CN108997965A - A kind of reactive polyurethane hot melt and preparation method thereof - Google Patents
A kind of reactive polyurethane hot melt and preparation method thereof Download PDFInfo
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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
- C08G18/28—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
- C08G18/38—Low-molecular-weight compounds having heteroatoms other than oxygen
- C08G18/3893—Low-molecular-weight compounds having heteroatoms other than oxygen containing silicon
-
- 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
- C08G18/4063—Mixtures of compounds of group C08G18/62 with other macromolecular compounds
-
- 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
- C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
-
- 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
- C08G18/62—Polymers of compounds having carbon-to-carbon double bonds
- C08G18/6216—Polymers of alpha-beta ethylenically unsaturated carboxylic acids or of derivatives thereof
- C08G18/622—Polymers of esters of alpha-beta ethylenically unsaturated carboxylic acids
- C08G18/6225—Polymers of esters of acrylic or methacrylic acid
-
- 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
Abstract
The invention discloses a kind of reactive polyurethane hot melts, it is composed of the following raw materials in parts by weight: 30~60 parts of polyether polyol, 20~40 parts of polyester polyol, 10~20 parts of polyisocyanates, terminal hydroxy group acrylate -0.5~20 part of carbonic ester copolymer resins, enhance 0.5~4 part of auxiliary agent, 0.05~0.5 part of catalyst of water resistance.The present invention also provides the preparation methods of reactive polyurethane hot melt.Reactive polyurethane hot melt prepared by the present invention has outstanding cementability to plastics, metal, timber, glass etc., it is good to the low-surface-energy materials such as PP, PE bonding, and there is good heat resistance, it is especially superior to the tolerance of water or moisture, it may be applicable to be bonded low-surface-energy material very well and may be chronically at hot, water or wet gas environments field, suitable for the fields such as automobile manufacture, carpenter's household electrical appliances, architectural engineering, electronic apparatus, wide market.
Description
Technical field
The invention belongs to reactive polyurethane hot melt technical fields, and particularly, the present invention relates to a kind of pair of low-surface-energies
Plastics have the reactive polyurethane hot melt and preparation method thereof of high strength bonding and resistance to immersion effect.
Background technique
Reactive polyurethane hot melt (PUR) is a kind of with excellent initial adhesive strength, quick fixation, cross-linkable solidifying
Reactive adhesive, and be also equipped with heat-resisting, durable, characteristics such as viscous intensity height eventually, development is swift and violent, building, machinery, automobile,
The industries such as electronics have high application value.
How to improve under complex environment is a great problem that PUR is faced, these rings to the bonding of low-surface-energy plastics
Border include: wet gas environments, immersion, prolonged external light source irradiation and compared with operation at high temperature (part up to 100 degrees Celsius with
On).
Patent of invention CN00800226.6 has synthesized isocyanate group linear polyester pre-polymerization by the use of block agent
Body, the PUR stable storing with high molecular weight diol collocation preparation, just glues.
Patent of invention CN201410827600.5 describes a kind of reaction type polyurethane hot-melt adhesive and preparation method thereof, mainly
Including polyether polyol, polyester polyol, tackifying resin and response type wax, melting viscosity is low, initial adhesive strength is high, final removing
Intensity is good.
Patent of invention CN201610834219.0 passes through addition thermoplastic synthetic resin, phenolic resin or terpene resin thickening
The PUR bonding of agent and silane coupling agent preparation is strong, viscosity stabilization.
Patent of invention CN201210333834.5 describes a kind of reactive polyurethane hot melt and preparation method thereof, utilizes
PUR made from poly- alkylene glycols, olefin monomer and polymer, tackifying resin improves viscous to the edge sealing of low-surface-energy plastics
It connects.
Patent of invention CN201711291104.2 has invented a kind of reaction type polyurethane hot-melt adhesive, passes through modifying agent and chain extension
Agent compounding, obtains uncured preceding good water permeability, high temperature without trickling, deep and firm fast hot melt adhesive.
By being invented above as can be seen that being also difficult to obtain currently on the market can guarantee in immersion, high wet steam and high temperature punching
With the PUR of good adhesive property in the environment of hitting.Such as adhesive strength conservation rate one after soaking and being acted on by high temperature moisture
As be extremely difficult to 70%, water penetration is too strong after solidification, is gone wrong under hygrothermal environment using being particularly susceptible.In addition, manufacturing
Or in use process, the case where gluing member is subjected to cooling thermal impact, is also more and more common, and common polyurethane hot melt is due to it
The application of high-crystallinity polyester hard section, modulus is very high, is easy to degumming by cooling thermal impact, needs by reducing mould
Amount, raising adhesive strength solve the problems, such as this.
Summary of the invention
There is good bonding one of the objects of the present invention is to provide one kind and water-fast, wet-heat resisting, resistant of high or low temperature are good
Reactive polyurethane hot melt.
The present invention is implemented as follows:
A kind of reactive polyurethane hot melt is made of the raw material of following parts by weight:
30~60 parts of polyether polyol, 20~40 parts of polyester polyol, 10~20 parts of polyisocyanates, terminal hydroxy group acrylic acid
Ester~0.5~20 part of carbonic ester copolymer resins, enhances 0.5~5 part of auxiliary agent of water resistance, and 0.05~0.5 part of catalyst.
Further scheme is:
The reactive polyurethane hot melt is made of the raw material of following parts by weight:
45~50 parts of polyether polyol, 25~30 parts of polyester polyol, 12~16 parts of polyisocyanates, terminal hydroxy group acrylic acid
Ester~10~12 parts of carbonic ester copolymer resins, enhances 1~3 part of auxiliary agent of water resistance, and 0.05~0.5 part of catalyst.
Further scheme is:
The polyether polyol is the polypropylene glycol of number-average molecular weight 1000~4000, polytetramethylene ether diol, gathers
Ethylene glycol is one such or several；
Further scheme is:
The polyester polyol is aliphatic polyester binary alcohol (such as poly- hexanedioic acid polyester of number-average molecular weight 2000~4000
Glycol, polycarbonate, polyester glycol), aromatic polyester polyol (such as phthalate polyester glycol, benzoic anhydride polyester polyol) wherein
One or more
Further scheme is:
The polyisocyanates is methyl diphenylene diisocyanate, hexamethylene diisocyanate, toluene diisocynate
Ester is one such or several.
Further scheme is:
Terminal hydroxy group acrylate-carbonic ester the copolymer resins are self-control, and it is acrylic acid first that molecular weight, which is 1000~3000,
Ester, ethyl acrylate or butyl acrylate are one of or several, then press 1:(1.05x+ with bisphenol-A and diphenyl carbonate
1.05): the copolymerization of x ratio is made, wherein x=2~7.
Further scheme is:
The auxiliary agent of the enhancing water resistance has the following structure:
Wherein: R1 is hydroxyl or amino, and R2 is the segment with ester group, ether, carbamate groups, alkenyl or alkyl,
R3 is hydroxyl, methoxyl group, ethyoxyl or propoxyl group, and A is pentane or butane segment
Further scheme is:
The catalyst is dibutyl tin dilaurate, dibutyltin diacetate, triethylenediamine, double morpholinyl diethyls
One or more of base ether.
Reactive polyurethane hot melt provided by the invention, its main feature is that polyethers, high-crystallinity polyester-type composite polyurethane
Structure has high tensile strength and elongation, and mechanical property is splendid, and polyethers addition excessively will affect the open hour of hot melt adhesive；
The bonding to the cated plastic material in surface can be enhanced in the introducing of terminal hydroxy group acrylate-carbonic ester copolymer resins, such as band
The polycarbonate of coating；Polyisocyanates as crosslinking agent, type and dosage can open hour to hot melt adhesive, viscosity and
Cementability has an impact；Catalyst can individually or be used in compounding, and can play catalysis isocyanates and hydroxyl and moisture
Reaction, promote crosslinking curing；The siloxy that the auxiliary agent side chain for the enhancing water resistance added on a small quantity has reduces hot melt adhesive
Surface energy and modulus, can migrate to bonding interface and play the role of refusing moisture, while can be to isocyanate-terminated polyurethane prepolymer
Body carries out chain extending reaction, enhances the heat resistance of system, and the alkoxy grp of this auxiliary agent can be with the hydroxyl that is glued material surface
Equal groups reaction, generates firm chemical bond, enhances in the bonding under by steam and heated operative condition.
It is another object of the present invention to provide the preparation methods of reactive polyurethane hot melt of the invention.
The preparation method of reactive polyurethane hot melt of the invention, includes the following steps:
Step 1: by polyether polyol, polyester polyol, terminal hydroxy group acrylate-carbonic ester copolymer resins by metering ratio
It puts into reaction kettle, is heated to 110~140 DEG C, stir vacuum dehydration 1.5~3 hours lower.
Step 2: being cooled to 80~100 DEG C in N2Protection is lower to put into isocyanates, in 85~140 DEG C, N2The lower stirring of protection
Reaction 0.5~1.5 hour, generates isocyanate-terminated base polyurethane prepolymer for use as.
Step 3: lower auxiliary agent, the catalyst that enhancing water resistance is added of nitrogen atmosphere protection, vacuumizes at 85~140 DEG C and stirs
It mixes 0.5~1.5 hour, preferentially with performed polymer chain extending reaction occurs for auxiliary agent under the action of catalyst, discharges up to the poly- ammonia of reactivity
Ester hot melt adhesive.
Reactive polyurethane hot melt prepared by the present invention has outstanding bonding to plastics, metal, timber, glass etc.
Property, the low-surface-energy materials such as PP, PE are bonded well, and there is good heat resistance, it is good to the tolerance of water or moisture,
It may be applicable to be bonded low-surface-energy material very well and may be chronically at hot, water or wet gas environments field, fit
For fields such as automobile manufacture, carpenter's household electrical appliances, architectural engineering, electronic apparatus, have wide range of applications.
Specific embodiment
The present invention is further illustrated combined with specific embodiments below.
Embodiment 1
The reactive polyurethane hot melt of the present embodiment, raw material composition are as follows:
| Raw material | Parts by weight |
| Polypropylene glycol Mn=2000 | 45 |
| Poly- hexanedioic acid polyester-diol Mn=3000 | 32 |
| Toluene di-isocyanate(TDI) | 16 |
| Terminal hydroxy group acrylate-carbonic ester copolymer resins Mn=2500 | 5.5 |
| Enhance the auxiliary agent 1 of water resistance | 1.25 |
| Dibutyl tin dilaurate, dibutyltin diacetate (weight ratio 1:2 mixture) | 0.25 |
Wherein: enhancing 1 structure of auxiliary agent of water resistance are as follows:
The preparation method of the reactive polyurethane hot melt of the present embodiment is according to the following steps:
Step 1: by polypropylene glycol, poly- hexanedioic acid polyester-diol, terminal hydroxy group acrylate-carbonic ester copolymer resins based on
Amount stirs vacuum dehydration 2 hours lower than heating 120 DEG C in investment reaction kettle.
Step 2: 100 DEG C of investment toluene di-isocyanate(TDI)s are cooled to, in N2It is stirred to react 1 hour under protection in 100 DEG C.
Step 3: the auxiliary agent 1 of enhancing water resistance, dibutyl tin dilaurate, dibutyltin diacetate (1:2 mixing is added
Object), stirring is vacuumized, is stirred to react at 110 DEG C 1 hour.Discharging obtains hot melt adhesive 1.
Embodiment 2
The reactive polyurethane hot melt of the present embodiment, raw material composition are as follows:
Wherein: enhancing 2 structure of auxiliary agent of water resistance are as follows:
The present embodiment preparation method is according to the following steps:
Step 1: by polypropylene glycol, poly- hexanedioic acid polyester-diol, terminal hydroxy group acrylate-carbonic ester copolymer resins based on
Amount stirs vacuum dehydration 1.5 hours lower than heating 140 DEG C in investment reaction kettle.
Step 2: 100 DEG C of investment methyl diphenylene diisocyanates are cooled to, in N21 is stirred to react in 90 DEG C under protection
Hour.
Step 3: auxiliary agent 3, the dual-morpholinyl diethyl ether of enhancing water resistance is added, stirring 1 hour is vacuumized at 120 DEG C,
It discharges up to hot melt adhesive 3.
Comparative example 1
The raw material of this comparative example forms:
| Raw material | Parts by weight |
| Polypropylene glycol Mn=2000 | 50 |
| Poly- hexanedioic acid polyester-diol Mn=4000 | 21.5 |
| Methyl diphenylene diisocyanate | 14 |
| Terminal hydroxy group acrylate-carbonic ester copolymer resins Mn about 2000 | 14 |
| Dual-morpholinyl diethyl ether | 0.5 |
This comparative example preparation method is according to the following steps:
Step 1: by polypropylene glycol, poly- hexanedioic acid polyester-diol, terminal hydroxy group acrylate-carbonic ester copolymer resins based on
Amount stirs vacuum dehydration 3 hours lower than heating 130 DEG C in investment reaction kettle.
Step 2: 100 DEG C of investment methyl diphenylene diisocyanates are cooled to, in N21 is stirred to react in 100 DEG C under protection
Hour.
Step 3: dual-morpholinyl diethyl ether is added, stirring 1 hour is vacuumized at 130 DEG C, is discharged up to comparison glue 1.
Comparative example 2
The raw material of this comparative example forms:
| Raw material | Parts by weight |
| Polypropylene glycol Mn=2000 | 54.5 |
| Phthalate polyester glycol Mn=3500 | 30.25 |
| Hexamethylene diisocyanate | 15 |
| Dual-morpholinyl diethyl ether | 0.25 |
This comparative example preparation method is according to the following steps:
Step 1: by polypropylene glycol, phthalate polyester glycol by metering than heating 120 DEG C, stirring in investment reaction kettle
Lower vacuum dehydration 2 hours.
Step 2: 80 DEG C of investment hexamethylene diisocyanates are cooled to, in N2It is small that in 80 DEG C 1 is stirred to react under protection
When.
Step 3: dual-morpholinyl diethyl ether is added, stirring 1 hour is vacuumized at 100 DEG C, is discharged up to comparison glue 2.
Embodiment and comparative example shear strength test result are as follows:
1. standard state is 25 ± 2 DEG C of temperature, humidity 50 ± 5%；2. adhering object is surface plasma modifying processing PP piece.
It can be seen from the above result that being copolymerized by highly crystalline polyester polyether polyurethane and terminal hydroxy group acrylate-carbonic ester
Resin, the compounding for the auxiliary agent for enhancing water resistance are available with good adhesion, and can be in high temperature, ultraviolet irradiation, immersion
The reactive polyurethane hot melt of high conservation rate is maintained under equal environment.From comparative example 2, it can be seen that, simple polyester polyether-type is poly-
It is low that urethane hot melt adhesive standard state conserves lower shear bond strength；Comparative example 1 is cut after acrylate-carbonic ester copolymer resins are added
It cuts adhesive strength to be obviously improved, shows good tackifying effect, but intensity decline is very big after immersion processing, reaches 57%
The range of decrease, be unfavorable for using；It can be seen that not only properties from the embodiment 1,2 that a certain amount of enhancing water resistance auxiliary agent is added
Enhanced, and soak after shear strength conservation rate be obviously improved, conservation rate is up to 85%, play enhance well it is resistance to
Aqueous effect.
Although reference be made herein to invention has been described for explanatory embodiment of the invention, and above-described embodiment is only this hair
Bright preferable embodiment, embodiment of the present invention are not limited by the above embodiments, it should be appreciated that those skilled in the art
Member can be designed that a lot of other modification and implementations, these modifications and implementations will fall in principle disclosed in the present application
Within scope and spirit.
Claims (10)
1. a kind of reactive polyurethane hot melt, which is characterized in that the hot melt adhesive is made of the raw material of following parts by weight:
30~60 parts of polyether polyol, 20~40 parts of polyester polyol, 10~20 parts of polyisocyanates, terminal hydroxy group acrylate-
0.5~20 part of carbonic ester copolymer resins, enhance 0.5~4 part of auxiliary agent of water resistance, 0.05~0.5 part of catalyst.
2. reactive polyurethane hot melt according to claim 1, which is characterized in that the hot melt adhesive is by following parts by weight
Raw material composition:
45~50 parts of polyether polyol, 25~30 parts of polyester polyol, 12~16 parts of polyisocyanates, terminal hydroxy group acrylate-
10~12 parts of carbonic ester copolymer resins, enhance 1~2 part of auxiliary agent of water resistance, 0.05~0.5 part of catalyst.
3. reactive polyurethane hot melt according to claim 1 or 2, which is characterized in that the polyether polyol number is equal
Molecular weight is 1000~4000, including one or more of polypropylene glycol, polytetramethylene ether diol, polyethylene glycol；
4. reactive polyurethane hot melt according to claim 1 or 2, which is characterized in that the polyester polyol number is equal
Molecular weight is 2000~4000, including one or more of aliphatic polyester binary alcohol, aromatic polyester polyol.
5. reactive polyurethane hot melt according to claim 4, which is characterized in that the aliphatic polyester binary alcohol is poly-
Hexanedioic acid polyester-diol or polycarbonate, polyester glycol, the aromatic polyester polyol are that phthalate polyester glycol or phthalic anhydride are poly-
Ester polyol.
6. reactive polyurethane hot melt according to claim 1 or 2, which is characterized in that the polyisocyanates is two
One or more of methylenebis phenyl isocyanate, hexamethylene diisocyanate, toluene di-isocyanate(TDI).
7. reactive polyurethane hot melt according to claim 1 or 2, which is characterized in that the terminal hydroxy group acrylate-
Carbonic ester copolymer resins are self-control, are that methyl acrylate, ethyl acrylate or butyl acrylate are one of or several, then with it is double
Phenol A and diphenyl carbonate are in 1:(1.05x+1.05): the copolymerization of x ratio is made, wherein x=2~7, and molecular weight is 1000~3000.
8. reactive polyurethane hot melt according to claim 1 or 2, which is characterized in that the enhancing water resistance helps
Agent structure are as follows:
Wherein: R1 is hydroxyl or amino, and R2 is the segment with ester group, ether, carbamate groups, alkenyl or alkyl, and R3 is
Hydroxyl, methoxyl group, ethyoxyl or propoxyl group, A are pentane or butane segment.
9. reactive polyurethane hot melt according to claim 1 or 2, which is characterized in that the catalyst is two laurels
One or more of sour dibutyl tin, dibutyltin diacetate, triethylenediamine, dual-morpholinyl diethyl ether.
10. the preparation method of reactive polyurethane hot melt described in claim 1 to 9 any claim, it is characterised in that
Include the following steps:
Step 1: by polyether polyol, polyester polyol, terminal hydroxy group acrylate-carbonic ester copolymer resins by metering than investment
In reaction kettle, 110~140 DEG C are heated to, is stirred vacuum dehydration 1.5~3 hours lower；
Step 2: being cooled to 80~100 DEG C in N2Protection is lower to put into isocyanates, in 85~140 DEG C, N2It is stirred to react under protection
0.5~1.5 hour；
Step 3: auxiliary agent, the catalyst of enhancing water resistance is added, stirring is vacuumized 0.5~1.5 hour at 85~140 DEG C, is discharged
Up to reactive polyurethane hot melt.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109852319A (en) * | 2019-03-15 | 2019-06-07 | 苏州凡络新材料科技有限公司 | A kind of polyurethane hot melt and preparation method thereof |
| CN111073581A (en) * | 2019-12-23 | 2020-04-28 | 烟台信友新材料有限公司 | Low-melt-viscosity high-pressure waterproof moisture-curable hot melt adhesive and preparation method thereof |
| CN112011307A (en) * | 2020-09-08 | 2020-12-01 | 顶立新材料科技有限公司 | Reactive polyurethane hot melt adhesive for furniture coating and preparation method thereof |
| CN113388359A (en) * | 2021-06-28 | 2021-09-14 | 成都硅宝科技股份有限公司 | Edge-sealing reaction type moisture-curing polyurethane hot melt adhesive for furniture and preparation method thereof |
| CN113831886A (en) * | 2021-09-23 | 2021-12-24 | 烟台德邦科技股份有限公司 | Polyurethane hot melt adhesive for bonding low surface energy material and preparation method thereof |
| CN116410686A (en) * | 2022-12-26 | 2023-07-11 | 烟台德邦科技股份有限公司 | High-temperature-resistant polyurethane adhesive and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101410473A (en) * | 2006-12-01 | 2009-04-15 | Dic株式会社 | Moisture-curable polyurethane hot melt adhesive and multilayer sheet using the same |
| CN102336883A (en) * | 2011-07-14 | 2012-02-01 | 无锡市万力粘合材料有限公司 | Preparation method of reactive polyurethane hot melt adhesive for fabric lamination |
-
2018
- 2018-09-10 CN CN201811050406.5A patent/CN108997965B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101410473A (en) * | 2006-12-01 | 2009-04-15 | Dic株式会社 | Moisture-curable polyurethane hot melt adhesive and multilayer sheet using the same |
| CN102336883A (en) * | 2011-07-14 | 2012-02-01 | 无锡市万力粘合材料有限公司 | Preparation method of reactive polyurethane hot melt adhesive for fabric lamination |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109852319A (en) * | 2019-03-15 | 2019-06-07 | 苏州凡络新材料科技有限公司 | A kind of polyurethane hot melt and preparation method thereof |
| CN109852319B (en) * | 2019-03-15 | 2021-04-27 | 苏州凡络新材料科技有限公司 | Polyurethane hot melt adhesive and preparation method thereof |
| CN111073581A (en) * | 2019-12-23 | 2020-04-28 | 烟台信友新材料有限公司 | Low-melt-viscosity high-pressure waterproof moisture-curable hot melt adhesive and preparation method thereof |
| CN111073581B (en) * | 2019-12-23 | 2022-01-07 | 烟台信友新材料有限公司 | Low-melt-viscosity high-pressure waterproof moisture-curable hot melt adhesive and preparation method thereof |
| CN112011307A (en) * | 2020-09-08 | 2020-12-01 | 顶立新材料科技有限公司 | Reactive polyurethane hot melt adhesive for furniture coating and preparation method thereof |
| CN113388359A (en) * | 2021-06-28 | 2021-09-14 | 成都硅宝科技股份有限公司 | Edge-sealing reaction type moisture-curing polyurethane hot melt adhesive for furniture and preparation method thereof |
| CN113388359B (en) * | 2021-06-28 | 2023-02-03 | 成都硅宝科技股份有限公司 | Edge-sealing reaction type moisture-curing polyurethane hot melt adhesive for furniture and preparation method thereof |
| CN113831886A (en) * | 2021-09-23 | 2021-12-24 | 烟台德邦科技股份有限公司 | Polyurethane hot melt adhesive for bonding low surface energy material and preparation method thereof |
| CN113831886B (en) * | 2021-09-23 | 2023-09-15 | 烟台德邦科技股份有限公司 | Polyurethane hot melt adhesive for bonding low-surface-energy material and preparation method thereof |
| CN116410686A (en) * | 2022-12-26 | 2023-07-11 | 烟台德邦科技股份有限公司 | High-temperature-resistant polyurethane adhesive and preparation method thereof |
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