CN1222551A - Process for bonding multiple substrates and composite article prepared by process - Google Patents
Process for bonding multiple substrates and composite article prepared by process Download PDFInfo
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- CN1222551A CN1222551A CN 98108969 CN98108969A CN1222551A CN 1222551 A CN1222551 A CN 1222551A CN 98108969 CN98108969 CN 98108969 CN 98108969 A CN98108969 A CN 98108969A CN 1222551 A CN1222551 A CN 1222551A
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Abstract
A method to felt multilayer material and its produce have been disclosed in this invention, which included: (1) wipe a humidity active bond compund on the first material's surface; (2) make the surface contact to the second material's surface; (3) apply press to the interface and (4) solidify this bond compound.
Description
The present invention relates to the preparation method of humidity activated binder composition and they and with the method for the bonding multi-layer substrate of said composition.More particularly, but the present invention relates to the humidity activated binder composition of cold-curing.
Past always demand can embody a kind of tackiness agent that is applicable to woodwork than long pot life and fast solidification rate.This type of tackiness agent is very useful when making glued board, shaving board, fiberboard etc.Yet, in simple formulation, proved to be difficult to obtain these characteristics.
Plywood industry also a kind of can the bonding of demand has tackiness agent than the lignocellulosic solutions of high humidity (moisture) content, is produced laminated veneer effectively.For example, for being used for these industrial tackiness agents, hope can bond and have moisture content and be, for example, and 10～20% base material.Modal tackiness agent as the phenol aldehyde type tackiness agent, requires moisture content to be lower than 7%.
The example of this type of phenolic resin is disclosed in, for example, and Plywood and AdhesiveTechnology (glued board and adhesive techniques), Sellers, Jr., MarcelDekker, Inc. (1985).These resins can obtain excellent bond properties, but shortcoming is that they need thermal activation and a large amount of time of needs to be cured.And, as already pointed out like that, this resinoid can not be effectively uses with the base material of high humidity content.So base material must be dried to lower moisture content (generally about 5wt%), its result causes timber to set long-pending suffering a loss and cost and production time increase.
Tackiness agent based on isocyanic ester also is known, and is used for making laminated wood/paper structure spare.Making thin plate (waferboard) from Mierocrystalline cellulose and lignocellulosic material, when fiberboard and paper laminate, polyisocyanates is as tackiness agent.Example based on the tackiness agent of isocyanic ester is recorded in US4, and in 414,361, it discloses polyisocyanates-cyclic base acid carbonate adhesive composition and their purposes when making the ligno-cellulose composite molding.This patent disclosure tackiness agent is added in the lignocellulosic material and this mixture of molding under about 140～220 ℃ temperature.These polyisocyanates need the temperature more than 200 ℃ or 200 ℃ to be cured, in order that produce acceptable physical bond intensity.The use of this extreme temperature has reduced wood volume, and is normally undesirable from cost or processing.DE-A-1922626 has described a kind of humidity activated binder composition that is obtained by polyisocyanates and isocyanate reaction active ingredient, and the latter is a kind of polyether glycol with at least one tertiary N atom and preferred at least 3 hydroxyls.
So, as can be seen, needing a kind of one-package adhesive composition that wood substitutes such as laminated timber are become a useful person that be used for making, it for example under the room temperature, fully solidifies under lower temperature.Also need this type of tackiness agent, it has the working life of the length of the industrial process of being applicable to.In addition, need to use this type of tackiness agent, make the method for composite product with cellulose materials and lignocellulosic material.
These purposes can be reached by binder composition of the present invention, and these compositions reveal excellent bond properties and the working life of length and fast solidification rate, especially at room temperature.Composition of the present invention can be present in therewith humidity activated in the base material that uses, thereby they use with the base material with higher moisture content (as more than 7% or 7%) most effectively.So the present composition can use with various lignocellulosic materials effectively, especially is used for preparing wood substitutes as discussed above.Other advantage that the system of binder composition of the present invention and prior art is compared is, they can cold-curing, that is, can at room temperature solidify, or by being heating and curing.
The present invention relates to humidity activated binder composition, it comprises (a) polyisocyanates and (b) reaction product of isocyanate reaction active ingredient, component (b) comprise at least a contain the aliphatic tertiary amine base and have ethylene oxide content be at least 1% polyvalent alcohol.The invention further relates to the method for bonding multiple substrates, comprise: (1) is coated on the surface of at least a base material and is comprised (a) polyisocyanates and (b) a kind of humidity activated binder composition of the reaction product of isocyanate reaction active ingredient, component (b) comprise at least a contain the aliphatic tertiary amine base and have ethylene oxide content be at least 1% polyvalent alcohol; (2) allow this surface of this base material contact with the surface of second base material; (3) contact surface is exerted pressure: and (4) curable adhesive composition.
Binder composition of the present invention comprises 99～70%, preferred 93～80% and the polyisocyanate component of most preferably 90～80% (by weight).
Can be used for polyisocyanates of the present invention is that the number averaged isocyanate functionality is 2.0 or bigger, is preferably greater than 2.1, more preferably greater than 2.3 and most preferably greater than 2.5 those.Useful polyisocyanates should have number-average molecular weight 100～5000 and preferred 120～1800.Preferably, the isocyanate group with preferred at least 90 moles of % of at least 50 moles of % directly is bonded in aryl.
Suitable aromatic polyisocyanate comprises, for example PPDI; M-benzene diisocyanate; 2,4 toluene diisocyanate; 2, the 6-tolylene diisocyanate; Naphthalene diisocyanate; Connection fennel vulcabond; Poly methylene poly phenyl poly isocyanate; 2,4 ＇-diphenylmethanediisocyanate (2,4 ＇-MDI); 4,4 ＇-diphenylmethanediisocyanate (4,4 ＇-MDI); 3,3 ＇-dimethyl-4,4 ＇-biphenyl diisocyanate; Functionality is higher than 2 poly-(ditan polyisocyanates); And their mixture.2,4 ＇ of polyisocyanates-MDI content should be lower than 18.0%, preferably is lower than 10% and most preferably be lower than 5%.The MDI isomer, the mixture of these isomer and poly-(ditan polyisocyanates), poly-(ditan polyisocyanates) itself and derivative thereof is preferred.
Polyisocyanates can comprise a small amount of aliphatic polyisocyanate.Suitable aliphatic polyisocyanate comprises isophorone diisocyanate; 1, the 6-hexamethylene diisocyanate; 1,4-cyclohexyl diisocyanate, saturated analogues of above-mentioned aromatic polyisocyanate and composition thereof.
Polyisocyanate component of the present invention is polymeric multi isocyanate and more preferably polymerization diphenylmethanediisocyanate preferably.The obtainable polymeric multi isocyanate of commercial sources comprises the Inc. from ICIAmericas, the Rubiflex that Wilmington, Delaware buy
26A.
The prepolymer of isocyanic ester terminal also can be used for the present invention.Term used herein " isocyanate-terminated prepolymer " comprises prepolymer and false prepolymer, that is, and and the mixture of prepolymer and polyisocyanates (making prepolymer) from it.It is 10～26% that the isocyanate-terminated prepolymer that is used for the present composition should have free isocyanate (NCO) content, preferred 16～26%.In general, polymeric multi isocyanate can prepare by the reaction of excessive polyisocyanates and polyvalent alcohol, and polyvalent alcohol comprises amination polyvalent alcohol or its imido grpupization or enamine product.
The suitable polyvalent alcohol that is used for preparing the prepolymer of isocyanic ester terminal comprises:
(a) molecular weight be 1000～3000 and the average hydroxy functionality be 1.9～4 polyether glycol, thioether polyvalent alcohol and/or based on the polyvalent alcohol of hydrocarbon;
(b) molecular weight is more than 1000 or 1000 and the average hydroxy functionality is 1.9～4 polyester polyol.
The prepolymer that is used for particularly preferred isocyanic ester terminal of the present invention is the MDI prepolymer, and it is the reaction product of excess polymeric MDI and polyether glycol.Polyether glycol preferably hydroxyl value is 25～120 glycol or triol.It is 1000～3000 that polyvalent alcohol should have number-average molecular weight.The free NCO content that this type of prepolymer generally should have is higher than 10%, preferably is higher than 16% and most preferably 16～26%.Suitable polymers is that wherein isocyanic ester (NCO) surpasses those of 1: 1 to the stoichiometric ratio of hydroxyl (OH), the Rubinate that buys from ICI Americas
M is used for suitable polymeric MDI composition of the present invention.
More preferably, polyisocyanate component is a polymeric MDI, as described above Rubinate
The blend of M and pure MDI.Found that this type of blend has improved perviousness to the ligno-cellulose base material, had higher timber structure and destroy (wood failure), destroyed opposite with glue-line.Be applicable to that the pure NDI product that obtains with commercial sources of the present invention is the Rubinate available from ICI AmericasInc
The polymeric MDI of these blends/pure MDI ratio is 95: 5～50: 50 and be preferably 60: 40～80: 20.
Second component of the present composition is the active component of isocyanate reaction, comprise at least a contain the aliphatic tertiary amine base and have ethylene oxide content be at least 1% polyvalent alcohol.Preferably, ethylene oxide content is 1～90%, is preferably 5～60% and most preferably 10～40%.The ethylene oxide content that containing the aliphatic tertiary amine polylol provides in prepolymer is 0.01～27%, preferred 0.35～12% and most preferably 1～8%.This amount of ethylene oxide is the total amount in the prepolymer.Have been found that now this polyvalent alcohol can contain the propylene oxide of any amount.
The suitable polyvalent alcohol that contains the aliphatic tertiary amine base is known the have amine of at least two active hydrogen atoms or the alkoxylated polymerization product of alkamine and oxyethane and preferred propylene oxide.Suitable initiator molecule comprises: ammonia, quadrol, hexamethylene-diamine, methylamine, diaminodiphenyl-methane, aniline, thanomin, diethanolamine, N methyldiethanol amine, tetrahydroxyethy-lethylenediamine, etc.
The suitable polyvalent alcohol that contains the aliphatic tertiary amine base is that wherein initiator comprises those of 1～18 and preferred 1～6 carbon atom.The molecular-weight average of the suitable polyvalent alcohol that contains the aliphatic tertiary amine base is 1500～10,000 and preferred 1500～6000, and average OH functionality is 1.8-6.0.
The inventor finds that the concentration relationship of nitrogen is fast solidification rate to the efficient of composition in the polyvalent alcohol of amino-contained.In general, nitrogen concentration should be 0.002～0.02eqN/100g, preferred 0.004～0.008eqN/100g and 0.006eqN/100g most preferably.
The polyvalent alcohol that is used for preferred amino-contained of the present invention comprises from those of quadrol, Triethylenetetramine (TETA) and trolamine preparation.
Component in the present composition (b) contains the polyol component of aliphatic tertiary amine base, content be 1～30%, preferred 7～20% and most preferably 10～20% (by weight) is based on the total amount of isocyanic ester in the composition and polyvalent alcohol.
In its most preferred form, the polyvalent alcohol of amino-contained is based on polyvalent alcohol quadrol and that contain oxyethane.The suitable polyvalent alcohol based on quadrol is that ethylene oxide content is 1～90%, those of preferred 5～60% and most preferably 10～40%.Ethylene oxide content refers to be used for prepare the amount of the oxyethane of polyvalent alcohol as discussed above.In preparation process, oxyethane and initiator for reaction.The molecular weight of polyvalent alcohol is in 1500～5000 scopes.
Be used for suitable polyvalent alcohol of the present invention and comprise those with following structural formula based on quadrol:
Wherein x is between 1.0～29.0, preferably at the integer between 4.0～14 between 4.0～20 and most preferably; And y is between 0.1～10.0 and preferred integer between 2.0～4.0.Suitable polyvalent alcohol based on quadrol can obtain by commercial sources, " Synperonic T " series that if can buy from ICI Americas Inc.
Although do not want to be subjected to single one theory, it is believed that the polyvalent alcohol of the amino-contained in the binder composition of the present invention keeps nonactive, until with till moisture in the timber contacts.In case the polyvalent alcohol of amino-contained contacts with moisture, it is believed that to have promoted the reaction between the polyisocyanates and water in the system, thereby quickened adhesive effect.The result is that this tackiness agent solidifies quickly.And tackiness agent is retained on the wood surface (this moment is the most effective) and can produces processes required cold bonding.
The present composition further comprises all cpds with katalysis solidification rate with improved system.The example of suitable catalyst has, for example, and tertiary amine catalyst.Suitable tertiary amine catalyst can obtain with Niax A-4 from Union Carbide by commercial sources, reaches Thancat DMDEE and obtains from Texaco, and most preferably, Niax A-4 catalyzer is used for slower curing system.
When being used for binder composition of the present invention, the content of catalyzer is 0.1～2.0% (weight) and preferred 0.25～1.0% (weight), based on the gross weight of urethane in the composition.
Binder composition of the present invention can be by mixing under conditions suitable or blend polyisocyanate component and polyol component make simply.If especially two components all are liquid.Do not allow moisture to enter this system.If a component is a solid.This component should be dissolved in another liquid ingredient fully.Under any circumstance, any way that can be realized from disclosure thing by in the art skilled person mixes or these components of blend.
Conventional filler joins in the composition as lime carbonate and clay.Found that filler can be used to that tackiness agent is remained on desire and handles on the surface of base material.Simultaneously, have and to use thinner and/or wetting agent to improve the viscosity of composition.These raw materials use with the amount that is fit to application-specific, and this is fairly obvious for skilled person in the art from disclosure thing.
Found binder composition of the present invention, when before being applied to base material, mixing, under no moisture condition, had about one month or longer working life.
Composition of the present invention also is " cold-curing ", promptly can solidify to the temperature between the room temperature at 10 ℃, although also can thermofixation.So the present composition can solidify under the temperature between 10 ℃～250 ℃.Preferably, the present composition solidifies under the temperature between 23 ℃～125 ℃.In general, most systems were at room temperature solidified in 10～60 minutes.
Binder composition of the present invention many dissimilar moisture base materials that contain that can be used to bond.Preferably, the present composition is used for the delta wood base material is bonded together, with the preparation engineering woodwork.Preferably, at least a base material is selected from wood, paper, rice husk, cement, stone, cloth, grass, hoja, bagasse, nutshell, foam of polymers film and sheet, foam of polymers and filamentary material.Preferably, this composition is used for making multi-layer substrate matrix material or laminated product, especially comprise those of ligno-cellulose or cellulose materials such as timber or paper, be used for manufacturing a product as the woodwork of glued board, laminated wood, thin plate (warferboard), particle board, fiberboard, shaving board and orientation, as " Parallam " that can obtain from McMillan Bloedell.
Because binder composition of the present invention is humidity activated, importantly base material has higher moisture content.Specifically, base material should have at least 7% moisture content.Preferably, the moisture content of base material is 10～20% (weight) and more preferably 12～15% (weight).
When being used for multi-layer substrate bonded together, this composition is painted on the surface of first base material.Then, the surface of second base material contacts with the surface of containing this composition of first base material.Surface in contact is exerted pressure, allow binder composition solidify.The surface of second base material that contacts with first base material generally is not coated with binder composition of the present invention.Yet, this surface also can with coated composition before base material contacts.
This binder composition also can provide cold bonding immediately after being applied to base material after the formulating of recipe.This is particularly useful for pre-press operation (wherein mechanical treatment normally necessary).Cold bonding can be realized by the quadrol polylol than fastoperation that comprises 10～20% in the preparaton.In general, those polyvalent alcohols with higher ethylene oxide content (promptly being higher than 25%) are considered to than fastoperation.
Binder composition of the present invention can any routine mode be coated on the substrate surface.For example, the surface can be applied with composition by modes such as spraying, brushings.The lip-deep suitable method that binder composition is coated in the base material that supplies special applications is fully aware of for those skilled persons in this skill wood field from disclosure thing.
After the base material that applied is in contact with one another, it is exerted pressure.Pressure should be enough to cause that the surface adheres to mutually.Generally, the size of pressure and time of exerting pressure are unqualified, and specific pressure and time are fully aware of for skilled person in the art from disclosure thing.Yet, find advantageously, applied roughly 10～200 pounds/inch through 10～20 minutes
2Pressure (be equivalent to 69-1380KPa and can cause that most of base material is suitably bonding.Generally in 1 hour, treated base material is done further processing.
Now by the following examples explanation the present invention, they are not in order to limit scope of the present invention.
Binder composition below produced according to the present invention.
Embodiment 1
The formulation H parts by weight
MDI prepolymer 25.0
Polyvalent alcohol 1 10.0
Thancat?DMDEE????0.1
Lime carbonate No.7 10.0
Phenyl aldehyde 0.5
The MDI prepolymer has 24.5% NCO content and is that 80/20 blend by Rubinol-456 (polyether Glycols that can obtain from ICI Americas Inc.) and polymeric MDI/pure MDI reacts and makes.Used standard polymerization MDI is RubinateM
TMWith used pure MDI be Rubinate44
TM, both can both buy from ICI Americas Inc.Polyvalent alcohol 1 is " Synperonic T 701 ", and it is a kind of polyvalent alcohol based on quadrol of buying from ICI AmericasInc..
Prepare formulation H by each component of blending at room temperature in standard mixing cup and by manual the stirring.
The southern pine laminate is adjusted to moisture content 14.0% under 95% relative humidity and 95 in the moisture ageing oven.With brush formulation H is equivalent to 12.9mg/cm with application weight 12.0 gram/feet 2 then
2) be coated in a side of two independent laminates.The laminate that applied contacts then, and at room temperature with 150 pounds/inch
2Pressure (being equivalent to 1035KPa) was exerted pressure 20 minutes.
According to APA (U.S. glued board association) guide, test the glue-line prescription of prepared laminate about the external type test.Specifically, the tested aging shearing of testing acceleration of each sample laminate.Each sample was boiled 4 hours, descended dry 20 hours at 145 °F (± 5 °F) then.After the drying, sample boiled once more 4 hours and cooled off in water.
Allow each sample carry out shearing test then, mode is that each sample is put into autoclave pressure and whole still is immersed cold running water.Take out the vacuum of 25 inches of mercury (being equivalent to 3.4KPa) then and kept 30 minutes, then apply 65-70 pound/inch immediately
2The pressure of (being equivalent to 449-483KPa) reaches 30 minutes.From still, take out sample then, in shear testing maschine, negative taking advantage of wet the test by destroying by stretching.The timber structure destructive percentage ratio that on shear surface, takes place for each sample evaluation then.
With the sample of formulation H preparation at 99.0 pounds/inch
2Demonstrate under the shear loading of (being equivalent to 683KPa) and be higher than 85% timber structure destructive rate.
The formulation A parts by weight
MDI prepolymer 25.0
Polyvalent alcohol 1 10.0
Thancat?DMDEE?????0.1
Lime carbonate No.7 10.0
The MDI prepolymer that is used for formulation A has 24% NCO content and is by RubinolF-456 and Rubinate M
TM/ Rubinate 44
TM60/40 blend reaction make.
Handle the southern pine laminate by above about the description of using formulation H, just regulate the humidity to 10% of laminate.Formulation A is with 14 gram/feet
2(be equivalent to 15mg/cm
2) amount be coated in a side of two independent laminates.Sample at room temperature with 200 pounds/inch
2(being equivalent to 1380KPa) be pressurization down.
Come the accelerated deterioration of test sample to shear 177 pounds/inch of concurrent present shear loadings by the above
2Have under (being equivalent to 1221KPa) and be higher than 85% timber structure destructive rate.
Preparaton C parts by weight
NDI prepolymer 25.0
Polyvalent alcohol 1 3.25
Polyvalent alcohol 2 0.75
Niax?A-4?????????0.25
Lime carbonate No.7 10.0
SAG?47???????????0.07
The MDI prepolymer that is used for preparaton C has 26% NCO content and is by RubinolF-456
TMWith Rubinate M
TMReaction makes.Polyvalent alcohol 2 is can be from " the Synperonic T304 " of ICIAmericas Inc. purchase, and it also is based on the polyvalent alcohol of quadrol.SAG 47 is can be from the defoamer of Union Carbide purchase.
The southern pine laminate is conditioned moisture content to 10%.Preparaton C is with 12 gram/feet
2(be equivalent to 13mg/cm
2) amount be coated in a side of two independent laminates.System produces cold bonding in 10 minutes.
Sample is at 150 pounds/inch
2Cold prepressing is 4 minutes under (being equivalent to 1035KPa).Sample then under 300 temperature at 200 pounds/inch
2Hot pressing is 3 minutes under (being equivalent to 1380KPa).
Each sample is tested the accelerated deterioration shearing by above about the description of using formulation H then.Sample is 92 pounds/inch of shear loadings
2Demonstrate under (being equivalent to 635KPa) and be higher than 85% timber structure destruction.
So, can find out that binder composition of the present invention provides excellent binding property, this can be illustrated by higher timber structure destructiveness in cold-curing and thermofixation (preparaton C) two systems.
Embodiment 2
By allowing Rubinate
1840 polymeric MDIs (PMDI) at room temperature mix with polyol component and prepare 11 resin sample, and all samples are prepared by simple manual mixing, although sample 8-12 needs vigorous stirring.The composition of each sample is listed in the table below 1.
Table 1
| ????1 | 100%PMDI (contrast) |
| ????2 | ?95％PMDI/5％Synperonic?T?304 |
| ????3 | ?97.7％PMDI/2.26％Daltolac?R-140 |
| ????4 | ?95.7％PMDI/2.26％Daltolac?R-140/2.0％ ?Carbowax?MOPEGS |
| ????5 | ?99.15％PMDI/0.85％Vornol?R800 |
| ????6 | ?97.15％PMDI/0.85％Vornol?R800/2.0％ ?Carbowax?MOPEGS |
| ????7 | ?93％PMDI/7％Synperonic?T304 |
| ????8 | ?95％PMDI/5％Petrolite?X8117 |
| ????9 | ?95％PMDI/5％Petrolite?X8118 |
| ????10 | ?95％PMDI/5％Petrolite?X8119 |
| ????11 | ?95％PMDI/5％Petrolite?X8120 |
| ????12 | ?95％PMDI/5％Petrolite?X8121 |
Synperonic T304 is a kind of polyvalent alcohol based on quadrol from ICI Americas Inc., wherein contains 40%EO.
Dal+olac R-140 is a kind of polyvalent alcohol based on trolamine from ICI Americas Inc..
Carbowax MOPEGS is the methoxy poly (ethylene glycol) available from Union Carbide.
Vornol R800 is the propylene oxide adduct available from a kind of EDA of Dow..
Petrolite X-8117 is the-oxyl amine that has 80/10 PO/EO ratio available from Petrolite Corp. a kind of.
Petrolite X-8118 is the-oxyl amine that has 80/30 PO/EO ratio available from Petrolite Corp. a kind of.
Petrolite X-8119 is the-oxyl amine that has 105/50 PO/EO ratio available from Petrolite Corp. a kind of.
Petrolite X-8120 is the-oxyl amine that has 105/30 PO/EO ratio available from Petrolite Corp. a kind of.
PeLrolite X-8121 is the-oxyl amine that has 105/90 PO/EO ratio available from Petrolite Corp. a kind of.
Levigated aspen thin slice from Louisiana Paeific mixes by wood/resin ratio with each resin sample at 2: 1.On Texas Instruments differential scanning calorimeter (DSC) 2910, obtain the calorimetric measurement value then.Be placed in the DSC planchet 30mg sample of resin/wooden mixture and sealing.Sample is at 500 pounds/inch
2Speed with 10 ℃ of per minutes under (being equivalent to 3450KPa) heats up.Measure the peak temperature of each sample.The nitrogen equivalent of result in the every 100g of each sample listed in table 2.
Table 2
| Sample | Nitrogen equivalent/100g | The peak temperature (℃) |
| ????1 | ????0 | ????134 |
| ????2 | ????0.0061 | ????90 |
| ????3 | ????0.0061 | ????131 |
| ????4 | ????0.0061 | ????126 |
| ????5 | ????0.0061 | ????123 |
| ????6 | ????0.0061 | ????122 |
| ????7 | ????0.0084 | ????88 |
| ????8 | ????0.0001 | ????118 |
| ????9 | ????0.0008 | ????123 |
| ????10 | ????0.0006 | ????124 |
| ????11 | ????0.0005 | ????119 |
| ????12 | ????0.0005 | ????123 |
The peak temperature refers to the point that reacts between resin and wood, so the ebb temperature has been represented high reaction activity, and promptly fast solidification rate.
Can find out that from table 2 sample 2 and 7 has the fastest solidification rate.The sample 3 and 5 that does not contain oxyethane in polyvalent alcohol has higher solidification rate.Sample 4 and 6, wherein oxyethane add separately (by add MOPEGS to system) and thereby when on polyvalent alcohol, not containing oxyethane yet, also have higher solidification rate.In polyvalent alcohol, there is sample 8-12 (providing) to compare, has slower solidification rate with those samples that higher amine concentration is arranged with the comparative example than low amine content.
So embodiment 2 clearlys show, improves amine concentration and have at least some oxyethane all can improve solidification rate on polyvalent alcohol in polyvalent alcohol.
The present invention can be embodied by other specific forms under the prerequisite that does not break away from its spirit or base attribute, so, should be with reference to appended claim, rather than the explanation of front, specify scope of the present invention.
Claims (13)
1. the method for a bonding multiple substrates comprises:
(1) on the surface of first base material, coats a kind of humidity activated binder composition, said composition comprises by (a) polyisocyanates and (b) comprises at least a reaction product that contains the isocyanate reaction active ingredient of aliphatic tertiary amine polylol that this polyvalent alcohol has at least 1% ethylene oxide content;
(2) allow this surface contact with the surface of second base material;
(3) contact surface is exerted pressure; With
(4) solidify this binder composition.
2. according to the process of claim 1 wherein that described composition further comprises catalyzer.
3. according to the process of claim 1 wherein that described polyisocyanates is a polymeric multi isocyanate.
4. the method for claim 3, wherein said polymeric multi isocyanate is the polymerization diphenylmethanediisocyanate.
5. the process of claim 1 wherein that described polyisocyanates is that NCO content is 10～26% isocyanate-terminated prepolymer.
6. the method for claim 5, wherein said polyisocyanates are that polymerization diphenylmethanediisocyanate and molecular weight are the reaction product of 1000～3000 polyether glycol.
7. the process of claim 1 wherein that described aliphatic tertiary amine polylol has 1～90% ethylene oxide content.
8. the method for claim 8, wherein said aliphatic tertiary amine polylol has 5～60% ethylene oxide content.
9. the process of claim 1 wherein that described aliphatic tertiary amine polylol is by the compound that is selected from quadrol, Triethylenetetramine (TETA) and trolamine.
10. the method for claim 9, wherein said aliphatic tertiary amine polylol is the quadrol polylol with following structural formula:
Wherein x be 1～29 and y be 1～10.
11. the method for claim 2, wherein said catalyzer is a tertiary amine catalyst.
12. the process of claim 1 wherein that described base material has the moisture content of 7wt% at least.
13. composite product by the preparation of the method for the arbitrary claim of claim 1-12.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98108969 CN1222551A (en) | 1993-10-14 | 1998-05-09 | Process for bonding multiple substrates and composite article prepared by process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US136,359 | 1980-04-01 | ||
| CN 98108969 CN1222551A (en) | 1993-10-14 | 1998-05-09 | Process for bonding multiple substrates and composite article prepared by process |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94193760.7A Division CN1041733C (en) | 1993-10-14 | 1994-10-13 | Moisture-activated adhesive compositions |
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| CN1222551A true CN1222551A (en) | 1999-07-14 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100349945C (en) * | 2003-07-25 | 2007-11-21 | 亨茨曼国际有限公司 | Non-traditional moisture cured catalysts and cold curing polyisocyanate adhesives prepared therefrom |
| WO2018058479A1 (en) * | 2016-09-29 | 2018-04-05 | Dic Corporation | Adhesive, laminated film using the same and polyol composition for adhesive |
| CN111448236A (en) * | 2017-12-27 | 2020-07-24 | 陶氏环球技术有限责任公司 | Two-component solvent-free adhesive composition for adhering to metal and/or metallized substrates |
-
1998
- 1998-05-09 CN CN 98108969 patent/CN1222551A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100349945C (en) * | 2003-07-25 | 2007-11-21 | 亨茨曼国际有限公司 | Non-traditional moisture cured catalysts and cold curing polyisocyanate adhesives prepared therefrom |
| WO2018058479A1 (en) * | 2016-09-29 | 2018-04-05 | Dic Corporation | Adhesive, laminated film using the same and polyol composition for adhesive |
| US11180685B2 (en) | 2016-09-29 | 2021-11-23 | Dic Corporation | Adhesive, laminated film using thereof and polyol composition for adhesive |
| US11739242B2 (en) | 2016-09-29 | 2023-08-29 | Dic Corporation | Adhesive, laminated film using thereof and polyol composition for adhesive |
| CN111448236A (en) * | 2017-12-27 | 2020-07-24 | 陶氏环球技术有限责任公司 | Two-component solvent-free adhesive composition for adhering to metal and/or metallized substrates |
| CN111448236B (en) * | 2017-12-27 | 2022-10-11 | 陶氏环球技术有限责任公司 | Two-component solvent-free adhesive composition for adhering to metal and/or metallized substrates |
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