CN112679650A - Amphoteric synthetic fat liquor, preparation method and application thereof - Google Patents
Amphoteric synthetic fat liquor, preparation method and application thereof Download PDFInfo
- Publication number
- CN112679650A CN112679650A CN202011535261.5A CN202011535261A CN112679650A CN 112679650 A CN112679650 A CN 112679650A CN 202011535261 A CN202011535261 A CN 202011535261A CN 112679650 A CN112679650 A CN 112679650A
- Authority
- CN
- China
- Prior art keywords
- parts
- fat liquor
- amphoteric synthetic
- product
- 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.)
- Granted
Links
Landscapes
- Treatment And Processing Of Natural Fur Or Leather (AREA)
Abstract
The invention provides an amphoteric synthetic fat liquor, a preparation method and application thereof, and relates to the technical field of leather chemical industry. The invention provides an amphoteric synthetic fat liquor, which comprises the following raw materials in parts by weight: 50-300 parts of hydroxyl organic amine; 50-400 parts of maleic anhydride; 50-500 parts of a long-chain vinyl compound; 5-30 parts of an acidic catalyst; 5-30 parts of an initiator; 150-2000 parts of water. The amphoteric synthetic fat liquor provided by the invention has the characteristics of stable property and difficult deterioration, has the characteristics of anionic fat liquor and cationic fat liquor, can have stronger binding force with leather collagen fiber, has good functions of surface fat liquor and internal fat liquor, gives leather good softness and comfortable hand feeling, and can achieve better effect only by using less fat liquor.
Description
Technical Field
The invention relates to the technical field of leather chemical industry, in particular to an amphoteric synthetic fat liquor, a preparation method and application thereof.
Background
The greasing is a key process in the leather production, and the crust leather is greased reasonably and properly to absorb a proper amount of greasing materials, recover the original softness and elasticity of the crust leather, prevent the leather from being stiff and cracking and endow the leather with certain service performance. In addition, through the greasing, the tensile strength, the toughness, the elongation, the leather yield and the like of the leather are improved to some extent, meanwhile, the water resistance is obviously improved, and the leather is endowed with good hand feeling.
Most of the common leather fatting agents are emulsion prepared by emulsifying natural animal and vegetable oil through an emulsifier, or have self-emulsifying capacity through chemical modification, common modification modes comprise sulfation, oxidative sulfitation, phosphorylation or alcoholysis re-esterification, and the like, the fatting agents mainly take anions, and other chemical materials used by the leather mainly take anions, so that the binding force between the anion fatting agents and other anion materials is not high, the anion fatting agents are not easily attached to the inside of the leather, and the utilization rate is low. Moreover, natural oil is easy to generate phenomena such as rancidity, hydrolysis and the like, more antioxidants are needed, and the cost is increased.
Disclosure of Invention
The invention aims to provide an amphoteric synthetic fat liquor, a preparation method and application thereof, the amphoteric synthetic fat liquor provided by the invention has the characteristics of stable property and difficult deterioration, and simultaneously has the characteristics of anionic fat liquor and cationic fat liquor, so that the amphoteric synthetic fat liquor not only has stronger binding force with collagen fibers of leather, but also has good functions of surface fat liquor and internal fat liquor, and gives the leather good softness and comfortable hand feeling, and the better effect can be achieved only by using less fat liquor.
In order to achieve the above object, the present invention provides the following technical solutions:
the invention provides an amphoteric synthetic fat liquor, which comprises the following raw materials in parts by weight:
50-300 parts of hydroxyl organic amine;
50-400 parts of maleic anhydride;
50-500 parts of a long-chain vinyl compound;
5-30 parts of an acidic catalyst;
5-30 parts of an initiator;
150-2000 parts of water.
Preferably, the hydroxy organic amine comprises one or more of N, N-Bis (2-hydroxyethyl) ethylenediamine, N' -tetrahydroxyethylethylenediamine, 2-amino-2-methyl-1-propanol, and N, N-dimethylethanolamine.
Preferably, the long chain vinyl compound comprises one or more of carboxymethyloctadecyl methyl diallylammonium chloride, hexadecylmethyl diallylammonium chloride, octadecyl methyl diallylammonium chloride, tetraallylammonium chloride, hexadecyl acrylate and octadecyl acrylate.
Preferably, the acidic catalyst is p-toluenesulfonic acid, a solid acid catalyst or concentrated sulfuric acid.
Preferably, the initiator comprises one or more of azobisisobutyronitrile, azobisisoheptonitrile, benzoyl peroxide, t-butyl hydroperoxide, t-butyl peroxybenzoate, potassium persulfate, sodium persulfate, and ammonium persulfate.
The invention provides a preparation method of the amphoteric synthetic fat liquor, which comprises the following steps:
mixing hydroxyl organic amine and maleic anhydride, and carrying out amidation reaction to obtain an amidation product;
mixing the amidation product with an acidic catalyst, and carrying out esterification reaction to obtain an esterification product;
mixing the esterification product, a long-chain vinyl compound and an initiator, and carrying out vinyl polymerization reaction to obtain a polymerization product;
and mixing the polymerization product with water, pre-emulsifying, and saponifying the obtained pre-emulsified system to obtain the amphoteric synthetic fat liquor.
Preferably, the temperature of the amidation reaction is 30-80 ℃ and the time is 2-6 h.
Preferably, the temperature of the esterification reaction is 100-150 ℃ and the time is 2-6 h.
Preferably, the temperature of the vinyl polymerization reaction is 80-150 ℃ and the time is 2-6 h.
The invention provides an application of the amphoteric synthetic fat liquor in the technical scheme or the amphoteric synthetic fat liquor prepared by the preparation method in the technical scheme in a leather fat liquor process.
The invention provides an amphoteric synthetic fat liquor, which comprises the following raw materials in parts by weight: 50-300 parts of hydroxyl organic amine; 50-400 parts of maleic anhydride; 50-500 parts of a long-chain vinyl compound; 5-30 parts of an acidic catalyst; 5-30 parts of an initiator; 150-2000 parts of water. The invention takes hydroxyl organic amine, maleic anhydride and long-chain vinyl compound as main raw materials, and obtains the amphoteric synthetic fat liquoring agent with higher branching degree under the actions of amidation, esterification and polymerization. In the preparation process, no organic solvent is added to dissolve materials, no three wastes are generated, and the preparation method is environment-friendly. The amphoteric synthetic fat liquor provided by the invention has the characteristics of stable property and difficult deterioration, has the characteristics of anionic fat liquor and cationic fat liquor, can have stronger binding force with leather collagen fiber, has good functions of surface fat liquor and internal fat liquor, gives leather good softness and comfortable hand feeling, and can achieve better effect only by using less fat liquor.
Detailed Description
The invention provides an amphoteric synthetic fat liquor, which comprises the following raw materials in parts by weight:
50-300 parts of hydroxyl organic amine;
50-400 parts of maleic anhydride;
50-500 parts of a long-chain vinyl compound;
5-30 parts of an acidic catalyst;
5-30 parts of an initiator;
150-2000 parts of water.
In the present invention, all the raw material components are commercially available products well known to those skilled in the art unless otherwise specified.
In the invention, the components for preparing the amphoteric synthetic fat liquor comprise 50-300 parts by weight of hydroxyl organic amine, preferably 150-236 parts by weight. In the present invention, the hydroxyl organic amine preferably includes one or more of N, N-Bis (2-hydroxyethyl) ethylenediamine, N '-tetrahydroxyethylethylenediamine, 2-amino-2-methyl-1-propanol, and N, N-dimethylethanolamine, and more preferably N, N-Bis (2-hydroxyethyl) ethylenediamine or N, N' -tetrahydroxyethylethylenediamine. In the invention, the hydroxy organic amine provides a cationic group for the amphoteric synthetic fat liquor.
In the invention, the components for preparing the amphoteric synthetic fat liquor comprise, by weight, 50-400 parts of maleic anhydride, preferably 98-300 parts of maleic anhydride, and more preferably 150-200 parts of hydroxyl organic amine. In the present invention, the maleic anhydride provides an anionic group for the amphoteric synthetic fatliquor.
In the invention, the components for preparing the amphoteric synthetic fat liquor comprise 50-500 parts of long-chain vinyl compound, preferably 100-400 parts, and more preferably 322-395 parts by weight of the hydroxy organic amine. In the present invention, the long-chain vinyl compound preferably includes one or more of carboxymethyloctadecyl methyldiallyl ammonium chloride, hexadecylmethyl diallyl ammonium chloride, octadecyl methyldiallyl ammonium chloride, tetraallyl ammonium chloride, hexadecyl acrylate, and octadecyl acrylate, more preferably carboxymethyloctadecyl methyldiallyl ammonium chloride and octadecyl acrylate, or hexadecyl acrylate and tetraallyl ammonium chloride. In a specific embodiment of the invention, when the long-chain vinyl compound is carboxymethyl octadecyl methyl diallyl ammonium chloride and octadecyl acrylate, the mass ratio of the carboxymethyl octadecyl methyl diallyl ammonium chloride to the octadecyl acrylate is preferably 11: 100-300, and more preferably 11: 150; when the long-chain vinyl compound is cetyl acrylate and tetraallylammonium chloride, the mass ratio of the cetyl acrylate to the tetraallylammonium chloride is preferably 2-5: 1, and more preferably 2.95: 1. In the present invention, the long-chain vinyl compound is copolymerized with the above maleic anhydride, and the long chain thereof imparts a good fatliquoring effect to the reactant.
In the invention, the weight portion of the hydroxyl organic amine is taken as a reference to prepare the amphoteric synthetic fat liquorThe component comprises 5-30 parts of an acidic catalyst, preferably 10-20 parts. In the present invention, the acidic catalyst is preferably p-toluenesulfonic acid, a solid acid catalyst or concentrated sulfuric acid. In the present invention, the mass concentration of the concentrated sulfuric acid is preferably 98%. In the present invention, the solid acid catalyst preferably comprises SiO2-Al2O3Catalyst or B2O3-Al2O3A catalyst. The method adopts the acid catalyst, and is more favorable for improving the conversion rate of the esterification reaction.
In the invention, the components for preparing the amphoteric synthetic fat liquor comprise 5-30 parts of initiator by weight, preferably 10-20 parts by weight of hydroxyl organic amine. In the present invention, the initiator preferably includes one or more of azobisisobutyronitrile, azobisisoheptonitrile, benzoyl peroxide, tert-butyl hydroperoxide, tert-butyl peroxybenzoate, potassium persulfate, sodium persulfate, and ammonium persulfate, more preferably benzoyl peroxide, or azobisisobutyronitrile and ammonium persulfate. In a specific embodiment of the present invention, when the initiator is azobisisobutyronitrile and ammonium persulfate, the mass ratio of the azobisisobutyronitrile to the ammonium persulfate is 1: 1.
In the invention, the components for preparing the amphoteric synthetic fat liquor comprise 150-2000 parts of water, preferably 1000-2000 parts of water based on the weight parts of the hydroxyl organic amine. In the present invention, the water is preferably distilled water.
In the present invention, it is preferable that a saponifying agent for saponification is further included in the process of preparing the amphoteric synthetic fatliquor. In the present invention, the saponifier is preferably sodium hydroxide solution; the mass fraction of the sodium hydroxide solution is preferably 30%. In the invention, the addition amount of the saponifier preferably ensures that the pH value of the amphoteric synthetic fatliquor is 6-8, and more preferably 6.8-7.
The invention also provides a preparation method of the amphoteric synthetic fat liquor, which comprises the following steps:
mixing hydroxyl organic amine and maleic anhydride, and carrying out amidation reaction to obtain an amidation product;
mixing the amidation product with an acidic catalyst, and carrying out esterification reaction to obtain an esterification product;
mixing the esterification product, a long-chain vinyl compound and an initiator, and carrying out vinyl polymerization reaction to obtain a polymerization product;
and mixing the polymerization product with water, pre-emulsifying, and saponifying the obtained pre-emulsified system to obtain the amphoteric synthetic fat liquor.
According to the invention, all raw material components except water are dried to be anhydrous preferably before the preparation of the amphoteric synthetic fat liquor. In a specific embodiment of the present invention, when the acidic catalyst is concentrated sulfuric acid, drying is not required. In the invention, the drying temperature is preferably 90-150 ℃, and more preferably 105-110 ℃. The invention can prevent hydrolysis from occurring and influence the reaction rate and the conversion rate by removing water in the raw materials.
The invention mixes hydroxyl organic amine and maleic anhydride to carry out amidation reaction to obtain amidated product. In the invention, the temperature of the amidation reaction is preferably 30-80 ℃, and more preferably 40-60 ℃; the time of the amidation reaction is preferably 2-6 h, and more preferably 3-5 h. In the invention, the acid anhydride on the maleic anhydride and the amine group in the hydroxyl organic amine have amidation reaction and release a carboxyl group.
After obtaining the amidation product, the invention mixes the amidation product with an acid catalyst to carry out esterification reaction, thus obtaining the esterification product. In the invention, the temperature of the esterification reaction is preferably 100-150 ℃, and more preferably 120-140 ℃; the time of the esterification reaction is preferably 2-6 h, and more preferably 3-5 h. In the esterification reaction process, carboxyl released from maleic anhydride is further subjected to esterification reaction with hydroxyl.
After the esterification product is obtained, the esterification product is mixed with a long-chain vinyl compound and an initiator to carry out vinyl polymerization reaction, so as to obtain a polymerization product. In the invention, the temperature of vinyl polymerization reaction is preferably 80-150 ℃, more preferably 90-110 ℃; the vinyl polymerization reaction time is preferably 2-6 hours, and more preferably 3-4 hours. In the vinyl polymerization reaction process, the carbon-carbon double bond on the maleic anhydride reacts with the long-chain vinyl compound.
In the specific embodiment of the present invention, when the long-chain vinyl compound is carboxymethyl octadecyl methyl diallyl ammonium chloride and octadecyl acrylate, the present invention preferably adds carboxymethyl octadecyl methyl diallyl ammonium chloride, octadecyl acrylate and an initiator to the esterification product in sequence to perform vinyl polymerization reaction, thereby obtaining a polymerization product.
In the specific embodiment of the present invention, when the long-chain vinyl compound is cetyl acrylate and tetraallylammonium chloride, the present invention preferably first adds cetyl acrylate and a first initiator to the esterification product to perform a first vinyl polymerization reaction; then adding the tetra allyl ammonium chloride and a second initiator into the obtained reaction system to carry out a second vinyl polymerization reaction, thereby obtaining a polymerization product. In a specific embodiment of the present invention, the first initiator is azobisisobutyronitrile; the temperature of the first vinyl polymerization reaction is 110 ℃, and the time is 3 hours; the second initiator is ammonium persulfate; the temperature of the second vinyl polymerization reaction is 110 ℃ and the time is 3 h.
After obtaining the polymerization product, the invention mixes the polymerization product with water for pre-emulsification, and saponifies the obtained pre-emulsification system to obtain the amphoteric synthetic fat liquor. In the present invention, the pre-emulsification is preferably performed under a stirring condition, and the stirring speed is preferably 50 to 5000rpm, and more preferably 2000 to 3000 rpm. In the invention, the pre-emulsification temperature is preferably 40-100 ℃, and more preferably 60-80 ℃; the pre-emulsification time is preferably 0.5-3 h, and more preferably 1-2 h.
After pre-emulsification, the pre-emulsification system is saponified to obtain the amphoteric synthetic fat liquor. The invention improves the hydrophilicity of the amphoteric synthetic fat liquor by saponification and improves the emulsification effect. In the present invention, the saponifying agent is preferably a sodium hydroxide solution; the mass fraction of the sodium hydroxide solution is preferably 30%; the addition amount of the saponifier is preferably selected to ensure that the pH value of the amphoteric synthetic fatliquor is 6-8, and more preferably 6.8-7.
The invention also provides the application of the amphoteric synthetic fat liquor in the leather fat liquor process. In the invention, the usage amount of the amphoteric synthetic fat liquor is preferably 1-20% of the tare weight, and more preferably 10%. The invention has no special requirements on the specific method of the application, and the leather greasing process is carried out according to the conventional leather greasing procedure in the field.
The technical solution of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Drying the materials except water until no moisture exists;
adding 150 parts by weight of N, N-bis (2-hydroxyethyl) ethylenediamine and 98 parts by weight of maleic anhydride into a reactor, heating to 40 ℃, and carrying out amidation reaction for 3 hours to obtain an amidation product;
adding a solid acid catalyst B to the amidation product2O3-Al2O310 parts of the raw materials are subjected to esterification reaction for 6 hours at 150 ℃ to obtain an esterification product;
adding 22 parts of carboxymethyl octadecyl methyl diallyl ammonium chloride, 300 parts of octadecyl acrylate and 10 parts of benzoyl peroxide into the esterification product, carrying out vinyl polymerization reaction for 4 hours at 90 ℃, adding 1000 parts of distilled water, stirring at the speed of 2000rpm for 1 hour, and adjusting the pH value to 7.0 by using a sodium hydroxide solution with the mass fraction of 30% to obtain the amphoteric synthetic fatliquor.
Example 2
Drying the materials except water until no moisture exists;
adding 236 parts of N, N, N ', N' -tetrahydroxyethyl ethylenediamine and 300 parts of maleic anhydride into a reactor, heating to 80 ℃, and carrying out amidation reaction for 2 hours to obtain an amidation product;
adding 12 parts of p-toluenesulfonic acid into the amidation product, and carrying out esterification reaction for 6 hours at 120 ℃ to obtain an esterification product;
adding 295 parts of hexadecyl acrylate and 10 parts of azobisisobutyronitrile into the esterification product, carrying out first vinyl polymerization at 110 ℃ for 3 hours, then adding 100 parts of tetraallylammonium chloride, adding 10 parts of ammonium persulfate, carrying out second vinyl polymerization at 110 ℃ for 3 hours, adding 2000 parts of distilled water, stirring at the speed of 3000rpm for 1 hour, and adjusting the pH value to 6.8 by using 30% by mass of sodium hydroxide solution to obtain the amphoteric synthetic fat liquor.
Comparative example 1
Anion fatliquoring agent LUTAPOL GLH, produced by Qinheimiao chemical Co., Ltd.
Comparative example 2
Cation fatting agent BUXOM EZ, produced by Qiheli chemical Co., Ltd.
Application example
Taking three same parts of cowhide wet leather, softening, retanning with chromium, neutralizing, retanning and performing conventional process operation, draining, then entering a greasing procedure, respectively adding the amphoteric synthetic greasing agent described in example 1, the anionic greasing agent in comparative example 1 and the cationic greasing agent in comparative example 2, wherein the addition amounts of the amphoteric synthetic greasing agents, the anionic greasing agents and the cationic greasing agents are 10% of the weight of the leather, treating in a rotary drum for 1.5 hours, heating to 50 ℃, then adding formic acid with the weight of 1.2% of the weight of the leather for fixation, finally washing with water, performing vacuum drying, and testing the performance of the leather, wherein the results are shown in Table:
TABLE 1 fatliquoring effect of example 1 and comparative examples 1 to 2
| Fatting agent | Softness | Thickening ratio% | Tear resistance N |
| Example 1 | 2.841 | 48.8 | 65.44 |
| Comparative example 1 | 2.126 | 20.7 | 62.17 |
| Comparative example 2 | 2.303 | 29.3 | 63.20 |
The softness is tested by a leather softness tester DY-4023, the thickening rate is tested by a leather thickness tester XK-3054, the calculation method is the ratio of the thickness difference between the leather greased and the blue wet leather thickness to the blue wet leather thickness, and the tearing resistance is tested by an electronic tensile tester WDW-50M.
As can be seen from Table 1, the leather treated by the amphoteric synthetic fat liquor provided by the invention can improve the softness, thickening rate and tearing resistance of the leather. The amphiprotic synthetic fat liquor provided by the invention can endow leather with good softness and comfortable hand feeling, and is beneficial to improving the mechanical property of the leather.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The amphoteric synthetic fat liquor is characterized in that the preparation raw materials comprise the following components in parts by weight:
50-300 parts of hydroxyl organic amine;
50-400 parts of maleic anhydride;
50-500 parts of a long-chain vinyl compound;
5-30 parts of an acidic catalyst;
5-30 parts of an initiator;
150-2000 parts of water.
2. The amphiphilic synthetic fatliquor of claim 1, wherein the hydroxy organic amine comprises one or more of N, N-Bis (2-hydroxyethyl) ethylenediamine, N' -tetrahydroxyethylethylenediamine, 2-amino-2-methyl-1-propanol, and N, N-dimethylethanolamine.
3. The amphoteric synthetic fatliquor of claim 1, wherein the long chain vinyl compound comprises one or more of carboxymethyloctadecyl methyl diallylammonium chloride, hexadecylmethyl diallylammonium chloride, octadecyl methyl diallylammonium chloride, tetraallylammonium chloride, hexadecyl acrylate, and octadecyl acrylate.
4. The amphoteric synthetic fatliquor of claim 1, wherein the acidic catalyst is p-toluenesulfonic acid, a solid acid catalyst, or concentrated sulfuric acid.
5. The amphoteric synthetic fatliquor of claim 1, wherein the initiator comprises one or more of azobisisobutyronitrile, azobisisoheptonitrile, benzoyl peroxide, t-butyl hydroperoxide, t-butyl peroxybenzoate, potassium persulfate, sodium persulfate, and ammonium persulfate.
6. A method for preparing an amphoteric synthetic fatliquor according to any one of claims 1 to 5, comprising the steps of:
mixing hydroxyl organic amine and maleic anhydride, and carrying out amidation reaction to obtain an amidation product;
mixing the amidation product with an acidic catalyst, and carrying out esterification reaction to obtain an esterification product;
mixing the esterification product, a long-chain vinyl compound and an initiator, and carrying out vinyl polymerization reaction to obtain a polymerization product;
and mixing the polymerization product with water, pre-emulsifying, and saponifying the obtained pre-emulsified system to obtain the amphoteric synthetic fat liquor.
7. The method according to claim 6, wherein the temperature of the amidation reaction is 30 to 80 ℃ and the time is 2 to 6 hours.
8. The preparation method according to claim 6, wherein the esterification reaction is carried out at a temperature of 100 to 150 ℃ for 2 to 6 hours.
9. The preparation method of claim 6, wherein the vinyl polymerization reaction is carried out at a temperature of 80-150 ℃ for 2-6 h.
10. Use of the amphoteric synthetic fat liquor according to any one of claims 1 to 5 or the amphoteric synthetic fat liquor prepared by the method according to any one of claims 6 to 9 in a leather fat liquor process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011535261.5A CN112679650B (en) | 2020-12-23 | 2020-12-23 | Amphoteric synthetic fat liquor, preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011535261.5A CN112679650B (en) | 2020-12-23 | 2020-12-23 | Amphoteric synthetic fat liquor, preparation method and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112679650A true CN112679650A (en) | 2021-04-20 |
| CN112679650B CN112679650B (en) | 2022-07-12 |
Family
ID=75450950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011535261.5A Active CN112679650B (en) | 2020-12-23 | 2020-12-23 | Amphoteric synthetic fat liquor, preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112679650B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115322282A (en) * | 2022-09-02 | 2022-11-11 | 齐河力厚化工有限公司 | Modifier and preparation method thereof, modified acrylic resin and preparation method and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5286263A (en) * | 1989-08-08 | 1994-02-15 | Basf Aktiengesellschaft | Use of copolymers based on long-chain alkyl vinyl ethers and ethylenically unsaturated dicarboxylic anhydrides for rendering leathers and skins water-repellent |
| CN1788093A (en) * | 2003-05-13 | 2006-06-14 | 巴斯福股份公司 | Use of copolymers as auxiliary agents for producing leather |
| CN101831024A (en) * | 2010-05-15 | 2010-09-15 | 甘肃宏良皮业股份有限公司 | Method for preparing polymer retanning fat-liquoring agent and retanning fat-liquoring agent |
| CN102120788A (en) * | 2010-12-15 | 2011-07-13 | 陕西科技大学 | Method for preparing polymaleic anhydride fatty alcohol ether single ester leather fatliquoring agent |
-
2020
- 2020-12-23 CN CN202011535261.5A patent/CN112679650B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5286263A (en) * | 1989-08-08 | 1994-02-15 | Basf Aktiengesellschaft | Use of copolymers based on long-chain alkyl vinyl ethers and ethylenically unsaturated dicarboxylic anhydrides for rendering leathers and skins water-repellent |
| CN1788093A (en) * | 2003-05-13 | 2006-06-14 | 巴斯福股份公司 | Use of copolymers as auxiliary agents for producing leather |
| CN101831024A (en) * | 2010-05-15 | 2010-09-15 | 甘肃宏良皮业股份有限公司 | Method for preparing polymer retanning fat-liquoring agent and retanning fat-liquoring agent |
| CN102120788A (en) * | 2010-12-15 | 2011-07-13 | 陕西科技大学 | Method for preparing polymaleic anhydride fatty alcohol ether single ester leather fatliquoring agent |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115322282A (en) * | 2022-09-02 | 2022-11-11 | 齐河力厚化工有限公司 | Modifier and preparation method thereof, modified acrylic resin and preparation method and application thereof |
| CN115322282B (en) * | 2022-09-02 | 2023-08-22 | 齐河力厚化工有限公司 | Modifier and preparation method thereof, modified acrylic resin and preparation method and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112679650B (en) | 2022-07-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| PT92461A (en) | METHOD OF TREATMENT OF TANNY COIRO WITH SELF-PROPYLATED COPOLYMERS | |
| CN112679650B (en) | Amphoteric synthetic fat liquor, preparation method and application thereof | |
| CN110387009B (en) | Amphoteric polymer surfactant and chrome-free tanning leather fatting agent containing surfactant | |
| CN108018386B (en) | Preparation method of polymaleic anhydride modified camellia oil fatting agent | |
| US2635060A (en) | Water-resistant leather and process for producing same | |
| JP3295080B2 (en) | Aqueous dispersions of novel bi-affinity cooligomers for use in washing and cleaning-resistant oiling of leather and leather and their use | |
| US5556930A (en) | Copolymers and their use in the treatment of leather | |
| JPH0841130A (en) | Copolymer having ethylenically unsaturated dicarboxylic acidanhydride,long-chain olefin and fluoroolefin as constituents | |
| CN102703623A (en) | Novel greasing agent for synthetic leather and preparation method for novel greasing agent | |
| US5575939A (en) | Process for softening/stuffing leather and fur skins | |
| CN101775188A (en) | Method for preparing filling leather fatliquoring agent | |
| KR20040044859A (en) | Emulsifying agent composition and low-fogging, high-exhaust stuffing agent, the production and utilization thereof | |
| CN112679712B (en) | Synthetic fat liquor, preparation method and application thereof | |
| CN112694565B (en) | Amphoteric organic silicon polymer and preparation method and application thereof | |
| CN110343792B (en) | Leather fatting agent composition and preparation method thereof | |
| WO2005087826A1 (en) | Polymer and treatment agent for treating leather and protein fiber | |
| JPH07508785A (en) | Novel leather oiling formulations and their uses | |
| CN115305297B (en) | Synthetic fatting agent and preparation method and application thereof | |
| Wang et al. | Preparation of organosilicone modified palm oil fatliquor | |
| CN1958631A (en) | Method for preparing agent of adding grease for graft copolymerization of colza oil | |
| JP6448975B2 (en) | Re-tanning chrome-free leather | |
| CN102747171A (en) | Wet processing method of waterproof shoe upper leather | |
| JP3907702B2 (en) | Aqueous polymer dispersion, process for its preparation and method of using it in the manufacture of leather | |
| CN112679681B (en) | Organic silicon polymer and preparation method and application thereof | |
| CN102153699A (en) | Method for preparing leather retanning and greasing agent of poly (long-chain fatty alcohol-itaconic acid monoester) and acrylic acid copolymer |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |