DK168854B1 - Filter omfattende et materiale fremkommet ved frysetørring, fremgangsmåde til dets fremstilling og anvendelse, især inden for farmacien - Google Patents
Filter omfattende et materiale fremkommet ved frysetørring, fremgangsmåde til dets fremstilling og anvendelse, især inden for farmacien Download PDFInfo
- Publication number
- DK168854B1 DK168854B1 DK379088A DK379088A DK168854B1 DK 168854 B1 DK168854 B1 DK 168854B1 DK 379088 A DK379088 A DK 379088A DK 379088 A DK379088 A DK 379088A DK 168854 B1 DK168854 B1 DK 168854B1
- Authority
- DK
- Denmark
- Prior art keywords
- active ingredient
- filter
- microparticles
- drying
- filter element
- Prior art date
Links
- 239000000463 material Substances 0.000 title claims description 70
- 238000004108 freeze drying Methods 0.000 title claims description 51
- 238000000034 method Methods 0.000 title claims description 24
- 238000002360 preparation method Methods 0.000 title claims description 15
- 239000011859 microparticle Substances 0.000 claims description 88
- 239000002609 medium Substances 0.000 claims description 84
- 239000004480 active ingredient Substances 0.000 claims description 77
- 239000002245 particle Substances 0.000 claims description 64
- 238000007906 compression Methods 0.000 claims description 56
- 230000006835 compression Effects 0.000 claims description 56
- 239000007788 liquid Substances 0.000 claims description 43
- 239000000443 aerosol Substances 0.000 claims description 39
- 239000002904 solvent Substances 0.000 claims description 38
- 238000001914 filtration Methods 0.000 claims description 35
- 238000007710 freezing Methods 0.000 claims description 34
- 230000008014 freezing Effects 0.000 claims description 34
- 239000007787 solid Substances 0.000 claims description 33
- 239000000243 solution Substances 0.000 claims description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 30
- 238000001035 drying Methods 0.000 claims description 25
- 238000000576 coating method Methods 0.000 claims description 23
- 239000000203 mixture Substances 0.000 claims description 22
- 239000011159 matrix material Substances 0.000 claims description 21
- 239000000047 product Substances 0.000 claims description 21
- 239000011248 coating agent Substances 0.000 claims description 20
- 238000005336 cracking Methods 0.000 claims description 20
- 238000001704 evaporation Methods 0.000 claims description 19
- 230000008020 evaporation Effects 0.000 claims description 19
- 238000004519 manufacturing process Methods 0.000 claims description 18
- 239000000126 substance Substances 0.000 claims description 17
- 239000003595 mist Substances 0.000 claims description 16
- 239000011343 solid material Substances 0.000 claims description 16
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 claims description 14
- 230000015572 biosynthetic process Effects 0.000 claims description 13
- 239000003960 organic solvent Substances 0.000 claims description 10
- 239000007864 aqueous solution Substances 0.000 claims description 9
- 238000003801 milling Methods 0.000 claims description 9
- 239000000725 suspension Substances 0.000 claims description 9
- 229920000036 polyvinylpyrrolidone Polymers 0.000 claims description 8
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 claims description 8
- 239000012736 aqueous medium Substances 0.000 claims description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 7
- 239000008263 liquid aerosol Substances 0.000 claims description 7
- 239000001267 polyvinylpyrrolidone Substances 0.000 claims description 7
- HTTJABKRGRZYRN-UHFFFAOYSA-N Heparin Chemical compound OC1C(NC(=O)C)C(O)OC(COS(O)(=O)=O)C1OC1C(OS(O)(=O)=O)C(O)C(OC2C(C(OS(O)(=O)=O)C(OC3C(C(O)C(O)C(O3)C(O)=O)OS(O)(=O)=O)C(CO)O2)NS(O)(=O)=O)C(C(O)=O)O1 HTTJABKRGRZYRN-UHFFFAOYSA-N 0.000 claims description 5
- 229930006000 Sucrose Natural products 0.000 claims description 5
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 claims description 5
- 238000004458 analytical method Methods 0.000 claims description 5
- 229960002897 heparin Drugs 0.000 claims description 5
- 229920000669 heparin Polymers 0.000 claims description 5
- 239000005720 sucrose Substances 0.000 claims description 5
- 238000007865 diluting Methods 0.000 claims description 4
- 238000000227 grinding Methods 0.000 claims description 4
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 claims description 4
- 239000003049 inorganic solvent Substances 0.000 claims description 4
- 229910001867 inorganic solvent Inorganic materials 0.000 claims description 4
- 229920002307 Dextran Polymers 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 3
- 239000004014 plasticizer Substances 0.000 claims description 3
- 239000012265 solid product Substances 0.000 claims description 3
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 2
- 239000000194 fatty acid Substances 0.000 claims description 2
- 229930195729 fatty acid Natural products 0.000 claims description 2
- 150000004665 fatty acids Chemical class 0.000 claims description 2
- 125000005456 glyceride group Chemical group 0.000 claims description 2
- 239000012535 impurity Substances 0.000 claims description 2
- 238000004898 kneading Methods 0.000 claims description 2
- 239000011148 porous material Substances 0.000 claims description 2
- 238000000746 purification Methods 0.000 claims description 2
- 230000003381 solubilizing effect Effects 0.000 claims description 2
- 239000012530 fluid Substances 0.000 claims 1
- 239000002195 soluble material Substances 0.000 claims 1
- 230000001225 therapeutic effect Effects 0.000 claims 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 18
- HYIMSNHJOBLJNT-UHFFFAOYSA-N nifedipine Chemical compound COC(=O)C1=C(C)NC(C)=C(C(=O)OC)C1C1=CC=CC=C1[N+]([O-])=O HYIMSNHJOBLJNT-UHFFFAOYSA-N 0.000 description 14
- 229960001597 nifedipine Drugs 0.000 description 14
- 229910052757 nitrogen Inorganic materials 0.000 description 9
- 230000000717 retained effect Effects 0.000 description 9
- 239000007789 gas Substances 0.000 description 8
- 239000000835 fiber Substances 0.000 description 7
- 239000000945 filler Substances 0.000 description 7
- 210000004379 membrane Anatomy 0.000 description 6
- 239000012528 membrane Substances 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- FZWBNHMXJMCXLU-UHFFFAOYSA-N 2,3,4,5-tetrahydroxy-6-[3,4,5-trihydroxy-6-[[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxymethyl]oxan-2-yl]oxyhexanal Chemical compound OC1C(O)C(O)C(CO)OC1OCC1C(O)C(O)C(O)C(OCC(O)C(O)C(O)C(O)C=O)O1 FZWBNHMXJMCXLU-UHFFFAOYSA-N 0.000 description 5
- -1 alkyl cyanoacrylate Chemical compound 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 5
- 229940119743 dextran 70 Drugs 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 229920002678 cellulose Polymers 0.000 description 4
- 239000003153 chemical reaction reagent Substances 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 238000001179 sorption measurement Methods 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 239000001913 cellulose Substances 0.000 description 3
- 229920002301 cellulose acetate Polymers 0.000 description 3
- 238000000265 homogenisation Methods 0.000 description 3
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 description 3
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 description 3
- UFVKGYZPFZQRLF-UHFFFAOYSA-N hydroxypropyl methyl cellulose Chemical compound OC1C(O)C(OC)OC(CO)C1OC1C(O)C(O)C(OC2C(C(O)C(OC3C(C(O)C(O)C(CO)O3)O)C(CO)O2)O)C(CO)O1 UFVKGYZPFZQRLF-UHFFFAOYSA-N 0.000 description 3
- 230000014759 maintenance of location Effects 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- ZDPACSAHMZADFZ-UHFFFAOYSA-N 1-[3-(2,4,6-Trimethoxybenzoyl)propyl]pyrrolidinium chloride Chemical compound [Cl-].COC1=CC(OC)=CC(OC)=C1C(=O)CCC[NH+]1CCCC1 ZDPACSAHMZADFZ-UHFFFAOYSA-N 0.000 description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 230000005653 Brownian motion process Effects 0.000 description 2
- ZZSNKZQZMQGXPY-UHFFFAOYSA-N Ethyl cellulose Chemical compound CCOCC1OC(OC)C(OCC)C(OCC)C1OC1C(O)C(O)C(OC)C(CO)O1 ZZSNKZQZMQGXPY-UHFFFAOYSA-N 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 229920002125 Sokalan® Polymers 0.000 description 2
- 229940088623 biologically active substance Drugs 0.000 description 2
- 238000005537 brownian motion Methods 0.000 description 2
- 229960002113 buflomedil hydrochloride Drugs 0.000 description 2
- 239000012159 carrier gas Substances 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 239000002537 cosmetic Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003085 diluting agent Substances 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 210000001035 gastrointestinal tract Anatomy 0.000 description 2
- 150000002334 glycols Chemical class 0.000 description 2
- 239000001307 helium Substances 0.000 description 2
- 229910052734 helium Inorganic materials 0.000 description 2
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 239000011256 inorganic filler Substances 0.000 description 2
- 229910003475 inorganic filler Inorganic materials 0.000 description 2
- 239000004816 latex Substances 0.000 description 2
- 229920000126 latex Polymers 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 239000012766 organic filler Substances 0.000 description 2
- 229920000058 polyacrylate Polymers 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 235000008476 powdered milk Nutrition 0.000 description 2
- 238000001878 scanning electron micrograph Methods 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 238000002560 therapeutic procedure Methods 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- GUBGYTABKSRVRQ-XLOQQCSPSA-N Alpha-Lactose Chemical compound O[C@@H]1[C@@H](O)[C@@H](O)[C@@H](CO)O[C@H]1O[C@@H]1[C@@H](CO)O[C@H](O)[C@H](O)[C@H]1O GUBGYTABKSRVRQ-XLOQQCSPSA-N 0.000 description 1
- 229920001651 Cyanoacrylate Polymers 0.000 description 1
- 206010013911 Dysgeusia Diseases 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 1
- 239000001856 Ethyl cellulose Substances 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- GUBGYTABKSRVRQ-QKKXKWKRSA-N Lactose Natural products OC[C@H]1O[C@@H](O[C@H]2[C@H](O)[C@@H](O)C(O)O[C@@H]2CO)[C@H](O)[C@@H](O)[C@H]1O GUBGYTABKSRVRQ-QKKXKWKRSA-N 0.000 description 1
- 239000002033 PVDF binder Substances 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- 229920002845 Poly(methacrylic acid) Polymers 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 241000220317 Rosa Species 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 239000008365 aqueous carrier Substances 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 235000019658 bitter taste Nutrition 0.000 description 1
- 210000001124 body fluid Anatomy 0.000 description 1
- 239000010839 body fluid Substances 0.000 description 1
- 239000005018 casein Substances 0.000 description 1
- BECPQYXYKAMYBN-UHFFFAOYSA-N casein, tech. Chemical compound NCCCCC(C(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(CC(C)C)N=C(O)C(CCC(O)=O)N=C(O)C(CC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(C(C)O)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=N)N=C(O)C(CCC(O)=O)N=C(O)C(CCC(O)=O)N=C(O)C(COP(O)(O)=O)N=C(O)C(CCC(O)=N)N=C(O)C(N)CC1=CC=CC=C1 BECPQYXYKAMYBN-UHFFFAOYSA-N 0.000 description 1
- 235000021240 caseins Nutrition 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 210000000170 cell membrane Anatomy 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005264 electron capture Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007515 enzymatic degradation Effects 0.000 description 1
- 229920001249 ethyl cellulose Polymers 0.000 description 1
- 235000019325 ethyl cellulose Nutrition 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000003925 fat Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 231100000086 high toxicity Toxicity 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 239000012784 inorganic fiber Substances 0.000 description 1
- 239000010954 inorganic particle Substances 0.000 description 1
- 210000004347 intestinal mucosa Anatomy 0.000 description 1
- 239000008101 lactose Substances 0.000 description 1
- 239000000787 lecithin Substances 0.000 description 1
- 235000010445 lecithin Nutrition 0.000 description 1
- 239000002502 liposome Substances 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000005375 photometry Methods 0.000 description 1
- 230000008884 pinocytosis Effects 0.000 description 1
- 229920000771 poly (alkylcyanoacrylate) Polymers 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 229920000193 polymethacrylate Polymers 0.000 description 1
- 229920001184 polypeptide Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 235000019422 polyvinyl alcohol Nutrition 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 102000004196 processed proteins & peptides Human genes 0.000 description 1
- 108090000765 processed proteins & peptides Proteins 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 235000018102 proteins Nutrition 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000013557 residual solvent Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 210000002345 respiratory system Anatomy 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 238000005063 solubilization Methods 0.000 description 1
- 230000007928 solubilization Effects 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 210000002784 stomach Anatomy 0.000 description 1
- 238000000859 sublimation Methods 0.000 description 1
- 230000008022 sublimation Effects 0.000 description 1
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical class S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 1
- 229910052815 sulfur oxide Inorganic materials 0.000 description 1
- 238000010345 tape casting Methods 0.000 description 1
- 229940124597 therapeutic agent Drugs 0.000 description 1
- 238000002061 vacuum sublimation Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/02—Loose filtering material, e.g. loose fibres
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/20—Pills, tablets, discs, rods
- A61K9/2095—Tabletting processes; Dosage units made by direct compression of powders or specially processed granules, by eliminating solvents, by melt-extrusion, by injection molding, by 3D printing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
-
- 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
- Y10S55/00—Gas separation
- Y10S55/05—Methods of making filter
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Pharmacology & Pharmacy (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Filtering Materials (AREA)
- Medicinal Preparation (AREA)
- Medicines Containing Material From Animals Or Micro-Organisms (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Cosmetics (AREA)
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8709696A FR2617734B1 (fr) | 1987-07-08 | 1987-07-08 | Filtre comprenant un materiau obtenu par cryodessication, procede de preparation et utilisation |
| FR8709696 | 1987-07-08 | ||
| FR8711468A FR2619281B2 (fr) | 1987-07-08 | 1987-08-12 | Forme galenique comprenant des microparticules et son procede de preparation |
| FR8711468 | 1987-08-12 | ||
| FR8712277 | 1987-09-04 | ||
| FR8712277A FR2620026B2 (fr) | 1987-07-08 | 1987-09-04 | Forme galenique comprenant des microparticules et son procede de preparation |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DK379088D0 DK379088D0 (da) | 1988-07-07 |
| DK379088A DK379088A (da) | 1989-01-09 |
| DK168854B1 true DK168854B1 (da) | 1994-06-27 |
Family
ID=27251483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK379088A DK168854B1 (da) | 1987-07-08 | 1988-07-07 | Filter omfattende et materiale fremkommet ved frysetørring, fremgangsmåde til dets fremstilling og anvendelse, især inden for farmacien |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US4883507A (xx) |
| EP (1) | EP0298864B1 (xx) |
| JP (1) | JPS6430615A (xx) |
| CN (1) | CN1012135B (xx) |
| AU (1) | AU608017B2 (xx) |
| CA (1) | CA1337684C (xx) |
| DE (1) | DE3872070T2 (xx) |
| DK (1) | DK168854B1 (xx) |
| ES (1) | ES2034316T3 (xx) |
| GR (1) | GR3005700T3 (xx) |
| IE (1) | IE61907B1 (xx) |
| IL (1) | IL86892A (xx) |
Families Citing this family (33)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IL86892A (en) * | 1987-07-08 | 1993-04-04 | Lafon Labor | Filter comprising a material obtained by freeze-drying, its preparation and its use, especially in pharmacy |
| US5108618A (en) * | 1990-10-30 | 1992-04-28 | Nobuo Hirasawa | Method of and apparatus for modifying fuel |
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-
1988
- 1988-06-28 IL IL86892A patent/IL86892A/xx not_active IP Right Cessation
- 1988-06-29 AU AU18475/88A patent/AU608017B2/en not_active Ceased
- 1988-06-29 US US07/213,308 patent/US4883507A/en not_active Expired - Fee Related
- 1988-07-06 EP EP88401764A patent/EP0298864B1/fr not_active Expired - Lifetime
- 1988-07-06 DE DE8888401764T patent/DE3872070T2/de not_active Expired - Fee Related
- 1988-07-06 ES ES198888401764T patent/ES2034316T3/es not_active Expired - Lifetime
- 1988-07-07 DK DK379088A patent/DK168854B1/da not_active IP Right Cessation
- 1988-07-07 JP JP63170753A patent/JPS6430615A/ja active Granted
- 1988-07-07 IE IE206188A patent/IE61907B1/en not_active IP Right Cessation
- 1988-07-07 CA CA000571352A patent/CA1337684C/en not_active Expired - Fee Related
- 1988-07-07 CN CN88104214.5A patent/CN1012135B/zh not_active Expired
-
1992
- 1992-09-14 GR GR920402033T patent/GR3005700T3/el unknown
Also Published As
| Publication number | Publication date |
|---|---|
| US4883507A (en) | 1989-11-28 |
| DK379088A (da) | 1989-01-09 |
| DK379088D0 (da) | 1988-07-07 |
| IE61907B1 (en) | 1994-11-30 |
| IE882061L (en) | 1989-01-08 |
| GR3005700T3 (xx) | 1993-06-07 |
| CN1031028A (zh) | 1989-02-15 |
| IL86892A0 (en) | 1988-11-30 |
| AU1847588A (en) | 1989-01-12 |
| DE3872070D1 (de) | 1992-07-23 |
| JPS6430615A (en) | 1989-02-01 |
| CA1337684C (en) | 1995-12-05 |
| ES2034316T3 (es) | 1993-04-01 |
| IL86892A (en) | 1993-04-04 |
| EP0298864B1 (fr) | 1992-06-17 |
| JPH0573445B2 (xx) | 1993-10-14 |
| DE3872070T2 (de) | 1993-01-21 |
| CN1012135B (zh) | 1991-03-27 |
| AU608017B2 (en) | 1991-03-21 |
| EP0298864A1 (fr) | 1989-01-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| B1 | Patent granted (law 1993) | ||
| PBP | Patent lapsed |