Patented Nov. 22, 1938 2,137,746 UNITED STATES PATENT OFFICE 2,3,46 , GUM Robert L. Wilson, Chicago, Ill., assignor to Wm. Wrigley, Jr., Company, Chicago, Ill., a corpo ration of Delaware No Drawing. Application June 27, 1938, Serial No. 216,063 3 Claims. (C. 99-35) oil refining processes and is of relatively recent My invention relates to chewing gums and is Origin. After careful research, I have found, as Concerned with the preparation of products hav previously stated, that this particular type of ing particularly satisfactory properties and char paraffin acts in an entirely unexpected man acteristics. ner in . 5 5 . In the preparation of chewing gums in ac In order that those skilled in the art may even Cordance with prior art practice, gums, and more fully appreciate the scope of my invention, other gums, and and the like have I list hereinbelow specific embodiments for carry been blended and mixed with the proper amounts ing out the novel teachings of my invention. It of , flavor and the like to produce products will be understood that these embodiments are O 0 having desired chewability and similar charac illustrative and in no wise limitative of the full teristics. In order to achieve particular effects, Scope of my invention. Thus, for example, dif it has been common to use oleaginous and waxy ferent base mixtures of gums, guttas, rubbers, materials in the chewing gum mix as, for exam resins and the like may be utilized, the propor ple, paraffin wax, spermaceti, ceresin wax, bees tions thereof may vary, and the amounts of the 5 Wax, candelilla Wax, , stearine, paraffin Wax are likewise variable within limits. 5 petrolatum, cocoa, butter, and the like. While the use of these materials brings about im Eacample I-Cheuying gun base proVements in certain characteristics of the final Percent chewing gum product, usually these improve delutong (dry)------92 20 ments are obtained at a sacrifice of other de Paraffin wax (m.p. 168 F.).------8 20 Sired properties. Thus, for example, while ordi Eacample II-Cheaving nary paraffin Wax having a melting point of Percent from about 110 degrees F. to a maximum of 149 Ester gum------80 degrees F. tends to impart desired Smoothness Coumarone ------45 25 to chewing gum mixes, it also possesses the unde Latex (dry)------5 25 sirable feature of rendering the final chewing Paraffin Wax (m. p. 180° F.)------0 gum too plastic and, in addition, it imparts other Eacample III-Cheuing gum base objectionable properties to the chewing gum. ". Percent I have made the surprising discovery that 30 paraffin having a melting point rang Jelutong (dry)------80 30 ing from a minimum of about 160 degrees F. Gutta Siak ------15 and extending upwardly to about 185 degrees F. Paraffin Wax (m. p. 176 F.)------5 or slightly higher, particularly from about 168 The proportions of the Special paraffin Wax degrees. F. to about 180 degrees F., have the which I utilize herein are, as stated, subject to 35 unusual and entirely unexpected property of not variation, but I prefer to employ from about 35 only imparting optimum smoothness and free 2.0% to 15.0% thereof, calculated on the weight dom from tack to chewing gum mixes but, in of the dry finished chewing gum base, approxi addition, leave the composition with the very mately 5% to 8% representing an optimum desirable qualities of Springiness and roundness, amount in most cases. 40 heretofore unobtainable with so-called smooth In order to make a chewing gum from the 40 ing ingredients utilized in chewing gum mixes base material set forth above in the illustrative made from bases containing guttas, latexes and examples, is proceed in accordance with Well guns Such as jelutong, gutta, K, gutta, Soh, gutta, known and established practice. Thus, for ex siak, ester gum, resins such as coumarone, dam ample, I prepare a chewing gum mix employing 45 mar, mixtures thereof, and the like, as more fully about 20% of the chewing gum base, about 60% set out hereinafter. of pulverized sugar (sucrose), about 19% com Ordinary paraffin waxes have a melting point, mercial corn , and about 1% of a desired as indicated above, within the range of about flavor. It will be seen that, based on the Weight 310 degrees F. to a maximum of about 149 de of the finished chewing gum, the Special paraffin 50 grees F., those which almost invariably have been 50 utilized in chewing gum having a melting point wax is present in proportions of the order of of the order of 120 degrees F. to 130 degrees F. about 0.3% to about 4% and, in the preferred Paraffin wax having a melting point of at least embodiments of my invention, in proportions 160 degrees F. and upwardly to about 180 degrees slightlyIn addition above toi.0%. the advantages. emanating from 55 55 F. or somewhat higher represents a by-product of . 2 2,187,746 my invention, as pointed out hereinabove, there are other important improvements which accrue. wax having a melting point of at least 160 de Thus, the addition of the special wax to jelutong grees F. and other similar chewing gum base materials 3. Chewing gum containing a paraffin wax produces, in the final or finished chewing gum, having a melting point of at least 160 degrees F. excellent cohesion, roundness, lift and life or 4. A chewing gum base including a gutta Con springiness not attainable by means of the par stituent and a paraffin wax having a melting affin waxes heretofore employed. It produces a point of from about 160 degrees F. to about 180 firmer chew and, in respect to smoothness, in degrees F. 10 which property Mexican chicle is outstandingly 5. Chewing gum containing jelutong and a satisfactory and in which chicle substitutes are paraffin wax having a melting point of from 10 notably deficient, it imparts this property to about 160 degrees F. to about 180 degrees F. jelutong and the like so that the resulting prod 6. A chewing gum base containing. jelutong lucts are at least the equal of and, in many cases, and a paraffin wax having a melting point of 5 are superior to Mexican chicle. from about 160 degrees F. to about 180 degrees As I have indicated hereinabove, the special F., the paraffin comprising approximately 2% 15 paraffin Wax may be employed to improve to 15%, by weight, of said chewing gum base. markedly any of the usual chewing gum bases or 7. Chewing gum containing chicle, jelutong, mixtures thereof including, for example, in addi and a paraffin wax having a melting point of 20 tion to those mentioned previously, balata, Ieche from about 160 degrees F. to about 180 degrees F. Caspi, gutta percha, coumarone-indene resins, 8. Chewing gum containing from about 0.3% 20 and the like, with or without Mexican chicle and to about 4.0%, by Weight, of a paraffin Wax hav with or without improving agents such as hy ing a melting point of from about 160 degrees drogenated oils, mineral oils, , and other F. to about 180 degrees F. 25 agents which are sometimes added to chewing 9. A chewing gum base containing a gutta gum mixes for obtaining special effects. The in constituent and a paraffin wax having a melting 25 vention is of especial utility in the improvement point of at least 160 degrees F., the paraffin com of chewing gum bases of the jelutong or ponti prising approximately 5% to 8%, by weight, of anak type, and the ester gum and coumarone said chewing gum base. 30 resin types. 10. Chewing gun containing jelutong and ap proximately 1.0%, based on the weight of said Wherever the term "chewing gum material' is chewing gun, of a paraffin wax having a melt 0. employed herein and in the claims, it will be ing point of from about 160 degrees F. to 180 understood to cover the chewing gum bases as degrees F. well as the finished chewing gum, unless the 35 connotation otherwise expressly indicates. 11. A chewing gum base including a major While I have described my invention in detail, proportion of a chicle substitute and a minor 35 it will be understood that variations and modi proportion of a paraffin wax having a melting fications may be made without departing from point of from about 160 degrees F. to about 180 the spirit thereof, as exemplified by the ap degrees F. 40 pended claims. 12. A chewing gum base including a paraffin wax having a melting point of approximately What I claim as new and desire to protect by 168 degrees F. to approximately 180 degrees F. 40 Letters Patent of the United States is: 13. Chewing gum including jelutong and a 1. A chewing gun material including a paraf paraffin Wax having a melting point of approxi fin wax having a melting point of at least 160 mately 168 degrees F. to approximately 180 de 45 degrees F. grees F.

2. A chewing gun base including a paraffin ROBR I, WILSON. 45