Patent US4415593A successfully refreshed from Google Patents.
US4415593A
Expired / Lapsed
US
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Chewing gum base
Assignee: Warner Lambert Co LLC
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Filing: 1982-04-28
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Granted: 1983-11-15
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Expires: 2002-04-28
Abstract
Abstract The present invention relates to chewing gum compositions whose elastomeric component in the chewing gum base employed in formulating said chewing gum compositions comprises as an essential ingredient a polyisoprene obtained from naturally-occurring guayule rubber. (Parthenium Argnetatum)
Inventors
- 👤 Michael Glass
- 👤 Edwin R. Koch
- 👤 Vincent Corsello
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:09
CPC Classifications
A; A23; A23G; A23G4/00; A23G4/06; A23G4/08
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
49 words
A chewing gum base for use in producing chewing gum having improved non-stick chewing qualities comprising a natural polyisoprene rubber, inorganic fillers, plasticizers, non-toxic vinyl polymer, emulsifying agents and solvents for the rubber components wherein the improvement comprises the use of a polyisoprene rubber obtained from the guayule shrub.
Claim 2
Dependent Claim
49 words
A chewing gum base for use in producing chewing gum having improved non-stick chewing qualities comprising a natural polyisoprene rubber, inorganic fillers, plasticizers, non-toxic vinyl polymer, emulsifying agents and solvents for the rubber components wherein the improvement comprises the use of a polyisoprene rubber obtained from the guayule shrub.
Claim 3
Dependent Claim
29 words
The chewing gum base of claim 1 wherein the natural polyisoprene rubber is present in the amount of about 8% to about 30% by weight of the gum base.
Claim 4
Dependent Claim
55 words
The chewing gum base of claim 2 wherein the following ingredients are expressed in % by weight of the gum base: plasticizer: about 9% to about 40% inorganic filler: about 10% to about 15% vinyl polymer: about 16% to about 32% emulsifying agent: about 0.5% to about 10% rubber solvent: about 2.5% to about 13%
Claim 5
Dependent Claim
14 words
The chewing gum base of claim 3 wherein the plasticizer is hydrogenated vegetable oil.
Claim 6
Dependent Claim
13 words
The chewing gum base of claim 3 wherein the plasticizer is polyvinyl acetate.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-11-14 | 1987-05-16 | 1987-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-11-14 | 1991-05-16 | 1991-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-11-14 | 1995-05-16 | 1995-11-15 | $7700.00 | Window Closed / Lapsed |