Wax-free chewing gum with initial soft bite

Details Wax-free chewing gum with initial soft bite Wax-free chewing gum with initial soft bite

1994-08-30

1995-08-01

Hunter, Jeanette

Food or edible material: processes, compositions, and products

Normally noningestible chewable material or process of...

426 4, A23G 330

Patent

active

054378770

DESCRIPTION:

BRIEF SUMMARY
RELATED APPLICATIONS

This application is a continuation-in-part of International Application No. PCT/US92/11317, filed on Dec. 30, 1992, which in turn is a continuation-in-part of International Application No. PCT/US92/09615, filed on Nov. 6, 1992, which in turn is a continuation-in-part of PCT/US92/01686, filed on Mar. 3, 1992.


FIELD OF THE INVENTION

The present invention relates to an improved chewing gum of the type which does not contain wax, and to certain wax-free chewing gum products having an initial soft bite as measured by a Taber Stiffness Test (Taber Units) and by Instron yield data. The gum also has excellent tempering times, a good surface toughness and can be produced more quickly than comparable wax containing gums.


BACKGROUND OF THE INVENTION

U.S. Pat. No. 3,984,574, issued to Comollo, discloses an adhesive chewing gum base in which the non-tack properties were achieved by eliminating conventional chewing gum base ingredients which were found to contribute to chewing gum tackiness, and by substituting non-tacky ingredients in place of the conventional ingredients. Specifically, it was discovered that three classes of materials account for conventional chewing gum tackiness. These materials are elastomers, resins, and waxes.
Comollo eliminated natural and some synthetic elastomers from chewing gum base, and substituted in their place one or more non-tacky synthetic elastomers such as polyisobutylene, polyisoprene, isobutyleneisoprene copolymer and butadiene-styrene copolymer. Comollo also eliminated the tack-producing natural resins and modified natural resins and used instead relatively high amounts of hydrogenated or partially hydrogenated vegetable oils or animal fats. Finally, Comollo completely excluded waxes from the gum base, but included polyvinylacetate, fatty acids, and mono and diglycerides of fatty acids. Comollo provided no information relating to the relationship of initial soft bite and toughness.


SUMMARY OF THE INVENTION

The present invention is directed to improvements in a wax-free chewing gum base (i.e. a chewing gum base which is free of hydrocarbon-containing waxes) and improved wax-free chewing gums prepared therefrom. The wax-free gum base of the invention includes quantities and mixtures of selected synthetic elastomers, selected and preferred elastomer plasticizers, filler, and selected and preferred softeners. However, unlike Comollo, the gum base of the invention is not limited to use in a non-tack chewing gum and may, therefore, contain optional quantities of natural elastomer and/or natural resins. The gum base of the invention may also contain optional quantities of minor ingredients such as color and antioxidant. The gum base of the invention most preferably contains a preferred blend of at least two synthetic elastomers, including certain vinyl polymers, particularly polyvinylacetate.
The optional use of natural elastomers in the gum base compliments certain chewing gum flavors, such as mint oil, by rounding out the otherwise harsh or grassy notes in the flavor. The presence of natural elastomers and natural resins in the gum base also contributes to improved chewing gum texture and flavor retention.
There is currently a need or desire in the chewing gum industry for gum bases which are devoid or substantially free of hydrocarbon-containing waxes and which contain desired quantities of both synthetic and natural elastomers, natural resins, or both.
With the foregoing in mind, it is a feature and advantage of the invention to provide a substantially wax-free chewing gum base.
It is also a feature and advantage of the invention to provide a suitably soft gum base in which wax is not needed to soften the gum base.
It is also a feature and advantage of the invention to provide a suitably soft wax-free gum base which gum base comprises multiple blended synthetic elastomers, selected elastomer plasticizers and selected softeners, and which gum base may be blended with selected sweeteners, bulking agents and binders, as well as certain water soluble or wat

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