrigley Jr. Company
InventorJoo H. Song
Life of this patent
Estimating the term…
Abstract
Gradual release structures for the release of active agents in chewing gum and a process for making such structures are provided. The gradual release structures are formed by meltspinning techniques and comprise an active agent and a wall material.
Claims27
A chewing gum which comprises:
- a gum base;
- a water soluble bulk portion;
- and,
- a gradual release structure formed by melt spinning a mixture of active agent and spinnable polymeric wall material, having more than zero but less than about 55 percent by weight active agent, into a fiber, and cutting the fiber.
1 more element
A process for making chewing gum which comprises the steps of:
- a. preparing a gum base;
- b. preparing a water soluable bulk portion;
- c. preparing a gradual release structure which comprises the steps of:
- i. preparing a mixture of active agent and wall material, having more than zero but less than about 55 percent by weight active agent;
- ii. melt spinning the mixture into a fiber;
- and
- iii. cutting the fiber;
- and,
- d. combining the gradual release structure, the gum base and the water soluble bulk portion.
6 more elements
A process for making a chewing gum having a gradual release structure which comprises the steps of:
- preparing a gum base;
- preparing a water soluble bulk portion;
- preparing a mixture of Aspartame and wall material, having from about 10 percent by weight to about 25 percent by weight Aspartame;
- melt spinning the mixture to form a fiber;
- stretching the fiber;
- cutting the fiber;
- and
- combining the gum base, water soluble bulk portion and gradual release structure.
5 more elements
Dependencies are inferred from the claim text.