EP1451238A1 - 2-komponentenvernetzung von endfunktionalisierten polyacrylaten - Google Patents
2-komponentenvernetzung von endfunktionalisierten polyacrylatenInfo
- Publication number
- EP1451238A1 EP1451238A1 EP02791702A EP02791702A EP1451238A1 EP 1451238 A1 EP1451238 A1 EP 1451238A1 EP 02791702 A EP02791702 A EP 02791702A EP 02791702 A EP02791702 A EP 02791702A EP 1451238 A1 EP1451238 A1 EP 1451238A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- polyacrylates
- functional groups
- polymer
- polymerization
- functionalized
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 229920000058 polyacrylate Polymers 0.000 title claims abstract description 89
- 238000000034 method Methods 0.000 claims abstract description 92
- 125000000524 functional group Chemical group 0.000 claims abstract description 75
- 238000006243 chemical reaction Methods 0.000 claims abstract description 61
- 150000001875 compounds Chemical class 0.000 claims abstract description 45
- 230000008569 process Effects 0.000 claims description 48
- 239000004820 Pressure-sensitive adhesive Substances 0.000 claims description 23
- 238000004132 cross linking Methods 0.000 claims description 17
- 238000006467 substitution reaction Methods 0.000 claims description 8
- 238000007259 addition reaction Methods 0.000 claims description 3
- 229920000642 polymer Polymers 0.000 description 102
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 58
- 238000006116 polymerization reaction Methods 0.000 description 52
- -1 polysiloxanes Polymers 0.000 description 36
- 239000000203 mixture Substances 0.000 description 35
- 239000000178 monomer Substances 0.000 description 32
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 description 27
- 150000004820 halides Chemical class 0.000 description 27
- 239000000243 solution Substances 0.000 description 25
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 24
- 238000004519 manufacturing process Methods 0.000 description 24
- 150000003254 radicals Chemical class 0.000 description 24
- 238000001035 drying Methods 0.000 description 21
- 239000003999 initiator Substances 0.000 description 21
- 238000010526 radical polymerization reaction Methods 0.000 description 18
- 239000002904 solvent Substances 0.000 description 17
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 15
- 230000001070 adhesive effect Effects 0.000 description 15
- 125000004432 carbon atom Chemical group C* 0.000 description 15
- 230000035484 reaction time Effects 0.000 description 14
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 13
- 238000012360 testing method Methods 0.000 description 13
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 12
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 11
- AVXURJPOCDRRFD-UHFFFAOYSA-N Hydroxylamine Chemical class ON AVXURJPOCDRRFD-UHFFFAOYSA-N 0.000 description 11
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 11
- 238000005859 coupling reaction Methods 0.000 description 11
- 238000005227 gel permeation chromatography Methods 0.000 description 11
- 238000010998 test method Methods 0.000 description 11
- 239000012989 trithiocarbonate Substances 0.000 description 11
- 229920002799 BoPET Polymers 0.000 description 10
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 description 10
- 125000003118 aryl group Chemical group 0.000 description 10
- 239000000155 melt Substances 0.000 description 10
- 238000002156 mixing Methods 0.000 description 10
- HIZCIEIDIFGZSS-UHFFFAOYSA-L trithiocarbonate Chemical compound [S-]C([S-])=S HIZCIEIDIFGZSS-UHFFFAOYSA-L 0.000 description 10
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 9
- 238000004458 analytical method Methods 0.000 description 9
- 238000010539 anionic addition polymerization reaction Methods 0.000 description 9
- 238000000576 coating method Methods 0.000 description 9
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 9
- 239000004926 polymethyl methacrylate Substances 0.000 description 9
- 150000001252 acrylic acid derivatives Chemical class 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 8
- 239000012948 isocyanate Substances 0.000 description 8
- 229910052757 nitrogen Inorganic materials 0.000 description 8
- 230000008878 coupling Effects 0.000 description 7
- 238000010168 coupling process Methods 0.000 description 7
- 229910001873 dinitrogen Inorganic materials 0.000 description 7
- 230000009477 glass transition Effects 0.000 description 7
- 239000012943 hotmelt Substances 0.000 description 7
- 150000002513 isocyanates Chemical class 0.000 description 7
- 230000005855 radiation Effects 0.000 description 7
- 239000000126 substance Substances 0.000 description 7
- GOXQRTZXKQZDDN-UHFFFAOYSA-N 2-Ethylhexyl acrylate Chemical compound CCCCC(CC)COC(=O)C=C GOXQRTZXKQZDDN-UHFFFAOYSA-N 0.000 description 6
- QGJOPFRUJISHPQ-UHFFFAOYSA-N Carbon disulfide Chemical compound S=C=S QGJOPFRUJISHPQ-UHFFFAOYSA-N 0.000 description 6
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 6
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 6
- 125000005262 alkoxyamine group Chemical group 0.000 description 6
- 238000010560 atom transfer radical polymerization reaction Methods 0.000 description 6
- 229920000193 polymethacrylate Polymers 0.000 description 6
- 238000012545 processing Methods 0.000 description 6
- 238000003756 stirring Methods 0.000 description 6
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 6
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 description 6
- 239000000853 adhesive Substances 0.000 description 5
- 125000001931 aliphatic group Chemical group 0.000 description 5
- 230000008901 benefit Effects 0.000 description 5
- 229920001400 block copolymer Polymers 0.000 description 5
- 238000010276 construction Methods 0.000 description 5
- 150000002148 esters Chemical class 0.000 description 5
- 239000011521 glass Substances 0.000 description 5
- 229910052740 iodine Inorganic materials 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 150000003573 thiols Chemical class 0.000 description 5
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 4
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 4
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 4
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 4
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 4
- 125000003545 alkoxy group Chemical group 0.000 description 4
- 125000000217 alkyl group Chemical group 0.000 description 4
- 125000003277 amino group Chemical group 0.000 description 4
- 125000000751 azo group Chemical group [*]N=N[*] 0.000 description 4
- 125000002843 carboxylic acid group Chemical group 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 239000011630 iodine Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000003960 organic solvent Substances 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 230000009257 reactivity Effects 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 229920006395 saturated elastomer Polymers 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 3
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical class CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 3
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 description 3
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 3
- ABLZXFCXXLZCGV-UHFFFAOYSA-N Phosphorous acid Chemical group OP(O)=O ABLZXFCXXLZCGV-UHFFFAOYSA-N 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 239000001361 adipic acid Substances 0.000 description 3
- 235000011037 adipic acid Nutrition 0.000 description 3
- 150000001408 amides Chemical class 0.000 description 3
- 229910052794 bromium Inorganic materials 0.000 description 3
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 description 3
- 239000013522 chelant Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000000460 chlorine Substances 0.000 description 3
- 229910052801 chlorine Inorganic materials 0.000 description 3
- 238000013329 compounding Methods 0.000 description 3
- 125000004122 cyclic group Chemical group 0.000 description 3
- ISAOCJYIOMOJEB-UHFFFAOYSA-N desyl alcohol Natural products C=1C=CC=CC=1C(O)C(=O)C1=CC=CC=C1 ISAOCJYIOMOJEB-UHFFFAOYSA-N 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 238000010894 electron beam technology Methods 0.000 description 3
- 239000000839 emulsion Substances 0.000 description 3
- 238000009472 formulation Methods 0.000 description 3
- 125000005842 heteroatom Chemical group 0.000 description 3
- 229930195733 hydrocarbon Natural products 0.000 description 3
- 230000000977 initiatory effect Effects 0.000 description 3
- 239000000976 ink Substances 0.000 description 3
- 238000004898 kneading Methods 0.000 description 3
- 229920002521 macromolecule Polymers 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 150000002734 metacrylic acid derivatives Chemical class 0.000 description 3
- 230000006855 networking Effects 0.000 description 3
- 150000002894 organic compounds Chemical class 0.000 description 3
- 239000003973 paint Substances 0.000 description 3
- 229920000728 polyester Polymers 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- 229920002554 vinyl polymer Polymers 0.000 description 3
- 239000011592 zinc chloride Substances 0.000 description 3
- 235000005074 zinc chloride Nutrition 0.000 description 3
- MSMAPCFQRXQMRL-UHFFFAOYSA-N (2-oxo-1,2-diphenylethyl) prop-2-enoate Chemical compound C=1C=CC=CC=1C(OC(=O)C=C)C(=O)C1=CC=CC=C1 MSMAPCFQRXQMRL-UHFFFAOYSA-N 0.000 description 2
- FMCAFXHLMUOIGG-JTJHWIPRSA-N (2s)-2-[[(2r)-2-[[(2s)-2-[[(2r)-2-formamido-3-sulfanylpropanoyl]amino]-3-methylbutanoyl]amino]-3-(4-hydroxy-2,5-dimethylphenyl)propanoyl]amino]-4-methylsulfanylbutanoic acid Chemical compound O=CN[C@@H](CS)C(=O)N[C@@H](C(C)C)C(=O)N[C@@H](C(=O)N[C@@H](CCSC)C(O)=O)CC1=CC(C)=C(O)C=C1C FMCAFXHLMUOIGG-JTJHWIPRSA-N 0.000 description 2
- PSGCQDPCAWOCSH-UHFFFAOYSA-N (4,7,7-trimethyl-3-bicyclo[2.2.1]heptanyl) prop-2-enoate Chemical compound C1CC2(C)C(OC(=O)C=C)CC1C2(C)C PSGCQDPCAWOCSH-UHFFFAOYSA-N 0.000 description 2
- ARXKVVRQIIOZGF-UHFFFAOYSA-N 1,2,4-butanetriol Chemical compound OCCC(O)CO ARXKVVRQIIOZGF-UHFFFAOYSA-N 0.000 description 2
- NJXYTXADXSRFTJ-UHFFFAOYSA-N 1,2-Dimethoxy-4-vinylbenzene Chemical compound COC1=CC=C(C=C)C=C1OC NJXYTXADXSRFTJ-UHFFFAOYSA-N 0.000 description 2
- ACTKAGSPIFDCMF-UHFFFAOYSA-N 1,3-oxazol-2-amine Chemical compound NC1=NC=CO1 ACTKAGSPIFDCMF-UHFFFAOYSA-N 0.000 description 2
- XWJBRBSPAODJER-UHFFFAOYSA-N 1,7-octadiene Chemical compound C=CCCCCC=C XWJBRBSPAODJER-UHFFFAOYSA-N 0.000 description 2
- UZKWTJUDCOPSNM-UHFFFAOYSA-N 1-ethenoxybutane Chemical compound CCCCOC=C UZKWTJUDCOPSNM-UHFFFAOYSA-N 0.000 description 2
- KWVGIHKZDCUPEU-UHFFFAOYSA-N 2,2-dimethoxy-2-phenylacetophenone Chemical compound C=1C=CC=CC=1C(OC)(OC)C(=O)C1=CC=CC=C1 KWVGIHKZDCUPEU-UHFFFAOYSA-N 0.000 description 2
- DPBJAVGHACCNRL-UHFFFAOYSA-N 2-(dimethylamino)ethyl prop-2-enoate Chemical compound CN(C)CCOC(=O)C=C DPBJAVGHACCNRL-UHFFFAOYSA-N 0.000 description 2
- OMIGHNLMNHATMP-UHFFFAOYSA-N 2-hydroxyethyl prop-2-enoate Chemical compound OCCOC(=O)C=C OMIGHNLMNHATMP-UHFFFAOYSA-N 0.000 description 2
- XBIUWALDKXACEA-UHFFFAOYSA-N 3-[bis(2,4-dioxopentan-3-yl)alumanyl]pentane-2,4-dione Chemical compound CC(=O)C(C(C)=O)[Al](C(C(C)=O)C(C)=O)C(C(C)=O)C(C)=O XBIUWALDKXACEA-UHFFFAOYSA-N 0.000 description 2
- TXFPEBPIARQUIG-UHFFFAOYSA-N 4'-hydroxyacetophenone Chemical compound CC(=O)C1=CC=C(O)C=C1 TXFPEBPIARQUIG-UHFFFAOYSA-N 0.000 description 2
- KWOLFJPFCHCOCG-UHFFFAOYSA-N Acetophenone Chemical compound CC(=O)C1=CC=CC=C1 KWOLFJPFCHCOCG-UHFFFAOYSA-N 0.000 description 2
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 2
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- SOGAXMICEFXMKE-UHFFFAOYSA-N Butylmethacrylate Chemical compound CCCCOC(=O)C(C)=C SOGAXMICEFXMKE-UHFFFAOYSA-N 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 2
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 2
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 2
- MZRVEZGGRBJDDB-UHFFFAOYSA-N N-Butyllithium Chemical compound [Li]CCCC MZRVEZGGRBJDDB-UHFFFAOYSA-N 0.000 description 2
- CNCOEDDPFOAUMB-UHFFFAOYSA-N N-Methylolacrylamide Chemical compound OCNC(=O)C=C CNCOEDDPFOAUMB-UHFFFAOYSA-N 0.000 description 2
- GLUUGHFHXGJENI-UHFFFAOYSA-N Piperazine Chemical compound C1CNCCN1 GLUUGHFHXGJENI-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 244000028419 Styrax benzoin Species 0.000 description 2
- 235000000126 Styrax benzoin Nutrition 0.000 description 2
- 235000008411 Sumatra benzointree Nutrition 0.000 description 2
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- DTQVDTLACAAQTR-UHFFFAOYSA-N Trifluoroacetic acid Chemical compound OC(=O)C(F)(F)F DTQVDTLACAAQTR-UHFFFAOYSA-N 0.000 description 2
- QYKIQEUNHZKYBP-UHFFFAOYSA-N Vinyl ether Chemical compound C=COC=C QYKIQEUNHZKYBP-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 229920005700 acResin® Polymers 0.000 description 2
- 239000004840 adhesive resin Substances 0.000 description 2
- 229920006223 adhesive resin Polymers 0.000 description 2
- 150000004703 alkoxides Chemical class 0.000 description 2
- 125000000304 alkynyl group Chemical group 0.000 description 2
- XXROGKLTLUQVRX-UHFFFAOYSA-N allyl alcohol Chemical compound OCC=C XXROGKLTLUQVRX-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- 150000008064 anhydrides Chemical class 0.000 description 2
- 125000000129 anionic group Chemical group 0.000 description 2
- 229960002130 benzoin Drugs 0.000 description 2
- RWCCWEUUXYIKHB-UHFFFAOYSA-N benzophenone Chemical compound C=1C=CC=CC=1C(=O)C1=CC=CC=C1 RWCCWEUUXYIKHB-UHFFFAOYSA-N 0.000 description 2
- 239000012965 benzophenone Substances 0.000 description 2
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 2
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 2
- VHRGRCVQAFMJIZ-UHFFFAOYSA-N cadaverine Chemical compound NCCCCCN VHRGRCVQAFMJIZ-UHFFFAOYSA-N 0.000 description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- YCIMNLLNPGFGHC-UHFFFAOYSA-N catechol Chemical compound OC1=CC=CC=C1O YCIMNLLNPGFGHC-UHFFFAOYSA-N 0.000 description 2
- 229920006037 cross link polymer Polymers 0.000 description 2
- 125000004093 cyano group Chemical group *C#N 0.000 description 2
- 239000000412 dendrimer Substances 0.000 description 2
- 229920000736 dendritic polymer Polymers 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical group [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 2
- 238000004821 distillation Methods 0.000 description 2
- FJKIXWOMBXYWOQ-UHFFFAOYSA-N ethenoxyethane Chemical compound CCOC=C FJKIXWOMBXYWOQ-UHFFFAOYSA-N 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000007306 functionalization reaction Methods 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 235000019382 gum benzoic Nutrition 0.000 description 2
- 229910052736 halogen Inorganic materials 0.000 description 2
- 150000002367 halogens Chemical class 0.000 description 2
- 125000000623 heterocyclic group Chemical group 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- 150000002484 inorganic compounds Chemical class 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 description 2
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Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
- C09J175/04—Polyurethanes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F291/00—Macromolecular compounds obtained by polymerising monomers on to macromolecular compounds according to more than one of the groups C08F251/00 - C08F289/00
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F293/00—Macromolecular compounds obtained by polymerisation on to a macromolecule having groups capable of inducing the formation of new polymer chains bound exclusively at one or both ends of the starting macromolecule
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F293/00—Macromolecular compounds obtained by polymerisation on to a macromolecule having groups capable of inducing the formation of new polymer chains bound exclusively at one or both ends of the starting macromolecule
- C08F293/005—Macromolecular compounds obtained by polymerisation on to a macromolecule having groups capable of inducing the formation of new polymer chains bound exclusively at one or both ends of the starting macromolecule using free radical "living" or "controlled" polymerisation, e.g. using a complexing agent
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F8/00—Chemical modification by after-treatment
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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
- C08G18/40—High-molecular-weight compounds
- C08G18/62—Polymers of compounds having carbon-to-carbon double bonds
- C08G18/6216—Polymers of alpha-beta ethylenically unsaturated carboxylic acids or of derivatives thereof
- C08G18/6266—Polymers of amides or imides from alpha-beta ethylenically unsaturated carboxylic acids
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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
- C08G81/00—Macromolecular compounds obtained by interreacting polymers in the absence of monomers, e.g. block polymers
- C08G81/02—Macromolecular compounds obtained by interreacting polymers in the absence of monomers, e.g. block polymers at least one of the polymers being obtained by reactions involving only carbon-to-carbon unsaturated bonds
- C08G81/021—Block or graft polymers containing only sequences of polymers of C08C or C08F
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J133/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
- C09J133/04—Homopolymers or copolymers of esters
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J133/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
- C09J133/04—Homopolymers or copolymers of esters
- C09J133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C09J133/08—Homopolymers or copolymers of acrylic acid esters
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
- C09J2301/12—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers
- C09J2301/122—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers the adhesive layer being present only on one side of the carrier, e.g. single-sided adhesive tape
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S522/00—Synthetic resins or natural rubbers -- part of the class 520 series
- Y10S522/904—Monomer or polymer contains initiating group
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S522/00—Synthetic resins or natural rubbers -- part of the class 520 series
- Y10S522/904—Monomer or polymer contains initiating group
- Y10S522/905—Benzophenone group
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/28—Web or sheet containing structurally defined element or component and having an adhesive outermost layer
- Y10T428/2809—Web or sheet containing structurally defined element or component and having an adhesive outermost layer including irradiated or wave energy treated component
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/28—Web or sheet containing structurally defined element or component and having an adhesive outermost layer
- Y10T428/2813—Heat or solvent activated or sealable
- Y10T428/2817—Heat sealable
- Y10T428/2826—Synthetic resin or polymer
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/28—Web or sheet containing structurally defined element or component and having an adhesive outermost layer
- Y10T428/2852—Adhesive compositions
- Y10T428/2878—Adhesive compositions including addition polymer from unsaturated monomer
- Y10T428/2891—Adhesive compositions including addition polymer from unsaturated monomer including addition polymer from alpha-beta unsaturated carboxylic acid [e.g., acrylic acid, methacrylic acid, etc.] Or derivative thereof
Definitions
- the invention relates to a method for increasing the molecular weight of polyacrylates and their derivatives, in particular for crosslinking.
- a central problem is the length of the mesh sheet, since acrylic hotmelt PSAs are generally of low molecular weight, have a lower percentage of entanglements and therefore have to be crosslinked more. With stronger networking, the cohesion level, but the distance between the individual networking points is becoming ever smaller. The network is therefore significantly closer-meshed and the PSA has only low viscoelastic properties.
- No. 5,888,644 describes a process for the production of release lacquers.
- the starting point is multifunctional acrylates, which are implemented with polysiloxanes.
- no defined network is formed, so that this process cannot be applied to acrylic PSAs either.
- Polymers of this type are not very thermally stable, since iodides generally react with air and are easily oxidized to iodine. Consequence of this are severe discoloration. This applies in particular to hot melt processes with high temperatures.
- the object of the invention is to provide a process for building up the molecular weight of polyacrylates, in particular for their crosslinking, which does not have the disadvantages of the prior art or only has them to a reduced extent.
- the invention accordingly relates to a process for increasing the molecular weight of polyacrylates, polyacrylates which have been functionalized at least in part of their chain ends by suitable groups X being reacted with at least one compound which has at least two such functional groups Y which are able to enter into linkage reactions with the functional groups X.
- polyacrylates should also be understood to mean their derivatives and polymethacrylates and their derivatives, also referred to as component (a).
- the linking reactions are addition reactions.
- the linkage takes place via substitution reactions.
- substitution reactions transesterification and esterification reactions are particularly advantageous.
- the polyacrylates containing the functional groups X are invented with such a compound.
- implemented according to the invention which has at least two such functional groups Y, which are able to bind the polyacrylates using the functional groups Y.
- Such bond formations are, for example, the complex bonding of the polyacrylates to two coordination centers; in this sense, functional centers should also be understood as functional groups.
- the respective functional groups X and Y are located at the respective compounds at their chain ends and are therefore also referred to below as functional end groups.
- the compounds containing functional groups Y are also referred to below as linking compounds and as component (b).
- the polyacrylates functionalized with the groups X very advantageously have an average molecular weight (number average) M n in the range from 2,000 g / mol to 1,000,000 g / mol.
- the method is hereby particularly suitable for the construction or crosslinking of polyacrylate PSAs.
- Increasing the molecular weight in the sense of the method according to the invention is understood to mean, in particular, crosslinking, but furthermore also the construction of higher molecular (long-chain) molecules.
- the method thus allows the construction of higher molecular weight compounds from the low molecular weight components, with the components (that is to say the polyacrylates having the functional groups X and the linking compounds having the functional groups Y) being linked linearly to one another in a variant which is particularly preferred for the process according to the invention.
- higher molecular alternating block copolymers can be built up from the low molecular components, particularly advantageously in such a way that the blocks each correspond to one of the building blocks. Compounds that are already available as block copolymers can also be linked.
- Another particularly preferred variant of the method according to the invention comprises the construction of crosslinked structures from the polyacrylates and the linking compounds.
- at least one of the two components polyacrylates and / or linking compounds
- the polyacrylates which have the functional groups X and / or those which have the functional groups Y are linking compounds have at least one, possibly preferably several chain branches, so that more than two chain ends are present. Further advantageously, at least one of the two components then has three or more functional groups Y.
- the network density can be further increased if both components carry at least three or more terminal functional groups. With increasing functionality, the tendency to form networks also increases. This also applies if the number of functionalities increases only from one of the components.
- di-, tri- and / or multifunctional polyacrylates can be mixed with di-, tri- and / or multifunctional linking compounds and reacted.
- the mixing ratio of the polyacrylates and the linking compounds can be chosen freely, depending on the property of the linked polymer to be achieved.
- the amount of functional groups X advantageously corresponds essentially to that of functional groups Y.
- the molar ratio n ⁇ / n x of the number n ⁇ of the functional groups Y of the linking compound to the number n x of the functional groups X of the polyacrylates is in each case preferably in a size range between 0.8 and 1.2, very preferably between 0. 8 and 1.
- linear polyacrylates each with a terminal functional group X at the chain ends
- branched, dendritic or star-shaped polyacrylates are used in the inventive method. These polymers also have at least two functional end groups X.
- the number of terminal functional groups X corresponds to the number of chain or side chain ends or the arms of a star polymer.
- each linear, branched, dendritic or star-shaped poly (meth) acrylate can also carry several end groups X at the respective chain end.
- At least 50% by weight of acrylic acid and / or methacrylic acid derivatives of the general structure are used as polyacrylates
- the end-functionalized polyacrylates have a static glass transition temperature of - 100 ° C to + 25 ° C.
- the static glass transition temperature it is further advantageous to raise the static glass transition temperature further (preferably up to + 175 ° C).
- the monomers are chosen such that the resulting polymers can be used as pressure-sensitive adhesives at room temperature or higher temperatures, in particular in such a way that the resulting polymers have pressure-sensitive adhesive properties in accordance with the "Handbook of Pressure Sensitive Adhesive Technology" by Donatas Satas ( van Nostrand, New York 1989)
- T G of the polymers T G 25 25 ° C.
- the monomers are very preferably selected in accordance with what has been said above and the quantitative composition of the monomer mixture is advantageously chosen such that the Fox equation (G1) (cf. TG Fox, Bull. Am. Phys. Soc. 1 (1956) 123) gives the desired T G value for the polymer.
- n represents the running number of the monomers used
- w n the mass fraction of the respective monomer n (% by weight)
- T G n the respective glass transition temperature of the homopolymer from the respective monomers n in K.
- Acrylic and methacrylic acid esters with alkyl groups consisting of 4 to 14 carbon atoms, preferably 4 to 9 carbon atoms, are preferably used.
- Specific examples, without wishing to be restricted by this list, are methacrylate, methyl methacrylate, ethyl acrylate, n-butyl acrylate, n-butyl methacrylate, n-pentyl acrylate, n-hexyl acrylate, n-heptyl acrylate, n-octyl acrylate, n-octyl methacrylate, n -Nonylacrylat, laurylacrylate, stearyl acrylate, behenyl acrylate, and their branched isomers, such as Isobutyl acrylate, 2-ethylhexyl acrylate, 2-ethylhexyl methacrylate, isooctyl acrylate, isoocty
- cycloalkyl alcohols consisting of at least 6 carbon atoms.
- the cycloalkyl alcohols can also be substituted, e.g. by C1-6 alkyl, halogen or cyano.
- Specific examples are cyclohexyl methacrylate, isobornyl acrylate, isobornyl methacrylate and 3,5-dimethyladamantylacrylate.
- vinyl compounds which contain functional groups which negatively influence the coupling or crosslinking reaction of the functional groups X and Y with one another are dispensed with.
- vinyl monomers from the following groups can optionally be used as monomers within the meaning of the definition: vinyl esters, vinyl ethers, vinyl halides, vinyl idene halides, and also vinyl compounds which contain aromatic cycles and heterocycles in the ⁇ -position.
- selected monomers which can be used according to the invention may be mentioned by way of example: vinyl acetate, vinylformamide, vinylpyridine, ethyl vinyl ether, 2-ethylhexyl vinyl ether, butyl vinyl ether, vinyl chloride, vinylidene chloride, acrylonitrile.
- Monomers are advantageously used, the polar groups such as carboxyl, sulfonic and phosphonic acid, hydroxy, lactam and lactone, N-substituted amide, N-substituted amine, carbamate, epoxy, thiol, ether, alkoxy. Wear cyan or the like.
- Moderate basic monomers are e.g. N, N-dialkyl substituted amides such as e.g. N, N-
- Photoinitiators with a copolymerizable double bond are also advantageously used.
- Norrish I and II photoinitiators are suitable as photoinitiators.
- Examples are benzoin acrylate and an acrylated benzophenone from UCB (Ebecryl P 36 ® ).
- all photoinitiators known to the person skilled in the art can be copolymerized, which can crosslink the polymer via a radical mechanism under UV radiation.
- An overview of possible photoinitiators that can be functionalized with a double bond is given in Fouassier: “Photoinititation, Photopolymerization and Photocuring: Fundamentals and Applications", Hanser-Verlag, Kunststoff 1995.
- Carroy et al. In “ Chemistry and Technology of UV and EB Formulation for Coatings, Inks and Paints ", Oldring (ed.), 1994, SITA, London.
- Aromatic vinyl compounds such as styrene are suitable here, the aromatic nuclei preferably consisting of C 4 to C 13 building blocks and also containing heteroatoms.
- Particularly preferred examples are 4-vinylpyridine, N-vinylphthalimide, methylstyrene, 3,4-dimethoxystyrene, 4-vinylbenzoic acid, benzyl acrylate, benzyl methacrylate, phenyl acrylate, phenyl methacrylate, t-butylphenyl acrylate, t-butylphenyl methacrylate, 4-biphenyl 2-acrylate and methacrylate Naphthyl acrylate and methacrylate and mixtures of those monomers.
- One or more functional groups can advantageously be incorporated, which allow radiation-chemical crosslinking of the polymers, in particular by means of UV irradiation or by irradiation with fast electrons.
- acrylic esters which have an unsaturated one can be used as monomer units Contain alkyl radical with 3 to 18 carbon atoms, which contains at least one carbon-carbon double bond.
- allyl acrylate and acrylated cinnamic acid esters are particularly advantageous.
- vinyl compounds with double bonds which are not reactive during the (radical) polymerization can also be used very advantageously as monomers for the polymer block.
- Particularly preferred examples of corresponding comonomers are isoprene and / or butadiene, but also chloroprene.
- the polyacrylates contain one or more grafted-on side chains.
- Such systems can be obtained both by a graft-from (polymerisation of a side chain starting from an existing polymer backbone) and by a gra / ⁇ -to process (connection of polymer chains to a polymer backbone via polymer-analogous reactions).
- monomers which are functionalized in this way can be used as monomers, which enable a graft-from process for grafting on side chains.
- a preferred characteristic of the end-functionalized polyacrylates is that their molecular weight M n is between approximately 2,000 and approximately 1,000,000 g / mol, preferably between 30,000 and 400,000 g / mol, particularly preferably between 50,000 g / mol and 300,000 g / mol.
- the polydispersity of the polymer given by the quotient of mass average M w and number average M n of the molar mass distribution, is preferably less than 3.
- the reactivity of low molecular weight end-functionalized polyacrylates is higher, so that they are preferably used for the reaction.
- all controlled or living polymerizations can be used to produce the end-functionalized polyacrylates, as can combinations of different controlled polymerization processes.
- the ATRP, GTRP Group Transfer Radical Polymerization
- the nitroxide / TEMPO-controlled polymerization or more preferably the RAFT process allow the polymer architecture and also introduce a functional group in the polyacrylate.
- conventional free radical polymerizations are also conceivable if the initiator carries at least one functional group and this remains in the polymer even after the initiation.
- Different technologies can be used to produce the end-functionalized polyacrylates.
- the polymers can also be prepared in emulsion or bead polymerization, solvent polymerizations, pressure polymerizations or bulk polymerizations.
- Radical polymerizations can be carried out in the presence of an organic solvent or in the presence of water or in mixtures of organic solvents and / or organic solvents with water or in bulk. As little solvent as possible is preferably used. Depending on conversion and temperature, the polymerization time for radical processes is typically between 2 and 72 hours.
- esters of saturated carboxylic acids such as ethyl acetate
- aliphatic hydrocarbons such as n-hexane, n-heptane or cyclohexane
- ketones such as acetone or methyl ethyl ketone
- benzene aromatic solvents such as toluene or xylene or mixtures
- solvents aforementioned solvent used emulsifiers and stabilizers are preferably added for the polymerization.
- Conventional radical-forming compounds such as peroxides, azo compounds and peroxosulfates are advantageously used as polymerization initiators for the controlled radical polymerizations. Mixtures of initiators are also ideal.
- Nitroxide-controlled polymerization processes can be used to synthesize the polyacrylates.
- Difunctional initiators are preferably used for the preferred difunctional polyacrylates.
- An example of this are difunctional alkoxyamines (I).
- R 1 *, R 2 *, R 3 *, R 4 * can be different, identical or chemically linked and the pairs R 1 * and R 2 * as well as R 3 * and R 4 * each contain at least one group X or have a functional group that can be converted into X by a chemical reaction.
- R 1 * to R 4 * are preferably selected independently of one another as: i) halides, such as chlorine, bromine or iodine ii) linear, branched, cyclic and heterocyclic hydrocarbons with 1 to 20
- Carbon atoms which can be saturated, unsaturated or aromatic, iii) esters -COOR 5 *, alkoxides -OR 6 * and / or phosphonates -PO (OR 7 *) 2) where R 5 *, R 6 * and R 7 * for Radicals from group ii) are present, iv) radicals from ii) where in addition at least one hydroxyl function or
- Silyl ether function is included.
- alkoxyamines can also be used to prepare the end-functionalized polyacrylates by nitroxide-controlled polymerization.
- the middle block which forms two radicals after initiation by heat, heat radiation or actinic radiation, can be further modified or varied.
- Various chemical structures are known to the person skilled in the art. The prerequisite is that at least 2 radicals are formed which are stabilized by nitroxides which carry at least one functional group X or contain a group which is converted into X by a chemical reaction.
- nitroxides of type (II) or (III) are used in a favorable procedure:
- R 1 # , R 2 # , R 3 # , R 4 , R 5 # , R 6 # , R 7 , R 8 independently denote the following compounds or atoms and preferably at least one of the radicals R 1 # to R 6 # or R 7 # and / or R 8 # carry at least one group X or contain a group which can be converted into the desired group X by a chemical reaction.
- R 1 # to R 8 # are preferably selected independently of one another as: i) halides, such as chlorine, bromine or iodine ii) linear, branched, cyclic and heterocyclic hydrocarbons with 1 to 20 carbon atoms, which can be saturated, unsaturated or aromatic, iii) esters -COOR 9 # , alkoxides -OR 10 # and / or phosphonates -PO (OR 11 ) 2 , where R 9 # , R 10 # and R 11 # represent residues from group ii), iv) residues from of group ii), at least one hydroxy function or silyl ether function being additionally contained.
- halides such as chlorine, bromine or iodine
- No. 4,581,429 A discloses a controlled radical polymerization process which uses an initiator of a compound of the formula R'R "NOY, in which Y is a free radical species which can polymerize unsaturated monomers.
- WO 98/13392 A1 describes open-chain alk- oxyamine compounds which have a symmetrical substitution pattern
- EP 735 052 A1 discloses a process for the production of thermoplastic elastomers with narrow molar mass distributions
- WO 96/24620 A1 describes a polymerization process in which very special radical compounds such as phosphorus-containing nitroxides based on imidazolidine are used
- WO 98/44008 A1 discloses special nitroxyls based on morpholines, piperazinones and piperazine dions DE 199 49 352 A1 describes heterocyclic alkoxyamines as regulators in controlled free-radical polymerizations.
- ATRP atom transfer radical polymerization
- block copolymers preferably mono- or difunctional secondary or tertiary halides as initiators and for the abstraction of the (r) halide (s) Cu, Ni -, Fe, Pd, Pt, Ru, Os, Rh, Co, Ir, Ag or Au complexes
- s atom transfer radical polymerization
- the different possibilities of the ATRP are also described in the documents US 5,945,491 A, US 5,854,364 A and US 5,789,487 A.
- the corresponding secondary or tertiary halide should already have the desired functional group X. Furthermore, the polymerization process leaves halides in the polymer as end groups, which can likewise be converted into the corresponding functional groups X by substitution reactions.
- the manufacture of multiblock or star-shaped structures can be carried out according to the concept described in Macromolecules 1999, 32, 231-234. There, multifunctional halides are used for the polymerization, which then have to be converted in a substitution reaction in a polymer-analogous manner to the desired functional group (s) X.
- Inert solvents are preferably used as the reaction medium, e.g. aliphatic and cycloaliphatic hydrocarbons, or also aromatic hydrocarbons.
- the living polymer is generally represented by the structure P (A) -Me, where Me is a Group I metal, such as lithium, sodium or potassium, and P L (A) is a growing polymer block from the monomers A.
- Me is a Group I metal, such as lithium, sodium or potassium
- P L (A) is a growing polymer block from the monomers A.
- the molar mass of the The end group-modified poly (meth) acrylate to be produced is predetermined by the ratio of the initiator concentration to the monomer concentration. To build up the polymer, preference is given to using acrylate and methacrylate monomers which do not negatively influence the anionic course of the polymerization or can even be broken off completely.
- n-propyllithium, n-butyllithium, sec-butyllithium, 2-naphthyllithium, cyclohexyllithium or octyllithium this list does not claim to be complete.
- Initiators based on samarium complexes for the polymerization of acrylates are also known (Macromolecules, 1995, 28, 7886) and can be used here. With these initiators, however, it should be noted that only mono-end group-functional polyacrylates are accessible in this way by interrupting the corresponding anionic polymerization. For the production of carboxy groups this can be done, for example, by CO 2 with subsequent hydrolysis, for the production of hydroxyl groups, for example, by reaction with ethylene oxide and subsequent hydrolysis.
- difunctional initiators can also be used, such as, for example, 1, 1, 4,4-tetraphenyl-1, 4-dilit iobutane or 1, 1, 4,4-tetraphenyl-1, 4-dilithioisobutane.
- coinitiators can also be used. Suitable coinitiators include lithium halides, alkali metal alkoxides or alkyl aluminum compounds. In a very preferred version, the ligands and coinitiators are chosen so that acrylate monomers, e.g.
- N-butyl acrylate and 2-ethylhexyl acrylate can be polymerized directly and do not have to be generated in the polymer by transesterification with the corresponding alcohol.
- these anionic polymerizations are terminated in such a way that at least one functional group is generated at the chain end.
- hydroxyl groups are trapped with ethylene oxide and then hydrolyzed.
- difunctional initiators can be used for the production of end-functionalized polyacrylates by anionic polymerization, which initiators already contain at least one functional group in the polymer and this does not hinder the anionic polymerization process.
- at least one end-functional group on the poly (meth) acrylate can also be released by a polymer-analogous reaction.
- a variant of RAFT polymerization (reversible addition-fragmentation chain transfer polymerization) is carried out as a very preferred manufacturing process.
- the Polymerization process is e.g. B. in the writings WO 98/01478 A1 and WO 99/31144 A1 described in detail.
- Trithiocarbonates of the general structure R '"- SC (S) -S-R'" (Macromolecules 2000, 33, 243-245), by means of which one or more monomers (acrylates / methacrylates) are suitable, are particularly advantageous for the preparation of end-functionalized polyacrylates ) are polymerized and parts of the regulator remain as end groups in the polymer.
- the trithiocarbonate can consist of a compound in which R '"contains a functional group X or a functional group which can be converted into a functional group X by a chemical reaction.
- R '"contains a functional group X or a functional group which can be converted into a functional group X by a chemical reaction can be expedient to carry out a two-stage polymerization
- monomers are polymerized with a trithiocarbonate, which contain at least one functional group X and then polymerize the (meth) acrylates in a second step.
- the polymerization can take place continuously or with termination after the 1st stage and subsequent reinitiation.
- the latter method is particularly suitable for the production of end-functionalized polyacrylates with several functional groups X at each end.
- the trithiocarbonates (IV) and (V) are used for the polymerization, where ⁇ is a phenyl ring which functionalizes or is functionalized by alkyl or aryl substituents which are linked directly or via ester or ether bridges can be, or can be a cyano group.
- Functionalizations can be, for example, halogens, hydroxyl groups, epoxy groups, nitrogen or sulfur-containing groups, without this list claiming to be complete. Some of these groups can in turn be used as functional group X.
- end-functionalized polyacrylates with few or only one group X it may be advantageous to use end-functionalized trithiocarbonates.
- end-functionalized trithiocarbonates e.g. Trithiocarbonate types VIII and IX used.
- Group X should not affect the controlled radical polymerization.
- the group K is very variable, in order to improve the control of the polymerization or to change the rate of polymerization, can be C to C 8 alkyl, C 2 to C 18 alkenyl, C 2 to C 18 alkynyl, in each case linear or branched; Aryl, phenyl, benzyl, aliphatic and aromatic heterocycles.
- K as one or more groups -NH 2 , -NH-R I , -NR VI R V ", -NH-C (O) -R vl , -NR vl -C (O) -R v ", - NH-C (S) -R VI ,
- R v ⁇ and R v in turn compounds of the type C to C 18 alkyl, C 2 - to C 18 alkylene, C 2 - to C 18 alkynyl, each linear or branched; aryl, phenyl, benzyl , can be aliphatic and aromatic heterocycles and are independent of one another or the same.
- regulators can also be used which carry functionalized dithioester groups at the end and incorporate them at the polymer end.
- controllers of this type can have the structure XII.
- the functional group should not influence the polymerization process, but should remain on the sulfur atoms so that this group is incorporated at the end of the polymer chain.
- the dibenzylic group can be further modified and adapted in order to further improve the polymerization behavior.
- the patents WO 98/01478 A1 and WO 99/31 144 A1 are only mentioned here by way of example.
- initiator systems which additionally contain further radical initiators for the polymerization, in particular thermally decomposing radical-forming azo or peroxo initiators.
- radical initiators for the polymerization
- thermally decomposing radical-forming azo or peroxo initiators in principle, however, all customary initiators known for acrylates are suitable for this.
- C-centered radicals is described in Houben-Weyl, Methods of Organic Chemistry, Vol. E19a, p. 60ff. These methods are used in a preferred manner.
- radical sources are peroxides, hydroperoxides and azo compounds.
- radical initiators include: potassium peroxodisulfate, dibenzoyl peroxide, cumene hydroperoxide, cyclohexanone peroxide, cyclohexylsulfonylacetyl peroxide, di-tert- butyl peroxide, azodiisobutyronitrile, diisopropyl percarbonate, tert-butyl peroctoate, benzpinol.
- the radical initiator is 1, 1 'azo-bis (cyclo hexylnitrile) (Vazo ® 88, DuPont ®) or 2,2-azobis (2-methylbutanenitrile) (Vazo ® 67, DuPont ® ) used.
- radical sources can also be used which only release radicals under UV radiation.
- polymerization is usually carried out only to a low degree (WO 98/01478 A1) in order to achieve the narrowest possible molecular weight distributions. Due to the low sales, these polymers cannot be used as pressure-sensitive adhesives and, in particular, not as hot-melt pressure-sensitive adhesives, since the high proportion of residual monomers negatively influences the adhesive properties, the residual monomers contaminate the recycled solvent in the concentration process, and the corresponding self-adhesive tapes would show very high outgassing behavior , In order to avoid this disadvantage of low sales, the polymerization is initiated several times in a particularly preferred embodiment.
- the polymerization processes described above can also be used to produce multi-arm, star-shaped or dendritic end-functionalized polyacrylates. By modifying the initiating connection or the controller, such connections are easily accessible.
- the following structures show examples of suitable compounds, wherein the compound XIII is a suitable substance for the preparation of a 12-arm polyacrylate via ATRP technology, the compound XIV is for the production of a 6-arm polyacrylate via RAFT technology and the compound XV for the production of a 3- poor polyacrylates via a nitroxide-controlled reaction.
- Polyacrylates made from compound XIII can e.g. by conversion (substitution reaction) of the terminal bromides into suitable end group-functionalized polyacrylates.
- Polyacrylates made from compound XIV already have a functional group X as the end group per polymer arm. However, the regulator XIV can also carry this functional group at a different position on the terminal phenyl rings or else several functional groups on the terminal phenyl rings.
- Polyacrylates made from compound XV already have 3-hydroxy groups as the terminal functional group per polymer arm, which can be used for the reaction.
- the number of arms generated can be controlled by the number of groups functional for the controlled radical polymerization.
- the functional groups can also be exchanged, modified or specifically substituted. This measure can be used, for example, to increase or decrease the control or the rate of polymerization.
- all of the above-mentioned polymerization methods are only exemplary methods for the preparation of end-functionalized polyacrylates. However, it is also possible to use all methods known to the person skilled in the art for controlled polymerisation. As long as functional groups can be introduced onto the polymer using this polymerization method, functionalization at the poly (meth) acrylate chain end is particularly preferred.
- radical polymerization methods are also suitable for introducing functional groups.
- functional groups can be introduced into the polymer as end groups by the initiator.
- the initiator There are e.g. commercial azo initiators which carry free carboxylic acid groups or hydroxyl groups, which are then also incorporated into the polymer via the polymerization and can be used for the coupling or crosslinking reaction. Another possibility would be to intercept the free radical polymerization and to incorporate a functional group X in this way.
- Component (b) is used to link the end-functionalized polyacrylates.
- these linking compounds have different properties.
- it is preferred that the linking compounds have at least two terminal functional groups Y for reaction with the polyacrylates (component (a)) and that these functional groups Y undergo a chemical reaction with the functional group X of component (a).
- Inorganic or organometallic compounds are used very preferably, for example to build up high-molecular networks of component (a) by means of complexations.
- these can be metal salts which are reacted with polyacrylates end-functionalized with carboxylic acid groups.
- Suitable metal salts are, for example, alkali metal halides or alkaline earth metal halides. It is for the inventive see process of advantage if these salts are soluble in polyacrylate (component (a)).
- Some examples are LiBr, LiCI, KBr, Kl, magnesium bromide or calcium bromide. It is also possible to use transition metal halides, such as zinc chloride or zinc bromide.
- Metal chelate complexes such as aluminum acetylacetonate, titanium acetylacetonate, titanium tetraisopropylate, titanium tetrabutylate, zirconium acetylacetonate and iron acetylacetonate are also suitable for coordinating end group carboxylic acid groups. These reactions preferably take place in a range above 100 ° C. Reversible reactions can be of great advantage for further processing from the melt, ie the metal salts have only weak coordinative interactions at high temperatures and form strong ionic or coordinative bonds when cooled to room temperature or application temperature. This measure allows components (a) and (b) to be mixed easily in the melt and, for example, for applications as PSAs after coating from the melt, form highly viscous and shear-resistant PSAs with cooling to the carrier.
- component (b) is only activated after the mixing process.
- organic compounds with at least one carbon atom and two functional groups Y are used for the process according to the invention.
- Some examples of compounds with a C atom mentioned are malonic acid, malononitrile and methylenediamine.
- Examples of linking compounds with 2 carbon atoms and 2 functional groups Y are ethylene glycol and succinic acid.
- Examples of linking compounds with 3 carbon atoms for component (b) are glycerol, 1, 3-propanediol, glutaric acid and 1, 3-diaminopropane.
- Examples of compounds with 4 carbon atoms are 1, 4-butanediol, adipic acid, 1, 2,4-butanetriol, butene-1, 4-diol, 1, 2,3,4-butanetetracarboxylic acid, 1, 7-octadiene , Diethylenetriamine and dimethyl adipate.
- Examples of compounds with 5 carbon atoms are 1, 1, 1-tris (hydroxymethyl) ethane, 1, 5-pentanediol and 1, 5-diamino-pentane.
- compounds with up to 30 carbon atoms can advantageously be used, which can be aliphatic or aromatic, can have heterocycles and other cyclic structures which can contain unsaturated sites, and / or the following heteroatoms N, B, O, F, Cl , Br, I, Si, AI, P, or S can contain.
- the specified heteroatoms can also be present in connection with one another, for example in the form of a phosphate group, a sulfonate group or a nitro or nitroso group.
- the combination with each other is also possible, e.g. B. in the form of peroxo bonds, dithio bonds and diazo bonds.
- blocked isocyanates can also preferably be used for the thermal activation.
- the compounds have the advantage that they can be thermally activated for the reaction by means of energy (heat).
- oligomers In addition to the low molecular weight organic compounds, higher molecular compounds (oligomers) or polymers can also be used as linking compounds.
- oligomers and polymers e.g. Polyacrylates, polymethacrylates, polyisobutene, polyethylene, polypropylene, polyvinyl acetate, polyurethane, polyvinyl chloride, polystyrene, polycaprolactam, polycaprolactone, polyester, polybenzoates, polysiloxanes, polyethylene / propylene copolymers, polybutadiene, polyisoprene, polybutene, polythiophene, polyane carbonate, polyacyl amide, polyacyl amide , Polyvinyl alcohol, polypropylene oxide, polyethylene oxide, polyphenylene, polychloroprene and flourinated oligomers and polymers. All of these oligomers and polymers should have at least two functional end groups Y for the linking reaction.
- the polyacrylates (component (a)) and the linking compounds (component (b)) for the linking reaction are mixed in a reactor with a mixing device.
- the coupling reaction can be carried out in solution or in pure substance. End group-functionalized polyacrylates can thus be reacted in solution, the solvent used for the polymerization preferably being used here, or from the melt.
- component (a) is made from solution - the solvent is removed from the polymer. In the simplest case, this can be done by applying a vacuum or generally by distilling off.
- concentration extruders which are operated with low shear, are suitable for the concentration in order to avoid gelling during the hotmelt process.
- the solvent is therefore preferably drawn off in a concentration extruder under reduced pressure, for which purpose, for example, single or twin screw extruders can be used, which preferably distill off the solvent in different or the same vacuum stages and have feed preheating.
- component (a) is preferably concentrated to greater than 99.5%.
- Different reactors can be used to carry out the linking reaction. The initial viscosity of the individual components and the viscosity after the coupling reaction are of particular importance here. Extruders and / or kneaders are particularly preferred for carrying out in a highly viscous medium.
- Mixing units can also be twin-screw extruders or ring extruders.
- the components (compounding) and the treatment (reaction) are combined in the same reactor, advantageously in an extruder.
- This can also be the extruder in which the concentration step has already been carried out.
- a twin screw extruder e.g. Werner & Pfleiderer or Welding Engineers
- a co-kneader e.g. Buss
- the optimum reaction conditions are set in these reactors by process length, throughput (speed), kneading temperature and amount of any catalysts used.
- the residence time in the reactor can be optimized by good mixing of the reaction components.
- the reaction proceeds at elevated temperatures depending on the flow viscosity of the components used.
- the temperatures are chosen between 80 and 200 ° C for highly viscous systems, in a particularly preferred range between 110 and 160 ° C.
- the process according to the invention it can also be advantageous to vary the molecular weight of the components - in particular of the end-functionalized polyacrylate - in order to improve the processability in the melt.
- the flow viscosity can be reduced and thus the reaction increase willingness to exercise.
- Another point is the processability under shear in the extruder, since low-viscosity and low-molecular-weight polymers are easier to process in the extruder and the shear introduced is thus greatly reduced.
- the inventive method it is of no advantage for the inventive method to choose a continuous process sequence and / or to operate individual steps thereof in the in-line process. However, batch processing is also possible.
- reactors are generally used for coupling from solution or from very low-viscosity components.
- Mixing heads as they are known from 2-component polyurethane technology.
- the two components are brought together in one chamber, with the flow or pressure causing the two components to mix very quickly and efficiently.
- the reaction begins in the mixing chamber and can also continue in the subsequent processing process.
- stirred kettles which can be provided with different stirrers for mixing.
- stirrer e.g. Use anchor stirrers, propeller stirrers or MIG stirrers, with the viscosity again being a decisive factor.
- all mixing devices familiar to the person skilled in the art are suitable.
- the mixing devices can be heated and thus thermal energy can be introduced which enables or accelerates the linking reaction.
- the energy requirement depends on several factors, such as the activation energy of the chemical reaction and the molecular weight of the individual components.
- the reaction time represents a further process-specific parameter.
- the reaction time also varies depending on the reactivity of the individual components, the temperature control and the viscosity. Accordingly, the response time can typically be e.g. can be shortened by increasing the temperature.
- components (a) and (b) are only mixed and reacted at a later point in the process.
- One example is the processing of components (a) and (b) in an injection molding process, after which the hardening then takes place and the shape is retained.
- the conversion of the linking reactions proceeds as quantitatively as possible. Still, the reactivity, in particular when linking high molecular components, often less, so that only significantly lower sales can be realized. Rather, in some cases there is the possibility of side reactions.
- at least one linking reaction between a functional group X and Y should take place successfully.
- a higher conversion of greater than 50% is achieved. In a particularly preferred embodiment, sales of greater than 75% are achieved based on the reactive groups.
- Suitable adhesive resins include, inter alia, rosin and rosin derivatives (rosin esters, rosin derivatives also stabilized by, for example, disproportionation or hydrogenation), polyterpene resins, terpene-phenol resins, alkylphenol resins, aliphatic, aromatic and aliphatic-aromatic hydrocarbon resins, to name just a few.
- the preferred resins are those which are preferably compatible with component (a).
- the weight fraction of the resins is typically up to 40% by weight, more preferably up to 30% by weight.
- plasticizers plasticizers
- fillers e.g. fibers, carbon black, zinc oxide, titanium dioxide, chalk, solid or hollow glass spheres, microspheres made of other materials, silica, silicates
- nucleating agents e.g. fibers, carbon black, zinc oxide, titanium dioxide, chalk, solid or hollow glass spheres, microspheres made of other materials, silica, silicates
- nucleating agents e.g. fibers, carbon black, zinc oxide, titanium dioxide, chalk, solid or hollow glass spheres, microspheres made of other materials, silica, silicates
- nucleating agents e.g. fibers, carbon black, zinc oxide, titanium dioxide, chalk, solid or hollow glass spheres, microspheres made of other materials, silica, silicates
- nucleating agents e.g. fibers, carbon black, zinc oxide, titanium dioxide, chalk, solid or hollow glass spheres
- Components (a) and (b) crosslink the polymer produced again with actinic radiation.
- Additional crosslinks are generally particularly useful if the polymers produced by the above-mentioned processes have been linearly linked.
- component (a) and / or (b) are optionally added to UV-absorbing photoinitiators before or after the linking reaction.
- Useful photoinitiators that are very easy to use are benzoin ethers, such as. As benzoin methyl ether and benzoin isopropyl ether, substituted acetophenones, such as. B.
- 2,2-diethoxyacetophenone (available as Irgacure 651 ® from Ciba Geigy ® ), 2,2-dimethoxy-2-phenyl-1-phenylethanone, dimethoxyhydroxyacetophenone, substituted ⁇ -ketols, such as, for. B. 2-methoxy-2-hydroxypropiophenone, aromatic sulfonyl chlorides, such as. B. 2-naphthyl sulfonyl chloride, and photoactive oximes such. B. 1-phenyl-1,2-propanedione-2- (O-ethoxycarbonyl) oxime.
- the above-mentioned and other usable photoinitiators can contain the following radicals: benzophenone, acetophenone, benzil, benzoin, hydroxyalkylphenone, phenylcyclohexyl ketone, anthraquinone, trimethylbenzoylphosphine oxide, methylthi-phenylphenyl -, Aminoketone, azobenzoin, thioxanthone, hexarylbisimidazole, triazine, or fluorenone, each of these radicals being additionally substituted with one or more halogen atoms and / or one or more alkyloxy groups and / or one or more amino groups or hydroxy groups can.
- Typical radiation devices that can be used are linear cathode systems, scanner systems or segment cathode systems if they are electron beam accelerators.
- the typical acceleration voltages are in the range between 50 kV and 500 kV, preferably 80 kV and 300 kV.
- the spreading doses used range between 5 and 150 kGy, in particular between 20 and 100 kGy.
- component (a) and / or (b) are optionally di- or multifunctional vinyl compounds before or after the linking reaction, in a preferred embodiment di- or multifunctional methacrylates, in a very preferred embodiment di- or multifunctional acrylates added.
- the polymers according to the invention can preferably be used for the production of PSA tapes. Depending on the polymer composition, these polymers are also suitable for film applications, as release coatings or as PSAs. Highly halogenated polymers could also be used as flame retardants, for example. Furthermore, the polymers produced by the process according to the invention can also be used as heat-activatable PSAs. For this area of application, the polymer should have a glass transition temperature of greater than 25 ° C. For the polymers with a narrow polymer network, applications in the coating sector are also possible. Polymers with a high glass transition temperature produced by the inventive method can also be used as thermoplastics. With a suitable choice of component (b), electrically conductive polymers are also possible. For example, polymers could also be made that emit light under current.
- the test was carried out in accordance with PSTC-7.
- a 50 ⁇ m thick pressure sensitive adhesive layer is applied to a 25 ⁇ m thick PET film.
- a 1, 3 cm wide strip of this pattern is glued to a polished steel plate with a length of 2 cm with a 2 kg roll by rolling over twice.
- the platelets are equilibrated for 30 min under test conditions (temperature and humidity), but without load.
- the test weight is then attached to create a shear stress parallel to the bond area and the time taken for the bond to fail. If a holding time of 10,000 min is reached, the experiment is stopped before the perfect binding fails.
- the peel strength (adhesive strength) was tested in accordance with PSTC-1. To a thickness of 25 ⁇ m
- PET film is applied with a 50 ⁇ m thick adhesive layer.
- a 2 cm wide strip of this pattern is made on a steel plate by rolling over twice glued to a 2 kg roll. The steel plate is clamped and the self-adhesive strip is pulled off over its free end on a tensile testing machine at a peeling angle of 180 °.
- the determination of the average molecular weight M w and the polydispersity PD was carried out by the company Polymer Standards Service in Mainz. THF with 0.1% by volume of trifluoroacetic acid was used as the eluent. The measurement was carried out at 25 ° C. PSS-SDV, 5 ⁇ , 10 3 A, ID 8.0 mm x 50 mm was used as guard column. The columns PSS-SDV, 5 ⁇ , 10 3 and 10 5 and 10 6 , each with ID 8.0 mm x 300 mm, were used for the separation. The sample concentration was 4 g / l, the flow rate 1.0 ml per minute. It was measured against PMMA standards.
- the bis-2,2'-phenylethyltrithiocarbonate (VIII) regulator was prepared starting from 2-phenylethyl bromide with carbon disulfide and sodium hydroxide according to a specification by Synth. Comm., 1988, 18 (13), 1531. Yield 72%.
- the monomers for the nitroxide-controlled polymerizations had previously been purified by distillation and stored under nitrogen. Hydroxyethyl acrylate was also purified by distillation and then stored under an argon atmosphere at -20 ° C.
- the compounding of the melt adhesion cyclers was carried out using the Rheomix 610p measuring kneader from Haake.
- the Rheocord RC 300p device was available as the drive unit.
- the device was controlled with the PolyLab System software.
- the kneader was filled with 52 g of pure acrylic hotmelt PSA ( ⁇ 80% filling level).
- the tests were carried out at a kneading temperature of 140 ° C., a rotation speed of 40 rpm and a kneading time of 15 minutes.
- the polymerization was carried out at a constant outside temperature of 70 ° C. After a reaction time of 6 h, the mixture was diluted with 80 g of acetone. After a reaction time of 24 h, 0.2 g of Vazo 64 TM (DuPont) (2,2'-azo-bis- (isobutyronitrile)) dissolved in 5 g of acetone was again added. After 30 h, the mixture was diluted with 50 g of acetone. The polymerization was stopped by cooling to room temperature after 48 h reaction time. Analysis via GPC (Test C, PMMA standards) showed a molecular weight M n of 166,000 g / mol and M of 421,000 g / mol.
- the polymerization was carried out at a constant outside temperature of 70 ° C. After a reaction time of 6 h, the mixture was diluted with 80 g of acetone. After a reaction time of 24 h, 0.2 g of Vazo 64 TM (DuPont) (2,2'-azobis (isobutyronitrile)) dissolved in 5 g of acetone was again added. After 30 h, the mixture was diluted with 50 g of acetone. The polymerization was stopped by cooling to room temperature after 48 h reaction time. Analysis via GPC (Test C, PMMA standards) showed a molecular weight M n of 166,000 g / mol and M w of 421,000 g / mol.
- Example 2 The procedure of Example 2 was carried out analogously to Example 1. After the 30% solution had been prepared in acetone, the polymer was reacted with 2.5% by weight of 3- (2-aminoethylamino) propylamine and this solution was applied to a primed 23 ⁇ m thick PET film. After drying for 10 minutes at 120 ° C. in a drying cabinet, the mass application of the polymer was 50 g / m 2 . Test methods A and B were carried out to check the adhesive properties.
- Example 3 The procedure of Example 2 was carried out analogously to Example 1. After the 30% solution had been prepared in acetone, the polymer was reacted with 2.5% by weight of 3- (2-aminoethylamino) propylamine and this solution was applied to a primed 23 ⁇ m thick PET film. After drying for 10 minutes at 120 ° C. in a drying cabinet, the mass application of the polymer was 50 g / m 2 . Test methods A and B were carried out to check the adhesive properties.
- the product obtained was concentrated in a vacuum drying cabinet at 10 torr and 45 ° C. for 12 hours.
- Analysis via GPC (Test C, PMMA standards) showed a molecular weight M n of 74,000 g / mol and M w of 123,000 g / mol.
- the polymer was then dissolved in THF and mixed with 2% by weight of 4-methyl-m-phenylene diisocyanate, based on the polymer. This solution was applied to a primed 23 ⁇ m PET film. After drying for 15 minutes at 140 ° C. in a drying cabinet, the mass application of the polymer was 50 g / m 2 . Test methods A and B were carried out to check the adhesive properties.
- Example 4 The procedure for producing the polymer was analogous to Example 3. The polymer was then dissolved in THF and reacted with 2% by weight of 1, 2,7,8-diepoxyoctane and 0.05% by weight of zinc chloride. This solution was applied to a primed 23 ⁇ m thick PET film. After drying for 15 minutes at 140 ° C. in a drying cabinet, the mass application of the polymer was 50 g / m 2 . Test methods A and B were carried out to check the adhesive properties.
- This oligomeric polyacrylate was then dissolved in 300 g of 2-ethylhexyl acrylate, 60 g of methyl acrylate, 150 g of acetone and, after 1 h of inertization with nitrogen gas, again heated to an internal temperature of 58 ° C. At this temperature, 0.2 g of Vazo 64 TM (DuPont) (2,2'-azo-bis- (isobutyronitrile)) dissolved in 5 g of acetone is added. The polymerization was carried out at a constant outside temperature of 70 ° C. After a reaction time of 6 h, the mixture was diluted with 80 g of acetone.
- Vazo 64 TM DuPont 2,2'-azo-bis- (isobutyronitrile) 2 dissolved in 5 g of acetone was again added. After 30 h, the mixture was diluted with 50 g of acetone. The polymerization was terminated by cooling to room temperature after a reaction time of 48 h. Analysis via GPC (Test C, PMMA standards) showed a molecular weight M n of 134,000 g / mol and M of 376,000 g / mol. The solvent was then removed in a drying cabinet at 60 ° C. and 10 Torr vacuum, a 30% solution in acetone was prepared and 3% by weight of adipic acid were added.
- the solution was then applied to a primed 23 ⁇ m thick PET film. After drying for 10 minutes at 130 ° C. in a drying cabinet, the mass application of the polymer was 50 g / m 2 . Test methods A and B were carried out to check the adhesive properties.
- This polyacrylate was then diluted to a 30% solution in acetone and mixed with 2% by weight of 4-methyl-m-phenylene diisocyanate, based on the polymer. This solution was applied to a primed 23 ⁇ m thick PET film. After drying for 15 minutes at 140 ° C in a drying cabinet, the mass application was Polymer 50 g / m 2 . Test methods A and B were carried out to check the adhesive properties.
- Example 7 The procedure was analogous to Example 8.
- the polymer from Example 8 was reacted with 1.5% by weight of Starburst TM (PAMAM) dendrimer generation 2.0 (20% solution in methanol), the dendrimer containing 16 amino groups and an M w of approximately 3256 g / mol.
- PAMAM Starburst TM
- This solution was applied to a primed 23 ⁇ m thick PET film. After drying for 15 minutes at 140 ° C. in a drying cabinet, the mass application of the polymer was 50 g / m 2 .
- Test methods A and B were carried out to check the adhesive properties.
- the polymer from Examples 3 and 4 was produced via a hydroxy-functionalized regulator (XVII).
- XVII hydroxy-functionalized regulator
- the coupling of the hydroxyl end groups in the polyacrylate then ultimately took place in Example 3 via a difunctional isocyanate.
- a difunctional epoxide can also be used to crosslink the hydroxyl end group, this reaction preferably taking place via Lewis acid catalysis. Therefore, the coupling reaction in Example 4 was carried out with zinc chloride as a catalyst.
- Example 5 a polyacrylate was produced using a trithiocarbonate regulator, which carries several amine end groups on both polymer chain ends.
- the reaction was carried out with adipic acid. In this case, the coupling reaction again takes place via an acid-base reaction.
- a functionalized controller was used in Examples 6 and 7.
- the trithiocarbonate XX has two carboxylic acid functions which are incorporated into the polymer in the respective chain end via the polymerization mechanism.
- Example 6 the corresponding polymer was coupled with a difunctional isocyanate.
- a dendrimer was used for coupling, which carries 16 amine functions in the outer group. With this coupling, star polymers can be built up and also networked.
- the inventive crosslinking method chosen makes it possible to significantly increase the pressure-sensitive adhesive compositions produced compared to the reference.
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- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- General Chemical & Material Sciences (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Adhesive Tapes (AREA)
- Graft Or Block Polymers (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Other Resins Obtained By Reactions Not Involving Carbon-To-Carbon Unsaturated Bonds (AREA)
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Abstract
Description
Claims
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10157695 | 2001-11-24 | ||
| DE10157695A DE10157695A1 (de) | 2001-11-24 | 2001-11-24 | 2-Komponentenvernetzung von Endgruppenfunktionalisierten Poly(meth)acrylaten |
| DE10200363 | 2002-01-08 | ||
| DE10200363 | 2002-01-08 | ||
| PCT/EP2002/013176 WO2003046031A1 (de) | 2001-11-24 | 2002-11-22 | 2-komponentenvernetzung von endfunktionalisierten polyacrylaten |
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| Publication Number | Publication Date |
|---|---|
| EP1451238A1 true EP1451238A1 (de) | 2004-09-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP02791700A Withdrawn EP1451237A1 (de) | 2001-11-24 | 2002-11-22 | Vernetzung von photoinitiator-initialisierten polyacrylaten |
| EP02791702A Withdrawn EP1451238A1 (de) | 2001-11-24 | 2002-11-22 | 2-komponentenvernetzung von endfunktionalisierten polyacrylaten |
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| Application Number | Title | Priority Date | Filing Date |
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| EP02791700A Withdrawn EP1451237A1 (de) | 2001-11-24 | 2002-11-22 | Vernetzung von photoinitiator-initialisierten polyacrylaten |
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| Country | Link |
|---|---|
| US (2) | US7402632B2 (de) |
| EP (2) | EP1451237A1 (de) |
| JP (2) | JP2005510597A (de) |
| DE (2) | DE10295498D2 (de) |
| WO (2) | WO2003046030A1 (de) |
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| DE102004044085A1 (de) * | 2004-09-09 | 2006-03-16 | Tesa Ag | Haftklebemasse mit dualem Vernetzungsmechanismus |
| CN101116321B (zh) * | 2004-09-09 | 2012-06-20 | 互用技术集团有限公司 | 用于通信系统互通性的系统和方法 |
| DE102005033622A1 (de) * | 2005-07-19 | 2007-01-25 | Basf Coatings Ag | Laterale Carbamatgruppen und mit aktinischer Strahlung aktivierbare Gruppen enthaltende Copolymerisate, Verfahren zu ihrer Herstellung und ihre Verwendung |
| US8349410B2 (en) | 2006-08-17 | 2013-01-08 | University of Pittsburgh—of the Commonwealth System of Higher Education | Modification of surfaces with polymers |
| KR20080095575A (ko) * | 2007-04-25 | 2008-10-29 | 삼성전자주식회사 | 점착제, 이를 포함하는 편광판 어셈블리 및 액정표시장치 |
| US20090105437A1 (en) | 2007-10-19 | 2009-04-23 | 3M Innovative Properties Company | High refractive index pressure-sensitive adhesives |
| US8378046B2 (en) | 2007-10-19 | 2013-02-19 | 3M Innovative Properties Company | High refractive index pressure-sensitive adhesives |
| JP5116439B2 (ja) * | 2007-10-25 | 2013-01-09 | 三井化学株式会社 | オレフィン系重合体の製造方法 |
| CN101910348B (zh) | 2007-10-30 | 2013-07-03 | 3M创新有限公司 | 高折射率粘合剂 |
| US20090319248A1 (en) * | 2008-06-18 | 2009-12-24 | Eads Na Defense Security And Systems | Systems and methods for a simulated network traffic generator |
| KR101093676B1 (ko) * | 2009-08-07 | 2011-12-15 | 세종대학교산학협력단 | 올레핀계 분절 공중합체의 제조 방법 |
| TWI488747B (zh) * | 2009-09-30 | 2015-06-21 | Dainippon Printing Co Ltd | Optical laminates and optical laminates |
| EP2357162B1 (de) * | 2010-02-11 | 2012-09-05 | HILTI Aktiengesellschaft | Zu Konstruktionszwecken geeigneter Harzmörtel, insbesondere zur chemischen Verankerung |
| JP5834630B2 (ja) * | 2011-02-04 | 2015-12-24 | 日立化成株式会社 | 樹脂組成物、感光性エレメント、レジストパターンの形成方法及びプリント配線板の製造方法 |
| JP6004788B2 (ja) * | 2012-07-02 | 2016-10-12 | 綜研化学株式会社 | 樹脂組成物および重合体の製造方法 |
| KR20160010502A (ko) | 2013-05-28 | 2016-01-27 | 소켄 케미칼 앤드 엔지니어링 캄파니, 리미티드 | 점착제용 조성물 및 점착 시트 |
| CN106459229B (zh) | 2013-12-23 | 2019-03-01 | 塞特工业公司 | 具有低多分散指数(pdi)的聚丙烯腈(pan)聚合物及由其制成的碳纤维 |
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| CN113024714A (zh) * | 2021-03-12 | 2021-06-25 | 深圳力合博汇光敏材料有限公司 | 终端位置含可交联官能团的(甲基)丙烯酸聚合物 |
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- 2002-11-22 EP EP02791700A patent/EP1451237A1/de not_active Withdrawn
- 2002-11-22 EP EP02791702A patent/EP1451238A1/de not_active Withdrawn
- 2002-11-22 JP JP2003547478A patent/JP2005510597A/ja active Pending
- 2002-11-22 US US10/496,324 patent/US7402632B2/en not_active Expired - Fee Related
- 2002-11-22 US US10/496,325 patent/US7271203B2/en not_active Expired - Lifetime
- 2002-11-22 DE DE10295498T patent/DE10295498D2/de not_active Withdrawn - After Issue
- 2002-11-22 WO PCT/EP2002/013173 patent/WO2003046030A1/de not_active Ceased
- 2002-11-22 JP JP2003547477A patent/JP2005510596A/ja active Pending
- 2002-11-22 DE DE10295497T patent/DE10295497D2/de not_active Withdrawn - After Issue
- 2002-11-22 WO PCT/EP2002/013176 patent/WO2003046031A1/de not_active Ceased
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| See also references of WO03046031A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| US20050009995A1 (en) | 2005-01-13 |
| WO2003046031A1 (de) | 2003-06-05 |
| US7402632B2 (en) | 2008-07-22 |
| US7271203B2 (en) | 2007-09-18 |
| JP2005510596A (ja) | 2005-04-21 |
| DE10295497D2 (de) | 2005-01-27 |
| US20050020714A1 (en) | 2005-01-27 |
| DE10295498D2 (de) | 2004-11-11 |
| EP1451237A1 (de) | 2004-09-01 |
| WO2003046030A1 (de) | 2003-06-05 |
| JP2005510597A (ja) | 2005-04-21 |
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