CN111019080A - Solvent-free polyurethane resin for clothing leather and preparation method thereof - Google Patents
Solvent-free polyurethane resin for clothing leather and preparation method thereof Download PDFInfo
- Publication number
- CN111019080A CN111019080A CN201911370746.0A CN201911370746A CN111019080A CN 111019080 A CN111019080 A CN 111019080A CN 201911370746 A CN201911370746 A CN 201911370746A CN 111019080 A CN111019080 A CN 111019080A
- Authority
- CN
- China
- Prior art keywords
- solvent
- parts
- polyurethane resin
- component
- clothing leather
- 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
- C08G18/08—Processes
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
- C08G18/12—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
-
- 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
- C08G18/4009—Two or more macromolecular compounds not provided for in one single group of groups C08G18/42 - C08G18/64
-
- 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
- C08G18/4825—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
- C08G18/4854—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
- C08G18/28—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
- C08G18/61—Polysiloxanes
-
- 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
- C08G18/6681—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/32 or C08G18/3271 and/or polyamines of C08G18/38
- C08G18/6685—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/32 or C08G18/3271 and/or polyamines of C08G18/38 with compounds of group C08G18/3225 or polyamines of C08G18/38
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyurethanes Or Polyureas (AREA)
- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
Abstract
The invention provides a solvent-free polyurethane resin for clothing leather, which is obtained by reacting a component A with a component B. The component A is obtained by the reaction of the following substances: polyisocyanate, hydroxyl-terminated polyether modified silicone oil, a blocking agent and a catalyst. The component B comprises the following substances: polyether polyol, polytetrahydrofuran ether polyol, micromolecular dihydric alcohol, micromolecular trihydric alcohol and micromolecular polyamine. The invention also provides a preparation method of the solvent-free polyurethane resin for clothing leather. The polyurethane resin has obviously improved film forming property and mechanical property, and is suitable for clothing leather.
Description
Technical Field
The invention relates to a solvent-free polyurethane resin for clothing leather. The invention also relates to a preparation method of the solvent-free polyurethane resin for clothing leather.
Background
Synthetic leather is a plastic article that mimics the composition and structure of natural leather (see leather) and serves as a substitute material therefor. The preparation method of the synthetic leather mainly comprises dry preparation and wet preparation. At present, in order to reduce pollution and energy consumption caused by the use and recovery of a solvent in the preparation process of synthetic leather, waterborne polyurethane and solvent-free polyurethane are researched. However, the bass layer and the intermediate layer of synthetic leather cannot use aqueous polyurethane resin at present, and for this situation, BAYER and other companies further develop solvent-free polyurethane, which has the greatest advantage of being very environment-friendly without any volatilization of organic solvent.
However, the existing solvent-free polyurethane has the defects of high reaction speed, difficult control and the like in the synthesis and use processes. Although a method of blocking isocyanate in advance and deblocking the isocyanate in a subsequent reaction is researched, the method has the problems that the film forming property is remarkably reduced, the mechanical property cannot be met and the like after the isocyanate and the polyol are polymerized and chain extended.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a solvent-free polyurethane resin for clothing leather and a preparation method thereof. The polyurethane resin has obviously improved film forming property and mechanical property.
According to an aspect of the present invention, there is provided a solvent-free polyurethane resin for clothing leather, which is obtained by reacting a component A and a component B,
the component A is obtained by the reaction of the following substances: polyisocyanate, double-end hydroxyl polyether modified silicone oil, a blocking agent and a catalyst;
the component B comprises the following substances: polyether polyol, polytetrahydrofuran ether polyol, micromolecular dihydric alcohol, micromolecular trihydric alcohol and micromolecular polyamine.
According to one embodiment of the invention, the weight ratio of each substance in the component A is as follows: 60-100 parts of polyisocyanate, 10-20 parts of hydroxyl-terminated polyether modified silicone oil, 3-10 parts of a blocking agent and 1-10 parts of a catalyst; the weight ratio of each substance in the component B is as follows: 20-40 parts of polyether polyol, 20-40 parts of polytetrahydrofuran ether polyol, 5-10 parts of micromolecular dihydric alcohol, 2-5 parts of micromolecular trihydric alcohol and 2-5 parts of micromolecular polyamine.
According to one embodiment of the invention, the molar ratio of cyanate groups in the polyisocyanate to hydroxyl groups in the polyether polyol and the polytetrahydrofuran ether polyol is from 1.5 to 1.7.
According to one embodiment of the invention, the polyisocyanate comprises one or more of toluene diisocyanate, diphenylmethane diisocyanate, polymethylene polyphenyl diisocyanate, hexamethylene diisocyanate, xylylene diisocyanate and isophorone diisocyanate.
According to one embodiment of the invention, the blocking agent comprises one or more of phenol, ethyl acetoacetate, ketoxime-based compounds, and acetylacetone.
According to one embodiment of the present invention, the polyether polyol is polypropylene glycol polyether polyol with a molecular weight of 800-1500, and the polytetrahydrofuran polyether polyol is polytetrahydrofuran ether glycol with a molecular weight of 1000-2000.
According to one embodiment of the invention, the small molecule diol is ethylene glycol.
According to one embodiment of the invention, the small molecule triol is glycerol
According to another aspect of the present invention, there is provided a method for preparing the above solvent-free polyurethane resin for clothing leather, comprising the steps of: (1) preparing component A, comprising: adding polyisocyanate, double-end hydroxyl polyether modified silicone oil, a catalyst and a blocking agent into a reaction container, and reacting at 60-90 ℃ to obtain blocked polysiloxane polyisocyanate; (2) preparing a polyurethane prepolymer:
adding the component A, polyether polyol and polytetrahydrofuran ether polyol into a reaction container, and reacting at 80-110 ℃ to obtain a polyurethane prepolymer; (3) chain extension reaction: and (3) adding micromolecule dihydric alcohol, micromolecule trihydric alcohol and micromolecule polyamine into the polyurethane prepolymer obtained in the step (2), heating to 60-80 ℃, and stirring for reaction to obtain the solvent-free polyurethane resin for clothing leather.
According to one embodiment of the invention, the reaction time of step (1) is 1 to 3 hours, the reaction time of step (2) is 2 to 4 hours and the reaction time of step (3) is 2 to 4 hours.
The solvent-free polyurethane resin for clothing leather and the preparation method thereof disclosed by the invention can obtain the following beneficial effects: (1) the polysiloxane chain segment block modified structure is introduced into polyurethane by utilizing the reaction of double-end hydroxyl polyether modified silicone oil and polyisocyanate, so that uneven foaming of the polyurethane can be prevented, and poor film forming property caused by overlarge local pores is avoided; (2) after the polyurethane film is formed, the organic silicon chain segments can be gathered to the surface of the film, and the polyurethane chain segments are gathered to the interior of the film, so that the mechanical property and the thermal stability of the obtained polyurethane film are both obviously improved.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
Preparation of component A:
adding 60 parts by weight of isophorone diisocyanate, 10 parts by weight of double-end hydroxyl polyether modified silicone oil, 1 part by weight of butyltin monthly silicate and 3 parts by weight of phenol into a reaction vessel, and reacting at 60 ℃ for 3 hours to obtain the blocked polysiloxane diisocyanate.
Preparing a polyurethane prepolymer:
70 parts by weight of the component A, 70 parts by weight of polypropylene glycol polyether polyol with molecular weight of 800 and 50 parts by weight of polytetrahydrofuran ether glycol with molecular weight of 1000 are added into a reaction vessel and reacted for 4 hours at 80 ℃ to obtain a polyurethane prepolymer.
Carrying out chain extension reaction:
adding 5 parts by weight of ethylene glycol, 2 parts by weight of glycerol and 2 parts by weight of diethyl toluenediamine into the polyurethane prepolymer, heating to 60 ℃, stirring and reacting for 4 hours to obtain the solvent-free polyurethane resin for clothing leather.
Example 2
Preparation of component A:
adding 80 parts by weight of isophorone diisocyanate, 15 parts by weight of double-end hydroxyl polyether modified silicone oil, 5 parts by weight of butyltin orthosilicate and 6 parts by weight of phenol into a reaction vessel, and reacting at 70 ℃ for 2 hours to obtain the blocked polysiloxane diisocyanate.
Preparing a polyurethane prepolymer:
100 parts by weight of component A, 80 parts by weight of polypropylene glycol polyether polyol with the molecular weight of 1200 and 70 parts by weight of polytetrahydrofuran ether glycol with the molecular weight of 1500 are added into a reaction vessel and reacted for 3 hours at 90 ℃ to obtain polyurethane prepolymer.
Carrying out chain extension reaction:
adding 8 parts by weight of ethylene glycol, 4 parts by weight of glycerol and 4 parts by weight of diethyl toluenediamine into the polyurethane prepolymer, heating to 70 ℃, stirring and reacting for 3 hours to obtain the solvent-free polyurethane resin for clothing leather.
Example 3
Preparation of component A:
100 parts by weight of isophorone diisocyanate, 20 parts by weight of double-end hydroxyl polyether modified silicone oil, 10 parts by weight of butyltin monthly silicate and 10 parts by weight of phenol are added into a reaction vessel and reacted for 1 hour at 90 ℃ to obtain the blocked polysiloxane diisocyanate.
Preparing a polyurethane prepolymer:
140 parts by weight of component A, 100 parts by weight of polypropylene glycol polyether polyol with molecular weight of 1500 and 80 parts by weight of polytetrahydrofuran ether glycol with molecular weight of 2000 are added into a reaction container, and the mixture reacts for 2 hours at 110 ℃ to obtain polyurethane prepolymer.
Carrying out chain extension reaction:
adding 10 parts by weight of ethylene glycol, 5 parts by weight of glycerol and 5 parts by weight of diethyl toluenediamine into the polyurethane prepolymer, heating to 80 ℃, stirring and reacting for 2 hours to obtain the solvent-free polyurethane resin for clothing leather.
Comparative example 1
Preparation of component A:
80 parts by weight of isophorone diisocyanate, 5 parts by weight of butyltin monthly silicate and 6 parts by weight of phenol were added to a reaction vessel and reacted at 70 ℃ for 2 hours to obtain blocked polysiloxane diisocyanate.
Preparing a polyurethane prepolymer:
100 parts by weight of component A, 80 parts by weight of polypropylene glycol polyether polyol with the molecular weight of 1200 and 70 parts by weight of polytetrahydrofuran ether glycol with the molecular weight of 1500 are added into a reaction vessel and reacted for 3 hours at 90 ℃ to obtain polyurethane prepolymer.
Carrying out chain extension reaction:
adding 8 parts by weight of ethylene glycol, 4 parts by weight of glycerol and 4 parts by weight of diethyl toluenediamine into the polyurethane prepolymer, heating to 70 ℃, stirring and reacting for 3 hours to obtain the solvent-free polyurethane resin for clothing leather.
The methods of heating, stirring and the like used in the above-mentioned production process are all methods which are commonly used in the art.
The viscosities of the polyurethanes prepared in examples 1 to 3 and comparative example 1 were measured at 25 ℃ using a rotary viscometer.
The polyurethanes prepared in examples 1 to 3 and comparative example 1 were formed into films according to GB/T8949-2008, and the tensile strength and elongation at break of the films were measured using a tensile machine at a tensile speed of 100 mm/min.
The polyurethanes prepared in examples 1 to 3 and comparative example 1 were applied to a base fabric, and after curing, the peel load of the synthetic leather intermediate layer was measured in accordance with GB/T8949-.
The technical performance indexes of the solvent-free polyurethane resin for clothing leather prepared in the above embodiments are shown in table 1:
TABLE 1
The test results show that the solvent-free polyurethane resin for clothing leather prepared by the preparation method solves the problems of poor film forming property and poor mechanical property of polyurethane prepared by the existing blocked polyisocyanate. The solvent-free polyurethane resin for clothing leather has excellent mechanical property, saves the use of organic solvent in wet and dry bonding procedures in the leather processing process, and effectively ensures the environmental protection of the clothing leather. Moreover, the synthetic leather manufactured by the resin has excellent moisture permeability and air permeability, and can be compared favorably with the conventional oily synthetic leather.
When isophorone diisocyanate in examples 1 to 3 was replaced with toluene diisocyanate, diphenylmethane diisocyanate, polymethylene polyphenyl diisocyanate, hexamethylene diisocyanate, or xylylene diisocyanate, and the R value was set to 1.5 to 1.7, a solvent-free polyurethane resin for clothing leather having excellent mechanical properties was obtained.
If the blocking agent in examples 1-3 is replaced by one or more of ethyl acetoacetate, ketoxime compound and acetylacetone, the solvent-free polyurethane resin for clothing leather with excellent mechanical property can be obtained.
The above-mentioned embodiments only express the embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.
Claims (10)
1. The solvent-free polyurethane resin for clothing leather is characterized by being obtained by reacting a component A with a component B,
the component A is obtained by the reaction of the following substances: polyisocyanate, double-end hydroxyl polyether modified silicone oil, a blocking agent and a catalyst;
the component B comprises the following substances: polyether polyol, polytetrahydrofuran ether polyol, micromolecular dihydric alcohol, micromolecular trihydric alcohol and micromolecular polyamine.
2. The solvent-free polyurethane resin for clothing leather as claimed in claim 1, wherein the weight ratio of the components in the component A is as follows: 60-100 parts of polyisocyanate, 10-20 parts of hydroxyl-terminated polyether modified silicone oil, 3-10 parts of a blocking agent and 1-10 parts of a catalyst; the weight ratio of each substance in the component B is as follows: 70-100 parts of polyether polyol, 50-80 parts of polytetrahydrofuran ether polyol, 5-10 parts of micromolecular dihydric alcohol, 2-5 parts of micromolecular trihydric alcohol and 2-5 parts of micromolecular polyamine.
3. The solvent-free polyurethane resin for clothing leather according to claim 1, wherein a molar ratio of the cyanate group in the polyisocyanate to the hydroxyl group in the polyether polyol and the polytetrahydrofuran ether polyol is 1.5 to 1.7.
4. The solvent-free polyurethane resin for clothing leather according to claim 1, wherein the polyisocyanate comprises one or more of toluene diisocyanate, diphenylmethane diisocyanate, polymethylene polyphenyl diisocyanate, hexamethylene diisocyanate, xylylene diisocyanate, and isophorone diisocyanate.
5. The solvent-free polyurethane resin for clothing leather according to claim 1, wherein the blocking agent comprises one or more of phenol, ethyl acetoacetate, ketoxime-based compounds and acetylacetone.
6. The solvent-free polyurethane resin for clothing leather as claimed in claim 1, wherein the polyether polyol is polypropylene glycol polyether polyol with molecular weight of 800-1500, and the polytetrahydrofuran polyether polyol is polytetrahydrofuran ether glycol with molecular weight of 1000-2000.
7. The solvent-free polyurethane resin for clothing leather according to claim 1, wherein the small molecule diol is ethylene glycol.
8. The solvent-free polyurethane resin for clothing leather according to claim 1, wherein the small molecule triol is glycerin.
9. A method for preparing the solvent-free polyurethane resin for clothing leather according to any one of claims 1 to 8, comprising the steps of:
(1) preparing component A, comprising:
adding polyisocyanate, double-end hydroxyl polyether modified silicone oil, a catalyst and a blocking agent into a reaction container, and reacting at 60-90 ℃ to obtain blocked polysiloxane polyisocyanate;
(2) preparing a polyurethane prepolymer:
adding the component A, polyether polyol and polytetrahydrofuran ether polyol into a reaction container, and reacting at 80-110 ℃ to obtain a polyurethane prepolymer;
(3) chain extension reaction:
and (3) adding micromolecule dihydric alcohol, micromolecule trihydric alcohol and micromolecule polyamine into the polyurethane prepolymer obtained in the step (2), heating to 60-80 ℃, and stirring for reaction to obtain the solvent-free polyurethane resin for clothing leather.
10. The process of claim 9, wherein the reaction time of step (1) is 1 to 3 hours, the reaction time of step (2) is 2 to 4 hours, and the reaction time of step (3) is 2 to 4 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911370746.0A CN111019080A (en) | 2019-12-26 | 2019-12-26 | Solvent-free polyurethane resin for clothing leather and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911370746.0A CN111019080A (en) | 2019-12-26 | 2019-12-26 | Solvent-free polyurethane resin for clothing leather and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111019080A true CN111019080A (en) | 2020-04-17 |
Family
ID=70214074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911370746.0A Pending CN111019080A (en) | 2019-12-26 | 2019-12-26 | Solvent-free polyurethane resin for clothing leather and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111019080A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115894938A (en) * | 2021-09-30 | 2023-04-04 | 浙江华峰新材料有限公司 | Carbon hydroxyl organic silicon polyether copolymer, polyurethane resin and preparation method thereof |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3730780A1 (en) * | 1987-09-12 | 1989-03-23 | Stockhausen Chem Fab Gmbh | Aqueous solution and dispersions of polysiloxane-containing polyurethane ionomers, a process for their preparation, and their use for the production of coatings |
| CN101092538A (en) * | 2006-06-23 | 2007-12-26 | 宜兴环保科技工业园新光化工厂 | Waterproof, humidity permeable resin in aliphatic series for overcoating synthetic leather, manufactureing method of half-advanced polymerization |
| CN102174167A (en) * | 2011-02-17 | 2011-09-07 | 陈华 | Organic silicon modified polyurethane resin for synthetic leather and preparation method thereof |
| CN102604026A (en) * | 2011-02-17 | 2012-07-25 | 浙江深蓝轻纺科技有限公司 | Organic silicon-modified polyurethane resin for synthetic leather and preparation method thereof |
| CN105330815A (en) * | 2015-11-13 | 2016-02-17 | 浙江华峰合成树脂有限公司 | Polyurethane nubuck resin for high-resilience high-velvet-feeling clothing leather and preparation method of thereof |
| CN106519179A (en) * | 2016-10-21 | 2017-03-22 | 浙江华峰合成树脂有限公司 | Polyurethane resin used for high-density nubuck and preparation method thereof |
| CN107759759A (en) * | 2017-11-07 | 2018-03-06 | 陕西科技大学 | A kind of preparation method and application of use for synthetic leather enclosed type no-solvent polyurethane |
| CN108276896A (en) * | 2018-02-28 | 2018-07-13 | 华南理工大学 | A kind of moisture-curable leather finishing agent and preparation method thereof |
| CN108570137A (en) * | 2018-04-09 | 2018-09-25 | 浙江华峰合成树脂有限公司 | Enclosed type high temperature resistant integrative leather solvent-free polyurethane resin and preparation method and application |
| CN108659202A (en) * | 2018-05-23 | 2018-10-16 | 广东德美精细化工集团股份有限公司 | A kind of solvent-free Waterborne Blocked Polyurethane and preparation method |
| CN109898343A (en) * | 2019-02-26 | 2019-06-18 | 合肥安利聚氨酯新材料有限公司 | Super soft use for synthetic leather no-solvent polyurethane intermediate layer resin of one kind and preparation method thereof |
| CN110498900A (en) * | 2019-09-10 | 2019-11-26 | 浙江华峰合成树脂有限公司 | High black color developing leather polyurethane resin and preparation method thereof |
-
2019
- 2019-12-26 CN CN201911370746.0A patent/CN111019080A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3730780A1 (en) * | 1987-09-12 | 1989-03-23 | Stockhausen Chem Fab Gmbh | Aqueous solution and dispersions of polysiloxane-containing polyurethane ionomers, a process for their preparation, and their use for the production of coatings |
| CN101092538A (en) * | 2006-06-23 | 2007-12-26 | 宜兴环保科技工业园新光化工厂 | Waterproof, humidity permeable resin in aliphatic series for overcoating synthetic leather, manufactureing method of half-advanced polymerization |
| CN102174167A (en) * | 2011-02-17 | 2011-09-07 | 陈华 | Organic silicon modified polyurethane resin for synthetic leather and preparation method thereof |
| CN102604026A (en) * | 2011-02-17 | 2012-07-25 | 浙江深蓝轻纺科技有限公司 | Organic silicon-modified polyurethane resin for synthetic leather and preparation method thereof |
| CN105330815A (en) * | 2015-11-13 | 2016-02-17 | 浙江华峰合成树脂有限公司 | Polyurethane nubuck resin for high-resilience high-velvet-feeling clothing leather and preparation method of thereof |
| CN106519179A (en) * | 2016-10-21 | 2017-03-22 | 浙江华峰合成树脂有限公司 | Polyurethane resin used for high-density nubuck and preparation method thereof |
| CN107759759A (en) * | 2017-11-07 | 2018-03-06 | 陕西科技大学 | A kind of preparation method and application of use for synthetic leather enclosed type no-solvent polyurethane |
| CN108276896A (en) * | 2018-02-28 | 2018-07-13 | 华南理工大学 | A kind of moisture-curable leather finishing agent and preparation method thereof |
| CN108570137A (en) * | 2018-04-09 | 2018-09-25 | 浙江华峰合成树脂有限公司 | Enclosed type high temperature resistant integrative leather solvent-free polyurethane resin and preparation method and application |
| CN108659202A (en) * | 2018-05-23 | 2018-10-16 | 广东德美精细化工集团股份有限公司 | A kind of solvent-free Waterborne Blocked Polyurethane and preparation method |
| CN109898343A (en) * | 2019-02-26 | 2019-06-18 | 合肥安利聚氨酯新材料有限公司 | Super soft use for synthetic leather no-solvent polyurethane intermediate layer resin of one kind and preparation method thereof |
| CN110498900A (en) * | 2019-09-10 | 2019-11-26 | 浙江华峰合成树脂有限公司 | High black color developing leather polyurethane resin and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 兰金鹏: "双组份无溶剂聚氨酯反应过程的调控研究", 《中国优秀硕士学位论文全文数据库工程科技I辑》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115894938A (en) * | 2021-09-30 | 2023-04-04 | 浙江华峰新材料有限公司 | Carbon hydroxyl organic silicon polyether copolymer, polyurethane resin and preparation method thereof |
| CN115894938B (en) * | 2021-09-30 | 2024-02-02 | 浙江华峰新材料有限公司 | Carbon hydroxyl organic silicon polyether copolymer, polyurethane resin and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7241356B2 (en) | Composite structure with one or several polyurethane layers, method for their manufacture and use thereof | |
| CN109021906B (en) | Solvent-free polyurethane adhesive layer resin for football leather and preparation method and application thereof | |
| US3681125A (en) | Process for the production of microporous sheet structures | |
| CN108517029B (en) | Non-yellowing modified solvent-free polyurethane interlayer resin for soft synthetic leather and preparation method and application thereof | |
| CN105968303B (en) | Preparation method of water-based epoxy resin curing agent | |
| CN112457462A (en) | Non-ionic waterborne polyurethane and preparation method and application thereof | |
| CN108912300B (en) | Solvent-resistant polyurethane elastomer and preparation method thereof | |
| JP2012529541A5 (en) | ||
| WO2021022470A1 (en) | One-component type polyurethane prepolymer composition | |
| HU193506B (en) | Method for producing buffed leather imitations of polyurethane base by matrix process | |
| CN112812727B (en) | Long-holding-viscosity aqueous polyurethane adhesive and preparation method thereof | |
| CN111019080A (en) | Solvent-free polyurethane resin for clothing leather and preparation method thereof | |
| CN109762459B (en) | Photo-reversible hydrophobic self-repairing solvent-free polyurethane and preparation method thereof | |
| KR102271145B1 (en) | Isocyanate prepolymer, moisture-curing polyurethane and eco-friendly adhesive composition comprising the same | |
| CN116143994B (en) | Aqueous organosilicon modified polyurethane dispersoid, preparation method thereof, synthetic leather surface layer containing aqueous organosilicon modified polyurethane dispersoid and luggage leather | |
| CN103562254A (en) | Polyurethane polymers | |
| WO2016036815A1 (en) | Polyurethane mats | |
| CN112703215B (en) | Polyurethane and method for producing polyurethane | |
| AU5007801A (en) | Coating composition | |
| CN115572365B (en) | Preparation method and application of crosslinkable polyurethane coating | |
| CN112689647B (en) | Polyurethane cast elastomer based on poly (butylene oxide) polyol and method for preparing polyurethane cast elastomer | |
| WO2019060681A1 (en) | Solvent free liquid moisture curable polyurethane compositions with long open times and fast cure rates | |
| KR20130105407A (en) | Method for producing polyurethane foam seat, polyurethane foam seat and leathery sheet-shaped article | |
| Korotkova et al. | Comparison of the characteristics of polyurethane elastomers based on DMC-and traditional polyethers | |
| HUT51653A (en) | Process for producing porous polyurethane structures and for combining them with fibre, with fibre-based and other materials |
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: 20200417 |
|
| RJ01 | Rejection of invention patent application after publication |