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Degradable chewing gum substrate and preparation method thereof

A chewing gum base and lactic acid technology, applied in the polymer field, can solve problems such as incomplete product satisfaction, and achieve the effects of suitable glass transition temperature, convenient operation and low glass transition temperature

Inactive Publication Date: 2006-02-22
NORTHWEST NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these products are not entirely satisfactory from a chewing gum perspective

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] ① Add molecular sieves to D-lactic acid with a purity of 85% and dry for more than 24 hours;

[0024] ②Take 50g of dried lactic acid, add it to a 250ml three-necked round-bottomed flask equipped with a thermometer and a water separator, stir and dehydrate under reduced pressure for 4 hours at 40°C and a vacuum of 40mmHg;

[0025] ③Continue to heat up to 180°C to allow the lactic acid to polymerize for 6 hours to form a polyester resin compound;

[0026] ④ After the resin compound is cooled, it is dissolved in acetone, precipitated with ethanol, and then vacuum-dried at 36°C to obtain a chewing gum base with a glass transition temperature of 25°C.

Embodiment 2

[0028] ① Add molecular sieves to D-lactic acid with a purity of 85% and dry for more than 24 hours;

[0029] ②Take 50g of dried lactic acid, add it to a 250ml three-necked round-bottomed flask equipped with a thermometer and a water separator, stir and dehydrate under reduced pressure for 4 hours at 40°C and a vacuum of 40mmHg;

[0030] ③Add 0.05g FeCl 3 Catalyst, continue to heat up to 120 ° C, make the lactic acid polymerize for 6 hours to form polyester resin compound;

[0031] ④ After the resin compound is cooled, it is dissolved in acetone, precipitated with ethanol, then precipitated with distilled water, and finally vacuum-dried at 36°C to obtain a chewing gum base with a glass transition temperature of 18°C.

Embodiment 3

[0033] ① Add molecular sieves to L-lactic acid with a purity of 85% and dry for more than 24 hours;

[0034] ②Take 50g of dried lactic acid, add it to a 250ml three-neck round bottom flask equipped with a thermometer and a water separator, stir and dehydrate under reduced pressure for about 3 hours at 50°C and a vacuum of 60mmHg;

[0035] ③Continue to heat up to 140°C to allow the lactic acid to polymerize for 6 hours to form a polyester resin compound;

[0036] ④ Cool the resin compound and dissolve it with acetone, precipitate it with ethanol, and dry it in vacuum at 36°C to obtain a chewing gum base with a glass transition temperature of 20°C.

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Abstract

The invention provides a process for preparing gum base for chewing gums by using lactic acid as raw material through melting and compensating, the process comprises seasoning the lactic acid, decompressing and dewatering, carrying out condensation reaction to form resin compound, which has lower glass transformation temperature and faster degradation speed.

Description

technical field [0001] The invention belongs to the technical field of macromolecules, and relates to the preparation of a degradable chewing gum base, in particular to an environment-friendly degradable chewing gum base formed by direct polymerization of lactic acid. Background technique [0002] Chewing gum, also known as gum sugar, is a kind of candy with chewing resistance. In addition to the ingredients that can be digested and absorbed, it also contains a gum base matrix for chewing. Dental plaque on the surface, so as to prevent the occurrence of dental caries, and at the same time, it can also exercise the chewing function of the human body, eliminate fatigue, strengthen the brain and refresh the mind. In addition, chewing gum is often used as oral health care or smoking cessation sugar. The varieties of chewing gum can be divided into slices, fruit granules, sandwiches, and sugar-packed shapes according to the shape; according to the ingredients, they can be divide...

Claims

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Application Information

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IPC IPC(8): A23G4/08
Inventor 白雁斌黄晓琴雷自强
Owner NORTHWEST NORMAL UNIVERSITY
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