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Denture adhesive

A technology for adhesives and dentures, applied in the direction of adhesive types, adhesives, unsaturated ether copolymer adhesives, etc., can solve problems such as fine adjustment of denture adhesives

Inactive Publication Date: 2002-02-06
BLOCK DRUG CO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] A problem with denture adhesive copolymers, especially MVE / MA copolymers, is that covalent crosslinking is not an effective means of fine-tuning the desired properties of the denture adhesive

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-9

[0041] To prepare lysine-polymethyl vinyl ether / maleic acid, add 99.62 grams of methyl vinyl ether / maleic anhydride copolymer (GANTREZ AN 169) to 1250 ml of vigorously mixed deionized water, and to this mixture add 0.38 g of L-lysine monohydrate, and the resulting mixture was kept mixing at room temperature for an additional 30 minutes.

[0042] The mixture was then heated to 85-90°C and mixing continued at this temperature for 2 hours, the resulting solution was drained into a pan (while maintaining bath temperature and mixing speed) and dried in an 85°C oven. The copolymer produced was 0.36% substituted lysine GANTREZ acid.

[0043] Using the same method, different amounts of lysine were used to generate different DS lysine-GANTREZ acid copolymers, which are listed in Table 1. A comparative copolymer without crosslinking (0% lysine) was also prepared. The dry copolymer was milled and a 0.25% strength by weight solution of the copolymer was prepared in deionized water, and ...

Embodiment 10-17

[0047] To prepare the partial calcium salt of polymethylvinyl ether / maleic acid, 74.87 grams of GANTREZAN 169 was added to 1250 ml of vigorously mixed deionized water. To this mixture was added 0.24 grams of L-lysine monohydrate, and the resulting mixture was Mixing was continued at room temperature for 30 minutes to form a slurry. 24.89 grams of calcium hydroxide was added to the slurry and the mixture was heated to 85-90°C and the mixing was continued at 85-90°C for 2 hours. A portion of the saline solution was poured into the pan (while maintaining bath temperature and mixing speed) and the solution was heated in an 85°C oven until dry.

[0048] The salt is ground and used to make a paste-like denture adhesive. This salt is 0.3 lysine-70 calcium GANTREZ salt. Using different amounts of lysine and metal oxides, lysine-GANTREZ salts with different percentage substitutions were prepared and used to prepare paste denture adhesives, combining 30% salt (by weight) with 24% by w...

Embodiment 18-19

[0052] To prepare methyl vinyl ether maleic acid copolymer salt of 0.5% substituted lysine, 40% substituted zinc, 20% substituted magnesium and 10% substituted sodium, add 75.93 grams of GANTREZ AN 169 to 1000ml and mix vigorously 0.40 g of L-lysine monohydrate was then added to the mixture, and the resulting mixture was further mixed at room temperature for 30 minutes.

[0053] 250 ml of deionized aqueous solution containing 15.85 grams of zinc oxide, 3.93 grams of magnesium oxide and 3.90 grams of sodium hydroxide were gradually added to the lysine GANTREZ AN slurry, and the mixture was heated to 85-90 ° C, continued to mix and maintained at this temperature for 2 Hour. Pour this portion of the salt solution into a pan (while maintaining bath temperature and mixing speed) and heat the salt at 85°C until dry. The dried salt was ground and used to prepare a denture adhesive paste formulation.

[0054] User tests showed that the denture adhesive paste made with the above salt...

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PUM

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Abstract

A denture adhesive comprising a copolymer salt at least partially cross-linked by lysine, histidine, arginine, nontoxic derivatives or family members of lysine, histidine or arginine and mixtures thereof.

Description

field of invention [0001] The invention relates to denture adhesives and methods of making and using denture adhesives. Background technique [0002] Dentures are replacements for missing teeth, used to replace all or some of the teeth in the mouth. Despite the diligent and continuous efforts of prosthetics and designers who restore teeth, dentures do not always fit perfectly. Adhesive creams, liquids or powders are often used to protect or temporarily secure dentures in the mouth as dentures that fit well can become ill-fitting over time due to natural shrinkage and changes in the gum or mucous tissue . [0003] Such denture adhesive compositions have a number of desirable properties. The denture adhesive should develop a high tack when in contact with saliva to hold the denture in place once it is in place in the oral cavity. In order to effectively hold the denture in place, it is ideal that the saliva-hydrated adhesive diffuse to the tooth-mucosal interface. The muc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K6/00C08F8/30C09J129/10C09J135/00C09J135/08
CPCA61K6/0061C09J135/08A61K6/0067C08F8/30C08L2666/36A61K6/66A61K6/69A61K6/35C08L77/04C08L33/08C08L35/08A61K6/00
Inventor R·C·加斯曼E·王H·K·安
Owner BLOCK DRUG CO INC
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