CN118146557A - PU leather wet DMF rapid replacement cell regulator and preparation and application thereof - Google Patents
PU leather wet DMF rapid replacement cell regulator and preparation and application thereof Download PDFInfo
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- CN118146557A CN118146557A CN202410568790.7A CN202410568790A CN118146557A CN 118146557 A CN118146557 A CN 118146557A CN 202410568790 A CN202410568790 A CN 202410568790A CN 118146557 A CN118146557 A CN 118146557A
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- silicone oil
- leather
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- regulator
- tween
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- 239000010985 leather Substances 0.000 title claims abstract description 28
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 229920002545 silicone oil Polymers 0.000 claims abstract description 40
- 239000004721 Polyphenylene oxide Substances 0.000 claims abstract description 29
- 229920000570 polyether Polymers 0.000 claims abstract description 29
- 238000000034 method Methods 0.000 claims abstract description 22
- 239000006260 foam Substances 0.000 claims abstract description 19
- 229920000136 polysorbate Polymers 0.000 claims abstract description 12
- 230000008569 process Effects 0.000 claims abstract description 9
- 239000002994 raw material Substances 0.000 claims abstract description 7
- 239000002736 nonionic surfactant Substances 0.000 claims description 22
- 238000003756 stirring Methods 0.000 claims description 19
- LWZFANDGMFTDAV-BURFUSLBSA-N [(2r)-2-[(2r,3r,4s)-3,4-dihydroxyoxolan-2-yl]-2-hydroxyethyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O LWZFANDGMFTDAV-BURFUSLBSA-N 0.000 claims description 13
- 235000011067 sorbitan monolaureate Nutrition 0.000 claims description 13
- 229920001213 Polysorbate 20 Polymers 0.000 claims description 10
- IYFATESGLOUGBX-YVNJGZBMSA-N Sorbitan monopalmitate Chemical compound CCCCCCCCCCCCCCCC(=O)OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O IYFATESGLOUGBX-YVNJGZBMSA-N 0.000 claims description 10
- 239000000256 polyoxyethylene sorbitan monolaurate Substances 0.000 claims description 10
- 235000010486 polyoxyethylene sorbitan monolaurate Nutrition 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 2
- 238000005303 weighing Methods 0.000 claims description 2
- 241000321398 Dermatolepis dermatolepis Species 0.000 abstract description 9
- 239000012752 auxiliary agent Substances 0.000 abstract description 7
- 239000002002 slurry Substances 0.000 abstract description 4
- 238000004945 emulsification Methods 0.000 abstract description 2
- 239000003995 emulsifying agent Substances 0.000 abstract description 2
- 239000004814 polyurethane Substances 0.000 description 31
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 26
- 210000004027 cell Anatomy 0.000 description 19
- 238000007711 solidification Methods 0.000 description 11
- 230000008023 solidification Effects 0.000 description 11
- 238000000576 coating method Methods 0.000 description 8
- 238000012360 testing method Methods 0.000 description 8
- 239000011248 coating agent Substances 0.000 description 7
- -1 sorbitan fatty acid ester Chemical class 0.000 description 7
- 235000014113 dietary fatty acids Nutrition 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 239000000194 fatty acid Substances 0.000 description 6
- 229930195729 fatty acid Natural products 0.000 description 6
- 239000003945 anionic surfactant Substances 0.000 description 5
- 239000010410 layer Substances 0.000 description 5
- 229920001214 Polysorbate 60 Polymers 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 230000001804 emulsifying effect Effects 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 210000000497 foam cell Anatomy 0.000 description 2
- 238000001879 gelation Methods 0.000 description 2
- 238000005338 heat storage Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- GLDOVTGHNKAZLK-UHFFFAOYSA-N octadecan-1-ol Chemical compound CCCCCCCCCCCCCCCCCCO GLDOVTGHNKAZLK-UHFFFAOYSA-N 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 2
- 210000003491 skin Anatomy 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 1
- NWGKJDSIEKMTRX-AAZCQSIUSA-N Sorbitan monooleate Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O NWGKJDSIEKMTRX-AAZCQSIUSA-N 0.000 description 1
- HVUMOYIDDBPOLL-XWVZOOPGSA-N Sorbitan monostearate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O HVUMOYIDDBPOLL-XWVZOOPGSA-N 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 1
- AMTWCFIAVKBGOD-UHFFFAOYSA-N dioxosilane;methoxy-dimethyl-trimethylsilyloxysilane Chemical compound O=[Si]=O.CO[Si](C)(C)O[Si](C)(C)C AMTWCFIAVKBGOD-UHFFFAOYSA-N 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 210000002615 epidermis Anatomy 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000002649 leather substitute Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 230000001114 myogenic effect Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 235000010482 polyoxyethylene sorbitan monooleate Nutrition 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229920000053 polysorbate 80 Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229940083037 simethicone Drugs 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 1
- 229920006027 ternary co-polymer Polymers 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Landscapes
- Treatment And Processing Of Natural Fur Or Leather (AREA)
Abstract
The invention discloses a PU leather wet DMF rapid replacement cell regulator and preparation and application thereof. The foam regulator only contains polyether silicone oil, span or tween, contains few raw material components, has simple preparation process, and does not need to add an emulsifying agent or raise temperature for emulsification. The foam regulator is added into the PU leather wet slurry, so that the replacement speed of DMF can be obviously improved, and the PU leather bass is endowed with excellent skin fine touch feeling. The method can reduce the process flow, improve the working efficiency and the stability of the auxiliary agent product, and improve the service performance of the product.
Description
Technical Field
The invention belongs to the field of artificial leather manufacturing, and relates to a foam regulator, in particular to a PU leather wet DMF quick replacement foam regulator, and preparation and application thereof.
Background
In the PU leather wet coating process, a certain amount of cell regulator (also called micropore regulating auxiliary agent) is needed to be added into the polyurethane solution, and the main purpose is to regulate the hydrophilicity and hydrophobicity of the coating solution through the auxiliary agent so as to control the gelation process and the solidification speed, thereby controlling the micropore structure of a final product and obtaining wet base with different softness and elasticity, so that the internal structure of the PU leather is gradually close to that of natural leather, and other physical properties are close to indexes of the natural leather. General wet micropore adjusting aids fall into two categories: one is an anionic surfactant; one is a nonionic surfactant.
The foam regulator which adopts anionic surfactant (sulfonate and the like) and water to emulsify nonionic surfactant (methyl silicone oil, hydroxy silicone oil and the like) has slow overall solidification speed, and the prepared PU leather finished product has the disadvantages of insufficient fine skin touch and soft overall hand feeling and has obvious difference from natural leather. Because silicone oil such as methyl silicone oil and hydroxyl silicone oil is adopted as a water emulsifying nonionic surfactant, the water emulsifying nonionic surfactant is relatively oleophylic, has no hydrophilic chain segment, has poor compatibility with other nonionic surfactants, and can be emulsified only by adopting a mechanical emulsifying mode. The anionic surfactant (main components are generally octadecanol, sulfonic acid and the like) has good effect on promoting the diffusion of water into the coating, and can improve the gelation rate of the coating liquid and the formation rate of the surface layer of the coating in the solidification process. However, the anionic surfactant is not beneficial to the overall solidification speed of the film, so that a large number of PU macromolecules in the coating move to the epidermis layer along with the diffusion of DMF, and finally the difference of the micropore structures of the inner layer and the outer layer of the PU bass is increased, and the micropores of the inner layer are uneven.
The current experiment shows that the pure polyether silicone oil used as the wet auxiliary agent has the advantages of higher solidification speed, less DMF residue and higher factory efficiency, but the skin has stronger plastic feel and is not fine enough. The wet process auxiliary agent of the sorbitan fatty acid ester and the polyoxyethylene sorbitan fatty acid ester has the advantages of slow solidification speed, fine and tender surface, slow DMF replacement speed, slow factory speed and low production efficiency.
Disclosure of Invention
The invention aims to solve the problem in the prior art and provides a foam cell regulator suitable for quick replacement of PU leather wet DMF. The foam regulator has the advantages of few raw material components, simple preparation process, no need of emulsifying by an emulsifying agent, good compatibility and better stability. The method can reduce the process flow, improve the working efficiency and the stability of the auxiliary agent product, and improve the service performance of the product.
In one aspect, the invention provides a method for preparing a cell regulator, comprising the steps of:
weighing polyether silicone oil and nonionic surfactant, mixing and stirring, and dispersing on a high-speed stirrer to obtain the foam regulator;
Wherein, the polyether silicone oil accounts for 70-90% of the weight of the raw materials, and the rest is nonionic surfactant;
The nonionic surfactant is selected from one of span 20, span 40, tween 20 and Tween 40.
Preferably, the polyether silicone oil accounts for 70% of the weight of the raw material.
Preferably, the nonionic surfactant is span 20.
Preferably, the stirring speed of the high-speed stirrer is 300-700 revolutions/min.
Further preferably, the stirring speed of the high-speed stirrer is 500 rpm.
Preferably, the time for the dispersion on the high-speed mixer is 5-30min.
Further preferably, the time of the dispersion on the high-speed mixer is 5 to 30 minutes.
The invention also provides a cell regulator, which comprises polyether silicone oil and nonionic surfactant; wherein the polyether silicone oil accounts for 70-90% of the weight of the composition, and the rest is nonionic surfactant;
The nonionic surfactant is selected from one of span 20, span 40, tween 20 and Tween 40.
Wherein span 20 and span 40 are sorbitan fatty acid esters; tween 20 and tween 40 are polyoxyethylene sorbitan fatty acid esters.
The invention also provides an application of the foam regulator in preparing PU leather, wherein the PU leather is obtained by quick replacement of wet DMF.
Preferably, the cell regulator is added in an amount of 0.5 to 2% by weight.
The invention has the advantages and beneficial effects as follows:
The foam regulator disclosed by the invention can reduce the cohesive force among PU molecules to a certain extent, so that the forming speed of the outermost surface layer in the solidification process is reduced, the resistance of DMF (dimethyl formamide) in the coating to outwards diffuse is reduced, the integral solidification speed of a film is improved, the DMF replacement speed is faster, the micropore structure of the obtained PU bass becomes uniform and regular, the touch feeling of a surface is better, and the thickness of the film and the air permeability and moisture permeability are improved.
The polyether silicone oil contains a polyether structure, has good compatibility with sorbitan fatty acid ester and polyoxyethylene sorbitan fatty acid ester, has good compatibility after physical mixing, and is not easy to delaminate. The mixing process of the foam regulator is simpler, and mechanical emulsification is not needed. The foam regulator disclosed by the invention can be added into slurry after being prepared into a wet auxiliary agent, so that the replacement speed of DMF can be obviously improved, and excellent fine and smooth touch feeling is given to the surface. The uniformity of the wet auxiliary cells formed by the anionic surfactant and the water-emulsified nonionic surfactant is slightly poor, the wet auxiliary cells prepared by compounding span or tween with the polyether silicone oil are better in uniformity, the peel strength of a wet layer is better, and the peel strength is not influenced.
Detailed Description
In order to further understand the present invention, a technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. Unless otherwise specified, all reagents involved in the examples of the present invention are commercially available products and are commercially available. The chemicals and consumables used in the experiments meet the industrial production standards.
The main raw materials related to the application comprise: carboxyl modified silicone oil, polyether modified silicone oil, ternary polymerization silicone oil, linear polysiloxane, span 20, span 40, tween 20, tween 40 and the like.
The main experimental facilities are a high-speed dispersing machine, an analytical balance, an electric stirrer, a viscosity tester, a leather softness tester, an oven, a wear-resisting instrument, a breaking strength tester, a peeling strength tester, an elasticity tester and the like.
Example 1
The weighed polyether silicone oil and span 20 were added to the stirring cup, wherein the polyether silicone oil was 70 parts by weight and span 20 was 30 parts by weight. And (3) placing the stirring cup in a high-speed stirrer, and stirring and dispersing for 10min at a rotating speed of 500 revolutions per minute to obtain the foam pore regulator.
Example 2
The weighed polyether silicone oil and span 40 were added to the stirring cup, wherein the polyether silicone oil was 90 parts by weight and span 40 was 10 parts by weight. And (3) placing the stirring cup in a high-speed stirrer, and stirring and dispersing for 30min at a rotating speed of 300 revolutions per minute to obtain the foam pore regulator.
Example 3
The weighed polyether silicone oil and tween 20 were added to the stirring cup, wherein the polyether silicone oil was 80 parts by weight and the tween 20 was 20 parts by weight. And (3) placing the stirring cup in a high-speed stirrer, and stirring and dispersing for 5min at the rotating speed of 700 revolutions per minute to obtain the foam hole regulator.
Example 4
The weighed polyether silicone oil and tween 40 were added to the stirring cup, wherein the polyether silicone oil was 70 parts by weight and the tween 40 was 10 parts by weight. And (3) placing the stirring cup in a high-speed stirrer, and stirring and dispersing for 20min at a rotating speed of 500 revolutions per minute to obtain the foam pore regulator.
Example 5: wet process for preparing PU leather
1) Adding a foam regulator into the PU leather wet slurry according to the mass ratio of 0.5%, and fully stirring;
2) And coating, solidifying, washing and drying the slurry by a PU leather wet process to obtain the PU leather bass, and detecting the performance. The softness, the peel strength, the rebound coefficient and other application mechanics test methods of the PU leather base are carried out according to relevant national industry standards.
Softness: the softness performance of the PU leather bass prepared by adding the foam regulator is tested and judged by adopting a leather softness tester according to the ISO-17235 method.
Peel strength: the peel strength performance of the PU leather bass prepared by adding the foam cell regulator is tested and judged by adopting a peel strength tester according to the GB 8808 method.
Surface gloss test: the surface glossiness test angle of the PU leather bass prepared after the addition of the foam regulator is 60 degrees, and the test judgment is carried out by adopting a 60 ℃ glossmeter.
Comparative example 1
Referring to the preparation method of example 1, span 20 was replaced with equal parts by weight of other nonionic surfactants including span 40, span 60, span 80, tween 20, tween 40, tween 60, tween 80, to obtain various cell regulators. And testing the compounding stability of each cell regulator. And referring to the method of example 5, the application performance grades of PU leather base prepared with different cell regulators were prepared and compared.
The test results are shown in table 1, and the nonionic surfactants of various types have good stability after being compounded with polyether silicone oil. The PU leather bass prepared from span 20 (S20), span 40 (S40), tween 20 (T20) and Tween 40 (T40) has the highest application performance grade.
The effect of different types of span on the performance of PU leather bass is shown in table 1.
TABLE 1
Comparative example 2
Referring to the preparation method of example 1, polyether silicone oil was replaced with other different types of silicone oils of equal weight parts, including dimethyl silicone oil, hydroxyl silicone oil, branched carboxyl modified silicone oil, ternary copolymer silicone oil of various viscosities, to obtain various cell regulators. Each cell regulator was tested for appearance and stability. And referring to the method of example 5, the application performance grades of PU leather base prepared with different cell regulators were prepared and compared. The test results are shown in Table 2, and besides the simethicone, the silicone oil of each type has good stability at normal temperature after being compounded with span 20. However, only polyether silicone oil does not have layering phenomenon during heat storage. The heat storage conditions used for the test were 50 ℃ oven storage for half a month.
The test data for the preparation of cell regulators from different types of silicone oils are shown in table 2.
TABLE 2
Comparative example 3
With reference to the preparation method of example 5, the effect of adding the cell regulator prepared in example 1 in different proportions on the properties of PU leather base was tested. The comparison shows that the performance of the blank PU leather base is obviously improved by adding 0.5 percent. After the addition amount is more than 0.5%, the performance of the PU leather bass is improved, but the improvement range is smaller.
The effect of the cell regulator prepared in example 1 in different proportions on the properties of PU leather base is shown in Table 3.
TABLE 3 Table 3
Comparative example 4
With reference to the preparation method of example 5, the addition of different cell regulators was tested for their effect on the properties of PU leather bass. The single-component anion has low peel strength, poor softness, myogenic property and glossiness and high solidification speed; the single-component nonionic softness is good, but the solidification speed is slow; the softness of the single-component polyether silicone oil is obviously different from that of the nonionic polyether silicone oil, but the solidification speed is high. In comparison, the cell regulator of example 1 (see Table 3) prepared by the present application not only has a high setting rate, but also has a better softness.
The effect of different cell regulators on the PU leather base properties is shown in Table 4.
TABLE 4 Table 4
The above description is only a preferred example of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A method of preparing a cell regulator comprising the steps of:
weighing polyether silicone oil and nonionic surfactant, mixing and stirring, and dispersing on a high-speed stirrer to obtain the foam regulator;
Wherein, the polyether silicone oil accounts for 70-90% of the weight of the raw materials, and the rest is nonionic surfactant;
The nonionic surfactant is selected from one of span 20, span 40, tween 20 and Tween 40.
2. The preparation method according to claim 1, wherein the polyether silicone oil accounts for 70% of the weight of the raw material.
3. The method of claim 1, wherein the nonionic surfactant is span 20.
4. The method according to claim 1, wherein the stirring speed of the high-speed stirrer is 300 to 700 rpm.
5. The method according to claim 4, wherein the stirring speed of the high-speed stirrer is 500 rpm.
6. The method of claim 1, wherein the time of dispersing on the high speed mixer is 5-30min.
7. The method of claim 6, wherein the dispersing time is 10 minutes.
8. A cell regulator, characterized by comprising polyether silicone oil and nonionic surfactant; wherein the polyether silicone oil accounts for 70-90% of the weight of the composition, and the rest is nonionic surfactant;
The nonionic surfactant is selected from one of span 20, span 40, tween 20 and Tween 40.
9. Use of a cell regulator according to claim 8 for the preparation of PU leather, characterized in that PU leather is obtained by rapid replacement of DMF by wet process.
10. The use according to claim 9, wherein the cell regulator is added in a proportion of 0.5 to 2% by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410568790.7A CN118146557A (en) | 2024-05-09 | 2024-05-09 | PU leather wet DMF rapid replacement cell regulator and preparation and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202410568790.7A CN118146557A (en) | 2024-05-09 | 2024-05-09 | PU leather wet DMF rapid replacement cell regulator and preparation and application thereof |
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| CN118146557A true CN118146557A (en) | 2024-06-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202410568790.7A Pending CN118146557A (en) | 2024-05-09 | 2024-05-09 | PU leather wet DMF rapid replacement cell regulator and preparation and application thereof |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101284916A (en) * | 2008-05-19 | 2008-10-15 | 苏州宝泽高分子材料有限公司 | Antisticking smoothing agent for PU leather |
| US20090012197A1 (en) * | 2006-08-18 | 2009-01-08 | Goldschmidt Gmbh | Use of low-viscosity aqueous hot-cure flexible polyurethane foam stabilizer solutions containing polyethersiloxanes in the production of hot-cure flexible polyurethane foams |
| CN104667585A (en) * | 2013-12-02 | 2015-06-03 | 青岛惠城石化科技有限公司 | Research of polyester modified polysiloxane compound type de-foaming agent |
| CN104972582A (en) * | 2015-07-23 | 2015-10-14 | 南雄鼎成化工有限公司 | Organic silicon release agent for polyurethane shoe soles |
| CN110452359A (en) * | 2019-08-15 | 2019-11-15 | 台州禾欣高分子新材料有限公司 | A kind of preparation and application of PU mirror surface leather polyurethane wet resin |
| CN117440990A (en) * | 2021-06-17 | 2024-01-23 | Kcc有机硅株式会社 | Organosilicon emulsion for additive |
-
2024
- 2024-05-09 CN CN202410568790.7A patent/CN118146557A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090012197A1 (en) * | 2006-08-18 | 2009-01-08 | Goldschmidt Gmbh | Use of low-viscosity aqueous hot-cure flexible polyurethane foam stabilizer solutions containing polyethersiloxanes in the production of hot-cure flexible polyurethane foams |
| CN101284916A (en) * | 2008-05-19 | 2008-10-15 | 苏州宝泽高分子材料有限公司 | Antisticking smoothing agent for PU leather |
| CN104667585A (en) * | 2013-12-02 | 2015-06-03 | 青岛惠城石化科技有限公司 | Research of polyester modified polysiloxane compound type de-foaming agent |
| CN104972582A (en) * | 2015-07-23 | 2015-10-14 | 南雄鼎成化工有限公司 | Organic silicon release agent for polyurethane shoe soles |
| CN110452359A (en) * | 2019-08-15 | 2019-11-15 | 台州禾欣高分子新材料有限公司 | A kind of preparation and application of PU mirror surface leather polyurethane wet resin |
| CN117440990A (en) * | 2021-06-17 | 2024-01-23 | Kcc有机硅株式会社 | Organosilicon emulsion for additive |
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