CN111718671A - High-moisture-permeability polyurethane pressure-sensitive adhesive for skin and use method thereof - Google Patents
High-moisture-permeability polyurethane pressure-sensitive adhesive for skin and use method thereof Download PDFInfo
- Publication number
- CN111718671A CN111718671A CN202010565891.0A CN202010565891A CN111718671A CN 111718671 A CN111718671 A CN 111718671A CN 202010565891 A CN202010565891 A CN 202010565891A CN 111718671 A CN111718671 A CN 111718671A
- Authority
- CN
- China
- Prior art keywords
- component
- sensitive adhesive
- skin
- pressure
- high moisture
- 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
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
- C09J7/38—Pressure-sensitive adhesives [PSA]
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/73—Polyisocyanates or polyisothiocyanates acyclic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
- C09J175/04—Polyurethanes
- C09J175/08—Polyurethanes from polyethers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/22—Plastics; Metallised plastics
- C09J7/25—Plastics; Metallised plastics based on macromolecular compounds obtained otherwise than by reactions involving only carbon-to-carbon unsaturated bonds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2475/00—Presence of polyurethane
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2475/00—Presence of polyurethane
- C09J2475/006—Presence of polyurethane in the substrate
Abstract
The invention relates to a high moisture-permeable polyurethane pressure-sensitive adhesive for skin, which has low peel strength, extremely low sensitization, air permeability and comfort and is suitable for scraper type coating, and a use method thereof, wherein the high moisture-permeable polyurethane pressure-sensitive adhesive is prepared by mixing a component A and a component B; the component A comprises polyalcohol, sodium carboxymethylcellulose and a catalyst; the component B is isocyanate prepolymer; the mass ratio of the component A to the component B is 9: 1-11: 1. according to the invention, the peeling strength is adjusted by the proportion of the component A and the component B, so that the obtained product has a good pasting effect on the skin and proper cohesive strength, and no residual adhesive is left on the skin during peeling; the pressure-sensitive adhesive prepared by utilizing the hydrophilicity of the polyalcohol and the sodium carboxymethyl cellulose has high moisture permeability; the viscosity of the mixed A component and B component is 1500-; the pressure-sensitive adhesive has the advantages of low peel strength, extremely low sensitization, ventilation, comfort and the like.
Description
Technical Field
The invention relates to a medical pressure-sensitive adhesive, in particular to a high moisture-permeable polyurethane pressure-sensitive adhesive which has low peel strength, extremely low sensitization and air permeability and is comfortable and suitable for scraper-type coating and a use method thereof.
Background
Pressure sensitive adhesives are a class of adhesives that require only a slight amount of pressure to adhere strongly to an adherend. Because the pressure-sensitive adhesive has certain initial adhesiveness and lasting adhesiveness, can be repeatedly used under the condition of no pollution, has no pollution to the adhered surface after being stripped and the like, the pressure-sensitive adhesive is widely applied to the fields of electronic insulation, electronic element processing, color enlarging and printing, military virus detection products, automotive interior, medical treatment and the like.
Wherein, the requirement of medical pressure-sensitive adhesive to the performance is very high, needs to satisfy: 1) can be well adhered to various skin types (dry and wet); 2) can be removed without leaving any residue or causing skin damage and irritation to the skin.
Medical adhesive dressings, such as surgical films, indwelling needle pastes, application pastes and the like, are generally prepared by using acrylate pressure-sensitive adhesives and hot melt adhesives at present and applying polyurethane pressure-sensitive adhesives in small quantities. At present, the requirements of people on products are higher and higher, particularly the requirements on peeling force and moisture permeability, and the requirements on low peeling force and high moisture permeability are required.
The main defects of the existing glue medical dressing are as follows:
1) the acrylate pressure-sensitive adhesive layer has low water vapor transmission rate and can bring discomfort to users.
2) The low-peeling-force products of the acrylate pressure-sensitive adhesive and the hot melt adhesive can cause poor curling of the products in the using process.
The invention discloses a hydrophilic polyurethane pressure-sensitive adhesive for skin and a preparation method thereof, wherein the Chinese patent application number is 2014106919113, and the publication date is 2015, 4 and 8, and the invention discloses a hydrophilic polyurethane pressure-sensitive adhesive for skin and a preparation method thereof, and the preparation method comprises the following steps: polyurethane, sweetgum resin, alginate, gelatin, fibrin, plant polysaccharide, methacryloyl ethyl sulfobetaine, triethyl citrate and polyethylene glycol dimethyl ether. The polyurethane pressure-sensitive adhesive has the defects that the polyurethane pressure-sensitive adhesive is hot-melt adhesive and is not suitable for scraper type coating.
Disclosure of Invention
In order to solve the problems, the invention provides the high-moisture-permeability polyurethane pressure-sensitive adhesive for the skin, which has low peel strength, extremely low sensitization and air permeability, is comfortable and is suitable for scraper coating, and the use method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
a high moisture-permeable polyurethane pressure-sensitive adhesive for skin is prepared by mixing a component A and a component B; the component A comprises polyalcohol, sodium carboxymethyl cellulose and a catalyst; the component B is isocyanate prepolymer; the mass ratio of the component A to the component B is 9: 1-11: 1.
preferably, the polyol is a polyether polyol; the catalyst is one or two of a bismuth-based catalyst and a zinc-based catalyst.
Preferably, the isocyanate prepolymer is an aliphatic isocyanate prepolymer based on hexamethylene diisocyanate.
Preferably, the polyol has a hydroxyl content of 30 to 40mg KOH/g.
Preferably, the isocyanate group content of the isocyanate prepolymer is 10 to 15%.
Preferably, in the component A, the mass of the sodium carboxymethyl cellulose is 1-5% of that of the polyhydric alcohol, and the mass of the catalyst is 0.1-0.5% of that of the polyhydric alcohol.
Preferably, the viscosity of the A component and the B component after mixing is 1500-.
The application method of the high moisture-permeable polyurethane pressure-sensitive adhesive for the skin comprises the following steps:
1) adding catalyst 0.1-0.5% of polyalcohol and sodium carboxymethylcellulose 1-5% of polyalcohol into polyalcohol, stirring with a stirrer at 3000r/min for 10-30min to obtain component A;
2) mixing the component A and the component B obtained in the step 1) by a quantitative rubber mixing machine, wherein the mixing ratio is A, B is 9: 1-11: 1; obtaining the pressure-sensitive adhesive;
3) coating by a scraper type coating machine, and adjusting the required glue amount;
4) performing heat curing through an oven, wherein the oven is 90-130 ℃;
5) and compounding the cured adhesive with a corresponding base material to prepare the corresponding dressing coiled material.
In the invention, the performances of polyurethanes prepared from different polyols and isocyanate prepolymers are different, and the polyester polyurethane has high polarity of ester groups in molecules, high cohesive energy, large intermolecular force of soft segments, high mechanical strength and higher hardness. The polyether polyurethane has better flexibility because the ether group is easier to rotate, and can be better applied to the skin with uneven surface. Therefore, polyether polyols are preferably used.
The structure of the isocyanate has a great influence on the performance of the polyurethane pressure-sensitive adhesive. The polyurethane pressure-sensitive adhesive prepared from the aromatic isocyanate has higher modulus, is easy to yellow, and cannot be prepared into light-colored or transparent pressure-sensitive adhesive. Aliphatic polyurethanes have a relatively low modulus and are not prone to yellowing. Therefore, aliphatic isocyanates are preferably used.
The peeling strength is adjusted through the proportion of the component A and the component B, and a proper proportion is selected. Polyurethane resins are typically prepared by the polycondensation of a soft segment polyol and a hard segment isocyanate. The soft segment mainly imparts tack to the pressure sensitive adhesive, and the hard segment mainly imparts tack to the pressure sensitive adhesive. The proper proportion of the soft and hard chain segments can obtain good pasting effect on the skin, and the skin paste has proper cohesive strength, so that residual glue can not be left on the skin when the skin paste is stripped. The pressure-sensitive adhesive obtained by utilizing the hydrophilicity of the polyhydric alcohol and the sodium carboxymethyl cellulose has high moisture permeability. The viscosity of the mixed A component and B component is about 1500mps, the viscosity rises to about 12000mps within 60 minutes, and the glue with the viscosity of 1500 and 12000mps is suitable for scraper coating.
Reaction of isocyanates with hydroxyl groups
RNCO+R1-OH→RNHCOOR1
n OCN-R-NCO+n HO-R1-OH→[-CONH-R-NHCO-OR1-O-]n
The higher the isocyanate index, the harder the adhesive, the poorer the pressure-sensitive properties, and the lower the tack of the adhesive. The isocyanate index represents the ratio between the isocyanate and the polyol component. The isocyanate index of 100 means that the same molar amount of isocyanate groups and hydroxyl groups is available. To obtain low peel force adhesion suitable for application to skin, the isocyanate index is 39-49.
The invention has the beneficial effects that: according to the invention, the peeling strength is adjusted by the proportion of the component A and the component B, so that the obtained product has a good pasting effect on the skin and proper cohesive strength, and no residual adhesive is left on the skin during peeling; the pressure-sensitive adhesive prepared by utilizing the hydrophilicity of the polyalcohol and the sodium carboxymethyl cellulose has high moisture permeability; the viscosity of the mixture of the component A and the component B is about 1500mps, the viscosity is increased to about 12000mps within 60 minutes, and the glue with the viscosity of 1500 and 12000mps is suitable for scraper coating; the pressure-sensitive adhesive has the advantages of low peel strength, extremely low sensitization, ventilation, comfort and the like.
Detailed Description
The above-described scheme is further illustrated below with reference to specific examples. It should be understood that these examples are for illustrative purposes and are not intended to limit the scope of the present invention. The conditions used in the examples may be further adjusted according to the conditions of the particular manufacturer, and the conditions not specified are generally the conditions in routine experiments.
The present invention will be described in detail with reference to examples, but it should be understood that the examples described herein are only illustrative and not restrictive.
The catalyst of the component A is one or two of a bismuth-based catalyst and a zinc-based catalyst.
The component B is an aliphatic isocyanate prepolymer based on hexamethylene diisocyanate.
The polyol of component A preferably has a hydroxyl content of 30 to 40mg KOH/g polyol.
The isocyanate prepolymer of the component B is preferably isocyanate prepolymer with 10-15% of isocyanate group content.
Example 1
This example provides a high moisture permeable polyurethane pressure sensitive adhesive for skin,
1) adding catalyst 0.1-0.5% of polyalcohol and sodium carboxymethylcellulose 1-5% of polyalcohol into polyalcohol, stirring with a stirrer at 3000r/min for 10-30min to obtain component A;
2) mixing the component A and the component B obtained in the step 1) by a quantitative rubber mixing machine, wherein the mixing ratio is A, B is 9: 1; obtaining the pressure-sensitive adhesive;
3) coating by a scraper type coating machine, and adjusting the required glue amount;
4) performing heat curing through an oven, wherein the oven is 90-130 ℃;
5) and compounding the cured adhesive with a corresponding base material to prepare the corresponding dressing coiled material. The base material is 25 +/-3 g/m2A polyurethane film.
Example 2
This example provides a high moisture permeable polyurethane pressure sensitive adhesive for skin,
1) adding catalyst 0.1-0.5% of polyalcohol and sodium carboxymethylcellulose 1-5% of polyalcohol into polyalcohol, stirring with a stirrer at 3000r/min for 10-30min to obtain component A;
2) mixing the component A and the component B obtained in the step 1) by a quantitative rubber mixing machine, wherein the mixing ratio is A, B is 10: 1; obtaining the pressure-sensitive adhesive;
3) coating by a scraper type coating machine, and adjusting the required glue amount;
4) performing heat curing through an oven, wherein the oven is 90-130 ℃;
5) and compounding the cured adhesive with a corresponding base material to prepare the corresponding dressing coiled material. The base material is 25 +/-3 g/m2A polyurethane film.
Example 3
This example provides a high moisture permeable polyurethane pressure sensitive adhesive for skin,
1) adding catalyst 0.1-0.5% of polyalcohol and sodium carboxymethylcellulose 1-5% of polyalcohol into polyalcohol, stirring with a stirrer at 3000r/min for 10-30min to obtain component A;
2) mixing the component A and the component B obtained in the step 1) by a quantitative rubber mixing machine, wherein the mixing ratio is A, B is 11: 1; obtaining the pressure-sensitive adhesive;
3) coating by a scraper type coating machine, and adjusting the required glue amount;
4) performing heat curing through an oven, wherein the oven is 90-130 ℃;
5) and compounding the cured adhesive with a corresponding base material to prepare the corresponding dressing coiled material. The base material is 25 +/-3 g/m2A polyurethane film.
The only difference between comparative example 1 and example 1 is that the mass ratio of the a component to the B component is 8: 1.
The only difference between comparative example 2 and example 1 is that the mass ratio of the a component to the B component is 12: 1.
The amount of the gum used in examples 1 to 3 and comparative examples 1 to 2 was 30. + -.3 g/m2Polyurethane pressure-sensitive adhesive.
The dressing rolls obtained in examples 1-3 and the dressing rolls obtained in comparative example 1 and comparative example 2 were tested for peel strength by the test method for peel strength of GBT 2792-2014 adhesive tape, and the test results are shown in table 1.
TABLE 1 Peel Strength test results
As can be seen from Table 1, the patch was not curled well when applied to skin at 8:1 and had a large force value and residual glue when applied to skin at 12: 1. Therefore, the invention selects the mass ratio of the component A to the component B as follows: 1-11: 1, the product of the invention can be used in different use scenarios.
The dressing rolls obtained in examples 1-3 and the dressing rolls obtained in comparative example 1 and comparative example 2 were subjected to a water vapor transmission rate test by YYT 0471.2-2004 contact wound dressing test method part 2 breathable film dressing water vapor transmission rate, the test results of which are shown in table 2.
TABLE 2 test results
The moisture vapor transmission rate of the breathable film dressing obtained in example 1, the dressing roll made of the common acrylate pressure-sensitive adhesive and the high moisture permeable acrylate pressure-sensitive adhesive was tested by the moisture vapor transmission rate of the breathable film dressing in part 2 of the YYT 0471.2-2004 contact wound dressing test method, and the test results are shown in table 3.
TABLE 3 test results
As can be seen from Table 3, the water vapor transmission rate of the product of the invention is obviously superior to that of the common acrylate pressure-sensitive adhesive and the high-moisture-permeability acrylate pressure-sensitive adhesive, so that the pressure-sensitive adhesive obtained by the invention has high moisture permeability.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (8)
1. The high moisture-permeable polyurethane pressure-sensitive adhesive for the skin is characterized by being prepared by mixing a component A and a component B; the component A comprises polyalcohol, sodium carboxymethyl cellulose and a catalyst; the component B is isocyanate prepolymer; the mass ratio of the component A to the component B is 9: 1-11: 1.
2. the high moisture-permeable polyurethane pressure-sensitive adhesive for skin according to claim 1, wherein the polyol is a polyether polyol; the catalyst is one or two of a bismuth-based catalyst and a zinc-based catalyst.
3. The polyurethane pressure-sensitive adhesive with high moisture permeability for skin of claim 1, wherein the isocyanate prepolymer is an aliphatic isocyanate prepolymer based on hexamethylene diisocyanate.
4. The high moisture-permeable polyurethane pressure-sensitive adhesive for skin according to claim 2, wherein the polyol has a hydroxyl group content of 30-40mg KOH/g.
5. The high moisture-permeable polyurethane pressure-sensitive adhesive for skin according to claim 3, wherein the isocyanate prepolymer has an isocyanate group content of 10-15%.
6. The polyurethane pressure-sensitive adhesive with high moisture permeability for skin according to claim 1, wherein in the component A, the mass of the sodium carboxymethyl cellulose is 1-5% of that of the polyhydric alcohol, and the mass of the catalyst is 0.1-0.5% of that of the polyhydric alcohol.
7. The pressure-sensitive adhesive with high moisture permeability for skin as claimed in claim 1, wherein the viscosity of the mixture of the component A and the component B is 1500-.
8. The use method of the high moisture-permeable polyurethane pressure-sensitive adhesive for skin as claimed in claim 1, wherein the use method comprises the following steps:
1) adding catalyst 0.1-0.5% of polyalcohol and sodium carboxymethylcellulose 1-5% of polyalcohol into polyalcohol, stirring with a stirrer at 3000r/min for 10-30min to obtain component A;
2) mixing the component A and the component B obtained in the step 1) by a quantitative rubber mixing machine, wherein the mixing ratio is A, B is 9: 1-11: 1; obtaining the pressure-sensitive adhesive;
3) coating by a scraper type coating machine, and adjusting the required glue amount;
4) performing heat curing through an oven, wherein the oven is 90-130 ℃;
5) and compounding the cured adhesive with a corresponding base material to prepare the corresponding dressing coiled material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010565891.0A CN111718671A (en) | 2020-06-19 | 2020-06-19 | High-moisture-permeability polyurethane pressure-sensitive adhesive for skin and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010565891.0A CN111718671A (en) | 2020-06-19 | 2020-06-19 | High-moisture-permeability polyurethane pressure-sensitive adhesive for skin and use method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111718671A true CN111718671A (en) | 2020-09-29 |
Family
ID=72567771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010565891.0A Pending CN111718671A (en) | 2020-06-19 | 2020-06-19 | High-moisture-permeability polyurethane pressure-sensitive adhesive for skin and use method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111718671A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006182795A (en) * | 2004-12-24 | 2006-07-13 | Mitsubishi Chemicals Corp | Polyurethane pressure-sensitive adhesive composition, and pressure-sensitive adhesive sheet and surface-protecting film |
| CN101418192A (en) * | 2007-10-24 | 2009-04-29 | 天津大学 | Hydrophilicity hot melt type polyurethane contact adhesive and preparation method and use |
| CN104151522A (en) * | 2014-08-05 | 2014-11-19 | 苏州巨联科技有限公司 | Soft wet-method waterproof air-permeable water-permeable polyurethane resin and preparation method thereof |
| CN106753008A (en) * | 2016-12-22 | 2017-05-31 | 江西省台辰新材料有限公司 | A kind of preparation method for being vented glue and exhaust glue |
| CN108926428A (en) * | 2018-07-24 | 2018-12-04 | 河南汇博医疗股份有限公司 | Hydrocolloid applies core and preparation method thereof, bearing hydrocolloid dressing and application thereof |
-
2020
- 2020-06-19 CN CN202010565891.0A patent/CN111718671A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006182795A (en) * | 2004-12-24 | 2006-07-13 | Mitsubishi Chemicals Corp | Polyurethane pressure-sensitive adhesive composition, and pressure-sensitive adhesive sheet and surface-protecting film |
| CN101418192A (en) * | 2007-10-24 | 2009-04-29 | 天津大学 | Hydrophilicity hot melt type polyurethane contact adhesive and preparation method and use |
| CN104151522A (en) * | 2014-08-05 | 2014-11-19 | 苏州巨联科技有限公司 | Soft wet-method waterproof air-permeable water-permeable polyurethane resin and preparation method thereof |
| CN106753008A (en) * | 2016-12-22 | 2017-05-31 | 江西省台辰新材料有限公司 | A kind of preparation method for being vented glue and exhaust glue |
| CN108926428A (en) * | 2018-07-24 | 2018-12-04 | 河南汇博医疗股份有限公司 | Hydrocolloid applies core and preparation method thereof, bearing hydrocolloid dressing and application thereof |
Non-Patent Citations (3)
| Title |
|---|
| 中国纺织工程学会染整专业委员会: "《中国纺织工程学会 染整涂层及其他整理学术论文、资料选辑 1990》", 31 December 1990 * |
| 涂志刚等: "《塑料软包装材料》", 31 July 2018, 文化发展出版社 * |
| 熊野娟: "《药物制剂技术》", 30 September 2015, 复旦大学出版社 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101053168B1 (en) | Manufacturing method of leather type sheet | |
| EP0196749B1 (en) | Adhesive compositions | |
| JP3884995B2 (en) | Adhesive sheet for skin application | |
| CN101563381A (en) | Adhesive-forming composition and blend of adhesives obtained therefrom | |
| CN101632840B (en) | Bio-medical pressure-sensitive adhesive (PSA) and preparation method thereof | |
| CN111868195B (en) | Adhesive and synthetic leather | |
| CN107459960A (en) | A kind of environment-friendly type bi-component polyurethane adhesive and its preparation and application | |
| CN111533871B (en) | Composition for assisting in improving moisture permeability of polyurethane and polyurethane hot melt adhesive containing composition | |
| CN110564355A (en) | Bio-based polyurethane pressure-sensitive adhesive and preparation method thereof | |
| CN111995973A (en) | Low-peeling-force hot-melt pressure-sensitive adhesive special for white cotton cloth application and preparation method thereof | |
| CN111718671A (en) | High-moisture-permeability polyurethane pressure-sensitive adhesive for skin and use method thereof | |
| CN107779156A (en) | A kind of Aqueous Polyurethane Adhesives | |
| US5756572A (en) | Silicone pressure sensitive adhesive composition containing thermoplastic multi-segmented copolymer | |
| WO2021025093A1 (en) | Moisture-curable polyurethane hot-melt resin composition | |
| WO2019176941A1 (en) | Moisture curing hot melt adhesive and adhesive body | |
| JP2020081438A (en) | Medical pressure-sensitive adhesive composition and medical pressure-sensitive adhesive sheet | |
| CN114634767B (en) | Process for manufacturing and forming backlight module gum | |
| JP4203304B2 (en) | MEDICAL PRESSURE SENSITIVE ADHESIVE SHEET AND METHOD FOR PRODUCING THE SAME | |
| EP0667382A1 (en) | Silicone pressure sensitive adhesive composition containing thermoplastic multi-segmented copolymer | |
| CN112852325B (en) | PET composite polyester protective film and preparation method thereof | |
| TW201934702A (en) | Moisture-curable hot-melt adhesive and bonded article | |
| CN109852303A (en) | A kind of high temperature resistant double faced adhesive tape and preparation method | |
| CN112300744B (en) | Reactive polyurethane pressure-sensitive adhesive for fan blade protective sleeve | |
| CN112812728B (en) | Polyurethane adhesive and preparation method and application thereof | |
| CN113668285A (en) | High-adhesion paper organic silicon release agent and preparation method thereof |
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: 20200929 |
|
| RJ01 | Rejection of invention patent application after publication |