CN105419715B - A kind of preparation method of polypropylene aqueous polyurethane heat-seal adhesive - Google Patents
A kind of preparation method of polypropylene aqueous polyurethane heat-seal adhesive Download PDFInfo
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- CN105419715B CN105419715B CN201510951997.3A CN201510951997A CN105419715B CN 105419715 B CN105419715 B CN 105419715B CN 201510951997 A CN201510951997 A CN 201510951997A CN 105419715 B CN105419715 B CN 105419715B
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- 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
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- 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
- C08G18/0804—Manufacture of polymers containing ionic or ionogenic groups
- C08G18/0819—Manufacture of polymers containing ionic or ionogenic groups containing anionic or anionogenic groups
- C08G18/0823—Manufacture of polymers containing ionic or ionogenic groups containing anionic or anionogenic groups containing carboxylate salt groups or groups forming them
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- 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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
- C08G18/3203—Polyhydroxy compounds
- C08G18/3206—Polyhydroxy compounds aliphatic
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/34—Carboxylic acids; Esters thereof with monohydroxyl compounds
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- 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
- C08G18/4018—Mixtures of compounds of group C08G18/42 with compounds of group C08G18/48
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- 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
- C08G18/6603—Compounds of groups C08G18/42, C08G18/48, or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/6607—Compounds of groups C08G18/42, C08G18/48, or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
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- 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
- C08G18/6603—Compounds of groups C08G18/42, C08G18/48, or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/6614—Compounds of groups C08G18/42, C08G18/48, or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3225 or C08G18/3271 and/or polyamines of C08G18/38
- C08G18/6618—Compounds of groups C08G18/42, C08G18/48, or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3225 or C08G18/3271 and/or polyamines of C08G18/38 with compounds of group C08G18/3225 or polyamines of C08G18/38
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- 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
- C08G18/6625—Compounds of groups C08G18/42, C08G18/48, or C08G18/52 with compounds of group C08G18/34
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- 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
- C08G2190/00—Compositions for sealing or packing joints
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Polyurethanes Or Polyureas (AREA)
- Laminated Bodies (AREA)
- Wrappers (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Sealing Material Composition (AREA)
Abstract
A kind of preparation method of polypropylene aqueous polyurethane heat-seal adhesive.Its step is：With polyester diol, polyether Glycols, hydrophilic chain extender, diisocyanate, small molecule glycol, small molecule polyol reaction generation NCO end group performed polymers；After being neutralized with organic amine plus tap water is emulsified into aqueous polyurethane dispersing liquid；Finally plus after ethylenediamine chain extension obtains product.Aqueous polyurethane heat-seal adhesive of the present invention has preferable intensity for heat-sealing polypropylene sheet material.Being used in aluminium foil coating has the advantages that adhesion strength is high, Painting effect is good, uncoiling performance is good, viscosity is low etc..Blister package field is used it for, is conducive to the diversification of blister package form, can greatly promote the development of novel aluminium-plastic bubble plate packing form.
Description
Technical field
Gathered the present invention relates to food, the preparation of drug blister package hot melt adhesive more particularly to a kind of polypropylene with aqueous
The preparation method of urethane heat-seal adhesive.
Background technology
Blister package application is very extensive, be flexible packing material with fastest developing speed in recent years and food, health products,
The main packaged form in other fields such as drug.In Key works Drug packing, it is that drug is placed in the plastic hard plate through plastics sucking moulding
Bubble-cap in, then the aluminium foil for being coated with hot melt adhesive with one seals with the plastic bubble cap, so as to play the work of protection drug
With.
The material overwhelming majority used in blister package at present into bubble basis is polychlorovinyl sheet material, and blister package is covered
Cover material is essentially all aluminium foil, commonly referred to as PTP aluminium foils.The general structure of PTP aluminium foils is：Protective layer/aluminium foil layer/bonding
Layer.The hot melt adhesive of wherein adhesive layer coating is commonly referred to as VC agent, usually vinyl chloride-vinyl acetate copolymer and some increasings
Viscosity resin forms.
Diversification and the requirement increasingly strict to organic halogen content in packaging material with packaged form, increasingly
More is paid close attention into bubble base material by everybody.Wherein polypropylene material has many advantages, such as compared with pvc material, but due to
The nonpolarity of polypropylene material, traditional VC agent are unable to heat-sealing polypropylene material, we seek all over can seal in the market with polypropylene
Glue, find type it is especially few, water-base cement is then less.
Invention content
It can be with polypropylene material the technical problems to be solved in view of the defects of the present invention is to propose one kind
Cohesive aqueous polyurethane heat-seal adhesive is carried out, and provides the preparation method of the polypropylene aqueous polyurethane heat-seal adhesive.
The technical problem to be solved by the present invention is to what is be achieved through the following technical solutions, a kind of aqueous poly- ammonia of polypropylene
The preparation method of ester heat-seal adhesive, its main feature is that including the following steps：
A. polyester diol, polyether Glycols, hydrophilic chain extender, small molecule glycol, small molecule polyol and two isocyanides are used
Acid esters reacts, generation-NCO end group performed polymers；
B.-NCO end group performed polymers are neutralized with organic amine and obtains-NCO end groups from aggressiveness；
C. with the above-mentioned-NCO end groups of originally water emulsification aqueous polyurethane emulsion is obtained from aggressiveness；
D. chain extension after addition ethylenediamine, obtains polypropylene aqueous polyurethane heat-seal adhesive；
In the preparation method, every raw material ratio of components is as follows：Polyester diol and the molar ratio of polyether Glycols are 1:
2-4；In diisocyanate-NCO group and polyester, polyether Glycols in the molar ratios of-OH groups be 3-4:1；Hydrophily chain extension
The mass fraction that agent accounts for total performed polymer is 3-6%；The mass fraction that small molecule glycol accounts for total performed polymer is 1-3%；Small molecule is more
The mass fraction that first alcohol accounts for total performed polymer is 0.1-0.5%；Hydrophilic chain extender and the molar ratio of organic amine are 1：0.7-1；From
The mass ratio of water and polyester, polyether Glycols is 3-4:1;
In above-mentioned preparation method, the polyester diol be polyethylene glycol adipate, poly adipate succinic acid ester,
Any one in polyadipate hexylene glycol ester or polyneopentyl glycol adipate.
The polyether Glycols are appointing in Polyoxyethylene glycol, polyoxypropyleneglycol, polytetrahydrofuran diol
Meaning is a kind of.
The diisocyanate is any one in TDI, IPDI, MDI, HDI.
The hydrophilic chain extender is any one in dihydromethyl propionic acid, dimethylolpropionic acid, dihydroxymethyl half ester
Kind.
The small molecule glycol is any one in ethylene glycol, 1,3- propylene glycol, 1,4- butanediols, 1,6-HD
Kind.
The small molecule polyol is any one in glycerine, trimethylolpropane, pentaerythrite.
The organic amine is triethylamine, N, any one in N- dimethylethanolamines, diethylenetriamine.
Compared with prior art, the present invention the present invention has filled up the blank in market, providing one kind can be with polypropylene material
Expect the aqueous polyurethane heat-seal adhesive of heat-sealing, meet the needs of heat-sealing polypropylene sheet material.Aqueous polyurethane heat-sealing of the present invention
Glue has preferable intensity for heat-sealing polypropylene sheet material；Be used in aluminium foil coating have adhesion strength is high, Painting effect is good,
The advantages such as uncoiling performance is good, viscosity is low.Blister package field is used it for, is conducive to the diversification of blister package form, it can be with
Greatly promote the development of novel aluminium-plastic bubble plate packing form.
Specific embodiment
A kind of polypropylene preparation method of aqueous polyurethane heat-seal adhesive, includes the following steps：
A. polyester diol, polyether Glycols, hydrophilic chain extender, small molecule glycol, small molecule polyol and two isocyanides are used
Acid esters reacts, generation-NCO end group performed polymers；
B.-NCO end group performed polymers are neutralized with organic amine and obtains-NCO end groups from aggressiveness；
C. with the above-mentioned-NCO end groups of originally water emulsification aqueous polyurethane emulsion is obtained from aggressiveness；
D. chain extension after addition ethylenediamine, obtains polypropylene aqueous polyurethane heat-seal adhesive.
In the preparation method, every raw material ratio of components is as follows：Polyester diol and the molar ratio of polyether Glycols are 1:
2-4；In diisocyanate-NCO group and polyester, polyether Glycols in the molar ratios of-OH groups be 3-4:1；Hydrophily chain extension
The mass fraction that agent accounts for total performed polymer is 3-6%；The mass fraction that small molecule glycol accounts for total performed polymer is 1-3%；Small molecule is more
The mass fraction that first alcohol accounts for total performed polymer is 0.1-0.5%；Hydrophilic chain extender and the molar ratio of organic amine are 1：0.7-1；From
The mass ratio of water and polyester, polyether Glycols is 3-4:1.
Above-mentioned preparation method, the polyester diol are polyethylene glycol adipates, poly adipate succinic acid ester, gather
One kind in adipic acid hexylene glycol ester or polyneopentyl glycol adipate；The polyether Glycols be Polyoxyethylene glycol,
One kind in polyoxypropyleneglycol, polytetrahydrofuran diol；The diisocyanate is in TDI, IPDI, MDI, HDI
It is a kind of；The hydrophilic chain extender is one kind in dihydromethyl propionic acid, dimethylolpropionic acid, dihydroxymethyl half ester；It is described
Small molecule glycol be one kind in ethylene glycol, 1,3- propylene glycol, 1,4- butanediols, 1,6-HD；The small molecule is more
First alcohol is one kind in glycerine, trimethylolpropane, pentaerythrite；The organic amine is triethylamine, N, N- dimethyl ethanols
One kind in amine, diethylenetriamine.
It is just of the invention for example, but not being limitation of the present invention below.Embodiment 1-3 is the aqueous poly- ammonia of polypropylene
The preparation and performance test of ester heat-seal adhesive.
Embodiment 1
Equipped with blender, thermometer, reflux condenser reactor in, add in polyadipate hexylene glycol 10g, polyoxygenated
Propylene glycol 30g, isophorone diisocyanate 19g, dihydromethyl propionic acid 3.4g add in 0.2g trimethylolpropanes, add in
1.6g1,4- butanediol are warming up to 80 DEG C, react 4 hours, are cooled to 50 DEG C, and adding in 2.04g triethylamines is neutralized into performed polymer
From aggressiveness, deionized water 137g emulsifications are then added under high speed shear, chain extension after 0.94g ethylenediamines is added in, obtains blueing light
More as clear as crystal aqueous polyurethane dispersion.
Obtained polypropylene is coated on 0.02um hard aluminium foils after drying with aqueous polyurethane heat-seal adhesive on heat-sealing instrument
It is sealed with crystalline p p sheet（Heat seal condition 0.2MPa, 170 DEG C, 1s）, measure its heat seal strength and reach 7.5N/15mm.
Embodiment 2
Equipped with blender, thermometer, reflux condenser reactor in, add in polyadipate hexylene glycol 20g, poly- tetrahydrochysene
Furans glycol 20g, isophorone diisocyanate 18.5g, dihydromethyl propionic acid 3.2g add in 0.15g trimethylolpropanes, add
Enter 1.66g1,4- butanediols are warming up to 80 DEG C, react 4 hours, are cooled to 50 DEG C, and adding in 1.93g triethylamines neutralizes performed polymer
Into from aggressiveness, deionized water 130g emulsifications are then added under high speed shear, chain extension after 0.87g ethylenediamines is added in, obtains blueing
The more as clear as crystal aqueous polyurethane dispersion of light.
Obtained polypropylene is coated on 0.02um hard aluminium foils after drying with aqueous polyurethane heat-seal adhesive on heat-sealing instrument
It is sealed with crystalline p p sheet（Heat seal condition 0.2MPa, 170 DEG C, 1s）, measure its heat seal strength and reach 8N/15mm.
Embodiment 3
Equipped with blender, thermometer, reflux condenser reactor in, add in polyadipate hexylene glycol 10g, poly- tetrahydrochysene
Furans glycol 30g, isophorone diisocyanate 16g, dihydromethyl propionic acid 3.14g add in 0.22g trimethylolpropanes, add
Enter 1.68g1,4- butanediols are warming up to 80 DEG C, react 4 hours, are cooled to 50 DEG C, add in 1.67gN, and N dimethyl ethanol amine makes
Performed polymer is neutralized into from aggressiveness, and deionized water 140g emulsifications are then added under high speed shear, are expanded after adding in 0.79g ethylenediamines
Chain obtains the more as clear as crystal aqueous polyurethane dispersion of blueing light.
Obtained polypropylene is coated on 0.02um hard aluminium foils after drying with aqueous polyurethane heat-seal adhesive on heat-sealing instrument
It is sealed with crystalline p p sheet（Heat seal condition 0.2MPa, 170 DEG C, 1s）, measure its heat seal strength and reach 8.5N/15mm.
Claims (8)
1. a kind of polypropylene preparation method of aqueous polyurethane heat-seal adhesive, it is characterised in that include the following steps：
A. polyester diol, polyether Glycols, hydrophilic chain extender, small molecule glycol, small molecule polyol and diisocyanate are used
Reaction, generation-NCO end group performed polymers；
B.-NCO end group performed polymers are neutralized with organic amine and obtains-NCO end groups from aggressiveness；
C. with the above-mentioned-NCO end groups of originally water emulsification aqueous polyurethane emulsion is obtained from aggressiveness；
D. chain extension after addition ethylenediamine, obtains polypropylene aqueous polyurethane heat-seal adhesive；
In the preparation method, every raw material ratio of components is as follows：Polyester diol and the molar ratio of polyether Glycols are 1:2-4；
In diisocyanate-NCO group and polyester, polyether Glycols in the molar ratios of-OH groups be 3-4:1；Hydrophilic chain extender accounts for
The mass fraction of total performed polymer is 3-6%；The mass fraction that small molecule glycol accounts for total performed polymer is 1-3%；Small molecule polyol
The mass fraction for accounting for total performed polymer is 0.1-0.5%；Hydrophilic chain extender and the molar ratio of organic amine are 1：0.7-1；Tap water
Mass ratio with polyester, polyether Glycols is 3-4:1.
2. the polypropylene according to claim 1 preparation method of aqueous polyurethane heat-seal adhesive, it is characterised in that：Described
Polyester diol is polyethylene glycol adipate, poly adipate succinic acid ester, polyadipate hexylene glycol ester or polyadipate new penta
Any one in diol ester.
3. the polypropylene according to claim 1 preparation method of aqueous polyurethane heat-seal adhesive, the polyether Glycols
It is any one in Polyoxyethylene glycol, polyoxypropyleneglycol, polytetrahydrofuran diol.
4. the polypropylene according to claim 1 preparation method of aqueous polyurethane heat-seal adhesive, the diisocyanate
It is any one in TDI, IPDI, MDI, HDI.
5. the polypropylene according to claim 1 preparation method of aqueous polyurethane heat-seal adhesive, the hydrophily chain extension
Agent is any one in dihydromethyl propionic acid, dimethylolpropionic acid, dihydroxymethyl half ester.
6. the polypropylene according to claim 1 preparation method of aqueous polyurethane heat-seal adhesive, the small molecule glycol
It is any one in ethylene glycol, 1,3- propylene glycol, 1,4- butanediols, 1,6-HD.
7. the polypropylene according to claim 1 preparation method of aqueous polyurethane heat-seal adhesive, the small molecule are polynary
Alcohol is any one in glycerine, trimethylolpropane, pentaerythrite.
8. the polypropylene according to claim 1 preparation method of aqueous polyurethane heat-seal adhesive, the organic amine are three
Ethamine, N, any one in N- dimethylethanolamines, diethylenetriamine.
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| CN201510951997.3A CN105419715B (en) | 2015-12-16 | 2015-12-16 | A kind of preparation method of polypropylene aqueous polyurethane heat-seal adhesive |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105949427A (en) * | 2016-06-26 | 2016-09-21 | 江阴市诺科科技有限公司 | Low-modulus slow-recovery water-based polyurethane |
| CN106221646B (en) * | 2016-08-23 | 2020-01-17 | 上海乘鹰新材料有限公司 | Water-based heat-sealing adhesive for medicine bubble cap and preparation method thereof |
| CN106590507A (en) * | 2016-12-13 | 2017-04-26 | 西安大天新材料有限公司 | Waterborne hot-seal adhesive for medicine packaging and preparation method of waterborne hot-seal adhesive |
| CN108102036A (en) * | 2017-12-18 | 2018-06-01 | 广州聚碳合成材料有限公司 | Aqueous acrylic modified polyurethane resin and preparation method thereof and aqueous heat-seal adhesive |
| CN110126355A (en) * | 2019-05-15 | 2019-08-16 | 昆明金津塑料包装印刷有限公司 | A kind of tissue paper coating bag making production technology |
| CN111718469A (en) * | 2020-06-17 | 2020-09-29 | 北京华腾新材料股份有限公司 | Waterborne polyurethane, preparation method thereof and heat-sealing adhesive |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1854165A (en) * | 2005-04-20 | 2006-11-01 | 广州宏昌胶粘带厂 | Organic silicon modified aqueous polyurethane |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1854165A (en) * | 2005-04-20 | 2006-11-01 | 广州宏昌胶粘带厂 | Organic silicon modified aqueous polyurethane |
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