EP3861042A1 - Compositions d'hydrogels - Google Patents
Compositions d'hydrogelsInfo
- Publication number
- EP3861042A1 EP3861042A1 EP19795284.9A EP19795284A EP3861042A1 EP 3861042 A1 EP3861042 A1 EP 3861042A1 EP 19795284 A EP19795284 A EP 19795284A EP 3861042 A1 EP3861042 A1 EP 3861042A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- diisocyanate
- agents
- chosen
- optionally
- polyisocyanate
- 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- Withdrawn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
- 239000000203 mixture Substances 0.000 title claims abstract description 126
- 239000000017 hydrogel Substances 0.000 title claims description 44
- 229920005862 polyol Polymers 0.000 claims abstract description 68
- 150000003077 polyols Chemical class 0.000 claims abstract description 68
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 66
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims abstract description 64
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 46
- 229920000223 polyglycerol Polymers 0.000 claims abstract description 46
- 239000005056 polyisocyanate Substances 0.000 claims abstract description 40
- 229920001228 polyisocyanate Polymers 0.000 claims abstract description 38
- 125000005442 diisocyanate group Chemical group 0.000 claims abstract description 35
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims abstract description 34
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims abstract description 34
- 238000006243 chemical reaction Methods 0.000 claims abstract description 31
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000001301 oxygen Substances 0.000 claims abstract description 26
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 26
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000003054 catalyst Substances 0.000 claims abstract description 25
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 24
- 230000035699 permeability Effects 0.000 claims abstract description 22
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000000654 additive Substances 0.000 claims abstract description 15
- 239000000412 dendrimer Substances 0.000 claims abstract description 15
- 229920000570 polyether Polymers 0.000 claims abstract description 15
- 239000004721 Polyphenylene oxide Substances 0.000 claims abstract description 14
- 150000001298 alcohols Chemical class 0.000 claims abstract description 14
- 229920000736 dendritic polymer Polymers 0.000 claims abstract description 12
- 239000003814 drug Substances 0.000 claims abstract description 12
- 239000004904 UV filter Substances 0.000 claims abstract description 11
- 230000000996 additive effect Effects 0.000 claims abstract description 11
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 11
- 239000000314 lubricant Substances 0.000 claims abstract description 11
- 230000001580 bacterial effect Effects 0.000 claims abstract description 10
- 229940124597 therapeutic agent Drugs 0.000 claims abstract description 10
- 230000003214 anti-biofilm Effects 0.000 claims abstract description 8
- 239000004599 antimicrobial Substances 0.000 claims abstract description 8
- 239000004034 viscosity adjusting agent Substances 0.000 claims abstract description 7
- 239000006096 absorbing agent Substances 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 63
- 229920001223 polyethylene glycol Polymers 0.000 claims description 46
- -1 compatibilizers Substances 0.000 claims description 33
- 239000012948 isocyanate Substances 0.000 claims description 32
- 238000000034 method Methods 0.000 claims description 27
- 150000002513 isocyanates Chemical class 0.000 claims description 25
- 229920000642 polymer Polymers 0.000 claims description 24
- 238000006116 polymerization reaction Methods 0.000 claims description 23
- 239000005057 Hexamethylene diisocyanate Substances 0.000 claims description 21
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 claims description 21
- 239000002904 solvent Substances 0.000 claims description 21
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims description 20
- 239000000463 material Substances 0.000 claims description 20
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 18
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 17
- 239000012298 atmosphere Substances 0.000 claims description 17
- 230000008961 swelling Effects 0.000 claims description 17
- 238000002360 preparation method Methods 0.000 claims description 16
- 239000005058 Isophorone diisocyanate Substances 0.000 claims description 15
- 239000000010 aprotic solvent Substances 0.000 claims description 15
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 claims description 13
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 12
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims description 12
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 claims description 11
- 229960004063 propylene glycol Drugs 0.000 claims description 11
- 235000013772 propylene glycol Nutrition 0.000 claims description 11
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 claims description 10
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 10
- 239000002202 Polyethylene glycol Substances 0.000 claims description 10
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 claims description 10
- 230000008569 process Effects 0.000 claims description 10
- 239000000047 product Substances 0.000 claims description 10
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 claims description 9
- 239000003086 colorant Substances 0.000 claims description 9
- 150000001875 compounds Chemical class 0.000 claims description 9
- 229920001577 copolymer Polymers 0.000 claims description 9
- 239000013638 trimer Substances 0.000 claims description 9
- 239000002250 absorbent Substances 0.000 claims description 8
- 230000002745 absorbent Effects 0.000 claims description 8
- 238000004132 cross linking Methods 0.000 claims description 8
- 150000002009 diols Chemical class 0.000 claims description 8
- 230000036571 hydration Effects 0.000 claims description 8
- 238000006703 hydration reaction Methods 0.000 claims description 8
- 229920001296 polysiloxane Polymers 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 239000003607 modifier Substances 0.000 claims description 7
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 claims description 7
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 7
- VGHSXKTVMPXHNG-UHFFFAOYSA-N 1,3-diisocyanatobenzene Chemical compound O=C=NC1=CC=CC(N=C=O)=C1 VGHSXKTVMPXHNG-UHFFFAOYSA-N 0.000 claims description 6
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 claims description 6
- 229910052797 bismuth Inorganic materials 0.000 claims description 6
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 claims description 6
- 239000004205 dimethyl polysiloxane Substances 0.000 claims description 6
- SZXQTJUDPRGNJN-UHFFFAOYSA-N dipropylene glycol Chemical compound OCCCOCCCO SZXQTJUDPRGNJN-UHFFFAOYSA-N 0.000 claims description 6
- 239000007943 implant Substances 0.000 claims description 6
- ZFSLODLOARCGLH-UHFFFAOYSA-N isocyanuric acid Chemical compound OC1=NC(O)=NC(O)=N1 ZFSLODLOARCGLH-UHFFFAOYSA-N 0.000 claims description 6
- 238000000465 moulding Methods 0.000 claims description 6
- 235000010356 sorbitol Nutrition 0.000 claims description 6
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 claims description 6
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 claims description 5
- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 claims description 5
- 238000010521 absorption reaction Methods 0.000 claims description 5
- 125000002947 alkylene group Chemical group 0.000 claims description 5
- 238000005266 casting Methods 0.000 claims description 5
- XXMIOPMDWAUFGU-UHFFFAOYSA-N hexane-1,6-diol Chemical compound OCCCCCCO XXMIOPMDWAUFGU-UHFFFAOYSA-N 0.000 claims description 5
- 239000004014 plasticizer Substances 0.000 claims description 5
- 229920001451 polypropylene glycol Polymers 0.000 claims description 5
- 239000000600 sorbitol Substances 0.000 claims description 5
- 150000003512 tertiary amines Chemical class 0.000 claims description 5
- PAUHLEIGHAUFAK-UHFFFAOYSA-N 1-isocyanato-1-[(1-isocyanatocyclohexyl)methyl]cyclohexane Chemical compound C1CCCCC1(N=C=O)CC1(N=C=O)CCCCC1 PAUHLEIGHAUFAK-UHFFFAOYSA-N 0.000 claims description 4
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 4
- TVXBFESIOXBWNM-UHFFFAOYSA-N Xylitol Natural products OCCC(O)C(O)C(O)CCO TVXBFESIOXBWNM-UHFFFAOYSA-N 0.000 claims description 4
- 239000004480 active ingredient Substances 0.000 claims description 4
- 125000002015 acyclic group Chemical group 0.000 claims description 4
- 239000003906 humectant Substances 0.000 claims description 4
- HEBKCHPVOIAQTA-UHFFFAOYSA-N meso ribitol Natural products OCC(O)C(O)C(O)CO HEBKCHPVOIAQTA-UHFFFAOYSA-N 0.000 claims description 4
- 229910052718 tin Inorganic materials 0.000 claims description 4
- 239000008096 xylene Substances 0.000 claims description 4
- 239000000811 xylitol Substances 0.000 claims description 4
- HEBKCHPVOIAQTA-SCDXWVJYSA-N xylitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)CO HEBKCHPVOIAQTA-SCDXWVJYSA-N 0.000 claims description 4
- 235000010447 xylitol Nutrition 0.000 claims description 4
- 229960002675 xylitol Drugs 0.000 claims description 4
- WOGVOIWHWZWYOZ-UHFFFAOYSA-N 1,1-diisocyanatoethane Chemical compound O=C=NC(C)N=C=O WOGVOIWHWZWYOZ-UHFFFAOYSA-N 0.000 claims description 3
- ZTNJGMFHJYGMDR-UHFFFAOYSA-N 1,2-diisocyanatoethane Chemical compound O=C=NCCN=C=O ZTNJGMFHJYGMDR-UHFFFAOYSA-N 0.000 claims description 3
- RTTZISZSHSCFRH-UHFFFAOYSA-N 1,3-bis(isocyanatomethyl)benzene Chemical compound O=C=NCC1=CC=CC(CN=C=O)=C1 RTTZISZSHSCFRH-UHFFFAOYSA-N 0.000 claims description 3
- JFRQLKNEDLLXOQ-UHFFFAOYSA-N 1,3-diisocyanato-2,4-dimethylbenzene Chemical compound CC1=CC=C(N=C=O)C(C)=C1N=C=O JFRQLKNEDLLXOQ-UHFFFAOYSA-N 0.000 claims description 3
- AGJCSCSSMFRMFQ-UHFFFAOYSA-N 1,4-bis(2-isocyanatopropan-2-yl)benzene Chemical compound O=C=NC(C)(C)C1=CC=C(C(C)(C)N=C=O)C=C1 AGJCSCSSMFRMFQ-UHFFFAOYSA-N 0.000 claims description 3
- ALQLPWJFHRMHIU-UHFFFAOYSA-N 1,4-diisocyanatobenzene Chemical compound O=C=NC1=CC=C(N=C=O)C=C1 ALQLPWJFHRMHIU-UHFFFAOYSA-N 0.000 claims description 3
- CDMDQYCEEKCBGR-UHFFFAOYSA-N 1,4-diisocyanatocyclohexane Chemical compound O=C=NC1CCC(N=C=O)CC1 CDMDQYCEEKCBGR-UHFFFAOYSA-N 0.000 claims description 3
- KIAZLPPFFCCZJS-UHFFFAOYSA-N 1,5-diisocyanato-2,3-dimethylbenzene Chemical compound CC1=CC(N=C=O)=CC(N=C=O)=C1C KIAZLPPFFCCZJS-UHFFFAOYSA-N 0.000 claims description 3
- FWWWRCRHNMOYQY-UHFFFAOYSA-N 1,5-diisocyanato-2,4-dimethylbenzene Chemical compound CC1=CC(C)=C(N=C=O)C=C1N=C=O FWWWRCRHNMOYQY-UHFFFAOYSA-N 0.000 claims description 3
- 229940008841 1,6-hexamethylene diisocyanate Drugs 0.000 claims description 3
- URHPTYWRULWLGI-UHFFFAOYSA-N 1-bromo-2,4-diisocyanatobenzene Chemical compound BrC1=CC=C(N=C=O)C=C1N=C=O URHPTYWRULWLGI-UHFFFAOYSA-N 0.000 claims description 3
- SZBXTBGNJLZMHB-UHFFFAOYSA-N 1-chloro-2,4-diisocyanatobenzene Chemical compound ClC1=CC=C(N=C=O)C=C1N=C=O SZBXTBGNJLZMHB-UHFFFAOYSA-N 0.000 claims description 3
- SIYBFAKKDKDECW-UHFFFAOYSA-N 1-ethoxy-2,4-diisocyanatobenzene Chemical compound CCOC1=CC=C(N=C=O)C=C1N=C=O SIYBFAKKDKDECW-UHFFFAOYSA-N 0.000 claims description 3
- QILYSOTYPKBIDW-UHFFFAOYSA-N 2,4-diisocyanato-1-(2-phenylethenyl)benzene Chemical compound O=C=NC1=CC(N=C=O)=CC=C1C=CC1=CC=CC=C1 QILYSOTYPKBIDW-UHFFFAOYSA-N 0.000 claims description 3
- DZDVHNPXFWWDRM-UHFFFAOYSA-N 2,4-diisocyanato-1-methoxybenzene Chemical compound COC1=CC=C(N=C=O)C=C1N=C=O DZDVHNPXFWWDRM-UHFFFAOYSA-N 0.000 claims description 3
- GBPMCEJJWVOYOG-UHFFFAOYSA-N 2,6-diisocyanato-1-benzofuran Chemical compound C1=C(N=C=O)C=C2OC(N=C=O)=CC2=C1 GBPMCEJJWVOYOG-UHFFFAOYSA-N 0.000 claims description 3
- VWYHWAHYVKZKHI-UHFFFAOYSA-N N=C=O.N=C=O.C1=CC(N)=CC=C1C1=CC=C(N)C=C1 Chemical compound N=C=O.N=C=O.C1=CC(N)=CC=C1C1=CC=C(N)C=C1 VWYHWAHYVKZKHI-UHFFFAOYSA-N 0.000 claims description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 3
- 125000001118 alkylidene group Chemical group 0.000 claims description 3
- KORSJDCBLAPZEQ-UHFFFAOYSA-N dicyclohexylmethane-4,4'-diisocyanate Chemical compound C1CC(N=C=O)CCC1CC1CCC(N=C=O)CC1 KORSJDCBLAPZEQ-UHFFFAOYSA-N 0.000 claims description 3
- 125000005843 halogen group Chemical group 0.000 claims description 3
- 125000002950 monocyclic group Chemical group 0.000 claims description 3
- 235000015097 nutrients Nutrition 0.000 claims description 3
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N phenylbenzene Natural products C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 claims description 3
- 239000003880 polar aprotic solvent Substances 0.000 claims description 3
- 125000003367 polycyclic group Polymers 0.000 claims description 3
- 150000004756 silanes Chemical class 0.000 claims description 3
- 125000001424 substituent group Chemical group 0.000 claims description 3
- TXFBTGWUZRBEHR-UHFFFAOYSA-J tetrachloroiron Chemical compound Cl[Fe](Cl)(Cl)Cl TXFBTGWUZRBEHR-UHFFFAOYSA-J 0.000 claims description 3
- 230000001225 therapeutic effect Effects 0.000 claims description 3
- KSBAEPSJVUENNK-UHFFFAOYSA-L tin(ii) 2-ethylhexanoate Chemical compound [Sn+2].CCCCC(CC)C([O-])=O.CCCCC(CC)C([O-])=O KSBAEPSJVUENNK-UHFFFAOYSA-L 0.000 claims description 3
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- 239000010936 titanium Substances 0.000 claims description 3
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 claims description 3
- 229940088594 vitamin Drugs 0.000 claims description 3
- 229930003231 vitamin Natural products 0.000 claims description 3
- 235000013343 vitamin Nutrition 0.000 claims description 3
- 239000011782 vitamin Substances 0.000 claims description 3
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 claims description 2
- UJURFSDRMQAYSU-UHFFFAOYSA-N N=C=O.N=C=O.C1=CC=CC2=C(C=CC=C3)C3=C21 Chemical compound N=C=O.N=C=O.C1=CC=CC2=C(C=CC=C3)C3=C21 UJURFSDRMQAYSU-UHFFFAOYSA-N 0.000 claims description 2
- 125000000217 alkyl group Chemical group 0.000 claims description 2
- 235000010290 biphenyl Nutrition 0.000 claims description 2
- 239000004305 biphenyl Substances 0.000 claims description 2
- NUMHJBONQMZPBW-UHFFFAOYSA-K bis(2-ethylhexanoyloxy)bismuthanyl 2-ethylhexanoate Chemical compound [Bi+3].CCCCC(CC)C([O-])=O.CCCCC(CC)C([O-])=O.CCCCC(CC)C([O-])=O NUMHJBONQMZPBW-UHFFFAOYSA-K 0.000 claims description 2
- JDIBGQFKXXXXPN-UHFFFAOYSA-N bismuth(3+) Chemical compound [Bi+3] JDIBGQFKXXXXPN-UHFFFAOYSA-N 0.000 claims description 2
- NSPSPMKCKIPQBH-UHFFFAOYSA-K bismuth;7,7-dimethyloctanoate Chemical compound [Bi+3].CC(C)(C)CCCCCC([O-])=O.CC(C)(C)CCCCCC([O-])=O.CC(C)(C)CCCCCC([O-])=O NSPSPMKCKIPQBH-UHFFFAOYSA-K 0.000 claims description 2
- 239000007795 chemical reaction product Substances 0.000 claims description 2
- 238000005520 cutting process Methods 0.000 claims description 2
- 125000000325 methylidene group Chemical group [H]C([H])=* 0.000 claims description 2
- 150000002902 organometallic compounds Chemical class 0.000 claims description 2
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 claims 2
- 230000003712 anti-aging effect Effects 0.000 claims 1
- 125000000732 arylene group Chemical group 0.000 claims 1
- 125000006267 biphenyl group Chemical group 0.000 claims 1
- BRWZYZWZBMGMMG-UHFFFAOYSA-J dodecanoate tin(4+) Chemical compound [Sn+4].CCCCCCCCCCCC([O-])=O.CCCCCCCCCCCC([O-])=O.CCCCCCCCCCCC([O-])=O.CCCCCCCCCCCC([O-])=O BRWZYZWZBMGMMG-UHFFFAOYSA-J 0.000 claims 1
- RJLZSKYNYLYCNY-UHFFFAOYSA-N ethyl carbamate;isocyanic acid Chemical compound N=C=O.CCOC(N)=O RJLZSKYNYLYCNY-UHFFFAOYSA-N 0.000 claims 1
- 230000000813 microbial effect Effects 0.000 claims 1
- 239000004150 EU approved colour Substances 0.000 abstract 1
- 239000003623 enhancer Substances 0.000 abstract 1
- 229940006093 opthalmologic coloring agent diagnostic Drugs 0.000 abstract 1
- 239000000499 gel Substances 0.000 description 41
- 230000015572 biosynthetic process Effects 0.000 description 20
- 235000011187 glycerol Nutrition 0.000 description 19
- 235000019441 ethanol Nutrition 0.000 description 17
- 229910052757 nitrogen Inorganic materials 0.000 description 14
- 238000005755 formation reaction Methods 0.000 description 13
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 12
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 12
- 238000009472 formulation Methods 0.000 description 12
- 125000001931 aliphatic group Chemical group 0.000 description 11
- 239000000376 reactant Substances 0.000 description 11
- WOBHKFSMXKNTIM-UHFFFAOYSA-N Hydroxyethyl methacrylate Chemical compound CC(=C)C(=O)OCCO WOBHKFSMXKNTIM-UHFFFAOYSA-N 0.000 description 10
- 239000007788 liquid Substances 0.000 description 10
- 239000000178 monomer Substances 0.000 description 10
- 230000003746 surface roughness Effects 0.000 description 9
- 238000003786 synthesis reaction Methods 0.000 description 9
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 8
- 210000001508 eye Anatomy 0.000 description 8
- GQHTUMJGOHRCHB-UHFFFAOYSA-N 2,3,4,6,7,8,9,10-octahydropyrimido[1,2-a]azepine Chemical compound C1CCCCN2CCCN=C21 GQHTUMJGOHRCHB-UHFFFAOYSA-N 0.000 description 7
- 239000000470 constituent Substances 0.000 description 7
- 238000005259 measurement Methods 0.000 description 7
- 238000002156 mixing Methods 0.000 description 7
- 102100026735 Coagulation factor VIII Human genes 0.000 description 6
- 101000911390 Homo sapiens Coagulation factor VIII Proteins 0.000 description 6
- 235000006708 antioxidants Nutrition 0.000 description 6
- 238000004630 atomic force microscopy Methods 0.000 description 6
- 239000003153 chemical reaction reagent Substances 0.000 description 6
- 235000013870 dimethyl polysiloxane Nutrition 0.000 description 6
- 239000003999 initiator Substances 0.000 description 6
- BDAWXSQJJCIFIK-UHFFFAOYSA-N potassium methoxide Chemical compound [K+].[O-]C BDAWXSQJJCIFIK-UHFFFAOYSA-N 0.000 description 6
- 239000012429 reaction media Substances 0.000 description 6
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 description 5
- 238000004458 analytical method Methods 0.000 description 5
- 230000008570 general process Effects 0.000 description 5
- 239000002609 medium Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- CTKINSOISVBQLD-UHFFFAOYSA-N Glycidol Chemical compound OCC1CO1 CTKINSOISVBQLD-UHFFFAOYSA-N 0.000 description 4
- 238000005481 NMR spectroscopy Methods 0.000 description 4
- 229920000604 Polyethylene Glycol 200 Polymers 0.000 description 4
- 239000004372 Polyvinyl alcohol Substances 0.000 description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- 229910052786 argon Inorganic materials 0.000 description 4
- 238000007334 copolymerization reaction Methods 0.000 description 4
- 230000018044 dehydration Effects 0.000 description 4
- 238000006297 dehydration reaction Methods 0.000 description 4
- GPLRAVKSCUXZTP-UHFFFAOYSA-N diglycerol Chemical compound OCC(O)COCC(O)CO GPLRAVKSCUXZTP-UHFFFAOYSA-N 0.000 description 4
- 150000002632 lipids Chemical class 0.000 description 4
- 229920002338 polyhydroxyethylmethacrylate Polymers 0.000 description 4
- 229920002451 polyvinyl alcohol Polymers 0.000 description 4
- 239000002243 precursor Substances 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
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Classifications
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
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- A61K47/08—Organic compounds, e.g. natural or synthetic hydrocarbons, polyolefins, mineral oil, petrolatum or ozokerite containing oxygen, e.g. ethers, acetals, ketones, quinones, aldehydes, peroxides
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- A—HUMAN NECESSITIES
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
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- C08G18/08—Processes
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
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- C08G18/4829—Polyethers containing at least three hydroxy groups
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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
- C08G18/48—Polyethers
- C08G18/4862—Polyethers containing at least a part of the ether groups in a side chain
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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
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/73—Polyisocyanates or polyisothiocyanates acyclic
-
- 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
- C08G65/32—Polymers modified by chemical after-treatment
- C08G65/329—Polymers modified by chemical after-treatment with organic compounds
- C08G65/333—Polymers modified by chemical after-treatment with organic compounds containing nitrogen
- C08G65/33348—Polymers modified by chemical after-treatment with organic compounds containing nitrogen containing isocyanate group
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
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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
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
- G02B1/041—Lenses
- G02B1/043—Contact lenses
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2430/00—Materials or treatment for tissue regeneration
- A61L2430/16—Materials or treatment for tissue regeneration for reconstruction of eye parts, e.g. intraocular lens, cornea
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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
- C08G2110/00—Foam properties
- C08G2110/0091—Aerogels; Xerogels
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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
- C08G2210/00—Compositions for preparing hydrogels
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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
- C08G2650/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
- C08G2650/28—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule characterised by the polymer type
- C08G2650/52—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule characterised by the polymer type obtained by dehydration of polyhydric alcohols
- C08G2650/54—Polyglycerols
Definitions
- the present invention relates to crosslinkable and crosslinked compositions, as well as to a hydrogel capable of being obtained from the crosslinked composition.
- the present invention finds industrial applications in the field of biocompatible materials, and in particular that of ocular lenses.
- a contact lens, worn on the eye, is used to correct vision defects such as myopia, astigmatism, or farsightedness.
- vision defects such as myopia, astigmatism, or farsightedness.
- the human eye needs to maintain a certain level of hydration and oxygen circulation.
- the lens in contact with the eye must meet specifications including - but not limited to good oxygen permeability, good comfort, or even a hydrophilic character.
- Contact lenses can be classified into two categories: rigid contact lenses, in particular rigid gas-permeable lenses, and soft contact lenses, such as hydrogel lenses or silicone hydrogel lenses.
- a polymerizable lens precursor composition is polymerized to form a crosslinked contact lens product, which can then be processed to form a hydrated contact lens.
- the A polymerizable precursor composition can be placed on a cavity of a mold in the form of a contact lens, and can be polymerized therein to form a contact lens located in the cavity.
- the polymerization can be carried out by exposure of the polymerizable composition by heating in the possible presence of a thermal initiator or by exposure to ultraviolet light.
- a hydrogel is a hydrated crosslinked polymer system that contains water in a state of equilibrium. It is typically oxygen permeable and biocompatible, making it a preferred material for producing biomedical devices and in particular contact or intraocular lenses. Soft hydrogel lenses are made from few basic monomers. Their choice will depend on the final properties that the lens manufacturer wishes to favor:
- conventional hydrogel contact lenses are the polymerized product of a lens precursor (s) composition containing hydrophilic monomers such as 2-hydroxyethyl methacrylate
- HEMA methacrylic acid
- MAA methacrylic acid
- MMA methyl methacrylate
- N-vinylpyrrolidone N-vinylpyrrolidone
- the precursor compositions also frequently contain one or more catalysts and one or more crosslinking agents.
- these lenses did not provide sufficient oxygen permeability to prevent the problems associated with corneal hypoxia. Attempts to solve this problem included the copolymerization of HEMA with hydrophilic monomers such as methacrylic acid and N-vinylpyrrolidone. Although these polymers increase the level of oxygen permeability, the incorporation of these comonomers also leads to problems such as the deposition of proteins and lipids, drying of the cornea and dehydration of the lenses.
- current contact lenses for silicone or PHEMA hydrogels are often associated with low biocompatibility, as they trigger an immune response when biomolecules such as proteins, lipids, immunoglobulins and complement proteins bind to the lens surface. This reduces the stability of the tear film, and causes a feeling of dryness in the eye.
- a class of polymers for new contact lens materials is that of polyurethanes based on polyethylene glycols (PEG), as described for example in document EP2496620 ([1]), which illustrates a material comprising PEG diol, polyol , diisocyanate and polydimethylsiloxane (PDMS) diol.
- PEG polyethylene glycols
- PDMS polydimethylsiloxane
- the Applicant has succeeded in creating a hydrogel, transparent, capable of swelling in an aqueous medium, and showing very interesting properties compared to existing materials, in particular by using polyglycerol, in particular hyperbranched, advantageously combined with other polyols and polyisocyanates.
- the medical device is biocompatible, and in particular suitable for contact with the eyes, and hydrophilic. It also has particularly advantageous properties in terms of oxygen permeability, water content, resistance to water loss or water retention, mechanical properties and resistance (Young's modulus, stress and elongation at failure) but also in terms of surface properties such as the coefficient of friction, surface roughness and wettability.
- the Applicant has successfully synthesized a hydrogel by reacting a macropolyol, in particular a hyperbranched polyglycerol, with a polyisocyanate, in particular a diisocyanate.
- the Applicant has succeeded, in one aspect of the invention, in the synthesis of a hydrogel by reaction of a macropolyol, in particular of a hyperbranched polyglycerol, with a finished prepolymer isocyanate and / or by direct reaction with a mixture of polyols and polyisocyanates.
- a first object of the invention relates to a crosslinkable composition
- a crosslinkable composition comprising:
- A1) at least one multifunctional isocyanate terminated urethane prepolymer comprising from 1 to 16 isocyanate functionality (s) on average, the average functionality being greater than strictly 1, the prepolymer being a product of the reaction of a diisocyanate, of a triisocyanate, or of a polyisocyanate of functionality strictly greater than 3, preferably aliphatic or cycloaliphatic and liquid at 25 ° C ⁇ 3 ° C, with a polyol or a monofunctional alcohol comprising 1 to 8, preferably 2 to 3, hydroxyl groups; and or
- G) optionally at least one additive chosen from antioxidants, oxygen permeability promoters, water retention agents, corneal lubrication agents, compatibilizing agents, coloring agents, opacifying agents , antimicrobial agents, viscosity modifiers, therapeutic agents and bacterial anti-biofilm agents; and or
- H optionally at least one agent chosen from UV filters, UV absorbents and blue light filters.
- a second subject of the invention relates to a crosslinked composition, capable of forming a hydrogel polymer by absorption of water, resulting from the crosslinking of a crosslinkable composition of the invention, either under anhydrous conditions or in the presence of small amounts of water in particular so as to promote the formation of urea bonds, and either under an inert atmosphere or under an ambient atmosphere, for example according to a process for preparing a crosslinked composition according to the invention as described below.
- Crosslinkable composition is understood to mean, within the meaning of the present invention, a composition liquid at room temperature which can be transformed into a material, in particular by reaction of its various constituents after being brought into contact by mixing, possible addition of catalysts and temperature rise .
- prepolymer means an oligomer or a polymer having reactive groups which allow it to participate in a subsequent polymerization, and thus to incorporate several monomer units in at least one chain of the final macromolecule or in the final polymer material constituting the hydrogel.
- the prepolymer can be liquid at room temperature (about 25 ° C ⁇ 3 ° C), or be solid at room temperature.
- the prepolymer is preferably liquid at the temperature where the formation reaction is carried out.
- the prepolymer of the present invention may be a multifunctional isocyanate terminated urethane prepolymer comprising from 1 to 16 isocyanate functionalities. It can be for example 0, 1, 2, or 3, or 4, or 5, or 6, or 7, or 8, or 9, or 10, or 1 1, or 12, or 13, or 14 , or 15, or 16 isocyanate functionalities.
- the average functionality is strictly greater than 1 so that there is crosslinking and the formation of a hydrogel network.
- the average functionality can be at least 2, or at least 3, or at least 4, or at least 5, or at least 6, or at least 7, or even Advantageously greater than 7.
- molecules of functionality 2 must be present.
- the average functionality can be calculated as being equal to the molar average of the functionalities of the different molecules.
- the prepolymer can be a crosslinking agent.
- the prepolymer is prepared separately, before mixing with the other components of the crosslinkable composition of the invention, by prior reaction of a polyisocyanate, for example a diisocyanate, a triisocyanate or a polyisocyanate of functionality strictly greater than 3, with a polyol, which can be linear or branched, comprising 1 to 8, preferably 2 to 6 hydroxyl groups.
- a polyisocyanate for example a diisocyanate, a triisocyanate or a polyisocyanate of functionality strictly greater than 3
- a polyol which can be linear or branched, comprising 1 to 8, preferably 2 to 6 hydroxyl groups.
- the diisocyanate, the triisocyanate, and the polyisocyanate of functionality strictly greater than 3, hereinafter interchangeably "polyisocyanate (s)", can be aliphatic or cycloaliphatic. They are liquid at room temperature (around 25 ° C ⁇ 3 ° C).
- the triisocyanate can for example be aliphatic and without aromatic units. It can be, for example, the functional trimer (isocyanurate) of isophorone diisocyanate, the trimer of hexamethylene diisocyanate.
- the prepolymer can be derived from a polyisocyanate of functionality greater than 2, for example an isocyanurate or an allophanate.
- the diisocyanate can be of the following formula: OCN-Ri-NCO, in which Ri represents a C1 to C15 alkylene linear or branched, mono- or poly-cyclic or acyclic, a C1 to C4 alkylidene, or a C6-C10-arylene optionally carrying at least one substituent chosen from a linear or branched C1 -C6alkyl, a C1 -C2 alkylene, or halogen atom.
- Ri represents a C1 to C15 alkylene linear or branched, mono- or poly-cyclic or acyclic, a C1 to C4 alkylidene, or a C6-C10-arylene optionally carrying at least one substituent chosen from a linear or branched C1 -C6alkyl, a C1 -C2 alkylene, or halogen atom.
- the diisocyanate can be chosen from methylene dicyclohexyl di-isocyanate, hexamethylene diisocyanate, isophorone diisocyanate, toluene-2,4-di-isocyanate, toluene-2,6-di-isocyanate, mixtures of toluene 2,4 and 2,6-diisocyanates, ethylene diisocyanate, ethylidene diisocyanate, propylene-1, 2-diisocyanate, cyclohexylene-1, 2-diisocyanate, cyclohexylene-1, 4-diisocyanate, m -phenylene diisocyanate, 4,4'-biphenylene diisocyanate, 3,3'-dichloro-4,4'- biphenylene diisocyanate, 1, 4-tetramethylene diisocyanate, 1, 10-decamethylene diisocyanate, cumene-2, 4 diis
- the polyol used in the context of the preparation of the prepolymer also called monofunctional alcohol polyalcohol or glycol, can comprise from 1 to 8 hydroxyl groups, for example 1, or 2, or 3, or 4, or 5, or 6, or 7 , or 8 hydroxyl groups, preferably 2 to 3 hydroxyl groups.
- It can be chosen from linear or branched poly (ethylene glycols) (PEG) or poly (propylene glycols) (PPG), comprising at least one hydroxyl function; molecular polyols comprising at least one hydroxyl function; the co-polymers of poly (ethylene glycols) (PEG) and of poly (propylene glycols) (PPG); and diols comprising silanes or polysiloxanes having terminal hydroxyl functional groups.
- PEG poly (ethylene glycols)
- PPG poly (propylene glycols)
- the polyol can in particular be chosen from ethylene glycol, diethylene glycol, triethylene glycol, trimethylolpropane, glycerol, pentaerythritol, xylitol, sorbitol, ethanol, butanol, phenol, 1, 2- propylene glycol, dipropylene glycol, 1, 4 butane diol, hexamethylene glycol, polydimethylsiloxanediols, and linear or branched / branched PEG / PPG copolymers, such as the compounds of the commercial ranges Pluronic® or Tetronic® for example.
- the PEGdiols and the PPGdiols can have a molar mass of between 200g / mol and 6000g / mol, preferably between 200 g / mol and 5000 g / mol.
- the prepolymer obtained can be poly (ethylene glycol) -hexamethylene diisocyanate diisocyanate (that is to say a difunctional polyethylene glycol functionalized at each end with a l hexamethylene diisocyanate, leading to a polyethylene glycol with two terminal isocyanate functions), poly (ethylene glycol) - isophorone diisocyanate diisocyanate (that is to say a difunctional polyethylene glycol functionalized at each end by the isophorone diisocyanate conducting to a polyethylene glycol with two terminal isocyanate functions), poly (ethylene glycol) methylenebis (4-cyclohexyl) isocyanate diisocyanate (PEG- (h-MDI) 2) (that is to say a difunctional polyethylene glycol functionalized with each end with methylenebis (4-cyclohexyl) isocyanate leading to a polyethylene glycol with two terminal isocyanate functions), or Trimethylene propane ethoxylate-tria poly
- the reaction between the diisocyanate or the triisocyanate and the polyol, allowing the formation of the prepolymer can take place in a solvent medium, for example a polar aprotic solvent of the dimethylformamide, acetonitrile or dimethyl sulfoxide type.
- a solvent medium for example a polar aprotic solvent of the dimethylformamide, acetonitrile or dimethyl sulfoxide type.
- the reaction can take place in bulk, in other words without solvent.
- the mixture between the prepolymer and the polyisocyanate is liquid at the forming temperature.
- the prepolymer can be prepared at temperatures of around 60 ° C in solvent-free systems, if necessary.
- the isocyanate / hydroxyl stoichiometric ratios used can be between 2.2 / 1 and 1.1 / 1, for example 2/1, in particular in the case of reactions between diisocyanates and diols.
- Reaction temperatures can range from room temperature to 120 ° C, preferably between 25 and 80 ° C, more preferably at 70 ° C, for example for 1 to 12 hours until formation of the prepolymer, which can be characterized by 1 H NMR, IR, SEC or by titration of the residual NCO groups.
- a catalyst is optional, but can be done to accelerate the reaction rate.
- the catalyst can be chosen from organobismuth, organometallic tin salts such as dibutyl tin laurate and / or tin octoate, iron tetrachloride, tertiary amines such as triethylamine, and mixtures thereof.
- the catalyst may be present at a level of 0.01 to 2% by mass of the reactants, for example from 0.03 to 0.08% by mass of the prepolymer, preferably at 0.05% by mass.
- the polyol prior to the reaction with the polyisocyanate, can be dried under reduced pressure at a temperature between 60 and 100 ° C, preferably between 70 and 90 ° C, for 12 to 24 hours to avoid the presence of humidity; in fact, the prepolymer formed is reactive in the presence of water, it is therefore preferable to dry the multifunctional compounds, and the polyols / diols before mixing. It can then be introduced as is into the reaction medium if the reaction takes place in bulk, or in the form of a solution if the reaction takes place in solvent under an inert atmosphere (argon / nitrogen).
- the polyisocyanate used can be taken under a flow of inert gas (nitrogen / argon) and added as such to the reaction medium if the reaction takes place in bulk or in the form of a solution if the reaction takes place in solvent, for example with stirring between 25 ° C (room temperature) and 120 ° C, advantageously between 40 and 90 ° C, such as for example at 70 ° C.
- the reaction product can be recovered hot under a flow of inert gas
- At least one monoisocyanate is used as a constituent of the composition as such, apart from that integrated into the prepolymer, it can advantageously have a role of chain limiter for modulating the module.
- It can be any suitable monoisocyanate, in particular aliphatic or aromatic isocyanates which are liquid under reaction conditions, such as, for example, butyl isocyanate.
- diisocyanate When at least one diisocyanate is used as a constituent of the composition as such, apart from that integrated into the prepolymer, it can be aromatic, aliphatic or cycloaliphatic, preferably aliphatic or cycloaliphatic.
- the diisocyanate may have the formula OCN-R-NCO, wherein Ri is an alkylene Ci-C15 linear or branched, mono- or poly-cyclic or acyclic, an alkylidene to C 4, or a C6-Cio -arylene optionally carrying at least one substituent chosen from C1-C6-linear or branched alkyl, C1-C2_alkylene, or a halogen atom.
- a polyisocyanate When a polyisocyanate is used as a constituent as such, it can have an average functionality greater than or equal to 2, for example 3 or 4.
- the di- or polyisocyanate is aliphatic and without aromatic units, and liquid at temperature ambient (about 25 ° C).
- the di- or poly-isocyanate is used between 1 and 60% by mass, for example between 5 and 50% by mass.
- the amount of di- or poly-isocyanate can be adjusted, according to the general knowledge of a person skilled in the art, and in the light of the present invention, to modify the properties of the hydrogel of the invention.
- the di- and polyisocyanates can be chosen from methylene dicyclohexyl diisocyanate, hexamethylene diisocyanate, isophorone diisocyanate, toluene-2,4-di-isocyanate, toluene-2,6-diisocyanate, mixtures of toluene 2,4 and 2,6-diisocyanates, ethylene diisocyanate, ethylidene diisocyanate, propylene-1, 2-diisocyanate, cyclohexylene-1, 2-diisocyanate, cyclohexylene-1, 4-diisocyanate, m- phenylene diisocyanate, 4,4'-biphenylene diisocyanate, 3,3'-dichloro- 4,4'-biphenylene diisocyanate, 1, 4-tetramethylene diisocyanate, 1, 10-decamethylene diisocyanate, cumene-2,4
- the macropolyol used in the invention has a crosslinking role.
- Oligoglycerol is understood to mean, within the meaning of the present invention, a glycerol polymer, the average degree of polymerization of which is less than or equal to 7, for example from 2 to 7.
- the degree of polymerization and the degree of average polymerization can be determined by any method known to those skilled in the art, for example by exclusion chromatography steric and 1 H and 13 C NMR.
- Oligoglycerol can be functionalized.
- the oligoglycerol can be linear, branched or hyperbranched.
- Oligoglycerols are commercially available, for example diglycerol (INCI Diglycerin), polyglycerol-3 (Polyglycerin-3) and polyglycerol-4 (Polyglycerin-4), distributed by the company Inovyn.
- Glycerol dendrimer is understood to mean, within the meaning of the present invention, a molecule consisting of 1 or more dendrons emanating from a single constituent unit.
- a dendron being a molecule having a single free valence or focal unit, comprising exclusively repeating constitutive units of a dendritic and terminal nature, in which each path from the free valence (focal unit) to any of the terminal units comprises the same number of constituent repeating units.
- the molar mass of a dendrimer can be between 500 and 100,000 g / mol, for example between 500 and 6,000 g / mol, or between 800 and 4,000 g / mol, having degrees of polymerization (DP) between 5 and 70; dispersities between 1 and 1, 8 and degrees of branching (or degrees of branching (DB)) between 0.9 and 1, possibly prepared as described in the article J. Am. Chem. Soc. 2000, 122, 2954-2955 ([3]).
- DP degrees of polymerization
- DB degrees of branching
- the polyglycerol can have dispersities of between 1.1 and 5, for example between 1.1 and 1.8. They may, for example, be linear, branched or hyperbranched polyglycerols.
- Linear oligoglycerol or polyglycerol is understood to mean, within the meaning of the present invention, a glycerol polymer comprising a chain of glycerol units linked together by ether bonds established essentially between the primary alcohol functions of glycerol.
- the degree of branching can be determined using the conventional methods of the state of the art, for example by 13 C NMR Inverse Gated.
- “Hyperbranched” polyglycerol or oligoglycerol is understood to mean, within the meaning of the present invention, a substance composed of hyperbranched macromolecules which consist of chains joined by a common heart and of a substantial fraction of branched glycerol repeating units and of terminal units glycerol but also comprising linear glycerol repeating units such that the degree of branching DB defined by H. Frey is between 0.3 and 0.8, more frequently between 0.3 and 0.7 (A. Fradet and J. Kahovec ([2])).
- the hyperbranched polyglycerol can have a molar mass of between 500 and 100,000 g / mol, preferably between 500 and 10,000 g / mol, and can have degrees of polymerization (DP) included between 7 and 1350, dispersities between 1, 1 and 5, for example between 1, 1 and 1, 8 and degrees of branching or degrees of branching (DB) between 0.3 and 0.7.
- Polyglycerols with branching degrees equal to 1 can be used and prepared for example according to the method described in the article
- the glycerol polymer may alternatively be a mixture of hyperbranched polyglycerols and linear, branched or hyperbranched oligoglycerols, for example of degree of polymerization between 2 and 7, optionally functionalized.
- the polyglycerol ratio hyperbranched on linear, branched or hyperbranched oligoglycerols is 100: 0 to 80:20 mass.
- the macropolyol can be obtained by any method known to those skilled in the art, for example by ring-opening polymerization of glycidol or of glycerol carbonate, using one or more mono or polyfunctional initiators such as, for example, monoalcohols such as methanol, butanol, phenol and its derivatives, benzyl alcohol, 1 -dodecanol, 1 -tetradecanol, 1 -hexadecanol, glycol monoalkyl ethers such as glycols monoethyl ethers or polyethylene glycols monoalkyl ethers, such as for example the polyethylene glycol monoethyl ether, diols such as ethylene glycol, diethylene glycol, triethylene glycol, polyethylene glycols, 1, 2-propanediol,
- monoalcohols such as methanol, butanol, phenol and its derivatives
- benzyl alcohol 1 -dodecanol
- triols or polyols having a functionality greater than 3 such as glycerol, diglycerol, triglycerol, tetraglycerol, trimethylolethane, trimethylolpropane, di-trimethylolpropane, sorbitol, but also hydroxyl-terminated oligomers such as ethoxylated pentaerythritols and propoxylated pentaerythrithols, ethoxylated trimethylolpropanes and propoxylated trimethylolpropanes, ethoxylated or propoxylated glycerol reaction, opening ring of oxide ethylene and / or propylene oxide on pentaerythritol, trimethylolpropane and glycerol.
- the degree of ethoxylation is usually between 0.1 and 10 units of ethylene oxide per OH function.
- the molar mass is generally between 100 and 1000 g / mol. It is preferable to use ethoxylated trimethylolpropanes, ethoxylated glycerols and ethoxylated pentaerythritol.
- “Star” molecules having at least three arms comprising polyoxypropylene-polyoxyethylene blocks can also be used, such as ethoxylated or propoxylated sorbitols and saccharides, degraded starch, polyvinyl alcohol.
- Initiators such as water, methylamine, ethylamine, propylamine, butylamine, dodecylamine, myristylamine, palmitylamine, stearylamine, aniline, benzylamine, ortho or para can also be used.
- the initiator used in the context of the preparation of the macropolyol can then be partially deprotonated with an appropriate agent chosen from alkali metals and their hydrides, alkoxides, hydroxides.
- an appropriate agent chosen from alkali metals and their hydrides, alkoxides, hydroxides.
- metals or metal alkoxides such as potassium methanolate (MeOK) are used.
- Potassium carbonate can also be used as a catalyst for the polymerization of glycerol carbonate in particular.
- alcoholates organometallics, metal salts, tertiary amines.
- alkali metal alcoholates such as sodium methylate, potassium isopropylate or potassium methanolate can be used.
- tetraalkylammonium hydroxides such as tetramethylammonium hydroxides
- alkali metal hydroxides such as sodium hydroxide and potassium hydroxide
- metal salts such as organic and / or inorganic compounds based on iron, lead, bismuth, zinc and / or tin at oxidation levels of conventional metals for example: iron chloride (ll), iron chloride (lll), bismuth (lll) 2-ethylhexanoate, bismuth (lll) octoate, bismuth (lll) neodecanoate, zinc chloride, zinc 2 -ethylcaproate, tin (II) octoate, tin ethylcaproate (II), tin palmitate (II), tin dibutyldilaurate (IV) (DBTL), tin dibutyldichloride (IV) or lead octaote
- alkali metal salts of long chain fatty acids having 10 to 20 carbon atoms and optionally pendant OH groups Tertiary amines such as triethylamine, tributylamine, dimethylbenzylamine, diethylbenzylamine, pyridine, methylpyridine, dicyclohexylmethylamine, dimethylcyclohexylamine, N, N, N ', N'-tetramethyldiaminodiethyl ether can also be used.
- dimethylaminopropyl) -urea N- methyl- and N-ethylmorpholine, N-cocomorpholine, N- cyclohexylmorpholine, N, N, N ', N'-tetramethylethylenediamine, N, N, N', N 'tetramethyl- 1, 3 -butanediamine, N, N, N', N '-tetramethyl -1, 6 - hexanediamine, pentamethyldiethylenetriamine, N-methylpiperidine, N-dimethylaminoethylpiperidine, N, N'-dimethylpiperazine, N-methyl-N'-dimethylaminopiperazine, 1,8-diazabicyclo (5.4.0) undec-7-ene ( DBU), TBD (1,5,7-triazabicyclo [4.4.0] dec-5-ene), 1,2 dimethylimidazole, 2-methylimidazole, N, N-dimethylin
- dialkylaminoalkyl hexahydrotriazines such as N, N ', N "tris- (dimethylaminopropyl) -s-hexahydrotriazine and / or (dimethylaminoethyl) ether.
- the macropolyol synthesis reaction can take place in the presence of a solvent, for example an aliphatic, cyclo aliphatic or aromatic solvent such as decaline, toluene or xylene, or an ether such as glyme, diglyme or triglyme).
- a solvent for example an aliphatic, cyclo aliphatic or aromatic solvent such as decaline, toluene or xylene, or an ether such as glyme, diglyme or triglyme.
- the reaction can take place in bulk, for example between 40 and 140 ° C, preferably at 95 ° C in semi-batch, advantageously corresponding to a slow and controlled addition of the glycidol monomer and optionally its comonomers to the reaction medium.
- the macropolyol can also be obtained by co-polymerization with other functionalized monomers which can incorporate at least one group chosen from fluorines, silanes, siloxanes, and halogens such as propylene oxide, oxide of ethylene, butylene oxide, epichlorohydrin, vinyloxirane, glycidyl allyl ether, glycidyl methacrylate, isopropyl glycidyl ether, phenylglycidyl ether, 2-ethylhexyl glycidyl ether, hexadecyl glycidyl ether, naphthyl glycidyl ether, t-butyldimethylsilyl- (R) - (-) - glycidyl ether, benzyl glycidyl ether, epoxy-3-phenoxypropane, biphenyl glycidyl ether, propargyl glycidyl
- the crosslinkable composition can comprise, in addition to the polyol used in the preparation of the prepolymer, optionally at least one polyol, for example 1, or 2, or 3, or 4 polyols, the polyol possibly comprising at least two hydroxyl groups.
- the polyol can be used as chain extender / extender or co-crosslinker.
- the polyol can be of the poly (ethylene glycol) (PEG) or poly (propylene glycol) (PPG) type, di- or multifunctional, depending on the type of initiator used. It can in particular be prepared by ring-opening polymerization of ethylene oxide and / or propylene oxide from a polyol or a monofunctional alcohol selected from ethylene glycol, diethylene glycol, triethylene glycol, trimethylolpropane, glycerol, pentaerythritol, xylitol, sorbitol, ethanol, butanol, phenol, 1,2-propylene glycol, dipropylene glycol, and 1,4 butane diol and l 'hexamethylene glycol.
- PEG poly (ethylene glycol)
- PPG poly (propylene glycol)
- the polyols or monofunctional alcohols can alternatively be molecular polyols of the ethylene glycol, diethylene glycol, triethylene glycol, trimethylolpropane, glycerol, pentaerythritol, xylitol, sorbitol, ethanol, butanol, phenol, 1, 2-propylene glycol, dipropylene glycol, polypropylene glycol type. , 1, 4 butane diol, or hexamethylene glycol.
- the polyol can be obtained by any method known to a person skilled in the art, for example by using one or more mono or polyfunctional initiators such as, for example, those indicated above for the macropolyol.
- the polyol can alternatively be a diol incorporating silane or siloxane groups such as the hydroxyl-terminated dihydroxytelechelic polydimethylsiloxane, but also block copolymers of the diblock or triblock types of polydimethylsiloxanes and of polycaprolactone, of polydimethylsiloxane and of polyoxyethylene polypropylene .
- the polyols used may alternatively be copolymers, linear or branched, for example based on PEG / PPG Pluronic ® or as Tetronic ®.
- the copolymers can be as described in document EP2496620 ([1]).
- the composition of the invention may optionally comprise at least one monofunctional alcohol, a mixture of monofunctional alcohols or a monohydroxylated polyether based on ethylene glycol and / or ethylene glycol / propylene glycol, or a mixture of monohydroxylated polyether and d monofunctional alcohols. It may be at least one, for example 2, or 3, or 4 monohydroxylated polyethers or monofunctional alcohols, preferably 1 or 2.
- ethylene glycol and / or ethylene glycol / propylene glycol a polyether consisting essentially of ethylene glycol monomer units.
- they can make it possible to limit and / or control the crosslinking rate, and thus control the density of the network, and consequently all the properties ranging from mechanical properties to maximum water contents, etc. They can be included in the composition of the invention up to 0 to 20% by mass.
- the composition of the invention may optionally comprise at least one catalyst or a combination of catalysts.
- the catalyst can make it possible to catalyze the polymerization or to accelerate the reaction rate.
- the catalyst can be chosen from organometallic compounds based on bismuth, tin, titanium or organobismuth titanium, for example bismuth (III) tricarboxylates, bismuth-2-ethylhexanoate, bismuth neodecanoate, dibutyl laurate, tin octoate (Sn (oct) 2), and / or an orthotitanate such as tetra-n-butylorthotitanate, iron tetrachloride, tertiary amines such as triethylamine, tributylamine or any other commonly used trialkyleamine as well as nucleophilic molecules such as 1, 4-diazabicyclo [2.2.2] octane (DABCO), triazabicyclo
- composition of the invention may optionally comprise at least one additive, for example chosen from: - antioxidants, such as BHA (butyl hydroxyl anisole), BHT (butylated hydroxytoluene) or ascorbic acid, beta-carotene, glutathione, lipoic acid, retinol, santowhite, uric acid, l 'ubiquinol, vitamin E.
- - antioxidants such as BHA (butyl hydroxyl anisole), BHT (butylated hydroxytoluene) or ascorbic acid, beta-carotene, glutathione, lipoic acid, retinol, santowhite, uric acid, l 'ubiquinol, vitamin E.
- An antioxidant can be present, in the composition of the invention, between 0.02 and 2% by mass, for example between 0.05 and 1% by mass, preferably 0.05 and 0.5% mass of reagents.
- oxygen permeability promoters such as, for example, fluorinated and silylated co-monomers used in the synthesis of polyglycerol, or fluorinated or silylated polyols used during the formation of the hydrogel,
- plasticizers or viscosity modifiers of the formulation before crosslinking such as for example glycols or polyols miscible with polyglycerol and making it possible to reduce its viscosity
- PEGDME poly (ethylene glycol) dimethyl ether
- - lubricants such as hyaluronic acid, or PEG
- At least one opacifying agent can be used, at a concentration of
- the at least one additive can represent between 0 and 20% of the total mass of the composition of the invention. It may for example be between 1 and 18%, or between 2 and 15%, or between 5 and 10% of the total mass of the composition of the invention.
- the crosslinked or crosslinkable composition comprises an agent chosen from UV filters, UV absorbers and blue light filters, it may for example be any commercially available UV filter, such as AEHB (acryloxyethoxyhydroxybenzophenone), and / or any UV absorbent having a high absorption in the UV-A range (320-380 nm) but relatively transparent beyond 380 nm.
- AEHB acryloxyethoxyhydroxybenzophenone
- UV absorbent e.g., acryloxyethoxyhydroxybenzophenone
- the UV absorbent is present in the composition of the invention, it is between 0.5 and 1.5% by mass of the reagents, for example at 1% by mass.
- Anti-UV agents can be incorporated into the hydrogel in the post-polymerization hydration step.
- the crosslinkable or crosslinked composition of the invention can comprise, in percentage by mass relative to the total weight of the composition:
- polyol for example from 1 to 45%, or from 5 to 40%
- diisocyanate from 1 to 60% of diisocyanate, triisocyanate or polyisocyanate, for example from 1 to 50%, or from 5 to 40%,
- polyurethane prepolymer for example from 5 to 50%, or from 10 to 50%, or from 20 to 40%
- the crosslinked composition of the invention comprises:
- At least one diisocyanate at least one oligoglycerol and at least one hyperbranched polyglycerol, or
- At least one diisocyanate at least one diisocyanate, at least one urethane prepolymer terminated multifunctional isocyanate comprising from 1 to 16 isocyanate functionality (s) on average, the average functionality being greater than strictly 1, product of the reaction of a diisocyanate with a polyol or an alcohol monofunctional comprising 1 to 8 hydroxyl groups, at least one oligoglycerol and at least one hyperbranched polyglycerol, or
- At least one diisocyanate at least one diisocyanate, at least one multifunctional isocyanate terminated urethane prepolymer comprising from 1 to 16 isocyanate functional groups on average, product of the reaction of a diisocyanate with a polyol comprising 1 to 8 hydroxyl groups, and at least one hyperbranched polyglycerol or
- Another subject of the invention relates to a hydrogel capable of being obtained by absorption of water / by swelling with water of a crosslinked composition according to the invention, or alternatively, when an aprotic solvent is present in the crosslinked composition, by exchange of the aprotic solvent with an excess of water.
- the hydrogels contain, after hydration, a certain amount of water, which can be determined by means of successive mass measurements after hydration (for example after 12 h, by distilled water or solutions having the physicochemical characteristics of the tear fluid) and after drying (for example for 12 hours, at 90 ° C).
- the water content also called “water content EWC”, in%) can be expressed according to equation 1 below:
- the hydrogel has a theoretical permeability allowing the applications mentioned below.
- a theoretical permeability (Dk) in Barrer of hydrogel can be estimated:
- the mechanical properties of the hydrogel can be determined by any method known to those skilled in the art, for example by a traction machine.
- the samples tested preferably all have similar dimensions (for example 3 mm wide by 1 cm long), and the thickness can be measured with each new analysis.
- the analysis can be launched with a preload of 0.1 N for a deformation speed equivalent to 20 mm / min.
- the surface properties of the materials designed can also be analyzed using various techniques known to those skilled in the art, such as, for example, optical microscopy, atomic force microscopy, measurements of wettability, coefficient of friction and surface roughness.
- Another subject of the invention relates to a process for the preparation of a crosslinked composition according to the invention, consisting in reacting, in the presence or in the absence of aprotic solvent, preferably in the absence of solvent:
- G optionally at least agent chosen from UV filters, UV absorbents and blue light filters as defined above.
- the aprotic solvent when used, is selected from polar aprotic solvents such as dimethylformamide, acetonitrile, dimethylacetamide and dimethyl sulfoxide, or a mixture of at least two of these.
- the process of the invention can be carried out under ambient conditions and / or under anhydrous conditions and under an inert atmosphere.
- atmosphere and ambient conditions is meant, within the meaning of the present invention, non-anhydrous conditions, a non-inert atmosphere, at approximately 25 ° C ( ⁇ 3 ° C).
- the ingredients must be liquid either because of a higher temperature if necessary, obtained for example by heating, or because of the presence of solvent, or because of the use of compounds of low molecular weights.
- the temperature of the process of the invention can be between 10 ° C and 90 ° C, preferably between 25 ° C and 80 ° C.
- the duration of the process of the invention may be such that it allows the total consumption of the isocyanate functions, either by reaction with the hydroxyl functions of the polyols and macropolyols when the reaction is carried out in an anhydrous medium, or with the hydroxyl functions of the polyols, macropolyols and water if working in the presence of water in limited and controlled quantities.
- thermosetting formulations can be produced according to the means known to those skilled in the art, for example by mixing with a spatula, using a mechanical stirrer, or all mixers used by those skilled in the art for thermosetting formulations with several components, such as for example with a speed mixer, with a two-component static mixer or using ultrasound.
- the reaction mixture is relatively anhydrous, that is to say that it contains little or no water, and in any case not as reactants.
- the absence of urea groups or bonds in the composition of the gel is an advantage.
- the reaction mixture may contain a controlled amount of water.
- this embodiment can make it possible to control certain properties, such as better water retention or the module.
- the mixture obtained can be reacted under an inert atmosphere in order to form a three-dimensional crosslinked polyurethane network, which can be molded by various methods known to those skilled in the art.
- the step of molding the composition during crosslinking can make it possible to give the composition the desired shape. These methods can be, for example, casting by centrifugation (spin-casting), or casting by casting (cast-molding).
- the molding step can take place under an inert atmosphere, in particular Argon / Nitrogen, or under a controlled humidity atmosphere, that is to say either under an inert and therefore dry atmosphere, or under controlled humidity leading to the controlled formation of urea functions .
- This step can be carried out for example at a temperature between 10 and 140 ° C, preferably between room temperature (ie about 25 ° C) and 90 ° C, preferably between 40 and 80 ° C.
- the films, once in the molds, are placed in an oven between 40 and 100 ° C, preferably between 50 and 80 ° C for 1 to 20 hours, preferably 4 to 10 hours, for example 8 hours.
- Annealing can also be applied, between 60 and 150 ° C, preferably between 70 and 100 ° C, for 2 min to 2 h, for example 20 min to 1 hr. Characterization of the network by IR analysis can make it possible to confirm the complete disappearance of isocyanate groups in the medium.
- the method may further comprise a step of hydration / swelling of the crosslinked composition with an excess of water, in order to form a hydrogel.
- the method can also comprise a step of exchanging the aprotic solvent with an excess of water, advantageously to replace the aprotic solvent used during the preparation of the mixtures.
- the method can also comprise a step chosen from molding, lathe cutting, casting, two-component mixture and speedmixer.
- the article may be a medical device, such as a contact or intraocular lens, a patch, a dressing or a medical implant for tissue engineering and / or delivery of active principles, or a superabsorbent material.
- a medical device such as a contact or intraocular lens, a patch, a dressing or a medical implant for tissue engineering and / or delivery of active principles, or a superabsorbent material.
- Another subject of the invention relates to the use of a composition or of a hydrogel according to the invention for the manufacture of a medical device, such as a contact or intraocular lens, a patch, a dressing or a medical implant for tissue engineering and / or delivery of active ingredients or a superabsorbent material.
- a medical device such as a contact or intraocular lens, a patch, a dressing or a medical implant for tissue engineering and / or delivery of active ingredients or a superabsorbent material.
- compositions or of a hydrogel according to the invention as a vector for a compound of interest chosen from therapeutic active principles, vitamins, nutrients, agents decontaminants or lubricants.
- anti-inflammatories for example non-steroidal anti-inflammatory drugs (NSAIDs) or corticosteroids, antibiotics, alone or in combination, anti-glaucomatous drugs, alone or in combination, anti-allergic drugs, alone or in combination, drugs for treating myopia progression such as, for example, anticholinergics, drugs for treating presbyopia , and more generally the treatments of ocular pathologies including the eye in its entirety and its annexes: eyelids, oculomotor muscle, lacrimal glands and its secretions, and orbits.
- these may be vitamins and nutrients such as antioxidants, agents which protect the metabolism of the eye and its annexes, lens decontaminating agents such as bacterial antibiotics, antifungals, anti-antibiotics and antivirals.
- the substances can be introduced after polymerization or before.
- Another subject of the invention relates to the use of a crosslinked composition as defined above, capable of forming a hydrogel polymer by swelling in the presence of a necessary and sufficient quantity of water, for the manufacture of a medical device, such as a contact or intraocular lens, a patch, a dressing or a medical implant for tissue engineering and / or delivery of active principles and / or surgery.
- the crosslinked composition also has applications in the so-called “domestic” fields, for example as a perfume diffuser, in cosmetics, in the field of diapers, and in fields relating to the preservation of the environment, such as with depolluting.
- the crosslinked composition may be obtained from the reaction in the presence or absence of an aprotic solvent, under anhydrous conditions and under an inert atmosphere, or under an atmosphere and ambient conditions:
- oligoglycerol at least either an oligoglycerol, a dendrimer, a linear, branched or hyperbranched polyglycerol which may be functionalized, comprising at least 8 hydroxyl groups with at least one di or polyisocyanate; optionally in the presence of at least one catalyst and / or optionally at least one additive chosen from antioxidants, promoters of oxygen permeability, plasticizers, humectants, lubricants, viscosity modifiers, compatibilizers , coloring agents, opacifying agents, antimicrobial agents, modifiers of modifiers, therapeutic agents and anti-bacterial biofilm agents; and / or optionally at least one agent chosen from UV filters, UV absorbents and blue light filters; or
- oligoglycerol at least either an oligoglycerol, a dendrimer, a linear, branched or hyperbranched polyglycerol, optionally functionalized, comprising at least 10 hydroxyl groups, with at least one di or polyisocyanate, and at least one polyol comprising 2 to 6, preferably 2 to 3 hydroxyl groups; optionally in the presence of at least one catalyst and / or optionally at least one additive chosen from antioxidants, module modifiers, oxygen permeability modulators, plasticizers, humidifiers, lubricants, viscosity, compatibilizers, coloring agents, clouding agents, anti-microbial agents, therapeutic agents and bacterial anti-biofilm agents; and / or optionally at least one agent chosen from UV filters, UV absorbents and blue light filters.
- PEG200, PEG300, PEG400 and PEG600 represent poly (ethylene glycol) compounds with an average molar mass of 200, 300, 400 and 600 g. mol 1 .
- HPG represents the hyperbranched macropolyol
- TMP notation refers to trimethylolpropane
- PDMS500 is used to represent the dihydroxylated telechelic polydimethylsiloxane of average molar mass 500 g. mol 1
- the PRP notation ADI-PEGx describes the composition of the prepolymer synthesized with ADI coding for the nature of the aliphatic diisocyanate used and PEGx coding for the PEG used and x its average molar mass
- TMPEO is used to designate the polyethyltrimethylolpropane ethoxylate. Its composition is specified via the notation xEO / yOH
- the polarographic method is based on a conventional electrochemistry assembly comprising 3 electrodes: working electrode (WE) in gold, counter electrode (CE) in platinum and reference electrode (RE) Ag / AgCI, immersed in a solution of electrolyte (KCI) at 0.1 M.
- WE working electrode
- CE counter electrode
- RE reference electrode
- KCI electrolyte
- the potentiostat used for these analyzes is a DropSens pSTAT
- the dimensions of the hydrated samples are normalized to 3mm in width for 10mm between the jaws, the thickness is measured at each new analysis.
- the preload is 0.1 N for a deformation speed equivalent to 20 mm / min, all at room temperature. All samples were evaluated at least 3 times and averages on the data calculated by the WinTest software were calculated.
- the materials designed are also analyzed using different techniques, including wettability (a), surface roughness by atomic force microscopy (AFM) (b), friction coefficients in the tribometer (c)
- the surface properties were also determined by measurements of the contact angles of water on the materials using the drop on solid mode on a KRUSS DSA 100 device. Briefly, one drop
- AFM analyzes were carried out on Dimension EDGE equipment from Bruker. The analyzes were carried out in Tapping mode. 3N / m force levers. with SÎ3N 4 tips (Bruker, Ref: RFESP) were used to generate the phase, amplitude and height images. The height photographs allowed us to access the R (max), Ra and Rq, defined respectively as the maximum height identified on the surface of the sample; the average surface roughness and the standard deviation of the average plane surface. The samples were analyzed over lengths of 20, 10, 5 and 1 ⁇ m to generate scanned areas of 400, 100, 25 and 1 ⁇ m 2 . The data were processed with Nanoscope Analysis software, and compared to commercial lenses. (c) Measuring friction coefficients with a tribometer
- the measurements were carried out on a CSM instrument tribometer. A 10 mm diameter steel ball was used at a speed of 1 cm / sec, with a normal force of 0.5 N. 3 analyzes were carried out on each sample and an average of 3 was calculated. The sample is in the form of a film, and the analysis takes place in a liquid medium (water or physiological saline) at room temperature.
- a liquid medium water or physiological saline
- UV transmittance analyzes The transmittance was determined using a spectrophotometer
- a lens is placed in a tank containing a saline solution.
- the cell is placed in the sample compartment.
- a tank containing only the saline solution is placed in the reference compartment.
- the water content and swelling rate are determined by measuring the weight of the gel in the dry state and in the hydrated state using equations 1 and 2.
- Hydrated gels are weighed individually after removing excess water from the surface. The gels are then dried in an oven at 80 ° C for a minimum of 6 hours and weighed again. This process is repeated 3 times, and the EWC value is the average of 3.
- TMP trimethylolpropane
- MeOK potassium methanolate at 25% in methanol
- the flask is then placed on a rotary evaporator at 70 ° C until the TMP is completely dissolved, then the rotary evaporator is placed under vacuum to remove the methanol.
- the three-necked flask containing the reagents is then placed in an oil bath thermostatically controlled at 95 ° C., surmounted by a stirring blade (300 rpm) under nitrogen flow. Once the reaction medium is at temperature, the glycidol (80 eq, 50 g, 0.675 mol) is added with a peristaltic addition pump at the rate of 3.6 ml / h.
- the macropolyol obtained is characterized by steric exclusion chromatography (CES) and 1 H NMR spectroscopy
- Example 2 The same protocol as that of Example 1 was used to produce a macropolyol with an average molar mass of 4000 g. mol 1 by changing the proportions of the reactants according to table 1.
- Example 2 The same protocol as that of Example 1 was used to produce a macropolyol with an average molar mass of 2000 g. mol 1 by changing the proportions of the reactants according to table 1.
- Example 2 The same protocol as that of Example 1 was used to produce a macropolyol with an average molar mass of 1000 g. mol 1 by changing the proportions of the reactants according to table 1.
- the macropolyol is introduced with one or more aliphatic diisocyanates in a suitable bottle.
- the bottle is closed and introduced into a Speed Mixer for 3 min at 2500 rpm.
- the bottle is then placed in a thermostatically controlled oven for 2 to 24 hours depending on the nature of the isocyanates used.
- the compositions of the gel formulations are detailed in Table 2. The amounts are expressed in percentages by mass.
- the water contents (EWC) are given in table 3.
- Table 2 Composition of solvent-free gels based on macropolyol and aliphatic diisocyanates
- the macropolyol and the polyol are introduced with one or more aliphatic diisocyanates in a suitable bottle.
- the bottle is closed and introduced into a Speed Mixer for 3 min at 2500 rpm.
- the bottle is then placed in a thermostatically controlled oven for 2 to 24 hours at 80 ° C depending on the nature of the isocyanates used.
- the compositions of the gel formulations are detailed in Table 4. The amounts are expressed in percentages by mass. The water contents are reported in Table 5.
- Table 4 Composition of solvent-free gels based on macropolyol, polyols and aliphatic diisocyanates
- the macropolyol (and the polyol if necessary) are introduced into a bottle, named A, with 75% of the volume of total solvent, and homogenized in the speedmixer mixer for 2 min at 2500 rpm.
- a second bottle, called B is then prepared by mixing one or more aliphatic diisocyanates with 25% of the total DMF.
- the bottle is closed in turn and introduced into the Speed Mixer for 1 min at 2500 rpm.
- the content of B is poured into A, then homogenized.
- the closed bottle is left for 5 min at room temperature before being placed in the thermostatically controlled oven at 80 ° C. for 2 to 24 hours depending on the nature of the isocyanates used.
- the compositions of the gel formulations are detailed in Table 4.
- the amounts of reagents are expressed in percentages by mass without taking the solvent into account.
- the amount of solvent used is such that it generally represents 75 to 80% wt of the total formulation, which amounts to having a 75/25 solvent / total proportion of the reactants.
- the water content of some of these gels is shown in Table 6. Table 6: Composition of gels prepared with solvent from macropolyol, polyols and aliphatic diisocyanates
- Table 7 Composition of gels with solvent based on macropolyol, polyols and aliphatic diisocyanates
- the PEG (4.993g, 17 mmol) is introduced into a three-necked 250 ml flask, surmounted by a semi-circular stirring blade.
- the device is placed under an inert atmosphere and placed in an oil bath thermostatically controlled at 50 ° C., with stirring (200 rpm).
- the diisocyanate in this case isophorone diisocyanate (IPDI) (7.4 g, 7.1 mL, 33 mmol) is removed under a stream of nitrogen and added to the reaction medium. The reaction is thus left for 2 h until the complete functionalization of the OH groups at the end of the PEG chain in urethane function.
- the product is characterized by 1 H NMR, CES and IR and then stored in an airtight bottle at 5 ° C.
- CDCIs d 4.96 +4.70 (s, 2H, NH.; 4.18 (m, NH (CO) 0-CH 2 ); 3.62 (m, (CH 2 -CH 2 -0) n ; 2.92 ( m, CH-NCO and / or CH 2 -NCO); 1.77 + 0.92 (m,
- CDCIs 4.93 (s, NH); 4.22 (s, CH 2 -0- (CO)); 3.66 (m, (CH 2 - CH 2 -0)); 3.31 (t, CH 2 -NCO); 3.16 (t, CH 2 -NH- (CO)); 1.62 + 1.52 + 1.43 (m,
- CDCIs d 4.96 +4.70 (s, 2H, NH.; 4.18 (m, NH (CO) 0-CH 2 ); 3.62 (m, (CH 2 -CH 2 -0) n ; 2.92 ( m, CH-NCO and / or CH 2 -NCO); 1.77 + 0.92 (m, CH cycle) 0.99 (s, CH 3 * 3)
- CDCIs d 4.93 (s, 2H, NH); 4.22 (s, CH 2 -0- (CO)); 3.66 (m,
- Example 13 Formation of a PEG 2 oo-h-MDI prepolymer The same protocol was used to produce a prepolymer between PEG200 and 4.4'-methylenebis (cycloisocyanate) by changing the proportions of the reactants according to Table 8.
- CDCIs 4.93 (s, NH); 4.22 (s, CH 2 -0- (C0)); 3.66 (m, (CH 2 - CH 2 -0)); 3.31 (t, CH 2 -NCO); 3.16 (t, CH 2 -NH- (CO)); 1.62 + 1.52 + 1.43 (m,
- the macropolyol is introduced with one or more aliphatic diisocyanate urethane prepolymers and optionally with an aliphatic diisocyanate.
- the bottle is closed and introduced into the Speed Mixer for 3 min at 2500 rpm.
- the bottle is then placed in a thermostatically controlled oven for 2 to 24 hours depending on the nature of the isocyanates used.
- the compositions of the gel formulations are detailed in Table 9. The amounts are expressed in percentage by mass. The water content of some of these gels is shown in Table 10. TABLE 9 Composition of the gels from macropolyol and urethane prepolymer diisocyanates and optionally aliphatic diisocyanates without solvent
- the macropolyol and the polyol are introduced with one or more urethane prepolymers of aliphatic diisocyanates and optionally with an aliphatic diisocyanate.
- the bottle is closed and introduced into the Speed Mixer for 3 min at 2500 rpm.
- the bottle is then placed in a thermostatically controlled oven for 2 to 24 hours at 80 ° C depending on the nature of the isocyanates used.
- the compositions of the gel formulations are detailed in Table 11. The amounts are expressed in percentage by mass.
- the water contents (EWC) are given in table 12.
- Table 11 Composition of gels from macropolyol, polyols, urethane prepolymer diisocyanates and optionally aliphatic diisocyanates without solvent
- the macropolyol (and the polyol if necessary) are introduced into a bottle, named A, with 75% of the volume of total solvent, and homogenized in the speedmixer mixer for 2 min at 2500 rpm.
- a second bottle, called B is then prepared by mixing one or more aliphatic diisocyanates with 25% of the total DMF.
- the bottle is closed in turn and introduced into the Speed Mixer for 1 min at 2500 rpm.
- the content of B is poured into A, then homogenized.
- the closed bottle is left for 5 min at room temperature before being placed in an oven thermostatically controlled at 80 ° C. for 2 to 24 hours depending on the nature of the isocyanates used.
- the compositions of the gel formulations are detailed in Table 13.
- Table 14 Composition of gels with solvent based on macropolyol, polyols and urethane prepolymers aliphatic diisocyanates
- Example 18 Specific properties of the gels: surface roughness The formulated and hydrated gels were also studied by AFM spectroscopy to determine the surface roughness. The properties of one of the gels formed are listed in Table 16.
- a) total height of the profile height between the deepest valley and the highest peak on the evaluation length
- Formulated and hydrated gels have also been studied in wettability to determine the contact angle between the formulated lens and a drop of water.
- the contact angles obtained for some of these gels are listed in Table 17 and are the result of an average of 10 analyzes.
- Table 17 Surface properties of a wettability hydrogel (water angle in °)
- Table 19 Water retention properties, comparison time required for a water loss of 10% (t 10%) and for a water loss of 50% (t 50%)
- HEMA Ref HEMA gel
- Example 21 specific properties of gels: permeability to oxygen
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AU2021200986A1 (en) * | 2020-02-21 | 2021-09-09 | Nouryon Chemicals International B.V. | Biodegradable polyesters for water-resistant oil-in-water suncare formulations |
AU2021200987A1 (en) * | 2020-02-21 | 2021-09-09 | Nouryon Chemicals International B.V. | Biodegradable polyesters for water-resistant anhydrous suncare formulations |
CN112281494B (zh) * | 2020-10-21 | 2022-03-11 | 江苏海洋大学 | 一种封闭型聚氨酯预聚物在制备纤维素基功能敷料中的应用 |
CN117903407A (zh) * | 2023-12-01 | 2024-04-19 | 广州海豚新材料有限公司 | 一种亲水性两性离子有机硅改性聚氨酯及其制备方法与应用 |
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US6822068B2 (en) * | 1998-12-22 | 2004-11-23 | Bayer Aktiengesellschaft | Method for producing highly-branched glycidol-based polyols |
EP1657267A1 (fr) * | 2004-11-10 | 2006-05-17 | INSA (Institut National des Sciences Appliqées) | Composition polyisocyanate/polyol à deux composants et son utilisation pour la fabrication de produits coulés, en particulier des lentilles ophthalmiques |
US20120316256A1 (en) | 2009-11-02 | 2012-12-13 | Abdul Rashid | Polymers for Contact Lenses |
PT2539388E (pt) * | 2010-02-25 | 2015-10-28 | Dow Global Technologies Llc | Resumo |
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2018
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2019
- 2019-09-30 US US17/282,121 patent/US20210369911A1/en not_active Abandoned
- 2019-09-30 WO PCT/FR2019/052302 patent/WO2020070422A1/fr unknown
- 2019-09-30 EP EP19795284.9A patent/EP3861042A1/fr not_active Withdrawn
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WO2020070422A1 (fr) | 2020-04-09 |
FR3086664B1 (fr) | 2021-10-15 |
US20210369911A1 (en) | 2021-12-02 |
FR3086664A1 (fr) | 2020-04-03 |
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