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1. (WO1993017578) GOMME A MACHER EXEMPTE DE CIRE, TENDRE DES LE DEPART
Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

WE CLAIM:

1. A substantially wax- free chewing gum having an initial soft bite comprising a gum base comprising:
about 20 to about 60 weight percent of a blend of at least two synthetic elastomers;
0 to about 30 weight percent of at least one natural elastomer;
about 5 to about 55 weight percent of at least one elastomer plasticizer;
about 4 to about 40 weight percent filler; and
about 5 to about 40 weight percent of at least one softener, said chewing gum also having a Taber Stiffness at lease 5 percent less than the Taber Stiffness of a comparable wax containing gum.

2. The chewing gum of claim 1, wherein the natural elastomer is selected from the group consisting of jelutong, lechi caspi, perillo, sorva, massaranduba balata, massaranduba chocolate, nispero, rosin dinha, chicle, gutta hang kang, smoked or liquid latex, guayule, chiquibul, crown gum, pendare, venezuelau chicle, leche de vaca, niger gutta, tunu, chilte, and combinations thereof.

3. The chewing gum of claim 1, wherein the synthetic elastomers are selected from at least two of the group consisting of polyisobutylene, polyisoprene, isobutylene-isoprene copolymer, butadiene-styrene copolymer, polyvinylacetate, vinyl acetate-vinyl laurate copolymer.

4. The chewing gum of claim 3, wherein the synthetic elastomers are selected from at least two elastomers from the group styrene-butadiene copolymer, polyisobutylene elastomer, isobutylene-isoprene
copolymer, and polyvinylacetate.

5. The chewing gum of claim 1, wherein the elastomer plasticizer is selected from the group consisting of glycerol esters of rosin, glycerol esters of partially hydrogenated rosin, glycerol esters of polymerized rosin, glycerol esters of partially dimerized rosin, partially hydrogenated methyl esters of rosin, glycerol esters of tall oil rosin, pentaerythritol esters of rosin, methyl esters of rosin, pentaerythritol esters of partially hydrogenated rosin, synthetic terpene resin, natural terpene resin, and combinations thereof.

6. The chewing gum of claim 1, wherein the filler is selected from the group consisting of calcium carbonate, magnesium carbonate, talc, ground limestone, magnesium silicate, aluminum silicate, clay, alumina, titanium dioxide, mono-, di- and tri-calcium
phosphates, cellulose, and combinations thereof.

7. The chewing gum of claim 1, wherein the softener is selected from the group consisting of tallow, hydrogenated tallow, hydrogenated vegetable oils, partially hydrogenated vegetable oils, cocoa butter, glyercol monostearate, mono-, di- and
triglycerides, acetylated monoglycerides, glycerol diacetate, glycerol triacetate, lecithin, fatty acids, lanolin, and combinations thereof.

8. The chewing gum of claim 1, comprising:
about 25 to about 45 weight percent of a blend of at least two synthetic elastomers;
about 10 to about 40 weight percent elastomer plasticizer;

about 5 to about 30 weight percent filler; and
about 15 to about 35 weight percent softener.

9. The chewing gum of claim 1, comprising:
about 12 to about 30 weight percent natural elastomer;
about 20 to about 40 weight percent of a blend of at least two synthetic elastomers;
about 5 to about 25 weight percent elastomer plasticizer;
about 4 to about 25 weight percent filler; and
about 15 to about 30 weight percent softener.

10. The chewing gum of claim 1, comprising:
about 30 to about 60 weight percent of a blend of at least two synthetic elastomers;
about 5 to about 55 weight percent elastomer plasticizer;
about 10 to about 35 weight percent filler; and
about 5 to about 25 weight percent softener.

11. The chewing gum of claim 1, prepared by:
adding a first portion of at least one of the synthetic elastomers and a first portion of filler to a mixer;
adding softener to the mixer along with a second portion of the remaining synthetic elastomer and a first portion of at least one other synthetic
elastomer and a second portion of filler;
adding elastomer plasticizer to the mixer along with a third portion of the remaining synthetic elastomer and a third portion of filler;

blending the ingredients together; and
removing heat at about 30 minutes to about 90 minutes into the mixing time of the base production process, and then
completing mixing and sequentially adding, in any order, water soluble sweeteners, bulking agents, binders and water soluble/dispersible softeners, and flavoring agents, and mixing to form a chewing gum mixture, and then

- forming the mixture into a gum loaf,
- tempering the loaf at from 35-45°C and 65-75 percent relative humidity for from 10 to 30 minutes to form a tempered loaf,
extruding the tempered loaf in an extruder having an exit temperature of from about
55-65°C to form a continuous gum ribbon, and
- processing said ribbon by reducing its thickness, scoring and cutting to form gum sheets, and - tempering said sheets for from 6-24 hours, and then breaking said sheets into gum pieces and wrapping the pieces.

12. The chewing gum of claim 1 having a Taber Stiffness of from about 15 to 55 Taber Units and an Instron yield of from about 0.02 to 0.08 pound-inches.

13. A wax-free chewing gum having reduced tack and soft initial bite properties, comprising:
a water soluble bulk portion;
one or more flavoring agents; and
a water insoluble chewing gum base consisting primarily of about 20 to about 60 percent of a blend of at least two synthetic elastomers, about 10 to about 40 percent elastomer plasticizer, about 5 to about 30 percent filler, and about 15 to about 35 percent softener, by weight of the gum base, said chewing gum having a Taber Stiffness at least 5 percent lower than that of a comparable wax containing gum.

14. The wax-free chewing gum of claim 13, wherein the synthetic elastomers are selected from at least two elastomers from the group consisting of styrene-butadiene copolymer, isoprene- isobutylene copolymer, polyisobutylene, and polyvinylacetate.

15. The wax-free chewing gum of claim 13, wherein the elastomer plasticizer is selected from the group consisting of glycerol ester of wood rosin, glycerol ester of partially hydrogenated wood rosin, terpene resins and combinations thereof.

16. The wax-free chewing gum of claim 13, wherein the filler is selected from the group consisting of calcium carbona.e, talc, and combinations thereof.

17. The wax-free chewing gum of claim 13, wherein the softener is selected from the group consisting of hydrogenated vegetable oils, glycerol monostearate, triacetin, lecithin, and combinations thereof.

18. A wax-free chewing gum, comprising:
a water soluble bulk portion;
one or more flavoring agents; and
a water insoluble chewing gum base consisting primarily of about 12 to about 30 percent natural elastomers, about 20 to about 40 percent of at least two synthetic elastomers, about 5 to about 25 percent elastomer plasticizer, about 4 to about 25 percent filler, and about 15 to about 30 percent softener, by weight of the chewing gum base, said chewing gum having a Taber Stiffness ranging from about 15 to 55, and an Instron data of from 0.02 to 0.08 pound-inches.

19. The wax-free chewing gum of claim 18, wherein the natural elastomer is selected from the group consisting of jelutong, sorva, chicle, massaranduba balata, and combinations thereof.

20. The wax-free chewing gum of claim 18, wherein the synthetic elastomers are selected from at least two elastomers from the group consisting of styrene-butadiene elastomer, isoprene-isobutylene copolymer, polyisobutylene, polyvinylacetate.

21. The wax-free chewing gum of claim 18, wherein the elastomer plasticizer is selected from the group consisting of glycerol esters of partially hydrogenated rosin, methyl esters of rosin, glycerol esters of rosin, terpene resin, and combinations thereof.

22. The wax-free chewing gum of claim 18, wherein the filler is selected from the group consisting of calcium carbonate, talc, and combinations thereof.

23. The wax-free chewing gum of claim 18, wherein the softener is selected from the group consisting of hydrogenated vegetable oils, glycerol monostearate, triacetin, lecithin, and combinations thereof.

24. A wax-free chewing gum having an initial soft bite, comprising:
a water soluble bulk portion;
one or more flavoring agents; and
a water insoluble chewing gum base consisting primarily of about 20 to about 60 weight percent of a blend of at least two synthetic elastomers, about 10 to about 50 weight percent elastomer plasticizer, about 10 to about 40 weight percent filler, and about 5 to about 40 weight percent softener, said chewing gum having an initial soft bite, a Taber Stiffness of from about 15 to about 55 Taber Units and an Instron yie,ld of from about 0.02 to 0.08 pound-inches, and further wherein the water soluble bulk portion comprises from about 0.1 to about 15 weight percent, based on total chewing gum, of a water soluble/dispersible softener.

25. The wax-free chewing gum of claim 24, wherein the synthetic elastomers are selected from at least two from the group consisting of styrene-butadiene
copolymer, isoprene-isobutylene copolymer,
polyisobutylene, polyvinylacetate.

26. The wax-free chewing gum of claim 24, wherein the blend of elastomers contains at least three
elastomers.

27. The gum of claim 25, wherein the blend of elastomers contains at least three elastomers.

28. The wax-free chewing gum of claim 24, wherein the elastomer plasticizer is selected from the group consisting of glycerol esters of partially hydrogenated rosin, glycerol esters of rosin, and combinations thereof.

29. The wax-free chewing gum of claim 24, wherein the filler is selected from the group consisting of calcium carbonate, talc, and combinations thereof.

30. The wax-free chewing gum of claim 24, wherein the softener is selected from the group consisting of hydrogenated vegetable oil, glycerol monostearate, acetylated monoglyceride, glycerol triacetate, and combinations thereof.

31. A wax-free chewing gum having a soft initial bite, comprising gum base, flavor and sweetener; said gum base comprising:
about 20 to about 60 weight percent of a blend of at least two synthetic elastomers;
0 to about 30 weight percent of at least one natural elastomer;
about 5 to about 55 weight percent of at least one elastomer plasticizer;
about 4 to about 40 weight percent of at least one filler; and
about 5 to about 40 weight percent of at least two softeners, said chewing gum having both a Taber Stiffness and an Instron yield at least 5 percent less than a comparable wax containing gum, said chewing gum further comprising at least one binding agent selected from corn syrup, hydrogenated starch
hydrolyzate, coevaporated Lycasin, or mixtures thereof.

32. The chewing gum of claim 31, wherein the gum has reduced tack to dental surfaces.

33. The chewing gum of claim 31, wherein the gum is sugarless.

34. The chewing gum of claim 31, wherein the gum is in the form of a coated pellet or ball.

35. The chewing gum of claim 31, wherein the gum is a bubble gum.

36. A rapid setting wax-free chewing gum having an initial soft bite as measured by having a Taber Stiffness ranging from between about 15 to about 55, and being at least 5 percent less than the Taber
Stiffness of a comparable wax gum and further wherein the chewing gum comprises a gum base which comprises:

Ingredient Weight percent
gum base
a) at least two synthetic 20 - 60 percent
elastomers
b) at least one elastomer 5 - 55 percent
plasticizer
c) at least one filler 4 - 40 percent d) at least one fat, oil, and 5 - 40 percent
softener

37. The chewing gum base of claim 36, wherein the natural elastomer is selected from the group consisting of jelutong, lechi caspi, perillo, sorva, massaranduba balata, massaranduba chocolate, nispero, rosin dinha, chicle, gutta hang kang, smoked or liquid latex, guayule, chiquibul, crown gum, pendare, venezuelau chicle, leche de vaca, niger gutta, tunu, chilte, and combinations thereof.

38. The chewing gum base of claim 36, wherein the synthetic elastomers are selected from the group consisting of polyisobutylene, butadiene-styrene copolymer, polyvinylacetate, vinyl acetate-vinyl laurate copolymer, polyisoprene, isobutylene-isoprene copolymer, and combinations thereof.

39. The chewing gum base of claim 36, wherein the synthetic elastomers are selected from styrene-butadiene copolymer, polyisobutylene elastomer, isobutylene-isoprene copolymer, polyvinylacetate and mixtures thereof.

40. The chewing gum base of claim 36, wherein the elastomer plasticizer is selected from the group consisting of glycerol esters of rosin, glycerol esters of partially hydrogenated rosin, glycerol esters of polymerized rosin, glycerol esters of partially dimerized rosin, partially hydrogenated methyl esters of rosin, glycerol esters of tall oil rosin, pentaerythritol esters of rosin, methyl esters of rosin, pentaerythritol esters of partially hydrogenated rosin, synthetic terpene resin, natural terpene resin, and combinations thereof.

41. The chewing gum base of claim 36, wherein the filler is selected from the group consisting of calcium carbonate, magnesium carbonate, talc, ground limestone, magnesium silicate, aluminum silicate, clay, alumina, titanium dioxide, mono-, di- and tri-calcium
phosphates, cellulose, and combinations thereof.

42. The chewing gum base of claim 36, wherein the softener is selected from the group consisting of tallow, hydrogenated tallow, hydrogenated vegetable oils, partially hydrogenated vegetable oils, cocoa butter, glyercol monostearate, mono-, di- and
triglycerides, acetylated monoglycerides, glycerol diacetate, glycerol triacetate, lecithin, fatty acids, lanolin, and combinations thereof.

43. The chewing gum of claim 36 which further comprises flavoring agents and a water soluble bulk portion, which bulk portion contains from about 0.1 to about 15.0 weight percent water soluble/water dispersible softener selected from the group consisting of glycerin, propylene glycol, glycerol monostearate, lecithin, and mixtures thereof.

44. The chewing gum of claim 36 wherein the water soluble bulk portion further comprises sweeteners selected from the group consisting of low intensity sweeteners, high intensity sweeteners, and mixtures thereof.