CN1062881C - Procoat composition for coating and protection of surfaces - Google Patents
Procoat composition for coating and protection of surfaces Download PDFInfo
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- CN1062881C CN1062881C CN94117731A CN94117731A CN1062881C CN 1062881 C CN1062881 C CN 1062881C CN 94117731 A CN94117731 A CN 94117731A CN 94117731 A CN94117731 A CN 94117731A CN 1062881 C CN1062881 C CN 1062881C
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Abstract
The present invention discloses a composition for coating, sealing and protection on surfaces to be coated, protected and/or sealed. The composition comprises a polymer, hard cyanic acid ester, aliphatic polyether glycol and rubber, wherein the polymer can be solidified by isocyanic ester; the hard cyanic acid ester can be solidified by the polymer; thereby, the composition improves non-liquidity and also comprises ring ester amine which provides activity and thixotropy at the time of composition coating.
Description
The present invention relates to a kind of composition that is used for coating, sealing and protection purpose, it comprise can by the polymkeric substance of cured with isocyanates, can be by isocyanic ester, the aliphatics polyether two pure and mild rubber of polymer cure.
The basic purpose of composition of the present invention is to obtain a kind of composition, it both can be used as a kind of topcoating of anti-corrosion and physical disturbance, can be used as the water that a kind of involution point that is used for pipe joint, roof, ceramic plate, sheet metal etc. locate and the sealing agent of other liquid again, and the very anti-mechanical wear of this composition and comprise the corrosion of the chemical of water.
The objective of the invention is to obtain the quick prepolymerization reaction of part isocyanic ester, with this composition drip of avoiding spraying or otherwise applying.
A further purpose of the present invention is to obtain the non-settling characteristic of composition, because its rubber grain that comprises is easy to precipitation when storing.
Of the present invention one further purpose be to obtain a kind of non-wet quick property composition, therefore, this composition can use under wet condition.
SE-A-7709649-3 discloses a kind of coating composition of anticorrosion usefulness, and it is antirust that it is specially adapted to the outside surface of automobile chassis, and said composition is by polyurethane polymer, waste rubber, anhydrous black coal tar and zeolite drier.This composition has reached its purpose substantially, but the shortcoming that exists the black coal tar overpowering odor to bring, this has just hindered it to use and has required harsh place, and also making simultaneously must have good ventilated environment when being coated with it.And black coal tar made on the coated tape point black, and this point can be important, but can't make us accepting.People generation need a kind of color-tinted product of selecting pigment color.Except these relevant ornamental shortcomings, people also require higher abrasion resistance, higher chemicals-resistant corrodibility (particularly under the alkali environment) and higher temperature stability.
Above problem can solve by a kind of composition, this composition comprises the rubber of the highest 50wt% of the maximum 0.4mm of material size, content, with content be 40-55wt% and can be by the poly-hydroxy base polymer base-material of cured with isocyanates, and content is the isocyanic ester of polymer cure of 18-30wt ＄ and the aliphatics polyether glycol that content is 1-5wt%.
Further characteristic is write very clearly in appended claims.
Curable prepolymer preferably can be by urethane (the DESMODUR-stiffening agent of cured with isocyanates; DESMOPHEN 1150-prepolymer), also can select for use can be by the epoxy polymer of cured with isocyanates.
Can be different polyvalent alcohol and polyester by the suitable crosslinking agent of the active stiffening agent cured polymer of isocyanates type, its molecular weight be 200 or bigger.Other polymer material is an epoxy resin, and it at first is dissolved in ketone or glycol ethers, then uses active stiffening agent (as DESMODUR) of isocyanates or amino active stiffening agent to solidify.Suitable Resins, epoxy has 1000 or bigger molecular weight.
Used aliphatics polyether glycol can be a polyester, as DESMOPHEN 1150 or the like and/or aliphatic dihydroxy alcohol) or simpler, as ethylene glycol, glycol ether, triglycol.
All types of rubber are all as the rubber material, as waste rubber, and waste rubber tire, the rubber of untreated rubber and other quality.
Like this, found that the rubber powder of 20-40wt% (is advisable with waste rubber, its particle size is less than 0.4mm, preferred 0.05-0.2mm), the polymer base material of 40-50wt%, the aliphatic polyether glycol base-material of 1-5wt% and the isocyanate hardener of 18-25wt% provide a kind of outstanding product in the scope that the present invention relates to.Therefore these compositions have very high elasticity and abrasion resistance under cure states.Under the situation that the polyester base-material makes moist, need to add zeolite drier, perhaps activated alumina, also alkaline silicate aluminium.
Purpose of the present invention can reach by the ring grease amine that interpolation accounts for total composition 0.1-1.0wt%.
Like this, when all compositions be coated onto the surface go up after in the several seconds, prepolymerization reaction has fast just taken place, therefore eliminated composition drip from the surface of processing.
In preferred embodiments, ring grease amine is by 3,3-dimethyl-4, and the 4-diamino-dicyclohexyl methane is formed, and its amount is the 0.1-1.0wt% of amount of composition, and preferred content is 0.3-0.7wt%.
Ring grease amine at first makes viscosity improve rapidly with the part isocyanate reaction, then isocyanic ester with can form final coating by the polymer reaction of cured with isocyanates.
In order to reach the non-settling characteristic of composition when storing, also can make it have thixotropism in the composition by adding soybean derivatives.Soybean derivatives content in total composition is about 0.5wt%.
Another object of the present invention is to make composition insensitive to humidity by mixing water-retaining agent (as pure aluminium silicate, zeolite), and isocyanic ester-polyurethane system is to moisture-sensitive, just composition can be coated in that both to have made be moist place thus, and does not have blistered danger.When needing, add the water absorbing material of 5-10wt%, its add-on depends on moist situation, such as when sealing such as buildingss such as road, bridge fine strains of millet, and the state in the concrete blocks.
Embodiment 1
Polyether glycol (triglycol) 40 parts heavy, particle size 0.1-0.2mm and waste rubber and 39.5 parts of heavy DESMOPHEN 1150 and 2 parts of weights, and 0.5 part heavy 3,3-dimethyl-4, the tight blending of 4-diamino-dicyclohexyl methane.The isocyanate-reactive stiffening agent (DESMODUR) that adds 18 parts of weights in this mixture again is so that total composition cure polymer when applying object (as concrete or metallic surface).
The product of the foregoing description 1 (A) and is being compared with the product (B) that SE-A-7709649-3 obtains aspect the bounding force of abrasion resistance, heat impedance and steel and the resistance to chemical corrosion after tested.Abrasion resistance:
The sheet material that scribbles above-mentioned coating is handled 5 days (120 hours) with the small stone of 200g is common in cup after, measure the coating volume that wears away with mm
3Meter.
A=19mm
3
B=105mm
3
The cylinder test body of every kind of product passes through one every square centimeter 60 particles by force, pressure 5N, and long 20 meters emery cloth, measure the volume that wears away thus:
A=145mm
3
B=470mm
3Heat impedance:
The sheet material that scribbles coating is placed under the differing temps, vertically hang 2 days after; Allow these sample/sheet materials temperature (20 ℃) that conforms again, with the naked eye detect afterwards.
A=bears 150 ℃
B=bears 80 ℃ of sticking power to steel:
The drawing force of coating is measured its adhesive ability with this on the test steel.
A=bears 4.0MPa before explosion
B=bears the 0.8MPa resistance to chemical corrosion before explosion:
The test of every kind of product is placed in several different oil with being coated with, generally can thinks thus, it is variegated that sample B has caught for all these liquid, and that sample A does not produce is any variegated.(HCl 30% at the acidic aqueous solution environment; HNO
310%; H
2SO
410%; Or CH
3-COOH 50%) test down, corrosion stability is similar basically.(NaOH or NH in alkaline aqueous solution environment
4OH), sample A is quite a lot of.
Water vapor is littler than sample B to the perviousness of sample A.Coating:
Sample A is coated in and can forms thicker coating (2.5-3mm) on the vertically suspended test panel, and sample B compares, only 1.5mm.Mobile:
Composition of the present invention is coated in (coat-thickness 1.5mm) on the vertically suspended laths of metal, and compares with the composition B that same coat-thickness (1.5mm) is arranged.The flowability of two kinds of compositions can be measured by measuring moving of coating area base simply.
A=0.5mm
B=10mm
As seen, add ring grease amine and greatly improved illiquidity.
About preparing this composition, should preferably be placed on product in the vacuum, this has just further improved abrasion resistance and resistance to chemical corrosion.And resistance to deterioration, moistureproofness and tensile strength have also improved.In the step that forms vacuum removal air, pressure should be 0.8 crust, but can further be reduced to the 0.5-0.6 crust under the situation of high viscosity composition.
Can adopt different methods during application composition, such as applying by simple hand, machinery applies and high pressure painting.When high pressure painting, suitable adopt a kind of two assembly types, through improved traditional type high pressure painting device, the composition and the stiffening agent that wherein do not contain stiffening agent mix before at ejection mixing drum (mixing tank), and take spray gun forward to by sticking (Heat taped) high pressure hose of a hot glue.The pressure that acts on the composition should be enough high to obtain the spraying substance of a kind of finely disseminated (atomizing).In the general shown viscosity of composition, described spraying substance can be at pressure 160-200kg/cm
2And temperature＞40 ℃, preferred 40-80 ℃, more preferably obtain under 45-60 ℃ the situation.
Usually, the viscosity of composition should make that high-pressure pump can't be in the composition suction device at normal temperatures.Therefore, a pressure plate successfully is installed in the high pressure painting device.The container of this pressure plate and compositions formulated assembling very tight, pressure plate or moving, pneumatic or press downward in the hydrodynamic(al) mode and to prepare in the container with power upwards is pressed onto in the sprayer with this composition like this.
In order to accelerate the curing of composition, add the curing reaction accelerator of 0.1-0.5wt%.The example of this accelerator is dibutyl tin dilaurate or corresponding lead compound.
In order to reduce fire hazard, in mixture, can add fire retardant, as phosphite compound, add-on is 5-15wt%.Nowgard V-4 is a kind of example of fire retardant.
By adding a kind of suitable gelatinoid, also can make composition have thixotropism.
Claims (1)
1. be used for coating, the composition of sealing and protection, it comprise a kind of can be by the polymkeric substance of cured with isocyanates, a kind of can be by the isocyanic ester of polymer cure, aliphatics polyether two pure and mild rubber, it is characterized in that it also comprises 3,3-dimethyl-4, the 4-diamino-dicyclohexyl methane, with by providing active thixotropism to improve illiquidity, wherein the content of the rubber of at least 0.4 millimeter of particle diameter is at most 50 weight %, the curable polymer base material content of poly-hydroxy kind isocyanate is 40-55 weight %, the isocyanate content of polymer cure is 18-30 weight %, and aliphatic diol content is 1-5 weight %.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94117731A CN1062881C (en) | 1994-10-26 | 1994-10-26 | Procoat composition for coating and protection of surfaces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94117731A CN1062881C (en) | 1994-10-26 | 1994-10-26 | Procoat composition for coating and protection of surfaces |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1121936A CN1121936A (en) | 1996-05-08 |
| CN1062881C true CN1062881C (en) | 2001-03-07 |
Family
ID=5038511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94117731A Expired - Fee Related CN1062881C (en) | 1994-10-26 | 1994-10-26 | Procoat composition for coating and protection of surfaces |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1062881C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170205649A1 (en) * | 2016-01-17 | 2017-07-20 | E Ink California, Llc | Polyhydroxy compositions for sealing electrophoretic displays |
| CN110643273A (en) * | 2019-08-14 | 2020-01-03 | 萍乡高恒材料科技有限公司 | High-performance waterborne polyurethane composition and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1986007084A1 (en) * | 1985-05-24 | 1986-12-04 | Stockholms Trade Company Aktiebolag | Composition for coating, sealing, and protecting purposes |
-
1994
- 1994-10-26 CN CN94117731A patent/CN1062881C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1986007084A1 (en) * | 1985-05-24 | 1986-12-04 | Stockholms Trade Company Aktiebolag | Composition for coating, sealing, and protecting purposes |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1121936A (en) | 1996-05-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C53 | Correction of patent for invention or patent application | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: PROCOAT INNOVATION AB TO: PUTUS STOCK CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: Weiss north, Sweden Applicant after: Procoat Innovation AB Address before: Swedish waves such as horses Applicant before: Procoat Innovation AB |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20010307 Termination date: 20121026 |