GB1567426A - Method of making microcapsules - Google Patents
Method of making microcapsules Download PDFInfo
- Publication number
- GB1567426A GB1567426A GB285478A GB285478A GB1567426A GB 1567426 A GB1567426 A GB 1567426A GB 285478 A GB285478 A GB 285478A GB 285478 A GB285478 A GB 285478A GB 1567426 A GB1567426 A GB 1567426A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gelatin
- viscosity
- millipoise
- oil
- parts
- 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.)
- Expired
Links
- 239000003094 microcapsule Substances 0.000 title claims description 38
- 238000004519 manufacturing process Methods 0.000 title claims description 14
- 239000002245 particle Substances 0.000 claims description 108
- 229920000159 gelatin Polymers 0.000 claims description 60
- 235000019322 gelatine Nutrition 0.000 claims description 60
- 108010010803 Gelatin Proteins 0.000 claims description 57
- 239000008273 gelatin Substances 0.000 claims description 57
- 235000011852 gelatine desserts Nutrition 0.000 claims description 57
- 239000000084 colloidal system Substances 0.000 claims description 36
- 239000000463 material Substances 0.000 claims description 31
- 239000000243 solution Substances 0.000 claims description 31
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims description 29
- 239000007864 aqueous solution Substances 0.000 claims description 29
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims description 29
- 238000000034 method Methods 0.000 claims description 23
- 238000005354 coacervation Methods 0.000 claims description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- 239000000725 suspension Substances 0.000 claims description 16
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 13
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims description 13
- 238000001816 cooling Methods 0.000 claims description 13
- 238000004220 aggregation Methods 0.000 claims description 9
- 230000002776 aggregation Effects 0.000 claims description 9
- 238000001879 gelation Methods 0.000 claims description 8
- 230000015572 biosynthetic process Effects 0.000 claims description 7
- 238000010790 dilution Methods 0.000 claims description 4
- 239000012895 dilution Substances 0.000 claims description 4
- 229920006318 anionic polymer Polymers 0.000 claims description 3
- 239000002775 capsule Substances 0.000 description 76
- 239000003921 oil Substances 0.000 description 46
- 235000019198 oils Nutrition 0.000 description 46
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 33
- 238000013019 agitation Methods 0.000 description 22
- 238000009826 distribution Methods 0.000 description 20
- 239000000203 mixture Substances 0.000 description 20
- 239000000370 acceptor Substances 0.000 description 11
- 239000000839 emulsion Substances 0.000 description 11
- 235000011121 sodium hydroxide Nutrition 0.000 description 11
- 239000002253 acid Substances 0.000 description 9
- 239000008199 coating composition Substances 0.000 description 8
- 230000001804 emulsifying effect Effects 0.000 description 8
- 229920002472 Starch Polymers 0.000 description 7
- 239000003350 kerosene Substances 0.000 description 7
- 239000008107 starch Substances 0.000 description 7
- 235000019698 starch Nutrition 0.000 description 7
- LIZLYZVAYZQVPG-UHFFFAOYSA-N (3-bromo-2-fluorophenyl)methanol Chemical compound OCC1=CC=CC(Br)=C1F LIZLYZVAYZQVPG-UHFFFAOYSA-N 0.000 description 6
- PMPBFICDXLLSRM-UHFFFAOYSA-N 1-propan-2-ylnaphthalene Chemical compound C1=CC=C2C(C(C)C)=CC=CC2=C1 PMPBFICDXLLSRM-UHFFFAOYSA-N 0.000 description 6
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- ZKURGBYDCVNWKH-UHFFFAOYSA-N [3,7-bis(dimethylamino)phenothiazin-10-yl]-phenylmethanone Chemical compound C12=CC=C(N(C)C)C=C2SC2=CC(N(C)C)=CC=C2N1C(=O)C1=CC=CC=C1 ZKURGBYDCVNWKH-UHFFFAOYSA-N 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- SXRSQZLOMIGNAQ-UHFFFAOYSA-N Glutaraldehyde Chemical compound O=CCCCC=O SXRSQZLOMIGNAQ-UHFFFAOYSA-N 0.000 description 5
- -1 acetylmethylamino Chemical group 0.000 description 5
- 229920002678 cellulose Polymers 0.000 description 5
- 239000001913 cellulose Substances 0.000 description 5
- 229920001577 copolymer Polymers 0.000 description 5
- FWQHNLCNFPYBCA-UHFFFAOYSA-N fluoran Chemical compound C12=CC=CC=C2OC2=CC=CC=C2C11OC(=O)C2=CC=CC=C21 FWQHNLCNFPYBCA-UHFFFAOYSA-N 0.000 description 5
- 244000215068 Acacia senegal Species 0.000 description 4
- 229920000084 Gum arabic Polymers 0.000 description 4
- 235000010489 acacia gum Nutrition 0.000 description 4
- 239000000205 acacia gum Substances 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 239000006185 dispersion Substances 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- YGSDEFSMJLZEOE-UHFFFAOYSA-N salicylic acid Chemical compound OC(=O)C1=CC=CC=C1O YGSDEFSMJLZEOE-UHFFFAOYSA-N 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 229910052570 clay Inorganic materials 0.000 description 3
- 239000004927 clay Substances 0.000 description 3
- 238000006266 etherification reaction Methods 0.000 description 3
- 239000000499 gel Substances 0.000 description 3
- 230000010354 integration Effects 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 description 2
- WNZQDUSMALZDQF-UHFFFAOYSA-N 2-benzofuran-1(3H)-one Chemical compound C1=CC=C2C(=O)OCC2=C1 WNZQDUSMALZDQF-UHFFFAOYSA-N 0.000 description 2
- PYSRRFNXTXNWCD-UHFFFAOYSA-N 3-(2-phenylethenyl)furan-2,5-dione Chemical compound O=C1OC(=O)C(C=CC=2C=CC=CC=2)=C1 PYSRRFNXTXNWCD-UHFFFAOYSA-N 0.000 description 2
- 239000001828 Gelatine Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229920000147 Styrene maleic anhydride Polymers 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 125000003118 aryl group Chemical group 0.000 description 2
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 2
- 229920003064 carboxyethyl cellulose Polymers 0.000 description 2
- 229920003090 carboxymethyl hydroxyethyl cellulose Polymers 0.000 description 2
- 235000010418 carrageenan Nutrition 0.000 description 2
- 239000000679 carrageenan Substances 0.000 description 2
- 229920001525 carrageenan Polymers 0.000 description 2
- 229940113118 carrageenan Drugs 0.000 description 2
- 229920006184 cellulose methylcellulose Polymers 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 150000003951 lactams Chemical class 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- FJKROLUGYXJWQN-UHFFFAOYSA-N papa-hydroxy-benzoic acid Natural products OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 description 2
- 239000005011 phenolic resin Substances 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 229960004889 salicylic acid Drugs 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 235000010413 sodium alginate Nutrition 0.000 description 2
- 239000000661 sodium alginate Substances 0.000 description 2
- 229940005550 sodium alginate Drugs 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- UHVMMEOXYDMDKI-JKYCWFKZSA-L zinc;1-(5-cyanopyridin-2-yl)-3-[(1s,2s)-2-(6-fluoro-2-hydroxy-3-propanoylphenyl)cyclopropyl]urea;diacetate Chemical compound [Zn+2].CC([O-])=O.CC([O-])=O.CCC(=O)C1=CC=C(F)C([C@H]2[C@H](C2)NC(=O)NC=2N=CC(=CC=2)C#N)=C1O UHVMMEOXYDMDKI-JKYCWFKZSA-L 0.000 description 2
- YJTKZCDBKVTVBY-UHFFFAOYSA-N 1,3-Diphenylbenzene Chemical group C1=CC=CC=C1C1=CC=CC(C=2C=CC=CC=2)=C1 YJTKZCDBKVTVBY-UHFFFAOYSA-N 0.000 description 1
- SJJCQDRGABAVBB-UHFFFAOYSA-N 1-hydroxy-2-naphthoic acid Chemical compound C1=CC=CC2=C(O)C(C(=O)O)=CC=C21 SJJCQDRGABAVBB-UHFFFAOYSA-N 0.000 description 1
- GSCLSACFHWKTQU-UHFFFAOYSA-N 2'-chloro-6'-(diethylamino)spiro[2-benzofuran-3,9'-xanthene]-1-one Chemical compound O1C(=O)C2=CC=CC=C2C21C1=CC(Cl)=CC=C1OC1=CC(N(CC)CC)=CC=C21 GSCLSACFHWKTQU-UHFFFAOYSA-N 0.000 description 1
- ZWQBZEFLFSFEOS-UHFFFAOYSA-N 3,5-ditert-butyl-2-hydroxybenzoic acid Chemical compound CC(C)(C)C1=CC(C(O)=O)=C(O)C(C(C)(C)C)=C1 ZWQBZEFLFSFEOS-UHFFFAOYSA-N 0.000 description 1
- VBAULOQKBXQZMF-UHFFFAOYSA-N 3-[2-(dimethylamino)phenyl]-3-(2-methyl-1h-indol-3-yl)-2-benzofuran-1-one Chemical compound CN(C)C1=CC=CC=C1C1(C=2C3=CC=CC=C3NC=2C)C2=CC=CC=C2C(=O)O1 VBAULOQKBXQZMF-UHFFFAOYSA-N 0.000 description 1
- MQJTWPAGXWPEKU-UHFFFAOYSA-N 3-[4-(dimethylamino)phenyl]-3-(1,2-dimethylindol-3-yl)-2-benzofuran-1-one Chemical compound C1=CC(N(C)C)=CC=C1C1(C=2C3=CC=CC=C3N(C)C=2C)C2=CC=CC=C2C(=O)O1 MQJTWPAGXWPEKU-UHFFFAOYSA-N 0.000 description 1
- CAUZVEFCEILLCX-UHFFFAOYSA-N 5-(dimethylamino)-3-(9-ethylcarbazol-3-yl)-3h-2-benzofuran-1-one Chemical compound O1C(=O)C2=CC=C(N(C)C)C=C2C1C1=CC=C2N(CC)C3=CC=CC=C3C2=C1 CAUZVEFCEILLCX-UHFFFAOYSA-N 0.000 description 1
- XUFBVJQHCCCPNM-UHFFFAOYSA-N 6'-(diethylamino)-1',3'-dimethylspiro[2-benzofuran-3,9'-xanthene]-1-one Chemical compound O1C(=O)C2=CC=CC=C2C21C1=C(C)C=C(C)C=C1OC1=CC(N(CC)CC)=CC=C21 XUFBVJQHCCCPNM-UHFFFAOYSA-N 0.000 description 1
- 102000009027 Albumins Human genes 0.000 description 1
- 108010088751 Albumins Proteins 0.000 description 1
- 244000105624 Arachis hypogaea Species 0.000 description 1
- 235000010777 Arachis hypogaea Nutrition 0.000 description 1
- 239000005711 Benzoic acid Substances 0.000 description 1
- 235000008692 Carum bulbocastanum Nutrition 0.000 description 1
- IPAJDLMMTVZVPP-UHFFFAOYSA-N Crystal violet lactone Chemical compound C1=CC(N(C)C)=CC=C1C1(C=2C=CC(=CC=2)N(C)C)C2=CC=C(N(C)C)C=C2C(=O)O1 IPAJDLMMTVZVPP-UHFFFAOYSA-N 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
- 239000005662 Paraffin oil Substances 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- BCKXLBQYZLBQEK-KVVVOXFISA-M Sodium oleate Chemical compound [Na+].CCCCCCCC\C=C/CCCCCCCC([O-])=O BCKXLBQYZLBQEK-KVVVOXFISA-M 0.000 description 1
- 241000112708 Vates Species 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- 229910021502 aluminium hydroxide Inorganic materials 0.000 description 1
- 239000010775 animal oil Substances 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 229940054021 anxiolytics diphenylmethane derivative Drugs 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 229960000892 attapulgite Drugs 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 235000010233 benzoic acid Nutrition 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 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
- 239000004359 castor oil Substances 0.000 description 1
- 235000019438 castor oil Nutrition 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 239000012612 commercial material Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000002285 corn oil Substances 0.000 description 1
- 235000005687 corn oil Nutrition 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N diphenyl Chemical group C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 1
- CZZYITDELCSZES-UHFFFAOYSA-N diphenylmethane Chemical class C=1C=CC=CC=1CC1=CC=CC=C1 CZZYITDELCSZES-UHFFFAOYSA-N 0.000 description 1
- 235000021323 fish oil Nutrition 0.000 description 1
- NVVZQXQBYZPMLJ-UHFFFAOYSA-N formaldehyde;naphthalene-1-sulfonic acid Chemical compound O=C.C1=CC=C2C(S(=O)(=O)O)=CC=CC2=C1 NVVZQXQBYZPMLJ-UHFFFAOYSA-N 0.000 description 1
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 description 1
- 239000008240 homogeneous mixture Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000010699 lard oil Substances 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 235000021388 linseed oil Nutrition 0.000 description 1
- 239000000944 linseed oil Substances 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 150000002790 naphthalenes Chemical class 0.000 description 1
- 239000010466 nut oil Substances 0.000 description 1
- 229910052625 palygorskite Inorganic materials 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- YGSDEFSMJLZEOE-UHFFFAOYSA-M salicylate Chemical compound OC1=CC=CC=C1C([O-])=O YGSDEFSMJLZEOE-UHFFFAOYSA-M 0.000 description 1
- 229960001860 salicylate Drugs 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000003549 soybean oil Substances 0.000 description 1
- 235000012424 soybean oil Nutrition 0.000 description 1
- 150000003413 spiro compounds Chemical class 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 150000004897 thiazines Chemical class 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
- 239000008158 vegetable oil Substances 0.000 description 1
- 125000001834 xanthenyl group Chemical class C1=CC=CC=2OC3=CC=CC=C3C(C12)* 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/124—Duplicating or marking methods; Sheet materials for use therein using pressure to make a masked colour visible, e.g. to make a coloured support visible, to create an opaque or transparent pattern, or to form colour by uniting colour-forming components
- B41M5/165—Duplicating or marking methods; Sheet materials for use therein using pressure to make a masked colour visible, e.g. to make a coloured support visible, to create an opaque or transparent pattern, or to form colour by uniting colour-forming components characterised by the use of microcapsules; Special solvents for incorporating the ingredients
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
- B01J13/02—Making microcapsules or microballoons
- B01J13/06—Making microcapsules or microballoons by phase separation
- B01J13/10—Complex coacervation, i.e. interaction of oppositely charged particles
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Manufacturing Of Micro-Capsules (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP52009022A JPS5833011B2 (ja) | 1977-01-28 | 1977-01-28 | マイクロカプセルの製造方法 |
| JP9892477A JPS5432178A (en) | 1977-08-17 | 1977-08-17 | Manufacture of microcapsule |
| JP14201177A JPS5474282A (en) | 1977-11-25 | 1977-11-25 | Manufacture of microcapsule |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1567426A true GB1567426A (en) | 1980-05-14 |
Family
ID=27278294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB285478A Expired GB1567426A (en) | 1977-01-28 | 1978-01-24 | Method of making microcapsules |
Country Status (5)
| Country | Link |
|---|---|
| AU (1) | AU514205B2 (enrdf_load_html_response) |
| DE (1) | DE2803687C2 (enrdf_load_html_response) |
| ES (1) | ES466986A1 (enrdf_load_html_response) |
| FR (1) | FR2378561A1 (enrdf_load_html_response) |
| GB (1) | GB1567426A (enrdf_load_html_response) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3424115C2 (de) * | 1984-06-29 | 1986-10-16 | Papierfabrik August Koehler AG, 7602 Oberkirch | Kontinuierlich geführtes Koazervierungsverfahren zur Herstellung einer wäßrigen Dispersion ölhaltiger Mikrokapseln |
| FR2608456B1 (fr) * | 1986-12-18 | 1993-06-18 | Mero Rousselot Satia | Microcapsules a base de gelatine et de polysaccharides et leur procede d'obtention |
| CA2009047C (en) * | 1989-02-27 | 1999-06-08 | Daniel Wayne Michael | Microcapsules containing hydrophobic liquid core |
| KR100541753B1 (ko) * | 1999-07-27 | 2006-01-10 | 가부시키가이샤 시세이도 | 마이크로캡슐 및 그 제조방법 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1122495B (de) * | 1953-06-30 | 1962-01-25 | Ncr Co | Verfahren zur Herstellung mikroskopischer, OEl enthaltender Kapseln |
| BE585460A (enrdf_load_html_response) * | 1959-01-02 | 1900-01-01 | ||
| FR1283004A (fr) * | 1960-03-10 | 1962-01-27 | Ncr Co | Produit capsulaire et son procédé de fabrication |
| US3129103A (en) * | 1960-05-16 | 1964-04-14 | Ncr Co | Ink coating for pressure sensitive transfer record sheet |
| JPS5034515B1 (enrdf_load_html_response) * | 1970-08-06 | 1975-11-08 | ||
| BE788762A (fr) * | 1971-09-13 | 1973-01-02 | Fuji Photo Film Co Ltd | Procede de production de microcapsules |
| JPS5814253B2 (ja) * | 1974-04-10 | 1983-03-18 | カンザキセイシ カブシキガイシヤ | ビシヨウカプセルノ セイゾウホウホウ |
-
1978
- 1978-01-24 GB GB285478A patent/GB1567426A/en not_active Expired
- 1978-01-27 AU AU32819/78A patent/AU514205B2/en not_active Expired
- 1978-01-27 DE DE19782803687 patent/DE2803687C2/de not_active Expired
- 1978-01-27 FR FR7802375A patent/FR2378561A1/fr active Granted
- 1978-01-28 ES ES466986A patent/ES466986A1/es not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| AU3281978A (en) | 1979-08-02 |
| FR2378561A1 (fr) | 1978-08-25 |
| FR2378561B1 (enrdf_load_html_response) | 1984-03-16 |
| DE2803687A1 (de) | 1978-08-03 |
| ES466986A1 (es) | 1978-10-16 |
| AU514205B2 (en) | 1981-01-29 |
| DE2803687C2 (de) | 1986-05-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |