CN1646647A - Aqueous coating composition based on epoxybutene polyethers - Google Patents
Aqueous coating composition based on epoxybutene polyethers Download PDFInfo
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- CN1646647A CN1646647A CN 03808208 CN03808208A CN1646647A CN 1646647 A CN1646647 A CN 1646647A CN 03808208 CN03808208 CN 03808208 CN 03808208 A CN03808208 A CN 03808208A CN 1646647 A CN1646647 A CN 1646647A
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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
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/0804—Manufacture of polymers containing ionic or ionogenic groups
- C08G18/0819—Manufacture of polymers containing ionic or ionogenic groups containing anionic or anionogenic groups
- C08G18/0823—Manufacture of polymers containing ionic or ionogenic groups containing anionic or anionogenic groups containing carboxylate salt groups or groups forming them
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
- C08G18/12—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6625—Compounds of groups C08G18/42, C08G18/48, or C08G18/52 with compounds of group C08G18/34
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- 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
- C08G18/67—Unsaturated compounds having active hydrogen
- C08G18/6795—Unsaturated 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
- C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
- C08G65/04—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers only
- C08G65/06—Cyclic ethers having no atoms other than carbon and hydrogen outside the ring
- C08G65/14—Unsaturated oxiranes
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- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
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- Polyurethanes Or Polyureas (AREA)
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- Macromonomer-Based Addition Polymer (AREA)
Abstract
The invention relates to water-dilutable polyurethanes containing structural units derived from 3, 4-epoxy-1-butene, and to aqueous dispersions containing said polyurethanes. The invention also relates to a method for producing said polyurethanes and to the use thereof as aqueous oxidatively drying and/or UV-crosslinking coatings.
Description
Technical field
The present invention relates to contain by 3 the water-dilutable polyurethane of 4-epoxy-1-butylene deutero-structural unit, and the water dispersion that contains this kind urethane, its preparation method and as the application of water-based oxidation-drying and/or ultraviolet-crosslinked coating composition.
Background technology
Contain 3, the polymerizable compound of 4-epoxy-1-butylene structural unit is known in principle.For example, EP-A 0 217 660 describes the method that adopts poly-(alpha-hydroxy carboxylic acid compounds) multipolymer of olefinic unsaturated epoxide preparation.
US-A 5,393, and 867 disclose and a kind ofly pass through 3, hydroxyl-functional polyethers that 4-epoxy-1-butylene obtains with the polyreaction of palladium catalyst.
EP-A 0 859 021 describes a kind of compound with vinyl group pendant, by (a) contain compound, (b) multi-element compounds or its acid anhydrides of at least one vinyl groups and at least one epoxide group and randomly the reaction between (c) CH-acid compound and the epoxidized derivs thereof prepare.
WO 00/66646 describes by carboxyl-functional polyester with 3, and 4-epoxy-1-butylene is derived and no oil, the oxidation-dry vibrin of producing, and this kind resin and organic solvent and dry catalyst are combined in the application in the drying at room temperature coating.
At last, WO 00/66649 describes can be by 3, and 4-epoxy butylene is with the coating composition based on polyethers-alcohol of water or pure ring-opening polymerization preparation.Polyethers-the alcohol for preparing by this kind mode can be used as reactive thinner in oxidation-dry paint or base-material and as the structural unit of this kind base-material.
The shortcoming of known water-based one-pot lacquer is in the coating technology so far, and for example, water-miscible paint even if add siccative as dry catalyst, and only can obtain moderate membrane hardness in that the room temperature oxidation-crosslinked drying is usually carried out very slowly.On the other hand, ultraviolet-curable water-borne one-pot lacquer at the ultraviolet rays irradiation dose lower or fully according to less than position (shadow region) show crosslinked deficiency.This paint film has the character at this field lower level.
Summary of the invention
Thereby, the purpose of this invention is to provide a kind of aqueous dispersion, its can oxidation-drying and/or with ultraviolet light cross-linking and can be processed into and have high performance one-pot lacquer, especially at appearance property, hardness, anti-solvent and the Weather of paint film and fast aspect such as dried.
Now can reach this purpose by a kind of water-dilutable polymkeric substance is provided, this polymkeric substance comprises urethano group and 3, and 4-epoxy-1-butylene structural unit also can be used as the basis of one-pot water dispersion.
Therefore, the invention provides a kind of water-dilutable polymkeric substance, it comprises urethano group and has ion and/or potential ionic group, is characterised in that this polymkeric substance comprises the repeating unit (A1) of general formula (I) and/or the repeating unit (A2) of general formula (II),
(II)。
Repeating unit A1, A2 or mixture A1/A2 in polymkeric substance with block
Form or exist with the mixing block form of two kinds of structural units with p repeating unit, wherein n, m and p represent 3～100 integer separately.
A1 or A2 structural unit also can be distributed in the multipolymer differently.
A1 and/or the A2 unit content in polymkeric substance of the present invention is between 2～80wt%, preferred 5～50wt%, especially preferred 8～35wt%.
Structural unit A1 that polymkeric substance of the present invention comprises and/or A2 can be by 3, and the oxirane ring open loop of 4-epoxy-1-butylene obtains.Here, 3,4-epoxy-1-butylene also may add on the nucleophilic center of polymkeric substance or oligomer chain by the open loop (one or many) of oxirane ring, for example, adds on COOH-, OH-or the NH-official energy end of the chain.On the other hand, also can adopt by 3, the Aethoxy Sklerol-oligopolymer with one or more oh groups of the ring-opening polymerization preparation of 4-epoxy-1-butylene or polymkeric substance are as the unit that constitutes polyurethane chain, randomly at other polymeric monomers with this understanding, for example, under the existence of oxyethane, propylene oxide or butylene oxide ring.Structural unit A1 and/or A2 preferably are incorporated in the urethane by being incorporated into hydroxyl-functional polyethers-polyvalent alcohol.
Polyether glycol can constitute (homopolymer) by repeating unit A1 and/or A2 fully, perhaps, except by the initiator composition that is attached in the chain, also can be used as with other can be under this kind condition the polymeric monomer, for example the multipolymer with oxyethane, propylene oxide or butylene oxide ring exists.The big initiator that contains repeating unit above-mentioned also can be used for by 3, and the homopolymerization of 4-epoxy-1-butylene prepares the purpose of polyethers-alcohol.The catalyzer that is fit to preparation polyethers-alcohol for example is KOH, the salt of trifluoromethanesulfonic acid or itself and yttrium or other lanthanide series metals, according to US-A 5,393, and 867 palladium (O) compound closes-palladium (O) as four (triphenylphosphines).
Preferably,, adopt in the ring-opening polymerization of 4-epoxy butylene double metal cyanide-catalyzed (DMC catalysis), prepare polyethers-alcohol as starting molecule with alcohol 3.The polymerization of the epoxide of dmc catalyst and this kind of employing catalyzer is described in, for example, and among the EP-A 0 700 949.
Polymkeric substance of the present invention comprises 1～40wt% urethano group [NHCOO], preferred 2～30wt% urethano group, especially preferred 5～25wt%, more specifically preferred 15～25wt% urethano group.
Polymkeric substance of the present invention comprises 9～100meq/100g ion and/or potential ionic group sum in addition, so that reach dispersiveness or solvability in water medium.The total content of ion and/or potential ionic group is preferably between 20～60meq/100g, especially preferred 25～50meq/100g.
Water-dilutable polymkeric substance of the present invention preferably comprises the reaction product A of following component),
(a1) 5～80wt%, preferred 10～60wt% polyisocyanates,
(a2) 10～80wt%, preferred 40～70wt% polyvalent alcohol and/or polyamines, molecular-weight average M
nAt least be 400,
(a3) 2～15wt%, preferred 3～10wt% contain the compound of at least one group that can react with isocyanate groups and at least one ion and/or potential ionic group,
(a4) 0～20wt%, preferred 1～10wt% low molecular weight polyols and/or secondary polyamine,
(a5) 0～20wt% chain terminator,
(a6) 0～20wt% chain extension agent, it comprises the group that at least two energy and isocyanate groups react and is different from (a2), (a3) and (a4).
The molecular-weight average M of water-dilutable polymkeric substance of the present invention
nBetween 1,000～50,000, preferred 1,600～10,000.
This polyisocyanates, preferred vulcabond (a1) they are urethane and lacquer field compound known, for example, and aliphatic series, cyclic aliphatic or aromatic diisocyanate.
That suitable is general formula Q (NCO)
2Compound, wherein Q represents 4～40 carbon atoms, the alkyl of preferred 4～20 carbon atoms.The preferably aliphatic C of Q
4～C
12Group, cyclic aliphatic C
6～C
15Group, aromatics C
6～C
15Group or araliphatic C
7～C
15Group.
Especially preferred vulcabond for example is tetramethylene-vulcabond, hexa-methylene-vulcabond, ten dimethylenes-vulcabond, 1,4-two isocyanato-s-hexanaphthene, 3-isocyanato-methyl-3,5,5-trimethylcyclohexyl-isocyanic ester (isophorone diisocyanate), 4,4 '-two isocyanato-dicyclohexyl methyl hydrides, 4,4 '-two isocyanato-s-2,2-dicyclohexyl propane, 1,4-two isocyanato-benzene, 2,4-or 2,6-two isocyanato-toluene and these mixture of isomers, 4,4 ' or 2,4 '-two isocyanato-ditanes, 4,4 '-two isocyanato-s-2, the 2-diphenyl propane, p-Xylol-vulcabond and α, α, α ', α '-tetramethyl---or-mixture that right-dimethylbenzene-vulcabond and these compounds are formed.
Except these simple polyisocyanates, in connecting the group of isocyanate groups, contain heteroatoms and/or functionality and also be fit to more than or equal to those of 2NCO group per molecule.The example of these compounds is urea groups, iminooxadiazinedionepolyisocyanates-diketone group, uretdion groups or biuret group and the 4-isocyanato--methyl isophthalic acids that contain carbodiimide groups, allophanate groups, tricarbimide ester group, carbamate groups, acidylate, the polymeric polyisocyanate of 8-octane-vulcabond (nonane-triisocyanate).
About other suitable polyisocyanates, can referring to, for example, DE-A 29 28 552, p.14～16.The mixture of these compounds also is fit to.
The molecular-weight average M of component (a2)
nPreferably between 400～5,000, especially preferred 800～2,000.Hydroxyl value or amine value be generally between 22～400, and be preferred 50～200, especially preferred 80～160mg KOH/g.
Suitable polyvalent alcohol (a2) is a polyurethane chemistry field compound known, for example, and polyethers-polyvalent alcohol, polyester-polyvalent alcohol, polycarbonate-polyvalent alcohol, polyester-amides-polyvalent alcohol, polymeric amide-polyvalent alcohol, Resins, epoxy-polyvalent alcohol and and CO thereof
2Reaction product, polyacrylic ester-polyvalent alcohol and similar compounds.This type of polyvalent alcohol also can be used as mixture and uses, and for example is described in DE-A 20 20 905, DE-A 23 14513 and DE-A 31 24 784 and EP-A 0 120466.
Substitute oh group, the compound of component (a2) also can contain uncle or secondary amino group (certain proportion or all) as the NCO-reactive group.
The aspartate of above-mentioned molecular weight, for example, at EP-A 0 403 921, those that mention in p.4～5 also are suitable as component (a2).This kind secondary amine also can use with the form of mixtures of polyvalent alcohol.
Preferred polyhydric alcohols is polyethers-and polyester-polyvalent alcohol, and especially preferably only has terminal hydroxy group and functionality smaller or equal to 3, those of preferred 2.8～2.
Preferred polyester-polyvalent alcohol be known two-and randomly many (three, four) unit alcohol and list-, two-and randomly many (three, four) first carboxylic acid, the perhaps polycondensation product of hydroxycarboxylic acid or lactone.Substitute free poly carboxylic acid, also can use the corresponding polycarboxylic acid anhydrides of lower alcohol or corresponding polycarboxylate to prepare this polyester.The example of suitable glycol is ethylene glycol, butyleneglycol, glycol ether, triglycol, polyalkylene glycol, and for example, polyoxyethylene glycol also has propylene glycol, fourth-1 in addition, the 4-glycol, oneself-1,6-glycol, neopentyl glycol or hydroxy new pentane acid DOPCP.Oneself-1,6-glycol, neopentyl glycol or hydroxy new pentane acid DOPCP are preferred compounds.Here, follow the polyvalent alcohol of use also can enumerate as optional, for example TriMethylolPropane(TMP), glycerine, tetrahydroxybutane, tetramethylolmethane, trishydroxymethyl benzene or isocyanuric acid three hydroxyl ethyl esters.
Suitable two-or poly carboxylic acid for example be phthalic acid, m-phthalic acid, terephthalic acid, tetrahydrophthalic acid, hexahydrophthalic acid, cyclohexane cyclohexanedimethanodibasic, hexanodioic acid, nonane diacid, sebacic acid, pentanedioic acid, tetrachlorophthalic acid, toxilic acid, fumaric acid, methylene-succinic acid, propanedioic acid, suberic acid, 2-methylsuccinic acid, 3,3-diethyl glutarate, 2,2-dimethyl succinate, trimellitic acid or pyromellitic acid.These sour acid anhydrides also can use, if present.Therefore, for the purposes of the present invention, acid anhydrides covered in the term " acid ".Monocarboxylic acid also can use, as long as the average functionality of polyvalent alcohol is more than or equal to 2.
Suitable preparation has the polyester-hydroxyl groups carboxylic acid of terminal hydroxy group, for example is hydroxycaproic acid, hydroxybutyric acid, hydroxydecanoic acid, oxystearic acid etc.Suitable lactone for example is caprolactone, butyrolactone etc.
Especially particularly preferably be the polyethers-polyvalent alcohol that completely or partially contains A1 and/or A2 repeating unit, and polyoxyethylene-polyvalent alcohol, polyoxypropylene-polyvalent alcohol, polyoxy butylene-polyvalent alcohol or polytetrahydrofuran with terminal hydroxy groups.
Polymkeric substance of the present invention also can comprise in addition and not contain A1 and/or A2 repeating unit but per molecule has the polyoxyalkylene ether of at least one hydroxyl or amino group, for example, can by pure and mild by molecular weight between 400～40,000 polyoxyethylene/polyoxypropylene block preparation.
In a preferred embodiment of the invention, component (a2) comprises at least one certainty ratio and contains single-and/or the oligomer ester or the polyester of polyunsaturated fatty acid.Suitable fatty acids for example is fatty acid distribution of coconut oil, soy(a)-bean oil fatty acid, sunflower oil lipid acid, Castor Oil Fatty Acid, ricinene acid, peanut oil fatty acid, ready denier oil acid or conjuene lipid acid.Suitable monocarboxylic acid in addition for example is phenylformic acid, p t butylbenzoic acid, hexahydrobenzene formic acid, 2 ethyl hexanoic acid, different n-nonanoic acid, capric acid or octadecanoic acid.Soy(a)-bean oil fatty acid or 70～100wt% soy(a)-bean oil fatty acid and the benzoic mixture of 0～30wt% preferably are used as monocarboxylic acid.Polymkeric substance of the present invention thereby preferably except the allyl double bonds that exists, contains single-or the two keys of C=C of polyunsaturated fatty acid in addition in structural unit A1 and/or A2.
In another kind of embodiment preferred, component (a2) comprises the such polyvalent alcohol of at least one certainty ratio, and they also contain general formula (III) acrylate and/or methacrylate unit A3 in addition) in the two keys of C=C.
The preferred employing comprises oh group and the hydroxyl value polyester-acrylate between 30～300mg KOH/g.7 class monomer components can be used to prepare hydroxyl-functional polyester-acrylate altogether:
1. (ring) alkanediol for example, has the oh group of bonding on (ring) aliphatic series, molecular weight ranges is between 62～286 dibasic alcohol, for example, ethylene glycol, 1,2-and 1, ammediol, 1,2,1,3 and 1, the 4-butyleneglycol, 1, the 5-pentanediol, 1, the 6-hexylene glycol, neopentyl glycol, hexanaphthene-1, the 4-dimethanol, 1,2-and 1,4-cyclohexane diol, 2-ethyl-2-butyl propylene glycol and the glycol that contains ether-oxygen, for example, glycol ether, triglycol, Tetraglycol 99, dipropylene glycol, tripropylene glycol or maximum molecular weight are 2,000, preferred 1,000, preferred especially 500 polyoxyethylene glycol, polypropylene glycol or polytetramethylene glycol.The reaction product of above-mentioned glycol and 6-caprolactone or other lactones also can be used as glycol.
2. molecular weight is between 92～254 ternary-and alcohol of Gao Yuan more, for example, glycerine, TriMethylolPropane(TMP), tetramethylolmethane, Dipentaerythritol and sorbyl alcohol or serve as the polyethers that starts molecule with these alcohol, for example, the reaction product of 1mol TriMethylolPropane(TMP) and 4mol oxyethane.
3. monohydroxy-alcohol, for example, ethanol, 1-and 2-propyl alcohol, 1-and 2-butanols, 1-hexanol, 2-Ethylhexyl Alcohol, hexalin and benzylalcohol.
4. molecular weight ranges is between 104～600 dicarboxylic acid and/or its acid anhydrides, for example, phthalic acid, Tetra hydro Phthalic anhydride, m-phthalic acid, tetrahydrophthalic acid, Tetra Hydro Phthalic Anhydride, hexahydrophthalic acid, hexahydrophthalic anhydride, cyclohexane cyclohexanedimethanodibasic, maleic anhydride, fumaric acid, propanedioic acid, succsinic acid, succinyl oxide, pentanedioic acid, hexanodioic acid, pimelic acid, suberic acid, sebacic acid, dodecanedioic acid and hydrogenation dimer (fatty acid) yl.
5. the carboxylic acid of higher functionality and acid anhydrides thereof, for example, trimellitic acid and trimellitic acid 1,2-anhydride.
6. monocarboxylic acid, for example, phenylformic acid, hexahydrobenzoic acid, 2 ethyl hexanoic acid, caproic acid, sad, capric acid, lauric acid and natural existence and synthetic lipid acid.
7. vinylformic acid, methacrylic acid and propylene dimer acid.
Particularly preferred hydroxyl polyester-acrylate comprises at least a component and at least a component and at least a reaction product that is selected from the component of classification 7 that is selected from classification 4 or 5 that is selected from classification 1 or 2.
Also can in polyester-acrylate that the present invention uses, be incorporated into and have dissemination and be the group that prior art is known, for example be described in the group in " the organic coating progress " 9 (1981), 291～296.For example, certain proportion polyoxyethylene glycol and/or methoxy poly (ethylene glycol) can be used as alkoxide component in conjunction with entering.The compound that can enumerate for example is the polyoxyethylene glycol of beginning (polymerization) on alcohol and the monomethyl ether of polypropylene glycol and segmented copolymer and these polyglycol.Preferred polyethylene glycol 1500 and/or polyoxyethylene glycol 500 monomethyl ethers.
Also can allow in addition some (excessive) carboxylic group, particularly (methyl) acrylic acid those, with single-, two-or polyepoxide react.Preferred epoxide is the epoxide (glycidyl ether) of monomer, oligomeric or polymerization dihydroxyphenyl propane, Bisphenol F, hexylene glycol and/or butyleneglycol.This reaction especially can be used to increase the hydroxyl value of polyester-acrylate, because oh group all generates in epoxide-acid-respons in every kind of operating mode.
The preparation that is fit to polyester-acrylate of the present invention is described in, for example, DE-A-4 040290, DE-A-3 316 592 and P.K.T.Oldring (chief editor) " chemistry of ultraviolet and electron beam coating, printing ink and lacquer formulations and technology " volume 2,1991 SITA Technology, London, p.123～135.
The acid number of polyester-acrylate is smaller or equal to 20mg KOH/g, preferably smaller or equal to 10mgKOH/g, especially preferably smaller or equal to 5mg KOH/g.
Alternatively, also can use itself be known and have the epoxy acrylate of the hydroxyl group of 20～300mg KOH/g hydroxyl value, the polyethers-acrylate of hydroxyl group or the polyurethane-acrylate of hydroxyl group, and mixture each other and with the mixture of the unsaturated polyester of hydroxyl group, also have the mixture with polyester-acrylate, or the mixture of the unsaturated polyester of hydroxyl group and polyester-acrylate.
Therefore, polymkeric substance of the present invention preferably except the allyl double bonds that exists, contains (methyl) acrylic double bond in addition in the structural unit of A1 and/or A2.
The compound that is suitable as component (a3) is to contain those of at least a group that can react with isocyanate groups and at least a ion and/or potential ionic group.Those groups that can form ionic group are interpreted as potential ionic group.Ion or potential ionic group for example are carboxyl, sulfonic acid, Phosphoric acid or phosphonic acid group or its corresponding negatively charged ion.Carboxyl/carboxylicesters and/or sulfone/sulfonate ester group are preferred.Suitable component (a3) for example is described in US-A 3,412,054, row 1 and 2, and US-A 3,640,924, row 3 and at DE-A 26 24 442, pp.25～26, for referencial use in these receipts.
The compound of amido-containing group (a3), for example, α, δ-Ornithine or 2,4-diamino-toluene-5-sulfonic acid also is suitable.The mixture of these compounds (a3) also can use.
Especially preferred compound (a3) is to contain at least one carboxylic group, the alcohol of preferred 1～3 carboxylic group per molecule.The example of these compounds is hydroxypentanoic acids, dihydroxy carboxylic acids such as α, α-dihydroxyalkyl paraffinic acid, α particularly, α-dihydroxymethyl paraffinic acid, for example, 2,2-dihydroxymethyl acetate, 2,2-dimethylol propionic acid, 2,2-dimethylolpropionic acid and 2,2-dihydroxymethyl valeric acid, and dihydroxysuccinic acid also have polyhydroxy-acid, for example, glyconic acid.2, the 2-dimethylol propionic acid is very particularly preferred.
The low molecular weight polyols and/or the secondary polyamine (a4) that randomly are used to constitute polymkeric substance of the present invention generally have the effect that makes polymer chain become stiff.Their molecular weight is between 62～400, and is preferred 62～200, and can contain aliphatic series, cyclic aliphatic or aromatic group.
The suitable component (a4) that can enumerate is the low molecular weight polyols of maximum about 20 carbon atom per molecules, for example, and ethylene glycol, glycol ether, 1,2-propylene glycol, 1, ammediol, 1,4-butyleneglycol, 1,3-butyleneglycol, cyclohexane diol, 1,4-cyclohexanedimethanol, 1,6-hexylene glycol, dihydroxyphenyl propane (2, two (4-the hydroxyphenyl)-propane of 2-), Hydrogenated Bisphenol A (2, two (4-the hydroxy-cyclohexyl)-propane of 2-) and aspartate, for example, describe among the EP-A 0 403 924, and composition thereof.Trivalent alcohol, for example, TriMethylolPropane(TMP) and/or glycerine also can be used.Comprise the highest 5 on water, short chain polyvalent alcohol or polyamine beginning polymeric epoxy butylene unit (A1/A2) and molecular-weight average also be suitable less than 400 polyvalent alcohol.
Polymkeric substance of the present invention also can randomly contain unit (a5), and the every kind of situation in this unit all is in the end of the chain and with end of the chain shutoff, promptly so-called chain terminator.
Suitable component (a5) be by deriving with the monofunctional compound that the NCO group reacts, for example, and monoamine, preferred list-secondary amine, perhaps monohydroxy-alcohol.Here the example that can enumerate is the derivative of methylamine, ethamine, propylamine, butylamine, octylame, lauryl amine, octadecane amine, different nonyl oxygen base propylamine, dimethylamine, diethylamine, dipropyl amine, dibutylamine, N-methyl-amino propylamine, the amino propylamine of diethyl (methyl), morpholine, piperidines or its replacement, the amidoamines that generates by di-primary amine and monocarboxylic acid, the single ketones imines that generates by di-primary amine and primary/tertiary amine, for example, N, the N-dimethylamino propylamine.
The monohydroxy of vinylformic acid and/or methacrylic acid-sense ester, so-called (methyl) acrylate also is fit to do component (a5).The example of this kind compound is a dihydroxy alcohol, for example, and list (methyl) acrylate of ethylene glycol, various isomery propylene glycol and butyleneglycol, perhaps polyhydroxy-alcohol, for example, (methyl) acrylate of TriMethylolPropane(TMP), glycerine and tetramethylolmethane, they on average contain 1 free hydroxyl group group.
Preferred compound (a5) is to contain those of active hydrogen that the NCO group had differential responses.These for example, are also to contain secondary amino group except containing the primary amino group, perhaps also contain carboxylic group except containing oh group, perhaps also contain the compound of oh group except containing amino group (uncle or secondary), and preferred back is a kind of.The example of these compounds is primary/secondary amine, for example, 3-amino-1-methylamino--propane, 3-amino-1-ethylamino propane, 3-amino-1-cyclohexyl aminopropane, 3-amino-1-methylamino-butane, the monohydroxy carboxylic acid, for example, oxyacetic acid, lactic acid or oxysuccinic acid, and other alkanolamine, for example, N-N-aminoethyl ethanolamine, thanomin, 3-aminopropanol, neopentyl alcohol amine particularly preferably are diethanolamine.Based on the aspartate of amino alcohol above-mentioned, for example, in EP-A 0 743 333, mention, also be fit to.
Polymkeric substance of the present invention also can randomly contain by so-called chain extension agent deutero-unit (a6).Here, possible chain extension agent is the known compound that can react with the NCO group, and two functional compounds preferably, and they are different from (a2), (a3), (a4) and (a5) and usually have molecular-weight average less than 400.Here the example that can enumerate is water, hydrazine, adipic dihydrazide, many (two) amine, for example, quadrol, diethylenetriamine, dimethyl ethylene diamine, diaminopropanes, hexamethylene-diamine, isophorone diamine and 4,4 '-diamino-dicyclohexyl methane, they also can have substituting group, for example, oh group, and the mixture of compound above-mentioned.This type of polyamines for example is disclosed among the DE-A 36 44 371.
The preparation of polymkeric substance of the present invention is described in the prior art, for example, and in EP-A 0 355682, EP-A 0 427 028 or DE-A 3 901 190.
For example, its preparation can be implemented according to such program, wherein at first prepares the prepolymer of isocyanate-functional, and in second step, prepare OH-and/or NH-functional compound by with compound (a5) and/or (a6) reacting, as, for example, disclosed among the EP-A 0 355 682.Yet its preparation also can be implemented like this: directly generate the hydroxyl group urethane resin by the reaction between the component (a1)～(a6), as, for example, described in the EP-A 0 427 028.
Polymer A of the present invention) preferably according to such program preparation, wherein at first by component (a1, polyisocyanates), (a2, polyvalent alcohol) and randomly component (a4, low molecular weight polyols) and component (a3) preparation on average contain at least 1.7, preferred 2～2.5 free isocyanate groups are rolled into a ball the polyurethane prepolymer of per molecule, and this prepolymer completely or partially reacts in non-aqueous system with component (a5) and/or (a6) then.
Polyisocyanates is with the excessive the inventive method that is used for respect to polyvalent alcohol (a2)～(a4), so that obtain to have the product of free isocyanate groups group.These isocyanate groups are end group and/or side group, preferred end group.Here, the quantity of polyisocyanates is suitable for the equivalence ratio that is high enough to make the oh group sum in isocyanate groups and the polyvalent alcohol (a2)～(a4) between 1.05～2.0, and preferred 1.1～1.6.
The preparation of prepolymer is implemented 40 ℃～140 ℃ temperature usually, specifically decides on the reactivity of used isocyanic ester.Can adopt appropriate catalyst, for example known those of NCO-OH reaction of quickening of those skilled in the art quicken the ammonia esterification.Example is a tertiary amine, for example, and triethylamine, organic compound such as dibutyltin oxide, dibutyl tin laurate or two (2 ethyl hexanoic acid) tin or other organometallic compounds.
The ammonia esterification preferably is being enforcement in the presence of the inert solvent to isocyanic ester.With those solvents of water compatible, for example, ether, ketone and ester and N-Methyl pyrrolidone may be particularly suitable for this kind purposes.The consumption of this solvent should not surpass 25wt%, and preferably between 5～15wt%, every kind of situation is a benchmark in urethane resin and solvent gross weight all.Here, the polyisocyanates in the solution can join in the solution of other components fast.
Subsequently, prepolymer or its solution and The compounds of this invention (a5) and/or (a6) react, during temperature be suitable at 0 ℃～90 ℃, preferred 20 ℃～60 ℃, dropping to actual until the NCO of prepolymer content is zero.For this reason, compound (a5) uses with the quantity that is less than or surpasses slightly formula weight, and this quantity is generally between 40～110wt%, the stoichiometric amount that preferred 60～105wt% requires.If use reactive less vulcabond to prepare prepolymer, then should reaction also can in water, carry out simultaneously with neutralization.Some (unneutralized) COOH group, preferred 5～30wt%, can be randomly with difunctional's compound that can react with the COOH group for example the diethoxy compound react.
Alternatively, before scatter operation, certain proportion (is benchmark in the isocyanate content) prepolymer also can react with (a5), and after scatter operation, all or part of residual isocyanate group reacts with component (a6) more then.Here, the neutralization of carboxylic group both can be implemented in prepolymer and before disperseing by adding neutralizing agent, also can implement in disperse water by the amine that adds neutralizing effect during scatter operation.
Polymer A of the present invention) also can prepare according to the program that allows component (a1)～(a6) direct reaction generate hydroxyl-functional resins.The reaction conditions here is corresponding to the relevant described condition of preparation that contains NCO group prepolymer.These class methods are described in, for example, and among the EP-A 0 427 028.
The another kind of possible preparation method of polyether polyols with reduced unsaturation of the present invention comprises: order contains COOH and/or SO
3H group and in addition by two-and/or polyisocyanates contain the resin of one or more isocyanic ester-reactive groups, react with the polyethers-alcohol that contains at least one certainty ratio repeating unit A1 and/or A2.The resin that is fit to this method for example is vinyl polymer, polyester, epoxide or hybrid resin (for example, acrylate-grafted polyester or urethane), for example well known in the prior art those.
Tertiary amine, for example, trialkylamine has 1～12 in each alkyl, preferred 1～6 carbon atom person, being particularly suitable for is used for neutralizing obtained contain COOH and/or SO
3The product of H group.Example is Trimethylamine 99, triethylamine, methyl-diethyl-amine, tripropyl amine and diisopropylethylamine.These alkyl groups also can have, for example, oh group, for example dialkyl group one alkanol-, alkyl two alkanols-and the situation of trialkanolamine in, as dimethylethanolamine, preferably be used as neutralizing agent.Mineral alkali, for example, ammonia or sodium hydroxide or potassium hydroxide also can randomly be used as neutralizing agent.The consumption of this neutralizing agent, according to the molar ratio computing of the acid groups of prepolymer, between 0.3: 1～1.3: 1, preferred 0.5: 1～1: 1.
COOH or SO
3The neutralization of H group can before the ammonia esterification, during or carry out later on.Neutralization reaction is implemented between preferred 40～80 ℃ normally in room temperature～100 ℃.Here, can implement neutralization, for example, join moisture neutralizing agent in the urethane resin or conversely according to the mode of any requirement.Yet, also can at first neutralizing agent be joined in the urethane resin, and have only and add entry by this again.Generally speaking, obtain 20～70wt%, preferred 30～50wt% solids content by this kind mode.
The present invention also provides a kind of water dispersion, comprises:
A) 20～70wt%, at least a the present invention of preferred 25～50wt% contain the water-dilutable polymkeric substance of urethano group,
B) 0～20wt%, preferred 0～10wt% organic cosolvent, and
C) 10～70wt%, preferred 30～60wt% water.
The mixture of several polymkeric substance of the present invention (A) also can use.
Suitable organic cosolvent (B) is known traditional white spirit itself, for example, ethyl acetate, butylacetate, glycol monomethyl methyl-or-ethyl-ether-acetic ester, the 2-acetic ester of 1-methoxy-propyl, the acetic ester of 3-methoxyl group-normal-butyl, acetone, 2-butanone, 4-methyl-2 pentanone, pimelinketone, toluene, dimethylbenzene, chlorobenzene, petroleum solvent, contain, mainly be the mixture of the aromatic hydrocarbons of height replacement, for example, with trade(brand)name solvent naphtha, Solvesso
(ExxonMobil chemical company, Houston), Cypar
(Shell chemical company, Britain), CycloSol
(Shell chemical company), Tolu Sol
(Shell chemical company) and Shellsol
The commercially available product of (Shell chemical company), carbonic ether, as methylcarbonate, diethyl carbonate, carbonic acid 1,2-ethyl and carbonic acid 1, the inferior propyl ester of 2-, lactone such as beta-propiolactone, gamma-butyrolactone, 6-caprolactone and ε-methyl caprolactone, and diacetate esters, diethylene glycol dimethyl ether, dipropylene glycol dimethyl ether, glycol ether ethyl and the butyl ether-acetic ester, N-Methyl pyrrolidone and the N-methyl caprolactam that also have solvent such as propylene glycol, the perhaps mixture of any requirement of this kind solvent.
Organic cosolvent (B) can be after preparation or during join in the water dispersible polymkeric substance of the present invention or its dispersion that contains urethano group.At least some organic solvent can be pressed traditional way and adds between the preparation of polymkeric substance of the present invention or dispersed phase.For preparing the dispersion of hanging down cosolvent content or not containing cosolvent, also can during preparation technology, adopt solubility promoter, but remove it once more in the step afterwards.
In application as coating composition, contain the present invention contain urethano group water dispersible polymkeric substance dispersion or use separately or be used in combination with other water-based base-materials.This kind water-based base-material for example can be made of polyester, polyacrylic ester, polyepoxide or polyether polyols with reduced unsaturation.With the combination of radiation curing base-material, for example described in the EP-A-0 753 531, also can.The dispersion that contains polymkeric substance of the present invention can intactly be used, perhaps use with known auxiliary substance of lacquer technology and additive combination, for example cooperate pigment, coating and lacquer auxiliary agent, as anti-sludging agent, defoamer and/or wetting agent, flow control agent, reactive thinner, softening agent, catalyzer, solubility promoter or thickening material, so that produce coating.
The present invention also provides a kind of coating composition, and it comprises and contains the water dispersible polymkeric substance of urethano the present invention of group.
The dispersion that contains polymkeric substance of the present invention is used as the base-material that coating material production is used.This kind coating can be used for being coated with the base material of any requirement, for example, and timber, metal, plastics, paper, leather, textiles, felt, glass or mineral materials.
The preferred a kind of oxidation-dry water-borne coatings of producing is characterised in that, this coating composition comprises and contains urethano group's water-dilutable polymkeric substance of the present invention (A) as base-material.
It is crosslinked with promote the oxidation to add siccative.
The advantage that contains the dispersion of polymkeric substance of the present invention (A) is to make the production of the quick drying paint that does not add siccative to become possibility.
Equally preferably UV-solidified coating in the side of system is characterized in that, described coating composition contains polymkeric substance (A) water-dilutable of the present invention, that contain urethano group as base-material, and one or more light triggers.
The ultraviolet of Sheng Chaning-coating material solidified is characterised in that it compares with prior art ultraviolet-solidified paint and have good especially shade ability to cure in this way.In the coating of modeling structure particularly, be different from sheet structure, recurrent problem is, do not arrived by ultraviolet irradiation or the too low zone of irradiation dose, ultraviolet-solidified coating is too soft, be clamminess and/or lack tolerance.The after fixing of second mechanism by not relying on UV-light shows advantage here.
Suitable light trigger for example is the aromatic ketone compound, for example, and benzophenone, alkyl diphenyl ketone, 4,4 '-two (dimethylamino) benzophenone (Michler's keton), anthrone and halogenation benzophenone.Acylphosphine oxide, for example, 2,4,6-trimethylammonium-benzoyl-diphenyl phosphine oxide, phenyl glyoxylic esters, anthraquinone and derivative thereof, benzil ketals and benzene hydroxyalkyl ketone also are fit to.The mixture of these compounds also can use.
The coating composition that contains polymkeric substance of the present invention (A) can apply according to known way, for example, by apply, topple over, scraper coating, spraying, atomizing spraying, vortex-coating, roller coat or dip-coating.The drying of paint film can be carried out under room temperature or intensification condition, also can be by finishing in the baking that is up to 200 ℃.Preferred drying is carried out under room temperature or only a little higher than room temperature.If dispersion of the present invention comprises ultraviolet-curing component, then drying means can comprise the irradiation with UV-light in addition.
Between the coating dry epoch, preferably at first by currently known methods with water and, if use, other solvents are driven out of from coating, implement ultraviolet light irradiation subsequently, carry out oxidation-drying at last.
The invention still further relates to coating composition substrates coated with the water-dilutable polymkeric substance of the present invention (A) that contains urethano group.
Embodiment
Example
All percentile data all are weight percentage.
Example 1 (the present invention)
1,022g m-phthalic acid, 6,900g soy(a)-bean oil fatty acid, 1,278g phenylformic acid, 3,353g tetramethylolmethane and 911g Tetra hydro Phthalic anhydride are weighed in the 15L reaction vessel of the water separator that has agitator, heating unit and band refrigerating unit, are heated to 140 ℃ at 1h in the time under nitrogen then.This mixture further is heated to 220 ℃ at next 8h in the time, be less than 3 level until acid number so carry out condensation reaction under this temperature.So the viscosity of the vibrin that obtains (determining at 23 ℃ flowing time in 4 glasss of DIN according to the solution of 75% polyester in dimethylbenzene) is 105s, and its hydroxyl value is 175mg KOH/g.
The above-described polyester of 607g is first drawn in the 4L reaction vessel of band cooling, heating and whipping appts, and with 58g dimethylol propionic acid, 150g by 3,4-epoxy-1-butylene is with 3,4-dihydroxyl-1-butylene is heated to 80 ℃ together as line style polyether glycol, 75g N-Methyl pyrrolidone, 75g dipropylene glycol dme and the 22g tertiary amine of the hydroxyl value 75mgKOH/g of the ring-opening polymerization preparation that starts molecule, then mixture homogenization 30min.Subsequently, under vigorous stirring, add 185g 1-isocyanato--3,3,5-trimethylammonium-5-isocyanato-methylcyclohexane (IPDI), mixture heating up to 100 ℃ (utilizing the heat release of reaction) also is retained under this temperature and no longer includes the NCO group and pick.
This line style polyether glycol is to pass through down 37g (0.42mol) 3 at 120 ℃, 4-dihydroxyl-1-butylene, 600g 3, the solution of the former phenylformic acid trimethyl of 4-epoxy-1-butylene and 1mL (trimethylorthobenzoate) join in the solution of dmc catalyst in 5mL toluene of 50g according to EP-A 0 700 049 preparations.Select to add speed, so that make temperature of reaction be no more than 155 ℃.Temperature of reaction maintains 150 ℃ subsequently, and until 3,4-epoxy-1-butylene all reacts.The molecular weight of product adopts GPC (gel permeation chromatography art) to measure, and equals 2074mol, and polymolecularity M
w/ M
n=1.15.
Subsequently, product is with 1,000g distilled water 95 ℃ disperse and water and triethylamine with viscosity adjustment to 930mPa.s (D=40s
-1, 23 ℃).
So the ester modified vibrin of water-based, ammonia that obtains has the acid number of 26mg KOH/g, the mean particle size of 150nm and 45.6% solids content.
Example 2 (the present invention)
607g is first drawn in the 4L reaction vessel of band cooling, heating and whipping appts from the polyester of example 1, and with 58g dimethylol propionic acid, 150g by 3,4-epoxy-1-butylene and propylene oxide (mol ratio 50: 50) are with hydroxyl value 73mg KOH/g and the number-average molecular weight 1 of tripropylene glycol as the ring-opening polymerization preparation that starts molecule, 300 line style polyether glycol, 150g N-Methyl pyrrolidone and 22g triethylamine are heated to 80 ℃ together, then mixture homogenization 30min.Subsequently, under vigorous stirring, add 185g 1-isocyanato--3,3,5-trimethylammonium-5-isocyanato-methylcyclohexane (IPDI), mixture heating up is to the highest 100 ℃ (utilizing the heat release of reaction) and be retained under this temperature and no longer include the NCO group and pick.
This line style polyether glycol is catalyzer, starts molecule, propylene oxide and 3 according to example 1 preparation, and the reaction of 4-epoxy-1-butylene is to carry out in potheater.
Subsequently, product is with 1,000g distilled water 95 ℃ disperse and water and triethylamine with viscosity adjustment to 640mPa.s (D=40s
-1, 23 ℃).
So the ester modified vibrin of water-based, ammonia that obtains has the acid number of 26mg KOH/g, the mean particle size of 170nm and 45.8% solids content.
Example 3 (the present invention)
612g is first drawn in the 4L reaction vessel of band cooling, heating and whipping appts from the polyester of example 1, and with 58g dimethylol propionic acid, 150g pass through 3, the mixture of 4-epoxy-1-butylene and propylene oxide (mol ratio 50: 50) and propylene oxide polyethers is with the glycerine of hydroxyl value 238 hydroxyl value 56mg KOH/g and the number-average molecular weight 4 as the ring-opening polymerization preparation that starts molecule, 200 line style polyether triol, 150g N-Methyl pyrrolidone and 22g triethylamine are heated to 80 ℃ together, then mixture homogenization 30min.Subsequently, under vigorous stirring, add 180g 1-isocyanato--3,3,5-trimethylammonium-5-isocyanato-methylcyclohexane (IPDI), mixture heating up to 100 ℃ (utilizing the heat release of reaction) also is retained under this temperature and no longer includes the NCO group and pick.
This line style polyether glycol is catalyzer, starts molecule, propylene oxide and 3 according to example 1 preparation, and the reaction of 4-epoxy-1-butylene is carried out in potheater.
Subsequently, product is with 1,000g distilled water 95 ℃ disperse and water and triethylamine with viscosity adjustment to 1,070mPa.s (D=40s
-1, 23 ℃).
So the ester modified vibrin of water-based, ammonia that obtains has the acid number of 27mg KOH/g, the mean particle size of 200nm and 46.1% solids content.
Example 4 (the present invention)
602g is first drawn in the 4L reaction vessel of band cooling, heating and whipping appts from the polyester of example 1, and line style polyether glycol, 150g N-Methyl pyrrolidone and the 22g triethylamine of the hydroxyl value 75mg KOH/g of use is heated to 80 ℃ in 58g dimethylol propionic acid, 150g example 1, then mixture homogenization 30min.Subsequently, under vigorous stirring, add 190g 1-isocyanato--3,3,5-trimethylammonium-5-isocyanato-methylcyclohexane (IPDI), mixture heating up to 100 ℃ (utilizing the heat release of reaction) also is retained under this temperature and no longer includes the NCO group and pick.
Subsequently, product is with 1,000g distilled water 95 ℃ disperse and water and triethylamine with viscosity adjustment to 620mPa.s (D=40s
-1, 23 ℃).
So the ester modified vibrin of water-based, ammonia that obtains has the acid number of 26mg KOH/g, the mean particle size of 240nm and 45.7% solids content.
Example 5 (the present invention)
1,347g TriMethylolPropane(TMP), 5,631g soy(a)-bean oil fatty acid, 3,722g Tetra hydro Phthalic anhydride and 2, the 614g neopentyl glycol is weighed in the 15L reaction vessel of the water separator that has agitator, heating unit and band refrigerating unit, is heated to the highest 140 ℃ in the time under nitrogen at 1h then.This mixture further is heated to the highest 220 ℃ in the time at next 8h, be less than 3 level until acid number so carry out condensation reaction under this temperature.So the viscosity of the vibrin that obtains (determining at 23 ℃ flowing time in 4 glasss of DIN according to the solution of 80% polyester in dimethylbenzene) is 59s, and its hydroxyl value is 46mg KOH/g.
1, the above-described polyester precursor of 410g is first drawn in the 4L reaction vessel of band cooling, heating and whipping appts, and be heated to 100 ℃ with line style polyether glycol described in the example 1 of 151g dimethylol propionic acid, 390g hydroxyl value 75mgKOH/g and 650g N-Methyl pyrrolidone, mixture homogenization 30min then.Subsequently, it is cooled to 70 ℃, and under vigorous stirring, adds 650g 1-isocyanato--3,3,5-trimethylammonium-5-isocyanato-methylcyclohexane (IPDI), reaction mixture are retained to NCO content and reach 2.5% (about 10～15h) under this temperature and stirring.Subsequently the 114g triethylamine evenly is stirred to wherein.
In the 6L reaction vessel of band cooling, heating and whipping appts, in the time, with 2, the NCO prepolymer that 080g is heated to 55 ℃ acquisition like this under agitation is incorporated into 1 at 5～10min, and 395g is preheated in 30 ℃ the distilled water.Mixing temperature is controlled at about 40 ℃.This coarse dispersion is cooled to about 30 ℃, under agitation adds the solution of 36.4g quadrol in 815g distilled water then.Subsequently, mixture is at 35～40 ℃ of following restir 2h, and water and triethylamine be viscosity adjustment to 2 then, 300mPa.s (D=40s
-1, 23 ℃).
So the polyurethane dispersions that obtains has the acid number (100%) of 25mg KOH/g, the mean particle size of 42nm and 37.2% solids content.
Example 6 (Comparative Examples)
Preparation is based on the ester modified polyester dispersions of the ammonia of lipid acid
1, the polyester precursor of describing in the 126g example 1 is first drawn in the 4L reaction vessel of band cooling, heating and whipping appts, and be heated to 80 ℃ with 87.5g dimethylol propionic acid, 244g N-Methyl pyrrolidone and 33g triethylamine, mixture homogenization 30min then.Subsequently, under vigorous stirring, add 286.5g 1-isocyanato--3,3,5-trimethylammonium-5-isocyanato-methylcyclohexane (IPDI), mixture heating up to 100 ℃ (utilizing the heat release of reaction) also is retained under this temperature and no longer includes the NCO group and pick.
Subsequently, add the nonylphenol of 14.4g ethoxylation and mixture be distributed to 1, in the 400g water, homogenizing and with water and triethylamine with viscosity adjustment to 1,100mPa.s (D=40s
-1, 23 ℃).So the ester modified vibrin of water-based, ammonia that obtains has the acid number of 27mg KOH/g and 45% solids content.
Application example 1 (oxidation-dry finish paint):
Octasoligen
Co 7 aqua (cobaltic driers, 50% aqueous solution, Borchers company) is equivalent to 0.06% Co metal concentration, in solid resin (base-material 100%) is benchmark, join in the dispersion of example 1～5 and Comparative Examples 6, to be diluted to flowing time be about 30s (4 glasss of DIN, 23 ℃) to mixture and be applied to (dry film bed thickness 50 μ m) on degreasing sheet glass or the degreasing steel plate with scraper with water.At room temperature after the drying, obtain zero defect paint film with superperformance level.
Use properties based on dispersion application example 1 oxidation of example 1～6-drying lacquer:
| Dispersion from the following example | 20 ° of gloss | Absolutely dry | Anti-dimethylbenzene * | Pendulum-rocker hardness 2d/14d RT | Water-fast wrinkling (8/24h) | Water-fast loss of gloss *(3/8/24h) |
| ??1 | ????80 | ????7h | ????2 | ????24/76s | ??i.O/i.O. | ??0/2/4 |
| ??2 | ????77 | ????8h | ????2 | ????18/46s | ??i.O/i.O. | ??0/2-3/5 |
| ??3 | ????74 | ????8h | ????2 | ????16/54s | ??i.O/i.O. | ??0/3/5 |
| ??4 | ????71 | ????7h | ????2 | ????31/95s | ??i.O/i.O. | ??0/0/3 |
| ??5 | ????75 | ????7h | ????2 | ????21/35s | ??i.O/i.O. | ??0/1/4 |
| 6 (Comparative Examples) | ????78 | ????8h | ????2 | ????26/59s | Wrinkling/seriously wrinkling | ??2/4/5 |
*: 0～5 possible grade; 0=not damaged film, the film that the 5=damage is very serious
Table 1 shows that the dispersion for preparing according to example 1～5 of the present invention has improved water resistance.Under the situation of Comparative Examples 6, find only remarkable gloss forfeiture just to occur behind the 3h, and the slight wrinkle of paint film behind 8h, occurs, serious wrinkle and irreversible appears after having arrived 24h.On the other hand, the lacquer based on example 1～5 but shows obviously good result.
Example 7 (the present invention)
163.8g poly-1 of the line style polyether glycol of the hydroxyl value 75mg KOH/g that describes in the example 1,181g hydroxyl value 56mg KOH/g, 4-butanediol ethere, 37.2g dimethylol propionic acid, 18.3g 1,6-hexylene glycol and 97.4g N-Methyl pyrrolidone are mixed with each other in the 2L four neck flasks that have whipping appts, reflux exchanger and internal thermometer, mixture heating up to 70 ℃ adds 275.5g Desmodur then rapidly
W (Bayer AG (Leverkusen) product).Temperature remains on 80 ℃, and then, temperature is reduced to 70 ℃ when the NCO of prepolymer content reaches 4.4%, and adds the 19.6g triethylamine.Behind the 10min, the 500g prepolymer is transferred to second and is had agitator and charged in the 2L flask of 670g water (20 ℃) in 5min.Behind the vigorous stirring 10min, in 5min, add the mixture of hydrate, 8.4g quadrol and the 74.4g water of 5.2g hydrazine.Then, mixture stirs at 40 ℃, picks until no longer include NCO in dispersion.The mean particle size of this polyurethane dispersions is 69nm, solids content 35.3%.
A kind of varnish comprises 87.9% this polyurethane dispersions, 3.0% butyleneglycol, 1.0%Byk
028 (defoamer, Byk chemical company, Wesel), 0.2%Byk
024 (defoamer, Byk), 0.2%Byk
346 (the wetting additive of base material, Byk), 0.5%Byk
381 (flowing additive, Byk), 0.2%TS
100 (matting agent, Degussa company, Frankfort), 2.0%Aquamat
263 (wax/slip additive, Byk) and 2.0%Acrysol
RM 8 (5%, thickening material, Rohm ﹠amp; Haas, Philadelphia), be applied on the sheet glass by scraper with the scraper of gap width 200 μ m, and at room temperature dry 7 days.Obtain a kind of transparent, gloss paint film, pendulum-rocker hardness (drying at room temperature 14 days) is 115s.
Example 8 (the present invention)
163.8g poly-1 of the line style polyether glycol of the hydroxyl value 73mg KOH/g that describes in the example 2,181g hydroxyl value 56mg KOH/g, 4-butanediol ethere, 37.2g dimethylol propionic acid, 18.3g 1,6-hexylene glycol and 97.4g N-Methyl pyrrolidone, have in the 2L four neck flasks of whipping appts, reflux exchanger and internal thermometer one and to be mixed with each other, mixture heating up to 70 ℃ adds 275.5g Desmodur then rapidly
W (Bayer AG (Leverkusen) product).Temperature remains on 80 ℃, and then, temperature is reduced to 70 ℃ when the NCO of prepolymer content reaches 4.4%, and adds the 19.6g triethylamine.Behind the 10min, the 500g prepolymer is transferred to second and is had agitator and charged in the 2L flask of 670g water (20 ℃) in 5min.Behind the vigorous stirring 10min, in 5min, add the mixture of hydrate, 8.4g quadrol and the 74.4g water of 5.2g hydrazine.Then, mixture stirs at 40 ℃, picks until no longer include NCO in dispersion.The mean particle size of this polyurethane dispersions is 70nm, solids content 35.3%.
A kind of varnish comprises 87.9% this polyurethane dispersions, 3.0% butyleneglycol, 1.0%Byk
028 (defoamer, Byk), 0.2%Byk
024 (defoamer, Byk), 0.2%Byk
346 (the wetting additive of base material, Byk), 0.5%Byk
381 (flowing additive, Byk), 0.2%TS
100 (matting agent, Degussa companies), 2.0%Aquamat
263 (wax/slip additive, Byk) and 2.0%Acrysol
RM 8 (5%, thickening material, Rohm ﹠amp; Haas), be applied on the sheet glass by scraper with the scraper of gap width 200 μ m, and at room temperature dry 7 days.Obtain a kind of transparent, gloss paint film, pendulum-rocker hardness (drying at room temperature 14 days) is 80s.
Example 9
The oligopolymer precursor that is used for example 10
3,200g Viscotrol C and 1,600g soya-bean oil and 2.4g dibutyltin oxide are weighed to and have in the 5L reactor that distills annex.Nitrogen gas stream (5l/h) is passed from reactant.Mixture is at 140min internal heating to 240 ℃.Behind 240 ℃ of maintenance 7h, the mixture cooling.Hydroxyl value is 109mg KOH/g, and acid number is 2.5 milligrams of KOH/g.
Example 10 (Comparative Examples):
The preparation of fatty acid-based polyurethane dispersions
56 milligrams of KOH/g of 339g hydroxyl value gather 1,4-butanediol ethere, 248g polyester oligomer precursor, 70g dimethylol propionic acid, 34g 1, and 6-hexylene glycol and 34g N-Methyl pyrrolidone are heated to 70 ℃, and mixture stirs until forming clear solution.Subsequently, add 516gDesmodur
W (Bayer AG, Leverkusen), mixture heating up to 100 ℃.It is stirred to NCO content reaches 4.1% under this temperature.Subsequently, it is cooled to 70 ℃, and adds the 52.6g triethylamine.
This solution of 650g is distributed under vigorous stirring in the 601g water, and water is to introduce with 30 ℃ temperature at first.After the scatter operation, mixture stirs 5min.Subsequently, the hydrate and the solution of 10.2g quadrol in 200g water that in 5min, add the 3.9g hydrazine.For isocyanate groups is reacted completely, mixture is stirred at 45 ℃ and no longer includes the NCO group and pick.
So the mean particle size of the polyurethane dispersions of preparation is 60nm, solids content 35%.
A kind of varnish comprises 87.9% this polyurethane dispersions, 3.0% butyleneglycol, 1.0%Byk
028 (defoamer, Byk), 0.2%Byk
024 (defoamer, Byk), 0.2%Byk
346 (the wetting additive of base material, Byk), 0.5%Byk
381 (flowing additive, Byk), 0.2%TS
100 (matting agent, Degussa companies), 2.0%Aquamat
263 (wax/slip additive, Byk) and 2.0%Acrysol
RM 8 (5%, thickening material, Rohm ﹠amp; Haas), be applied on the sheet glass by scraper with the scraper of gap width 200 μ m, and at room temperature dry 7 days.Obtain a kind of transparent, gloss paint film, pendulum-rocker hardness (drying at room temperature 14 days) is 75s.
Example 11 (the present invention)
Ultraviolet-curing and oxidation-dry dispersion
313.0g the polyester of the about 80mg KOH/g of hydroxy radical content-acrylate Larmomer
PE44F (polyester-acrylate; BASF AG, Ludwigshafen, DE) and 87.7g at first be incorporated in the 2L reaction vessel that has agitator, internal thermometer and gas feed (airflow of 2～3l/h) from polyether glycol, 21.0g dimethylol propionic acid, 0.5g dibutyl tin laurate and the 172.2g acetone of example 1, add 79.9g Desmodur subsequently
I (isophorone diisocyanate; Bayer AG, Leverkusen is DE) with 39.4g Desmodur
H (hexamethylene diisocyanate; Bayer AG, Leverkusen, DE), this mixture heating up refluxes to obtaining constant acetone.Till under this temperature reaction mixture being stirred to it and containing 1.6wt%NCO content.Then, it is cooled to 40 ℃, and adds the 15.8g triethylamine rapidly.Behind the 10min, reaction mixture is poured under vigorous stirring in the water of 18 ℃ of 938.1g.When forming dispersion, add the solution of 8.0g quadrol in 23.5g water.Mixture do not heat yet do not stir 30min with cooling off after, product carries out vacuum distilling (50mbar, the highest 50 ℃) and reaches 38.6wt% until solids content.The viscosity of dispersion is in 4 glasss of DIN, flowing time 24.7s, and its pH value is 8.6 after measured, mean particle size is 60.0nm according to the related spectrometry of laser (Zetasizer 1000, Malvern instrument company, Malvern, Britain).
Application example 12
1.5wt%Irgacure
500 (light trigger, the different chemical company of vapour Bart, Lampertheim, DE), the solid content meter by dispersion is stirred in the dispersion of the present invention of a example 11.After dispersion is placed and to be spent the night, the scraper that utilizes 150 μ m A/Fs with its blade coating to sheet glass.The sheet glass of coating at room temperature keeps 40min.Form a kind of limpid, transparent and dry and comfortable paint film.Subsequently, the sheet glass of this coating passes through from medium pressure mercury lamp (output 80W/cm lamp length) below with the speed of 5m/min.Behind 30min irradiation, show 59 K nig pendulum-rocker hardness by this kind mode ultraviolet-solidified paint film.At room temperature place during the 36h, pendulum-rocker hardness is elevated to 82.
Claims (16)
1. water-dilutable polymkeric substance, it comprises urethano group and has ion and/or potential ionic group, it is characterized in that this polymkeric substance comprises the repeating unit (A1) of general formula (I) and/or the repeating unit (A2) of general formula (II)
2. the water-dilutable polymkeric substance of claim 1 is characterized in that, the mixture of repeating unit A1, A2 or A1/A2 in polymkeric substance with block
Form or exist with the mixing block form of two kinds of structural units with p repeating unit, wherein n, m and p represent 3～100 integer separately.
3. claim 1 or 2 water-dilutable polymkeric substance is characterized in that this polymkeric substance is the reaction product that comprises following component:
(a1) 5～80wt% polyisocyanates,
(a2) 10～80wt% polyvalent alcohol and/or polyamines, its molecular-weight average M
nAt least be 400,
(a3) 2～15wt% contains the compound of at least one group that can react with isocyanate groups and at least one ion and/or potential ionic group,
(a4) 0～20wt% low molecular weight polyols and/or secondary polyamine,
(a5) 0～20wt% chain terminator,
(a6) 0～20wt% chain extension agent, it comprises the group that at least two energy and isocyanate groups react and is different from (a2), (a3) and (a4).
4. the water dispersible polymkeric substance of claim 1 is characterized in that, it comprise in addition single-or the polyunsaturated fatty acid structural unit in the two keys of C=C.
5. the water dispersible polymkeric substance of claim 1 is characterized in that, it comprise in addition general formula (III) vinylformic acid and or methacrylate unit A3 in the two keys of C=C,
6. the one or more of water-dilutable polymkeric substance of claim 1～5 is characterized in that, polymkeric substance has ion and/or the potential ionic group content of 9～100meq/100g.
7. the one or more of water-dilutable polymkeric substance of claim 1～6 is characterized in that, ion and/or potential ionic group are carboxyl and/or sulfonic acid group.
8. the one or more of water-dilutable polymkeric substance of claim 1～7 is characterized in that, polymkeric substance has urethano group [NHCOO] content of 1～40wt%.
9. the one or more of water-dilutable polymkeric substance of claim 1～8 is characterized in that, polymkeric substance has the structural unit A1 of 2～80wt% and/or the content of A2.
10. water dispersion, it comprises:
A) urethano that contains of at least a claim 1 of 20～70wt% is rolled into a ball the water-dilutable polymkeric substance,
B) 0～20wt% organic cosolvent, and
C) 10～70wt% water.
11. a coating composition, the urethano that contains that comprises claim 1 is rolled into a ball the water-dilutable polymkeric substance.
12. a method of producing oxidation-dry paint is characterized in that, this coating composition comprises the urethano that contains of claim 1 and rolls into a ball the water-dilutable polymkeric substance as base-material.
13. produce ultraviolet-coating material solidified method for one kind, it is characterized in that this coating composition comprises the urethano that contains of claim 1 and rolls into a ball the water-dilutable polymkeric substance as base-material, and one or more light triggers.
14. the urethano that contains of claim 1 is rolled into a ball the application that the water-dilutable polymkeric substance is used for production oxidation-dry paint.
15. the urethano group water-dilutable polymkeric substance that contains of claim 1 is used for production ultraviolet-coating material solidified application.
16. with the coating composition substrates coated that contains urethano group water-dilutable polymkeric substance that contains claim 1.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2002106565 DE10206565A1 (en) | 2002-02-18 | 2002-02-18 | Water-dilutable polyurethane with repeat units derived from 3,4-epoxy-1-butene, used as a binder in oxidatively-drying or UV-curable, aqueous coating materials |
| DE10206565.9 | 2002-02-18 | ||
| US10/368,194 | 2003-02-18 | ||
| US10/368,194 US6696531B1 (en) | 2003-02-18 | 2003-02-18 | Process for preparing a polymer from 3,4-epoxy-1-butene |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1646647A true CN1646647A (en) | 2005-07-27 |
| CN1293119C CN1293119C (en) | 2007-01-03 |
Family
ID=27735685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB03808208XA Expired - Fee Related CN1293119C (en) | 2002-02-18 | 2003-02-18 | Aqueous coating composition based on epoxybutene polyethers |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP1485438A1 (en) |
| JP (1) | JP2005517761A (en) |
| CN (1) | CN1293119C (en) |
| AU (1) | AU2003210298A1 (en) |
| CA (1) | CA2476476A1 (en) |
| HK (1) | HK1081216A1 (en) |
| WO (1) | WO2003068879A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102812062A (en) * | 2010-03-02 | 2012-12-05 | 拜耳知识产权有限责任公司 | Aqueous polyurethane dispersions |
| CN101405322B (en) * | 2006-03-31 | 2013-02-13 | 索尼德国有限责任公司 | A method of producing poly(ethylene oxide - alkylene oxide) copolymers |
| CN115028832A (en) * | 2022-04-12 | 2022-09-09 | 浙江科技学院 | Preparation method of water-based polyaspartic ester resin and water-based PAE polyurea coating |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006054237A1 (en) * | 2006-11-17 | 2008-05-21 | Bayer Materialscience Ag | Polyurethane-modified alkyd resin dispersions |
| EP2900723B1 (en) * | 2012-09-25 | 2019-06-19 | Battelle Memorial Institute | Aqueous prepolymer dispersions |
| WO2015191936A1 (en) | 2014-06-11 | 2015-12-17 | Battelle Memorial Institute | Alkoxylated bio-oil polyol compositions |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3991036A (en) * | 1973-02-28 | 1976-11-09 | Uniroyal Inc. | Preparation of polyurethane using 1,2,3,4,4a,5,7,7a-Octahydrothieno[3,4-b]py |
| CN87102902A (en) * | 1987-04-17 | 1988-10-26 | 水电部华东勘测设计院 | Hydrophilic polyurethanes coating and preparation method |
| BR0010264A (en) * | 1999-05-04 | 2002-02-13 | Eastman Chem Co | Oxidatively curable coating composition, polyether-alcohol, composition, and oxidatively curable film |
| DE19930961A1 (en) * | 1999-07-05 | 2001-01-11 | Bayer Ag | Polyurethane dispersions |
-
2003
- 2003-02-18 WO PCT/EP2003/001613 patent/WO2003068879A1/en active Application Filing
- 2003-02-18 CA CA002476476A patent/CA2476476A1/en not_active Abandoned
- 2003-02-18 CN CNB03808208XA patent/CN1293119C/en not_active Expired - Fee Related
- 2003-02-18 JP JP2003567995A patent/JP2005517761A/en active Pending
- 2003-02-18 AU AU2003210298A patent/AU2003210298A1/en not_active Abandoned
- 2003-02-18 EP EP03739501A patent/EP1485438A1/en not_active Withdrawn
-
2006
- 2006-01-24 HK HK06101075A patent/HK1081216A1/en not_active IP Right Cessation
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101405322B (en) * | 2006-03-31 | 2013-02-13 | 索尼德国有限责任公司 | A method of producing poly(ethylene oxide - alkylene oxide) copolymers |
| CN102812062A (en) * | 2010-03-02 | 2012-12-05 | 拜耳知识产权有限责任公司 | Aqueous polyurethane dispersions |
| CN102812062B (en) * | 2010-03-02 | 2015-09-30 | 拜耳知识产权有限责任公司 | Aqueous polyurethane dispersion |
| CN115028832A (en) * | 2022-04-12 | 2022-09-09 | 浙江科技学院 | Preparation method of water-based polyaspartic ester resin and water-based PAE polyurea coating |
| CN115028832B (en) * | 2022-04-12 | 2023-08-01 | 浙江科技学院 | Preparation method of water-based polyaspartic acid ester resin and water-based PAE polyurea coating |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1485438A1 (en) | 2004-12-15 |
| AU2003210298A1 (en) | 2003-09-04 |
| HK1081216A1 (en) | 2006-05-12 |
| CA2476476A1 (en) | 2003-08-21 |
| JP2005517761A (en) | 2005-06-16 |
| CN1293119C (en) | 2007-01-03 |
| WO2003068879A1 (en) | 2003-08-21 |
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