CN1098902A - Tooth bleaching glue and its prodn. technique - Google Patents
Tooth bleaching glue and its prodn. technique Download PDFInfo
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- CN1098902A CN1098902A CN 94110807 CN94110807A CN1098902A CN 1098902 A CN1098902 A CN 1098902A CN 94110807 CN94110807 CN 94110807 CN 94110807 A CN94110807 A CN 94110807A CN 1098902 A CN1098902 A CN 1098902A
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- acrylic acid
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- bleaching glue
- acrylamide
- polymer
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Abstract
The tooth-bleaching colloid is prepared from acrylic acid-acrylamide polymer, sodium hydroxide solution and urea peroxide solution. The transparent semi-fluid without colour, taste and corrosion is suitable for decolouring the pigmented spots on surface of tooth, which is caused by affection.
Description
The present invention relates to a kind of bleaching glue and production technology thereof of removing spots such as dental surface mottle and tartar, its technical field belongs to " polymer manufacture ", and international Patent classificating number is CO8FO1.
Along with the raising of living standards of the people, to tooth to beautify requirement more and more urgent.The dental fluorosis that sickness rate is very high, tetracycline pigmentation teeth make people's tooth flavescence blackening, with age, disease, smoking also can cause the dental surface variable color.For treating these tooth pathological changes, the eighties mainly adopts strong acid or hydrogen peroxide fulling, and this method is big to the tooth damage of living, and the tooth after the bleaching is the Chalk color, tarnish, not nature; After adopt photo-curing resin veneer method again, promptly on the surface of vital pulp tooth, cover on the darker facing of color with whiter resin, color of teeth burnt hair after this method is handled, poor morphology has grown that resin is easy to change to come off the time, exists significant limitation.
The nineties, international tooth scientific cirle are released a kind of new tooth decolouring system's (seeing U.S. Pat .5098303, Mar.24,1992), and the beautiful teeth that decoloured with this system naturally, and is glossy, welcome by the patient.This decolouring system comprises bleaching glue, decolouring make-up machine and three parts of decolouring plastic sheet, and the prescription and the production technology of its core-bleaching glue are unexposed.At present, China does not still have producer can produce bleaching glue, and the whole dependence on import of the required bleaching glue of each hospital cost an arm and a leg, and need expend a large amount of foreign exchanges every year.
For addressing the above problem, the invention provides and a kind ofly can remove the spot on the tooth effectively for tooth decolouring usefulness, and not colourless, tasteless, the non-corrosive tooth bleaching glue and the production technology thereof of damage tooth and soft tissue.
The present invention realizes in the following way: this tooth bleaching glue is formulated by acrylic acid-acrylamide polymer, sodium hydroxide solution and urea peroxide cellulose solution, and its production technology is as follows:
1. with acrylic acid, acrylamide, water and glycerol, be that catalyst is heating after polyreaction generates the acrylic acid-acrylamide polymer with the Ammonium persulfate..
2. in above-mentioned polymer, add sodium hydrate aqueous solution, carry out neutralisation treatment, make its pH value about 5.
3. add with aqueous hydrogen peroxide solution and the plain synthetic urea peroxide cellulose solution of urea, promptly get tooth bleaching glue after stirring.
Now the present invention is described in detail in conjunction with the embodiments.With synthetic 170g tooth bleaching glue is example:
1. polymer is synthetic
In a 500ml beaker, add 20ml acrylic acid, 10g acrylamide, 1.5g Ammonium persulfate., 30ml water, heating is dissolved the back and is added the 30ml glycerol, stir, and cover, continue heating with surface plate, the control temperature is between 90～110 ℃, at this moment, polyreaction begins and slowly quickens, and volume has approximately increased by 3～6 times, after question response is thorough, just get acrylic acid-acrylamide polymer 100g.
2. neutralization
The acrylic acid-acrylamide polymer is better mobile when hot, should in time add alkali treatment.Slowly drip 50% aqueous solution of about 15ml by the sodium hydroxide preparation under stirring energetically, the limit edged is surveyed pH value with the PH reagent paper, and pH value is stabilized in about 5.The acrylic acid-acrylamide polymer add in the alkali and after heavily about 122.8g.
3. add the urea peroxide element
In adding alkali and after polymer in disposable adding by plain 26g of the plain synthetic urea peroxide of aqueous hydrogen peroxide solution and urea and mother solution 20ml, stir, promptly get final product tooth bleaching glue 170g.
In sum:
1. the prescription of acrylic acid-acrylamide polymer is:
Acrylic acid: acrylamide: water: glycerol=2(ml): 1(g): 3(ml): 3(ml)
Catalyst (NH
4) S
2O
8(Ammonium persulfate .) consumption be acrylic acid add acrylamide 5%.
2. the prescription of tooth bleaching glue is:
Polymer: sodium hydroxide solution: urea peroxide cellulose solution=3: 1: 1.
Good effect of the present invention is:
1. tooth bleaching glue of the present invention has the characteristics such as colourless, tasteless, non-corrosiveness, and the beautiful teeth that wherethrough was managed, natural, fair and clear is applicable to the cacodontia decoloring treatment that produces color spot because of a variety of causes at dental surface.
2. tooth bleaching glue production technology of the present invention, process is simple, is easy to realize large-scale production, has solved the difficult problem of domestic long-term dependence on import bleaching glue.
Claims (8)
1, a kind of tooth bleaching glue, formulated by polymer, sodium hydrate aqueous solution and urea peroxide cellulose solution, it is characterized in that: the prescription of this bleaching glue is:
Polymer: sodium hydroxide solution: urea peroxide cellulose solution=3: 1: 1
2, bleaching glue according to claim 1, it is characterized in that: polymer is the acrylic acid-acrylamide polymer, generated through polyreaction by acrylic acid, acrylamide, water and glycerol, its prescription is: acrylic acid: acrylamide: water: glycerol=2(ml): 1(g): 3(ml): 3(ml).
3, a kind of tooth bleaching glue production technology, it is characterized in that: with acrylic acid, acrylamide, water and glycerol is raw material, with the Ammonium persulfate. is catalyst, at 90～110 ℃ after polyreaction generates polymer, add the alkali neutralization more while hot, add urea peroxide element and mother solution thereof at last, after stirring, promptly get tooth bleaching glue.
4, production technology according to claim 3 is characterized in that: make catalyst with Ammonium persulfate. in the polyreaction, its consumption be acrylic acid add acrylamide 5%.
5, production technology according to claim 3 is characterized in that: the temperature of polyreaction is controlled between 90～110 ℃.
6, production technology according to claim 3 is characterized in that: add in the alkali and the time, should add quick stirring while hot, slowly drip.
7, production technology according to claim 3 is characterized in that: urea peroxide element and mother solution should once add.
8, bleaching glue according to claim 1, it is characterized in that: the pH value of this bleaching glue approximates 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94110807A CN1038302C (en) | 1994-01-08 | 1994-01-08 | Tooth bleaching glue and its prodn. technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94110807A CN1038302C (en) | 1994-01-08 | 1994-01-08 | Tooth bleaching glue and its prodn. technique |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1098902A true CN1098902A (en) | 1995-02-22 |
| CN1038302C CN1038302C (en) | 1998-05-13 |
Family
ID=5034731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94110807A Expired - Fee Related CN1038302C (en) | 1994-01-08 | 1994-01-08 | Tooth bleaching glue and its prodn. technique |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1038302C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105592843A (en) * | 2013-09-27 | 2016-05-18 | 罗门哈斯公司 | Oral care composition comprising bleaching agent |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5098303A (en) * | 1990-03-22 | 1992-03-24 | Ultradent Products, Inc. | Method for bleaching teeth |
-
1994
- 1994-01-08 CN CN94110807A patent/CN1038302C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105592843A (en) * | 2013-09-27 | 2016-05-18 | 罗门哈斯公司 | Oral care composition comprising bleaching agent |
| CN105592843B (en) * | 2013-09-27 | 2021-09-14 | 罗门哈斯公司 | Oral care compositions comprising bleaching agents |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1038302C (en) | 1998-05-13 |
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