CN103360592B - Synthetic method of cyclocarbonate-terminated linear compound - Google Patents
Synthetic method of cyclocarbonate-terminated linear compound Download PDFInfo
- Publication number
- CN103360592B CN103360592B CN201310316211.1A CN201310316211A CN103360592B CN 103360592 B CN103360592 B CN 103360592B CN 201310316211 A CN201310316211 A CN 201310316211A CN 103360592 B CN103360592 B CN 103360592B
- Authority
- CN
- China
- Prior art keywords
- linear compound
- epoxy resin
- synthetic method
- acid
- reaction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Epoxy Resins (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The invention relates to a synthetic method of a cyclocarbonate-terminated linear compound. A novel cyclocarbonate-terminated linear compound polymer matrix material, which has both elasticity of polysulfide rubber and rigidity of epoxy resin, is synthesized from polyether glycol, a sulfhydryl-terminated carboxylic acid, bisphenol A epoxy resin and CO2; and via diamines curing treatment, a novel high molecular material is obtained, which is integrated with the characteristics of epoxy resin, polyurethane and polysulfide rubber, and has the advantages of being excellent in oil resistance and chemical resistance, and good in weatherability and ultraviolet resistance.
Description
Technical field
The invention belongs to technical field of organic synthesis, be specifically related to a kind of linear compound synthetic method containing end-link carbonic acid ester base.
Background technology
Cyclic carbonate ester is the organic solvent of the high boiling point high polarity of excellent property, is all widely used in the desulfurization and decarburization field of the industrial sectors such as organic synthesis, makeup, metal extraction and natural gas conditioning, urea synthesis and hydrogen manufacturing.In recent years, cyclic carbonate ester is as the intermediate of transesterify, and the market requirement is increased sharply.Particularly find that cyclic carbonate ester can as the excellent medium of high tension battery and electric capacity, only this item market requirement is just up to 200 ~ 3,000,000 tons.
The synthetic method of cyclic carbonate ester mainly contains vicinal diamines method, adjacent chlorohydrination, epoxy compounds-CO
2interpolation.The latter is a kind of most widely used method of current synthesizing cyclic carbonate ester.Under the effect of catalyzer, CO
2with epoxy terminated compound generation ring-opening reaction, generate cyclic carbonate ester.This method make use of greenhouse gases CO
2, be conducive to environment protection and be atom economy type reaction, meet Green Chemistry requirement.Rokicki etc. report under the katalysis of an alkali metal salt and phase-transfer catalyst (quaternary ammonium salt or crown ether), epoxy compounds and CO
2the cyclic carbonate ester of high conversion is synthesized under condition of high voltage at 80 ~ l20 DEG C.
The finished product of bisphenol A type epoxy resin have good physical and mechanical properties, are widely used in every field.But, the direct and CO by bisphenol A type epoxy resin
2the cyclic carbonate ester viscosity be obtained by reacting is comparatively large, and the non-isocyanate polyurethane obtained after diamines solidification exists the shortcomings such as matter is crisp, poor toughness, resistance to oil stains difference.
Summary of the invention
The object of this invention is to provide a kind of linear compound synthetic method containing end-link carbonic acid ester base, described compound has thiorubber elasticity, dihydroxyphenyl propane or F type epoxy resin rigidity concurrently, has the linear compound body material of end-link carbonic acid ester base.
Containing a linear compound synthetic method for end-link carbonic acid ester base, as follows:
(1) selected dibasic alcohol and end mercaptan carboxylic acid are had in the reactor of water-and-oil separator by the ratio input of the amount of 1:2, add water entrainer, take tosic acid as catalyzer, be heated to boiling, the water that reaction generates is isolated by water-and-oil separator, until esterification completes, obtained intermediate product end mercaptan carboxylic acid binary alcohol esters.
(2) take tertiary ammonium salt as catalyzer, the ratio that epoxy resin and end mercaptan carboxylic acid binary alcohol esters press the amount of 2:1 is dropped in four-hole bottle, at 5 DEG C, reacts about 2 hours, obtained epoxy terminated linear compound.
(3) take quaternary ammonium salt as catalyzer, epoxy terminated linear compound is dropped in autoclave, continues to pass into CO
2, be 110 ~ 130 DEG C in temperature of reaction, the reaction times is 6 ~ 10 hours.It is made to change linear compound containing end-link carbonic acid ester base into.Excessive continuing passes into carbonic acid gas.
Polyether Glycols component described in above-mentioned steps (1) includes, but are not limited to as glycol ether, the polyoxyethylene glycol of molecular weight between 200 ~ 1000g/mol or at least one in polyoxypropyleneglycol.
Described end mercaptan carboxylic acid component includes, but are not limited to as at least one in 2-Thiovanic acid, 3-thiohydracrylic acid.
The consumption of described catalyzer tosic acid is 0.3% ~ 1% of reactant total mass; Described water entrainer is selected from any one in benzene,toluene,xylene, and its consumption is 2 ~ 3 times of water generation reaction quality.
Epoxy resin described in above-mentioned steps (2) includes, but are not limited to as at least one in bisphenol f type epoxy resin NPEF-170, bisphenol A type epoxy resin E-44, E-51.
Described tertiary amine catalyst includes, but are not limited to as any one in trolamine, triethylene diamine, N methyldiethanol amine, and its consumption is 0.1% ~ 0.5% of reactant total mass.
Quaternary ammonium salt catalyzer described in above-mentioned steps (3) includes, but are not limited to as any one in tetraethylammonium bromide, Tetrabutyl amonium bromide, palmityl trimethyl ammonium chloride, and its consumption is 0.5% ~ 1% of reactant total mass.
Described CO
2gas purity is greater than 99.8%, passes into CO
2pressure be 1.2 ~ 1.5MPa, temperature of reaction is 115 ~ 130 DEG C, and the reaction times is 6 ~ 10 hours.
The described linear compound structural formula containing end-link carbonic acid ester base is as follows:
Described R1 is the residue of glycol ether, polyoxyethylene glycol or polyoxypropyleneglycol;
The residues Structures formula of glycol ether, polyoxyethylene glycol is-CH
2-CH
2-[-O-CH
2-CH
2-]
x-, X=1 ~ 21.3;
Polyoxypropyleneglycol residues Structures formula is-[-CH (CH
3)-CH
2-O-]
y-CH (CH
3)-CH
2-, y=5.6 ~ 15.9.
R2 is-(CH
2)
x-, X=1,2;
R3 is the residue of epoxy resin NPEF-170, E-44 or E-51,
E-44, E-51 residues Structures formula is
m=0.18～0.4，
NPEF-170 residues Structures formula is
n≈0.1。
Beneficial effect of the present invention:
(1) the present invention's mercaptan carboxylic acid and polyether Glycols carries out chain extending reaction, has synthesized mercapto polyether binary alcohol esters.
(2) the present invention's mercapto polyether binary alcohol esters and epoxy resin carry out chain extending reaction again and have synthesized epoxy terminated linear compound, the epoxy resin-base of rigidity is combined with flexible chainextender, defines the novel texture unit of coupling hardness with softness.
(3) the present invention is by the epoxy group(ing) at epoxy terminated linear compound molecular chain two ends and CO
2reaction, makes the epoxy group(ing) of ternary expand to the cyclocarbonate radical of five yuan, makes it be converted into not containing the base polyurethane prepolymer for use as of isocyanate group.
(4) the catalyst system simple and stable that each step reaction is used, and be commercially available prod, cheap and easy to get, all need not be separated with rear.
(5) each step reaction does not all use any organic solvent, and esterification water entrainer used can recycle, is an environment-friendly technological process.
(6) reaction conditions is gentle, and technological process is easy, is suitable for and realizes industrialization.
Specific embodiments
The present invention is set forth further below in conjunction with non-limiting specific embodiment.Should be understood that these embodiments are only not used in for illustration of the present invention to limit the scope of the invention.In addition, should be understood that those skilled in the art can make various changes or modifications the present invention, and these equivalent form of values fall within the application's appended claims limited range equally after having read the content that the present invention tells about.
Embodiment 1
Described R1 is the residue of glycol ether;
R2 is-(CH
2)
x-, X=1;
R3 is the residue of epoxy resin E-44.
106g glycol ether and 184g 2-Thiovanic acid being dropped into has in the 500ml four-hole boiling flask of water-and-oil separator, add 75ml benzene, 0.9g tosic acid, reflux, until esterification completes, obtained intermediate product end Thiovanic acid glycol ether ester.
Held by 64g Thiovanic acid glycol ether ester and 220g epoxy resin E-44 to drop in 500ml there-necked flask, add 0.28g trolamine, at 5 DEG C, react about 2 hours, obtained corresponding epoxy terminated linear compound.
Proceeding to 250g walking products therefrom in 500ml autoclave again, adding 1.25g tetraethylammonium bromide, passing into CO
2gas reaches 1.5MPa to still internal pressure, is heated to 120 DEG C, and reaction 8h, obtain accordingly containing the linear compound of cyclocarbonate radical, productive rate is 95%.
Embodiment 2
Described R1 is the residue of glycol ether;
R2 is-(CH
2)
x-, X=2;
R3 is the residue of epoxy resin E-44.
106g glycol ether and 212g3-thiohydracrylic acid being dropped into has in the 500ml four-hole boiling flask of water-and-oil separator, add 75ml benzene, 3.2g tosic acid, reflux, until esterification completes, obtained intermediate product end thiohydracrylic acid glycol ether ester.
Held by 70g thiohydracrylic acid glycol ether ester and 220g epoxy resin E-44 to drop in 500ml there-necked flask, add 1.45g N methyldiethanol amine, at 5 DEG C, react about 2 hours, obtained corresponding epoxy terminated linear compound.
Proceeding to 250g walking products therefrom in 500ml autoclave again, adding 2.5g tetraethylammonium bromide, passing into CO
2gas reaches 1.5MPa to still internal pressure, is heated to 120 DEG C, and reaction 8h, obtain accordingly containing the linear compound of cyclocarbonate radical, productive rate is 95.5%.
Embodiment 3
Described R1 is the residue of polyoxyethylene glycol;
R2 is-(CH
2)
x-, X=1;
R3 is that the residue statement of epoxy resin E-51 is unclear.
By 100g molecular weight be 200 polyoxyethylene glycol and 92g 2-Thiovanic acid drop into have in the 500ml four-hole boiling flask of water-and-oil separator, add 55ml toluene, 1.5g tosic acid, reflux, until esterification completes, obtained intermediate product end Thiovanic acid polyoxyethylene glycol (200) ester.
Held by 87g Thiovanic acid polyoxyethylene glycol (200) ester and 200g epoxy resin E-51 to drop in 500ml there-necked flask, add 1.0g trolamine, at 5 DEG C, react about 2 hours, obtained corresponding epoxy terminated linear compound.
Proceeding to 250g walking products therefrom in 500ml autoclave again, adding 2.0g Tetrabutyl amonium bromide, passing into CO
2gas reaches 1.5MPa to still internal pressure, is heated to 130 DEG C, and reaction 6h, obtain accordingly containing the linear compound of cyclocarbonate radical, productive rate is 94.5%.
Embodiment 4
By 200g molecular weight be 600 polyoxyethylene glycol and 62g 2-Thiovanic acid drop into have in the 500ml four-hole boiling flask of water-and-oil separator, add 30ml dimethylbenzene, 2.0g tosic acid, reflux, until esterification completes, obtained intermediate product end Thiovanic acid polyoxyethylene glycol (600) ester.
Held by 130g Thiovanic acid polyoxyethylene glycol (600) ester, 78g epoxy resin E-44,71g epoxy resin E-51 to drop in 500ml there-necked flask, add 0.28g triethylene diamine, at 5 DEG C, react about 2 hours, obtained corresponding epoxy terminated linear compound.
Proceeding to 250g walking products therefrom in 500ml autoclave again, adding 2.0g palmityl trimethyl ammonium chloride, passing into CO
2gas reaches 1.2MPa to still internal pressure, is heated to 115 DEG C, and reaction 10h, obtain accordingly containing the linear compound of cyclocarbonate radical, productive rate is 90.5%.
Embodiment 5
By 250g molecular weight be 1000 polyoxyethylene glycol and 46g 2-Thiovanic acid drop into have in the 500ml four-hole boiling flask of water-and-oil separator, add 27ml benzene, 2.5g tosic acid, reflux, until esterification completes, obtained intermediate product end Thiovanic acid polyoxyethylene glycol (1000) ester.
Held by 143g Thiovanic acid polyoxyethylene glycol (1000) ester and 110g epoxy resin E-44 to drop in 500ml there-necked flask, add 1.0g trolamine, at 5 DEG C, react about 2 hours, obtained corresponding epoxy terminated linear compound.
Proceeding to 250g walking products therefrom in 500ml autoclave again, adding 2.0g tetraethylammonium bromide, passing into CO
2gas reaches 1.5MPa to still internal pressure, is heated to 120 DEG C, and reaction 8h, obtain accordingly containing the linear compound of cyclocarbonate radical, productive rate is 93%.
Embodiment 6
By 250g molecular weight be 1000 polyoxypropyleneglycol and 46g 2-Thiovanic acid drop into have in the 500ml four-hole boiling flask of water-and-oil separator, add 27ml benzene, 2.5g tosic acid, reflux, until esterification completes, obtained intermediate product end Thiovanic acid polyoxypropyleneglycol (1000) ester.
Held by 143g Thiovanic acid polyoxypropyleneglycol (1000) ester and 110g epoxy resin E-44 to drop in 500ml there-necked flask, add 1.0g trolamine, at 5 DEG C, react about 2 hours, obtained corresponding epoxy terminated linear compound.
Proceeding to 250g walking products therefrom in 500ml autoclave again, adding 2.0g Tetrabutyl amonium bromide, passing into CO
2gas reaches 1.5MPa to still internal pressure, is heated to 120 DEG C, and reaction 8h, obtain accordingly containing the linear compound of cyclocarbonate radical, productive rate is 92.5%.
Embodiment 7
Be the polyoxyethylene glycol of 400 by 100g molecular weight, 100g molecular weight be 400 polyoxyethylene glycol, 92g 2-Thiovanic acid drop into have in the 500ml four-hole boiling flask of water-and-oil separator, add 55ml toluene, 1.5g tosic acid, reflux, until esterification completes, obtained intermediate product end Thiovanic acid polyether Glycols (400) ester.
Held by 100g Thiovanic acid polyether Glycols (400) ester and 160g epoxy resin E-44 to drop in 500ml there-necked flask, add 1.5g trolamine, at 5 DEG C, react about 2 hours, obtained corresponding epoxy terminated linear compound.
Proceeding to 250g walking products therefrom in 500ml autoclave again, adding 2.0g Tetrabutyl amonium bromide, passing into CO
2gas reaches 1.5MPa to still internal pressure, is heated to 130 DEG C, and reaction 6h, obtain accordingly containing the linear compound of cyclocarbonate radical, productive rate is 94%.
Embodiment 8
Be the polyoxyethylene glycol of 400 by 100g molecular weight, 100g molecular weight be 400 polyoxyethylene glycol, 106g 3-thiohydracrylic acid drop into have in the 500ml four-hole boiling flask of water-and-oil separator, add 55ml toluene, 1.5g tosic acid, reflux, until esterification completes, obtained intermediate product end thiohydracrylic acid polyether Glycols (400) ester.
Held by 105g thiohydracrylic acid polyether Glycols (400) ester and 160g epoxy resin E-44 to drop in 500ml there-necked flask, add 1.5g trolamine, at 5 DEG C, react about 2 hours, obtained corresponding epoxy terminated linear compound.
Proceeding to 250g walking products therefrom in 500ml autoclave again, adding 2.0g Tetrabutyl amonium bromide, passing into CO
2gas reaches 1.5MPa to still internal pressure, is heated to 130 DEG C, and reaction 6h, obtain accordingly containing the linear compound of cyclocarbonate radical, productive rate is 93.7%.
Embodiment 9
Be the polyoxyethylene glycol of 200 by 100g molecular weight, 46g 2-Thiovanic acid, 53g 3-thiohydracrylic acid drop into have in the 500ml four-hole boiling flask of water-and-oil separator, add 55ml toluene, 1.5g tosic acid, reflux, until esterification completes, obtained intermediate product end mercaptan carboxylic acid polyoxyethylene glycol (200) ester.
Held by 90g mercaptan carboxylic acid's polyoxyethylene glycol (200) ester and 200g epoxy resin E-51 to drop in 500ml there-necked flask, add 1.0g trolamine, at 5 DEG C, react about 2 hours, obtained corresponding epoxy terminated linear compound.
Proceeding to 250g walking products therefrom in 500ml autoclave again, adding 2.0g Tetrabutyl amonium bromide, passing into CO
2gas reaches 1.5MPa to still internal pressure, is heated to 130 DEG C, and reaction 6h, obtain accordingly containing the linear compound of cyclocarbonate radical, productive rate is 94%.
Embodiment 10
End Thiovanic acid polyoxyethylene glycol (200) ester and the 170g epoxy resin NPEF-170 that get preparation in 87g embodiment 3 drop in 500ml there-necked flask, add 1.0g trolamine, react about 2 hours at 5 DEG C, obtained corresponding epoxy terminated linear compound.
Again upper step products therefrom is proceeded in 500ml autoclave, add 2.0g Tetrabutyl amonium bromide, pass into CO
2gas reaches 1.5MPa to still internal pressure, is heated to 110 DEG C, and reaction 6h, obtain accordingly containing the linear compound of cyclocarbonate radical, productive rate is 93%.
Claims (7)
1., containing a synthetic method for the linear compound of end-link carbonic acid ester base, comprise the steps:
(1) selected dibasic alcohol and end mercaptan carboxylic acid are had in the reactor of water-and-oil separator by the ratio input of the amount of 1:2, add water entrainer, take tosic acid as catalyzer, be heated to boiling, the water that reaction generates is isolated by water-and-oil separator, until esterification completes, obtained intermediate product end mercaptan carboxylic acid binary alcohol esters;
(2) take tertiary ammonium salt as catalyzer, the ratio that epoxy resin and end mercaptan carboxylic acid binary alcohol esters press the amount of 2:1 is dropped in four-hole bottle, reacts 2 hours at 5 DEG C, obtained epoxy terminated linear compound;
(3) take quaternary ammonium salt as catalyzer, epoxy terminated linear compound is dropped in autoclave, continues to pass into CO
2, be 110 ~ 130 DEG C in temperature of reaction, the reaction times is 6 ~ 10 hours; It is made to change linear compound containing end-link carbonic acid ester base into; Described diol component is selected from glycol ether, the molecular weight polyoxyethylene glycol between 200 ~ 1000g/mol or at least one in polyoxypropyleneglycol; Described epoxy resin is at least one in bisphenol f type epoxy resin NPEF-170, bisphenol A type epoxy resin E-44, E-51.
2., according to claim 1 containing the synthetic method of the linear compound of end-link carbonic acid ester base, it is characterized in that described end mercaptan carboxylic acid component is at least one in 2-Thiovanic acid, 3-thiohydracrylic acid.
3. according to claim 1 containing the synthetic method of linear compound of end-link carbonic acid ester base, it is characterized in that the consumption of described catalyzer tosic acid be reactant total mass 0.3% ~ 1% between.
4., according to claim 1 containing the synthetic method of linear compound of end-link carbonic acid ester base, it is characterized in that any one that described water entrainer is selected from benzene,toluene,xylene, its consumption is 2 ~ 3 times of water generation reaction quality.
5. according to claim 1 containing the synthetic method of the linear compound of end-link carbonic acid ester base, it is characterized in that described tertiary amine catalyst is any one in trolamine, triethylene diamine, N methyldiethanol amine, its consumption is 0.1% ~ 0.5% of reactant total mass.
6. according to claim 1 containing the synthetic method of the linear compound of end-link carbonic acid ester base, it is characterized in that the quaternary ammonium salt catalyzer described in step (3) is any one in tetraethylammonium bromide, Tetrabutyl amonium bromide, palmityl trimethyl ammonium chloride, its consumption is 0.5% ~ 1% of reactant total mass.
7. according to claim 1 containing the synthetic method of the linear compound of end-link carbonic acid ester base,
106g glycol ether and 184g 2-Thiovanic acid being dropped into has in the 500ml four-hole boiling flask of water-and-oil separator, add 75ml benzene, 0.9g tosic acid, reflux, until esterification completes, obtained intermediate product end Thiovanic acid glycol ether ester;
Held by 64g Thiovanic acid glycol ether ester and 220g epoxy resin E-44 to drop in 500ml there-necked flask, add 0.28g trolamine, react 2 hours at 5 DEG C, obtained corresponding epoxy terminated linear compound;
Proceeding to 250g walking products therefrom in 500ml autoclave again, adding 1.25g tetraethylammonium bromide, passing into CO
2gas reaches 1.5MPa to still internal pressure, is heated to 120 DEG C, and reaction 8h, obtain accordingly containing the linear compound of cyclocarbonate radical, productive rate is 95%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310316211.1A CN103360592B (en) | 2013-07-25 | 2013-07-25 | Synthetic method of cyclocarbonate-terminated linear compound |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310316211.1A CN103360592B (en) | 2013-07-25 | 2013-07-25 | Synthetic method of cyclocarbonate-terminated linear compound |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103360592A CN103360592A (en) | 2013-10-23 |
| CN103360592B true CN103360592B (en) | 2015-05-20 |
Family
ID=49362910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310316211.1A Expired - Fee Related CN103360592B (en) | 2013-07-25 | 2013-07-25 | Synthetic method of cyclocarbonate-terminated linear compound |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103360592B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102603702A (en) * | 2011-11-30 | 2012-07-25 | 黎明化工研究院 | Method for preparing end-ring carbonic acid polyester |
| CN103013322A (en) * | 2013-01-07 | 2013-04-03 | 中北大学 | Preparation method of epoxy non-isocyanate polyurethane heavy anti-corrosion coating |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003028644A2 (en) * | 2001-10-01 | 2003-04-10 | Eurotech, Ltd. | Preparation of oligomeric cyclocarbonates and their use in ionisocyanate or hybrid nonisocyanate polyurethanes |
| JP2011098897A (en) * | 2009-11-04 | 2011-05-19 | Jsr Corp | Cyclic carbonate and method for producing the same |
| FR2981931B1 (en) * | 2011-10-28 | 2014-07-04 | Gen Produits Ind S E G Soc D Expl | PROCESS FOR PREPARING A COMPOUND COMPRISING AT LEAST ONE BETA-HYDROXY-URETHANE PATTERN AND / OR AT LEAST ONE GAMMA-HYDROXY-URETHANE PATTERN. |
-
2013
- 2013-07-25 CN CN201310316211.1A patent/CN103360592B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102603702A (en) * | 2011-11-30 | 2012-07-25 | 黎明化工研究院 | Method for preparing end-ring carbonic acid polyester |
| CN103013322A (en) * | 2013-01-07 | 2013-04-03 | 中北大学 | Preparation method of epoxy non-isocyanate polyurethane heavy anti-corrosion coating |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103360592A (en) | 2013-10-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9067865B2 (en) | Etheramines and their use as intermediates for polymer synthesis | |
| JP6178394B2 (en) | Dicarbonate precursor, process for its production and use thereof | |
| EP2505601A1 (en) | Five-membered cyclocarbonate polysiloxane compound and process for preparation of same | |
| US7728175B1 (en) | Linear amine functionalized poly(trimethylene ether) compositions | |
| WO2019034470A1 (en) | Process for the manufacturing of a polymer with urethane groups | |
| CN109293911A (en) | A kind of preparation method of end silicone based polyether resin | |
| CN103275314A (en) | Preparation method of polymonosulfo-carbonate with regular chain structure | |
| CN102002157A (en) | Aromatic polyester modified polyether polyol and preparation method thereof | |
| CN115557845B (en) | Co-production method of N, N, N '-trimethyl-N' -hydroxyethyl bis (aminoethyl) ether and bis (dimethylaminoethyl) ether | |
| JP2018517737A (en) | Method for producing polyhedral oligomeric silsesquioxane | |
| KR102240983B1 (en) | Etheramines and their use as curatives or intermediates for polymer synthesis | |
| CN103360593B (en) | Cyclocarbonate-terminated linetype compound | |
| CN105153219A (en) | Organosilicone chain extender and application | |
| CN103360592B (en) | Synthetic method of cyclocarbonate-terminated linear compound | |
| CN101942096B (en) | Modified amino silicone oil and preparation method thereof | |
| CN109485847A (en) | A kind of non-isocyanate polyurea elastomer | |
| CN107641197B (en) | It is a kind of using carbon dioxide and 7-oxa-bicyclo[4.1.0 as the copolyreaction catalyst of monomer | |
| CN111100155A (en) | Is made of SiO2Synthesis method for directly preparing four-coordination siloxane and five-coordination siloxane | |
| CN110105540A (en) | A kind of preparation method of glycidyl ester type self curable epoxy resin | |
| KR20160073991A (en) | Etheramines with enhanced thermal stability and their use as curatives or intermediates for polymer synthesis | |
| CN114380994A (en) | Bio-based non-isocyanate polyurethane and preparation method thereof | |
| CN110256662B (en) | Preparation method of low-molecular-weight aliphatic polycarbonate polyol | |
| CN105885030A (en) | Method for preparing low molecular weight distribution polyether | |
| KR101187307B1 (en) | Method of preparing cationic surfactant having good solubility | |
| KR20150082281A (en) | Polymers of [4-(methylether)-1,3-dioxolane-2-one of polyether polyol] |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150520 Termination date: 20150725 |
|
| EXPY | Termination of patent right or utility model |