CN106866927A - Enhanced water resistance clear prepolymer and preparation method thereof - Google Patents
Enhanced water resistance clear prepolymer and preparation method thereof Download PDFInfo
- Publication number
- CN106866927A CN106866927A CN201710104315.4A CN201710104315A CN106866927A CN 106866927 A CN106866927 A CN 106866927A CN 201710104315 A CN201710104315 A CN 201710104315A CN 106866927 A CN106866927 A CN 106866927A
- Authority
- CN
- China
- Prior art keywords
- water resistance
- enhanced water
- resistance clear
- preparation
- ppg
- 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.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6666—Compounds of group C08G18/48 or C08G18/52
- C08G18/667—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/6674—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
- C08G18/3203—Polyhydroxy compounds
- C08G18/3206—Polyhydroxy compounds aliphatic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4804—Two or more polyethers of different physical or chemical nature
- C08G18/4808—Mixtures of two or more polyetherdiols
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4804—Two or more polyethers of different physical or chemical nature
- C08G18/4812—Mixtures of polyetherdiols with polyetherpolyols having at least three hydroxy groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4825—Polyethers containing two hydroxy groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4829—Polyethers containing at least three hydroxy groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4833—Polyethers containing oxyethylene units
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4854—Polyethers containing oxyalkylene groups having four carbon atoms in the alkylene group
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/75—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic
- C08G18/751—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring
- C08G18/752—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group
- C08G18/753—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group containing one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group having a primary carbon atom next to the isocyanate or isothiocyanate group
- C08G18/755—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group containing one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group having a primary carbon atom next to the isocyanate or isothiocyanate group and at least one isocyanate or isothiocyanate group linked to a secondary carbon atom of the cycloaliphatic ring, e.g. isophorone diisocyanate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
- C08L75/08—Polyurethanes from polyethers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/08—Polyurethanes from polyethers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/10—Transparent films; Clear coatings; Transparent materials
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
The invention belongs to polyurethane-modified technical field, and in particular to a kind of enhanced water resistance clear prepolymer and preparation method thereof.Described enhanced water resistance clear prepolymer, is prepared from the following raw materials in parts by weight：100~200 parts of PPG A；80~160 parts of PPG B；2~15 parts of isocyanates；10~40 parts of chain extender；0.3~0.8 part of catalyst；35~50 parts of organic solvent.The present invention adds aliphatic isocyanates in formula, complex role between each component, the enhanced water resistance clear prepolymer good stability of preparation, and not easy to change, the product transparency is good, disclosure satisfy that client to the requirement in terms of colour transparency；Its water resistance is improve by being modified to it, excellent combination property, safety and environmental protection can be used in surface lacquer, protective jacket, the outdoor decoration field of hydrolysis；Preparation method is simple and easy to apply, it is easy to accomplish.
Description
Technical field
The invention belongs to polyurethane-modified technical field, and in particular to a kind of enhanced water resistance clear prepolymer and its preparation side
Method.
Background technology
Hydrolysis resistant polyurethane is a kind of with high-performance, safety, non-harmful elite clone.It has been widely used as surface
Paint, leather finishing agent, outdoor decoration and electronic material protection etc., and application field also constantly expanding.Because polyurethane is resistance to
Water-disintegrable to receive much concern, the developmental research of high performance water resistance polyurethane has turned into hot subject.
The content of the invention
In view of the shortcomings of the prior art, it is an object of the invention to provide a kind of enhanced water resistance clear prepolymer, with stabilization
Property good, not easy to change, transparent good, excellent combination property, safety and environmental protection the characteristics of；It is simple and easy to apply present invention simultaneously provides its
Preparation method.
Enhanced water resistance clear prepolymer of the present invention, is prepared from the following raw materials in parts by weight：
Wherein：
Described PPG A is with propane diols or trimethylolpropane as initiator, with expoxy propane or epoxy second
Alkane reaction is obtained, and number-average molecular weight is 400~4000, and hydroxyl value is 35~380 PPG；
Described PPG B is polytetramethylene ether diol (PTMEG).
Described isocyanates is IPDI (IPDI).
Described chain extender is small molecule chain extender 1,4- butanediols.
Described catalyst is organo-bismuth class catalyst.
Described organic solvent is N,N-dimethylformamide.
The preparation method of described enhanced water resistance clear prepolymer, comprises the following steps：
(1) PPG A and PPG B are well mixed and are dehydrated, obtain dehydrated material；
(2) to adding catalyst, isocyanates to be reacted in dehydrated material, primary prepolymer is obtained；
(3) to chain extender reaction is added in primary prepolymer, performed polymer is obtained；
(4) to adding organic solvent to react in performed polymer, enhanced water resistance clear prepolymer product is obtained.
Wherein：
In step (1), described mixing temperature is 50~60 DEG C, and dehydration temperaturre is 115~125 DEG C, and dewatering time is 2.5
~3.5h, dehydration to moisture is less than 0.05%.
In step (2), described reaction temperature is 80~90 DEG C, and the reaction time is 2.5~3.5h.
In step (3), described reaction temperature is 80~90 DEG C, and the reaction time is 1~2h.
In step (4), described reaction temperature is 75~85 DEG C, and the reaction time is 2~3h.
Compared with prior art, beneficial effects of the present invention are as follows：
(1) present invention aliphatic isocyanates are added in formula, complex role between each component, preparation it is high water-fast
Property clear prepolymer good stability, not easy to change, the product transparency is good, in terms of disclosure satisfy that client to colour transparency will
Ask.Its water resistance is improve by being modified to it, excellent combination property, safety and environmental protection can be used in the surface lacquer of hydrolysis, prevent
Sheath, outdoor decoration field.
(2) prepolymer hydrolytic resistance of the invention is significantly increased, and is found by being contrasted with common performed polymer, its hydrolysis
Time can extend 1.5 times, and hydrolysis rate is slow.
(3) preferably, bubble-free is remained prepolymer transparency of the invention.With the contrast of common performed polymer, difference is in the sunlight
Irradiation 24h, 48h, 72h, one week, common performed polymer starts that slightly yellow or pink colour is presented after 24h is irradiated, and changes colour after 48h tight
Weight, prepolymer of the invention does not have significant change yet, and Coloring Time can improve 2~3 times, when effectively keeping transparency extension discoloration
Between.
(4) preparation method of the invention is simple and easy to apply, it is easy to accomplish.
Specific embodiment
With reference to embodiment, the present invention will be further described.
Embodiment 1
Described enhanced water resistance clear prepolymer, is prepared from the following raw materials in parts by weight：
Wherein, PPG A is that, with propane diols as initiator, and obtained in propylene oxide reaction, number-average molecular weight is
400, hydroxyl value is 35 PPG.
Its preparation method is as follows：
(1) PPG A and PTMEG is uniformly mixed at 50 DEG C, and is warming up to 115 DEG C of vacuum dehydrations
2.5h；
(2) 80 DEG C are cooled to after dehydration is qualified, add organo-bismuth class catalyst to react 2.5h with IPDI；
(3) add BDO in continuing to react 1.0h at 80 DEG C, performed polymer is obtained；
(4) 2h is reacted in continuation at adding 75 DEG C of DMF, blowing of lowering the temperature, and obtains enhanced water resistance clear prepolymer
Product.
Embodiment 2
Described enhanced water resistance clear prepolymer, is prepared from the following raw materials in parts by weight：
Wherein, PPG A is that, with trimethylolpropane as initiator, with obtained in reacting ethylene oxide, number is divided equally
Son amount is 2200, and hydroxyl value is 205 PPG.
Its preparation method is as follows：
(1) PPG A and PTMEG is uniformly mixed at 60 DEG C, and is warming up to 120 DEG C of vacuum dehydration 3h；
(2) 85 DEG C are cooled to after dehydration is qualified, add organo-bismuth class catalyst to react 3h with IPDI；
(3) add Isosorbide-5-Nitrae butanediol in continuing to react 1.5h at 85 DEG C, performed polymer is obtained；
(4) 2h is reacted in continuation at adding 80 DEG C of DMF, blowing of lowering the temperature, and obtains enhanced water resistance clear prepolymer
Product.
Embodiment 3
Described enhanced water resistance clear prepolymer, is prepared from the following raw materials in parts by weight：
Wherein, PPG A is that, with propane diols as initiator, and obtained in reacting ethylene oxide, number-average molecular weight is
4000, hydroxyl value is 380 PPG.
Its preparation method is as follows：
(1) PPG A and PTMEG is uniformly mixed at 55 DEG C, and is warming up to 125 DEG C of vacuum dehydrations
3.5h；
(2) 90 DEG C are cooled to after dehydration is qualified adds organo-bismuth class catalyst to react 3.5h with IPDI；
(3) add BDO in continuing to react 2h at 90 DEG C, performed polymer is obtained；
(4) 2h is reacted in continuation at adding 80 DEG C of DMF, blowing of lowering the temperature, and obtains enhanced water resistance clear prepolymer
Product.
5% water is poured on the enhanced water resistance clear prepolymer product and resistance to without other of embodiment 1-3 preparations respectively
On the common commercially available prepolymer of two kinds of different molecular weights of aqueous stability composition, its initial hydrolysis time is recorded, be shown in Table 1.
As reference between comparing when prepolymer is without under conditions of other water resistance stability compositions with the initial reaction of prepolymer and water.Its
In, the molecular weight of commercially available prepolymer 1 is 400 or so, and the molecular weight of commercially available prepolymer 2 is 2000 or so.
The initial hydrolysis time of table 1
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Commercially available prepolymer 1 | Commercially available prepolymer 2 | |
| Initial hydrolysis time/point | 142 | 134 | 112 | 83 | 90 |
Respectively by embodiment 1-3 prepare enhanced water resistance clear prepolymer product with without other water resistance stability into
The common commercially available prepolymer of two kinds of different molecular weights being divided to irradiates 24h, 48h, 72h, one week in the sunlight, observes it and becomes pornographic
Condition, is specifically shown in Table 2.Wherein, the molecular weight of commercially available prepolymer 1 is 400 or so, and the molecular weight of commercially available prepolymer 2 is 2000 or so.
The discoloration of table 2
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Commercially available prepolymer 1 | Commercially available prepolymer 2 | |
| 24h | 0 | 0 | 0 | Pale pink | 10APHA |
| 48h | 0 | 0 | 0 | 10-20APHA | 10-20APHA |
| 72h | 10APHA | 0 | 10APHA | 20APHA | 30APHA |
| 1 week | 10-20APHA | 10-20APHA | 20APHA | 20-30APHA | 30APHA |
Can be obtained by table 2, common commercially available prepolymer starts that slightly yellow or pink colour is presented after 24h is irradiated, changed colour after 48h tight
Weight, prepolymer of the invention does not have significant change yet, and Coloring Time can improve 2~3 times, when effectively keeping transparency extension discoloration
Between.
Claims (10)
1. a kind of enhanced water resistance clear prepolymer, it is characterised in that：It is prepared from the following raw materials in parts by weight：
Wherein：
Described PPG A be with propane diols or trimethylolpropane as initiator, it is anti-with expoxy propane or oxirane
Should be obtained, number-average molecular weight is 400~4000, and hydroxyl value is 35~380 PPG；
Described PPG B is polytetramethylene ether diol.
2. enhanced water resistance clear prepolymer according to claim 1, it is characterised in that：Described isocyanates is different Fo Er
Ketone diisocyanate.
3. enhanced water resistance clear prepolymer according to claim 1, it is characterised in that：Described chain extender is 1,4- fourths two
Alcohol.
4. enhanced water resistance clear prepolymer according to claim 1, it is characterised in that：Described catalyst is organo-bismuth class
Catalyst.
5. enhanced water resistance clear prepolymer according to claim 1, it is characterised in that：Described organic solvent is N, N- bis-
NMF.
6. the preparation method of any described enhanced water resistance clear prepolymers of a kind of claim 1-5, it is characterised in that：Including with
Lower step：
(1) PPG A and PPG B are well mixed and are dehydrated, obtain dehydrated material；
(2) to adding catalyst, isocyanates to be reacted in dehydrated material, primary prepolymer is obtained；
(3) to chain extender reaction is added in primary prepolymer, performed polymer is obtained；
(4) to adding organic solvent to react in performed polymer, enhanced water resistance clear prepolymer product is obtained.
7. the preparation method of enhanced water resistance clear prepolymer according to claim 6, it is characterised in that：In step (1), institute
The mixing temperature stated is 50~60 DEG C, and dehydration temperaturre is 115~125 DEG C, and dewatering time is 2.5~3.5h, is dehydrated small to moisture
In 0.05%.
8. the preparation method of enhanced water resistance clear prepolymer according to claim 6, it is characterised in that：In step (2), institute
The reaction temperature stated is 80~90 DEG C, and the reaction time is 2.5~3.5h.
9. the preparation method of enhanced water resistance clear prepolymer according to claim 6, it is characterised in that：In step (3), institute
The reaction temperature stated is 80~90 DEG C, and the reaction time is 1~2h.
10. the preparation method of enhanced water resistance clear prepolymer according to claim 6, it is characterised in that：In step (4),
Described reaction temperature is 75~85 DEG C, and the reaction time is 2~3h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710104315.4A CN106866927A (en) | 2017-02-24 | 2017-02-24 | Enhanced water resistance clear prepolymer and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710104315.4A CN106866927A (en) | 2017-02-24 | 2017-02-24 | Enhanced water resistance clear prepolymer and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106866927A true CN106866927A (en) | 2017-06-20 |
Family
ID=59167713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710104315.4A Pending CN106866927A (en) | 2017-02-24 | 2017-02-24 | Enhanced water resistance clear prepolymer and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106866927A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111978851A (en) * | 2020-08-31 | 2020-11-24 | 荆晓东 | High-temperature-resistant and water-resistant waterborne polyurethane coating and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101402716A (en) * | 2008-05-31 | 2009-04-08 | 周建明 | Mixed prepolymer of solidifying agent methyl diphenylene diisocyanate and 1,6-hexamethylene diisocyanate |
| CN101514269A (en) * | 2009-03-25 | 2009-08-26 | 宁波万华聚氨酯有限公司 | Dicyclohexylmethylmethane-4,4'-diisocyanate prepolymer used for paint curing agent and preparation method thereof |
| CN104140515A (en) * | 2014-06-26 | 2014-11-12 | 嘉兴禾欣化学工业有限公司 | Preparation method of high-folding-resistance polyurethane resin for synthetic leather |
| CN105348475A (en) * | 2015-10-16 | 2016-02-24 | 广东大盈化工有限公司 | High-frequency laminating yellowing-free polyurethane fabric resin for white clothing leather and preparation method thereof |
-
2017
- 2017-02-24 CN CN201710104315.4A patent/CN106866927A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101402716A (en) * | 2008-05-31 | 2009-04-08 | 周建明 | Mixed prepolymer of solidifying agent methyl diphenylene diisocyanate and 1,6-hexamethylene diisocyanate |
| CN101514269A (en) * | 2009-03-25 | 2009-08-26 | 宁波万华聚氨酯有限公司 | Dicyclohexylmethylmethane-4,4'-diisocyanate prepolymer used for paint curing agent and preparation method thereof |
| CN104140515A (en) * | 2014-06-26 | 2014-11-12 | 嘉兴禾欣化学工业有限公司 | Preparation method of high-folding-resistance polyurethane resin for synthetic leather |
| CN105348475A (en) * | 2015-10-16 | 2016-02-24 | 广东大盈化工有限公司 | High-frequency laminating yellowing-free polyurethane fabric resin for white clothing leather and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111978851A (en) * | 2020-08-31 | 2020-11-24 | 荆晓东 | High-temperature-resistant and water-resistant waterborne polyurethane coating and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107353394B (en) | Coating, polyurethane and preparation method thereof | |
| CN108676144B (en) | Water-proof moisture-permeable aqueous polyurethane dispersoid and preparation method and application thereof | |
| CN104892891B (en) | The aqueous polyurethane dispersion emulsion and preparation method thereof of high alcohol resistance, color inhibition | |
| CN103130977B (en) | Polyurethane polyol dispersion of a kind of aqueous wood lacquer with double components and preparation method thereof | |
| CN105732938B (en) | A kind of preparation method of polyester polyether type aqueous polyurethane leather finishing agent | |
| CN105199073B (en) | A kind of environmentally friendly fluorescence aqueous polyurethane and preparation method thereof | |
| CN109456457A (en) | It is used to prepare the sponge material and preparation method thereof of color inhibition cotton pads | |
| CN111116859A (en) | Preparation method of antibacterial modified waterborne polyurethane | |
| CN107417874A (en) | A kind of end-sealed type double component solvent-free waterproof moisture-penetrating urethane resin and preparation method thereof | |
| CN106866927A (en) | Enhanced water resistance clear prepolymer and preparation method thereof | |
| CN108948314A (en) | A kind of waterborne polyurethane resin and preparation method thereof for woodcarving surface treatment | |
| CN109811557A (en) | A kind of high-performance environment-friendly woven fabric automobile leather and preparation method thereof | |
| CN112593419A (en) | Preparation method of water-based low-temperature printing environment-friendly polyurethane synthetic leather | |
| CN105482054A (en) | Modified polyurethane resin and preparation method thereof | |
| CN105019248B (en) | The preparation method of cationoid reaction type environment-friendlyfabric fabric stiffening agent | |
| CN102766396A (en) | Waterborne polyurethane gloss paint for finishing shoe materials | |
| CN109265721A (en) | A kind of non-toluene environment-friendly type KPU inorganic agent and preparation method thereof | |
| CN110818880B (en) | Solvent type polyurethane resin, preparation method thereof and fluorine-free clothes with lotus leaf effect | |
| CN112878058A (en) | Polyurethane graphene finishing agent and graphene fabric preparation method | |
| CN104211898B (en) | A kind of Amino End Group aqueous pu dispersions and preparation method thereof | |
| CN107857869B (en) | Aqueous polyurethane and its preparation method and application | |
| CN103525078B (en) | A kind of footwear leather environment-friendly type solvent-free foaming bed material and preparation method thereof | |
| CN114316202A (en) | Ultraviolet-curing aqueous polyurethane acrylate emulsion and preparation method thereof | |
| CN107793547A (en) | A kind of silane coupler modifying aqueous polyurethan plastics and preparation method thereof | |
| CN106928829A (en) | A kind of Aqueous Polyurethane Leather Finishing Agent preparation method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170620 |
|
| RJ01 | Rejection of invention patent application after publication |