CN1162001A - Adhesive composition of (methyl) acrylic (co) polymer - Google Patents
Adhesive composition of (methyl) acrylic (co) polymer Download PDFInfo
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- CN1162001A CN1162001A CN 97101235 CN97101235A CN1162001A CN 1162001 A CN1162001 A CN 1162001A CN 97101235 CN97101235 CN 97101235 CN 97101235 A CN97101235 A CN 97101235A CN 1162001 A CN1162001 A CN 1162001A
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- methyl
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- polymkeric substance
- vinylformic acid
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Abstract
The present invention relates to an adhesive compositions of a (methyl ) acrylic (co) polymer which is prepared based on the 80-100wt% of methylmethacrylate and 0-20wt% of at least one monomer containing alkylene unsaturated bonds and being capable of co-polymerizing together with methylmethacrylate. The composition comprises 1,3-dioxolane and aminic acid or mono-, di- or tetraetylene glycol dimethyl ether, dissolved (methyl ) acrylic (co) polymer and arbitrary diluting additive agent. The present invention relates also to produces obtained by casting-moulding, extrusion or injection moulding of the (methyl ) acrylic (co) polymer, wherein the joint formed by the composition mentioned above is also included.
Description
The present invention relates to based on binder composition with 80-100wt% (weight percent) methyl methacrylate (MAM) and at least a (methyl) vinylformic acid (being total to) polymkeric substance synthetic materials that contains the alkene unsaturated link(age) and can obtain of 0-20wt% with the monomer of methyl methacrylate copolymer.
(methyl) acrylate copolymer, especially polymethylmethacrylate and methyl methacrylate and at least a performance that contains the monomeric multipolymer of alkene unsaturated link(age) that generally is less than 20wt% are particularly suitable in industrial application it.Therefore, except its thermoplasticity, high mechanical strength, the excellent anti aging, erosion resistance and Chinese People's Anti-Japanese Military and Political College's gas aggressiveness are and outer, and these polymkeric substance also have outstanding optical property (light transmission, transparency, gloss).
These polymer materialss can be used to make various goods.Employing casting or extrusion method make plate or band shape or employing is extruded or these goods of injection moulding process moulding can be sheared, and polishing is bonding, welds or folds.
In order to make goods, need be suitable for the tackiness agent of these products with (methyl) acrylate copolymer.
As tackiness agent, the organic solvent of known available this polymkeric substance such as chloride solvent, these solvents have makes pending bonding polymer surfaces swelling or dissolved characteristic; After the solvent evaporation by have pending this bonding material itself guarantee the gummed or bonding.
Also use the solvent cement of form of mixtures, wherein the solvent with this polymkeric substance mixes with (methyl) acrylate copolymer of a large amount of or minimal amounts of dissolved.Exist dissolved polymers can make the evaporation of solvent postpone and thereby can adjust better and remain bonding parts.After solvent evaporation, exactly by the polymkeric substance that can guarantee that bonding tackiness agent obtains.
But the evaporation of solvent causes the material deficiency, wherein has stress thereby form the disadvantageous abscess of good appearance that obtains high mechanical strength or the finished product or goods or make.
Gummed or bonding must be high-quality and remain in fact invisible, thereby guarantee that the good appearance of the finished product and gummed or adhesive effect also must make its acquisition be enough to stand the tensile strength of mechanical strain or stress.
Under the polymethylmethacrylate situation, tensile strength is about 75MPa.In order to reach gratifying result, carry out bonding joint or contact or be called seam to have tensile strength at least about 30Mpa.
In order to obtain gratifying adhesive effect, the solvent in the binder composition must be able to immerse surface of polymer material and make it enough dissolve (or swelling or expansion) and and then make contact have good rupture strength characteristic.But the dissolved effect should not bring defective such as crackle to bond.In addition, solvent should evaporate enough soon, thereby makes gummed or bond be gone to handle by the user as much as possible, but as mentioned above, in order correctly to adjust pending bonding parts is arranged, and solvent evaporation is too not fast again.Joint itself is transparent and does not have visible defects to remove the abscess that stays behind the tackiness agent as drying.
General used solvent is chloride solvent such as ethylene dichloride and methylene dichloride.These solvents can obtain excellent result, but have deleterious shortcoming.
Therefore, the present invention seeks to propose binder composition with at least a (methyl) vinylformic acid (being total to) polymkeric substance (A) that contains the alkene unsaturated link(age) and can obtain of 80-100wt% methyl methacrylate and 0-20wt% with the monomer of methyl methacrylate copolymer, wherein said composition does not contain deleterious solvent and can satisfy above-mentioned requirements, thereby has obtained satisfactory contact or joint.
Comprise 45-90%1 according to the weight meter in the binder composition of the present invention, the 3-dioxolane, 2-25% formic acid or one, two or tetraethylene glycol dimethyl ether, 2-30% dissolved (methyl) vinylformic acid (being total to) polymkeric substance (B) and 0-40% yes or no remain to be glued together or the organic thinner additive of the solvent of bonding polymer materials.
Preferably include 60-85%1 in this binder composition by weight, 3-dioxolane, 3-20% formic acid or one, two or tetraethylene glycol dimethyl ether, 10-16% dissolved (methyl) vinylformic acid (being total to) polymkeric substance (B) and 10-40% thinner additive.
1, the effect of 3-dioxolane compound be immerse remain to be glued together or the surface of bonding (methyl) vinylformic acid (being total to) polymer product so that joint or contact in other words seam have good adhesive effect.This compound also makes (methyl) vinylformic acid (being total to) polymkeric substance (B) dissolving of adding in the tackiness agent preparation process.
Formic acid or one, two or tetraethylene glycol dimethyl ether as making 1, the preparation that the 3-dioxolane postpones evaporation also improves contact or the adhesive effect of joint.
As mentioned above; add weight-average molecular weight and be generally less than 1; 000,000, preferred 50; 000-1; 000,000, especially 500; 000-700,000 bead or particulate state (methyl) vinylformic acid (being total to) polymkeric substance (B) can make solvent delay or postpone evaporation and thereby control the assembling effect of component and the effect of tackiness agent better.As polymkeric substance, this material also be used for remedying the deficiency of material in the bonding goods.These (methyl) vinylformic acid (being total to) polymkeric substance generally are with imperplex or contain the multipolymer formation of the alkyl acrylate of 1-10 carbon atom with methyl methacrylate and alkyl wherein.These multipolymers generally contain the alkyl acrylate that is less than 20wt%.
The additive that can enumerate comprises that yes or no remains to be glued together or the thinner additive such as the ketone of the solvent of bonding polymkeric substance, ether, alcohol or ester such as methylethylketone, methyl iso-butyl ketone (MIBK), acetone, Pyranton, Methylal(dimethoxymethane), methyl acetate, ethyl acetate, butylacetate or isobutyl acetate, phthalic acid methyl esters, ethyl formate and butanols.
The effect of these additives is to promote dissolving, postpones evaporation to obtain smooth and joint or seam uniformity.These additives also can prevent the formation of the surface film of interference with solvent evaporation.
The amount that is dissolved in (methyl) vinylformic acid (being total to) polymkeric substance (B) in the binder composition depends on the end-use of said composition.For some purposes, this binder composition must be introduced the space that forms joint or contact by capillary action.The fluid property of said composition or flowability will be enough to will treat bonding moistened surface rightly, but must have enough viscosity, thereby guarantee the adhesive effect that reaches suitable and thereby make FS final spice or seam reach good tensile strength so that must immerse and remain bonding material and make its dissolving or the swollen solvent evaporation process is postponed or postpone to carry out.The viscosity of this binder composition is generally 0.1-5Pa.s.
Available present composition gummed or bonding (methyl) acrylate copolymer (A) especially comprise imperplex and methyl methacrylate be less than 20wt% at least a contain the alkene unsaturated link(age) also can with the monomeric multipolymer of methyl methacrylate copolymer.The above-mentioned monomer that contains the alkene unsaturated link(age) is that wherein alkyl contains the alkyl acrylate such as the methyl acrylate of 1-10 carbon atom, ethyl propenoate, n-butyl acrylate, 2-ethylhexyl acrylate, isobutyl acrylate, vinylbenzene, substituted vinylbenzene such as alpha-methyl styrene, vinyl cyanide, methacrylonitrile, methacrylic acid C
2-C
8Alkyl ester, vinylformic acid (C
1-C
5) rudimentary hydroxy alkyl ester and methacrylic acid (C
1-C
5) rudimentary hydroxy alkyl ester, vinylformic acid lower alkoxy ester, acrylamide, acrylic or methacrylic acid and maleimide.
Remaining bonding (methyl) vinylformic acid (being total to) polymer materials can be according to known mode itself by casting, extrudes or injection moulding and obtaining.
Following examples describe the present invention in detail, but do not limit the present invention.
Gummed or connect effect and adopt by two and stretch with the test specimen that (methyl) acrylate copolymer is made and end-to-end bonding component are formed and assess.The tensile strength of joint or gummed is measured according to iso standard 527.
Embodiment 1
For the casting polymethylmethacrylate plate that is of a size of 100 * 300 * 5mm with two combines along its long limit, remaining to coat the joint of thickness between the bonding two sides for about 5/10mm.Comprise 80%1 by weight in this tackiness agent, 3-dioxolane, 9% formic acid and 11% dissolved polymethylmethacrylate (Mw=500,000).This assembly was handled after 10 minutes.Place the sample that according to iso standard 527 this assembly is cut into 8 * 15 * 5mm after 10 days.Tensile strength is 34MPa.
Embodiment 2
With containing 63.5%1 by weight, 3-dioxolane, 4.5% formic acid, the binder composition of 20% methyl acetate and 12% dissolved polymethylmethacrylate (Mw=500,000) carry out the test identical with embodiment 1.Tensile strength is 38MPa.
Embodiment 3
With containing 69%1 by weight, 3-dioxolane, the binder solution of 20% diglyme and 11% dissolved polymethylmethacrylate (Mw=500,000) carry out the test identical with embodiment 1.Tensile strength is 35MPa.
Under these three kinds of situations, joint or seam are transparent, pore-free or abscess and very smooth.
Embodiment 4 (comparison)
As a comparison case, be same as embodiment 1 and the polymethylmethacrylate plate is moulded in two block castings bonded together, but used bonding composition comprises 89%1 by weight, 3-dioxolane and 11% dissolved polymethylmethacrylate (Mw=500,000).Tensile strength is 22MPa.Form polymeric film on joint or joint surface, this makes drying operation carry out very slowly.Near joint, can be observed the edge shrinkage phenomenon.
Embodiment 5 (comparison)
Be same as embodiment 1 and operate, but used bonding composition comprises 91%1 by weight, 3-dioxolane and 9% formic acid.Tensile strength is 20MPa.Shrinkage phenomenon is all observed in each position in adhesive spots.
Embodiment 6 (comparison)
Be same as embodiment 1 and operate, but include only 1 in the used bonding composition, the 3-dioxolane.Tensile strength 15MPa.Abutting edge outward appearance bad (shrinkage phenomenon appears in each position).
Claims (8)
1. the binder composition of (methyl) vinylformic acid (being total to) polymkeric substance (A) that contains the alkene unsaturated link(age) with 80-100wt% methyl methacrylate and 0-20wt% at least a and can obtain with the monomer of methyl methacrylate copolymer, it is characterized in that comprising by weight in the said composition 45-90%1, the 3-dioxolane, 2-25% formic acid or one, two or tetraethylene glycol dimethyl ether, 2-30% dissolved (methyl) vinylformic acid (being total to) polymkeric substance (B) and 0-40% organic thinner additive.
2. the composition of claim 1, it is characterized in that wherein comprising by weight 60-85%1, the 3-dioxolane, 3-20% formic acid or one, two or tetraethylene glycol dimethyl ether, 10-16% dissolved (methyl) vinylformic acid (being total to) polymkeric substance (B) and 10-40% thinner additive.
3. the composition of any one in the claim 1 and 2 is characterized in that the thinner additive is selected from that yes or no remains to be glued together or ketone, ether, alcohol or the ester of the solvent of bonding (being total to) polymkeric substance (A).
4. the composition of claim 3 is characterized in that the thinner additive is selected from methylethylketone, methyl iso-butyl ketone (MIBK), acetone, Pyranton, Methylal(dimethoxymethane), methyl acetate, ethyl acetate, butylacetate, isobutyl acetate, phthalic acid methyl esters, ethyl formate and butanols.
5. the composition of any one in the claim 1 and 2, it is characterized in that dissolved (being total to) polymkeric substance (B) is (being total to) polymkeric substance that polymethylmethacrylate or methyl methacrylate and at least a wherein alkyl contain the alkyl acrylate of 1-10 carbon atom, its weight-average molecular weight is less than 1,000,000, preferred 500,000-1,000,000, especially 500,000-700,000.
6. the composition of any one among the claim 1-5 is characterized in that said composition viscosity is 0.1-5Pa.s.
7. adopt the goods of making by 80-100wt% methyl methacrylate and at least a (methyl) vinylformic acid (being total to) polymkeric substance that contains the alkene unsaturated link(age) and can obtain of 0-20wt%, comprising the joint that forms with the composition of any one among the claim 1-6 with the monomer of methyl methacrylate copolymer.
8. the goods of claim 7 is characterized in that by casting, extrude or injection moulding obtains (methyl) vinylformic acid (being total to) polymer materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97101235 CN1162001A (en) | 1996-01-31 | 1997-01-31 | Adhesive composition of (methyl) acrylic (co) polymer |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9601119 | 1996-01-31 | ||
| CN 97101235 CN1162001A (en) | 1996-01-31 | 1997-01-31 | Adhesive composition of (methyl) acrylic (co) polymer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1162001A true CN1162001A (en) | 1997-10-15 |
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ID=5165600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97101235 Pending CN1162001A (en) | 1996-01-31 | 1997-01-31 | Adhesive composition of (methyl) acrylic (co) polymer |
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| Country | Link |
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| CN (1) | CN1162001A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102863930A (en) * | 2012-10-16 | 2013-01-09 | 四川省玻纤集团有限公司 | Adhesive and preparation method thereof |
| CN103237656A (en) * | 2010-12-03 | 2013-08-07 | 3M创新有限公司 | Pressure sensitive adhesive and adhesive tape |
-
1997
- 1997-01-31 CN CN 97101235 patent/CN1162001A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103237656A (en) * | 2010-12-03 | 2013-08-07 | 3M创新有限公司 | Pressure sensitive adhesive and adhesive tape |
| CN102863930A (en) * | 2012-10-16 | 2013-01-09 | 四川省玻纤集团有限公司 | Adhesive and preparation method thereof |
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