CN103012707A - Method for anhydride modified melamine resin - Google Patents
Method for anhydride modified melamine resin Download PDFInfo
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- CN103012707A CN103012707A CN2012103826902A CN201210382690A CN103012707A CN 103012707 A CN103012707 A CN 103012707A CN 2012103826902 A CN2012103826902 A CN 2012103826902A CN 201210382690 A CN201210382690 A CN 201210382690A CN 103012707 A CN103012707 A CN 103012707A
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- anhydride modified
- melmac
- anhydride
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Abstract
The invention provides a method for an anhydride modified melamine resin. The method is free from catalysts, solvents and purification. By adopting the method, the controllable reaction for one-substitution to three-substitution can be realized, and the anhydride modified melamine resin can be directly produced in a one-step way.
Description
Technical field
The present invention relates to a kind of method of anhydride modified melmac, for the production of foam materials.
Background technology
Directly apply to the method that the vulnerability US6307046,200510090795.0,200910265033.8 that occurs in the foam production has proposed respectively pure ammonia or amino how pure modified cyanurotriamide for melmac, effectively changed its vulnerability and produced soft open celled foam.But closed pore has the foam of certain rigidity to obtain.It is simple that anhydride modified trimeric cyanamide has technique, efficient is high, catalyst-free, solvent-free, need not the obviously advantage such as post-processed, can produce the adjustable foam materials in switching hole of rigidity.
Summary of the invention
The object of the present invention is to provide a kind of method of anhydride modified melmac, its processing step advantages of simple can realize that one is substituted into three controllable reactions that substitute, and catalyst-free, solvent-free, the anhydride modified melmac of single stage method direct production need not to purify.
Example 1: in 10 liters high mixer, drop into trimeric cyanamide 3000g, maleic anhydride 3000g, pass into circulating nitrogen gas, open stirring, the stopped heating continuation is stirred and put into low mixing when temperature is risen to 150 degrees centigrade when beginning to heat to 90 degrees centigrade, 20 degrees centigrade of cold water cold water cooling sides go out, and omnidistance 50 minutes, obtain pale yellow powder 5870g.The industrial formol of 10Kg36% is dropped into reactor regulate pH=9 with 30% sodium hydroxide solution and open and stir, the 5870g pale yellow powder that obtains is dropped into reactor begin to be warmed to 85 degrees centigrade, stopping to heat is incubated 8 hours after cooling to 72 degrees centigrade.Obtain water white anhydride modified melmac.
Get and drop in the power 1000w microwave oven after above-mentioned anhydride modified melmac 200g adds K12 emulsifying agent 1.5g formic acid solidifying agent 4g pentane foaming agent 1g rapid stirring, obtain density 35Kg closed-cell foam after 45 seconds.Unit weight is about 35Kg after the oven dry
Example 2: in 10 liters high mixer, drop into trimeric cyanamide 3000g and pass into circulating nitrogen gas, open stirring, stopped heating when slowly beginning to heat to 90 degrees centigrade behind the adding diacetyl oxide 3000g, continue to stir and when temperature rises to 150 degrees centigrade, put into low mixing, 20 degrees centigrade of cold water coolings are emitted, omnidistance 55 minutes, obtain white powder 5900g.The industrial formol input reactor of 20Kg36% is regulated pH=9 with 30% sodium hydroxide solution open stirring, the 5900g white powder that obtains and 6000g trimeric cyanamide are dropped into reactor simultaneously begin to be warmed to 85 degrees centigrade, stop to heat cool to 72 degrees centigrade after insulation 8 hours.Obtain water white anhydride modified melmac.
Get and drop in the microwave oven of power 1000w after above-mentioned anhydride modified melmac 200g adds OP-10 emulsifying agent 3g formic acid solidifying agent 4g pentane foaming agent 5g rapid stirring, obtain density 8Kg open celled foam 45 seconds behind the clock.Unit weight is about 8Kg after the oven dry..
Claims (8)
1. the method for an anhydride modified melmac is characterized in that having at least more than one acid anhydrides and trimeric cyanamide to react.
2. the method for a kind of anhydride modified melmac according to claim 1 is characterized in that using: phosphoric anhydride; Diacetyl oxide; Maleic anhydride; Succinic anhydried; The liquid acid anhydrides; One or more combinations.
3. the method for a kind of anhydride modified melmac according to claim 1 is characterized in that temperature of reaction is between 125 degrees centigrade to 175 degrees centigrade.
4. the method for a kind of anhydride modified melmac according to claim 1 is characterized in that trimeric cyanamide and acid anhydrides mol ratio are between 2 to 3.
5. the method for a kind of anhydride modified melmac according to claim 1 is characterized in that the reaction times was at 30 to 60 minutes.
6. the method for a kind of anhydride modified melmac according to claim 1 is characterized in that this reaction has certain risk to carry out between the reaction period under nitrogen protection.
7. the method for a kind of anhydride modified melmac according to claim 1 is characterized in that the mol ratio of the synthetic melmac of formaldehyde and modified cyanurotriamide is 1.5 to 5.
8. the method for a kind of anhydride modified melmac according to claim 1 is characterized in that can adding as required trimeric cyanamide 0 to 75% before the formaldehyde reaction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103826902A CN103012707A (en) | 2012-10-11 | 2012-10-11 | Method for anhydride modified melamine resin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103826902A CN103012707A (en) | 2012-10-11 | 2012-10-11 | Method for anhydride modified melamine resin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103012707A true CN103012707A (en) | 2013-04-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103826902A Pending CN103012707A (en) | 2012-10-11 | 2012-10-11 | Method for anhydride modified melamine resin |
Country Status (1)
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| CN (1) | CN103012707A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105504197A (en) * | 2015-12-18 | 2016-04-20 | 神盾防火科技有限公司 | Method for preparing hole closing agent and obtained product |
| CN110981270A (en) * | 2019-12-02 | 2020-04-10 | 乌鲁木齐久久兴新材料有限公司 | Gypsum powder additive and microwave radiation preparation method |
| CN112321799A (en) * | 2020-11-04 | 2021-02-05 | 黄山新佳精细材料有限公司 | Epoxy resin for high-hardness and low-temperature curing type powder coating and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03111417A (en) * | 1989-09-27 | 1991-05-13 | Kikaku Nijiyuuichi:Kk | Preparation of synthetic resin oligomer having both condensable group and polymerizable group |
| JPH04259506A (en) * | 1991-02-13 | 1992-09-16 | Matsushita Electric Works Ltd | Manufacture of modified wood |
-
2012
- 2012-10-11 CN CN2012103826902A patent/CN103012707A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03111417A (en) * | 1989-09-27 | 1991-05-13 | Kikaku Nijiyuuichi:Kk | Preparation of synthetic resin oligomer having both condensable group and polymerizable group |
| JPH04259506A (en) * | 1991-02-13 | 1992-09-16 | Matsushita Electric Works Ltd | Manufacture of modified wood |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105504197A (en) * | 2015-12-18 | 2016-04-20 | 神盾防火科技有限公司 | Method for preparing hole closing agent and obtained product |
| CN105504197B (en) * | 2015-12-18 | 2018-02-23 | 神盾防火科技有限公司 | A kind of preparation method and products therefrom of closed pore agent |
| CN110981270A (en) * | 2019-12-02 | 2020-04-10 | 乌鲁木齐久久兴新材料有限公司 | Gypsum powder additive and microwave radiation preparation method |
| CN112321799A (en) * | 2020-11-04 | 2021-02-05 | 黄山新佳精细材料有限公司 | Epoxy resin for high-hardness and low-temperature curing type powder coating and preparation method thereof |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130403 |
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| RJ01 | Rejection of invention patent application after publication |