# US 8,999,410 B2 · Chewing gum containing styrene-diene block copolymers

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- Number: US 8,999,410 B2
- Document ID: US8999410B2
- Status: Granted
- Kind: B2
- Application number: 11/614,142
- Filed: 2006-12-21
- Published: 2007-07-26
- Granted: 2015-04-07
- Earliest claimed: 2005-12-29
- Assignees: Wm. Wrigley Jr. Company
- Applicants: Pere Ruiz Donaire; Roser Amposta Estruch; Joo H. Song
- Inventors: Pere Ruiz Donaire; Roser Amposta Estruch; Joo H. Song
- Web page: https://patentgrep.com/patent/US8999410B2

## CPC

- A23G 4/08: of the chewing gum base
- A23G: COCOA; COCOA PRODUCTS, e.g. CHOCOLATE; SUBSTITUTES FOR COCOA OR COCOA PRODUCTS; CONFECTIONERY; CHEWING GUM; ICE-CREAM; PREPARATION THEREOF

## Abstract

The present invention relates generally to a chewing gum composition, as well as methods for the preparation thereof. More specifically, the present invention relates to a gum base, as well as a chewing gum composition prepared therefrom, which contain a styrene-diene block copolymer, such as a styrene-butadiene block copolymer.

## Claims

### Claim 1

A chewing gum comprising:
a water soluble gum portion; and
a water insoluble base portion, wherein said base portion comprises an elastomer and an elastomer plasticizer, wherein said elastomer comprises a styrene-diene block copolymer, and wherein said styrene-diene block copolymer is present at a concentration of from about 2 weight percent to about 15 weight percent, based on total weight of said base portion.

### Claim 2 (depends on 1)

The chewing gum of claim 1 wherein the styrene-diene block copolymer is styrene-butadiene block copolymer.

### Claim 3 (depends on 1)

The chewing gum of claim 1 wherein the elastomer has a melt flow index at 190° C. of from about 0.5 g/10 minutes to about 20 g/10 minutes.

### Claim 4 (depends on 1)

The chewing gum of claim 1 wherein the elastomer has a toluene solution viscosity (25 weight percent) of from about 0.5 Pa·s to about 25 Pa·s.

### Claim 5 (depends on 1)

The chewing gum of claim 1 wherein the elastomer has a Shore A hardness of from about 60 to about 70.

### Claim 6 (depends on 1)

The chewing gum of claim 1 wherein the styrene-diene block copolymer has a styrene content of about 20 weight percent to about 35 weight percent, based on total weight of the styrene-diene block copolymer.

### Claim 7 (depends on 1)

The chewing gum of claim 1 wherein the elastomer plasticizer is present in the gum base at a concentration of from about 10 weight percent to about 90 weight percent, based on total weight of the gum base.

### Claim 8 (depends on 1)

The chewing gum of claim 1 wherein the water insoluble base portion comprises between about 5 and about 50 weight percent filler.

### Claim 9 (depends on 1)

The chewing gum of claim 1 wherein the elastomer has a total styrene concentration between about 15 and about 40 weight percent.

### Claim 10

A chewing gum comprising:
a carbohydrate bulking agent in a concentration from about 5 weight percent to about 95 weight percent;
a gum base in a concentration from 5 weight percent to 95 weight percent;
wherein said gum base comprises an elastomer comprising a styrene-diene block copolymer; an elastomer plasticizer; and, between about 5 and about 50 weight percent filler; wherein said elastomer has a total styrene concentration between about 15 and about 40 weight percent, and wherein said styrene-diene block copolymer is present at a concentration of from about 2 weight percent to about 15 weight percent, based on total weight of said gum base.

### Claim 11 (depends on 10)

The chewing gum of claim 10 further comprising a flavor.

### Claim 12 (depends on 10)

The chewing gum of claim 10 further comprising a high intensity sweetener.

### Claim 13 (depends on 12)

The chewing gum of claim 12 wherein the high intensity sweetener is selected from the group consisting of aspartame, sucralose, acesulfame-K, saccharin, thaumatin, alitame, neotame, cyclamate, perilla derived sweeteners, stevia derived sweeteners, monatin, monellin, chalcones, and combinations thereof.