NO124764B - - Google Patents
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- Publication number
- NO124764B NO124764B NO6942A NO4269A NO124764B NO 124764 B NO124764 B NO 124764B NO 6942 A NO6942 A NO 6942A NO 4269 A NO4269 A NO 4269A NO 124764 B NO124764 B NO 124764B
- Authority
- NO
- Norway
- Prior art keywords
- liquid
- capsule
- capsules
- solution
- polyvinyl alcohol
- Prior art date
Links
- 239000002775 capsule Substances 0.000 claims description 85
- 239000000463 material Substances 0.000 claims description 49
- -1 alkylene glycol cyclic borate ester Chemical class 0.000 claims description 44
- 239000007788 liquid Substances 0.000 claims description 42
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 41
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 41
- 239000000243 solution Substances 0.000 claims description 30
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 21
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 20
- 238000004519 manufacturing process Methods 0.000 claims description 16
- 238000005191 phase separation Methods 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 14
- 239000002245 particle Substances 0.000 claims description 12
- 239000007864 aqueous solution Substances 0.000 claims description 10
- 239000011162 core material Substances 0.000 claims description 9
- 239000003795 chemical substances by application Substances 0.000 claims description 8
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims description 7
- 125000000217 alkyl group Chemical group 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 6
- 239000004327 boric acid Substances 0.000 claims description 5
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 claims description 4
- 125000004432 carbon atom Chemical group C* 0.000 claims description 4
- 230000001939 inductive effect Effects 0.000 claims description 3
- 239000007795 chemical reaction product Substances 0.000 claims description 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 2
- UUUGYDOQQLOJQA-UHFFFAOYSA-L vanadyl sulfate Chemical compound [V+2]=O.[O-]S([O-])(=O)=O UUUGYDOQQLOJQA-UHFFFAOYSA-L 0.000 claims description 2
- 229940041260 vanadyl sulfate Drugs 0.000 claims description 2
- 229910000352 vanadyl sulfate Inorganic materials 0.000 claims description 2
- 229920000642 polymer Polymers 0.000 claims 1
- 239000000126 substance Substances 0.000 claims 1
- 239000007791 liquid phase Substances 0.000 description 19
- 238000002360 preparation method Methods 0.000 description 15
- 238000005538 encapsulation Methods 0.000 description 10
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 9
- 239000000047 product Substances 0.000 description 9
- 238000003756 stirring Methods 0.000 description 9
- 239000012071 phase Substances 0.000 description 8
- 229910052938 sodium sulfate Inorganic materials 0.000 description 8
- 235000011152 sodium sulphate Nutrition 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 7
- 238000006460 hydrolysis reaction Methods 0.000 description 7
- 239000000203 mixture Substances 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- 235000010338 boric acid Nutrition 0.000 description 6
- 229960002645 boric acid Drugs 0.000 description 6
- 229910052796 boron Inorganic materials 0.000 description 6
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 5
- 239000000470 constituent Substances 0.000 description 5
- 230000007062 hydrolysis Effects 0.000 description 5
- IMROMDMJAWUWLK-UHFFFAOYSA-N Ethenol Chemical group OC=C IMROMDMJAWUWLK-UHFFFAOYSA-N 0.000 description 4
- 229920000084 Gum arabic Polymers 0.000 description 4
- 239000000205 acacia gum Substances 0.000 description 4
- 235000010489 acacia gum Nutrition 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- IUYHQGMDSZOPDZ-UHFFFAOYSA-N 2,3,4-trichlorobiphenyl Chemical group ClC1=C(Cl)C(Cl)=CC=C1C1=CC=CC=C1 IUYHQGMDSZOPDZ-UHFFFAOYSA-N 0.000 description 3
- 244000215068 Acacia senegal Species 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 3
- 230000002744 anti-aggregatory effect Effects 0.000 description 3
- 239000004202 carbamide Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000010668 complexation reaction Methods 0.000 description 3
- 238000004132 cross linking Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- AGFASGGUHBOODX-UHFFFAOYSA-L vanadyl sulfate dihydrate Chemical compound O.O.[V+2]=O.[O-]S([O-])(=O)=O AGFASGGUHBOODX-UHFFFAOYSA-L 0.000 description 3
- WNZQDUSMALZDQF-UHFFFAOYSA-N 2-benzofuran-1(3H)-one Chemical compound C1=CC=C2C(=O)OCC2=C1 WNZQDUSMALZDQF-UHFFFAOYSA-N 0.000 description 2
- SVTBMSDMJJWYQN-UHFFFAOYSA-N 2-methylpentane-2,4-diol Chemical compound CC(O)CC(C)(C)O SVTBMSDMJJWYQN-UHFFFAOYSA-N 0.000 description 2
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 2
- 125000002947 alkylene group Chemical group 0.000 description 2
- 230000009918 complex formation Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000000499 gel Substances 0.000 description 2
- OSWPMRLSEDHDFF-UHFFFAOYSA-N methyl salicylate Chemical compound COC(=O)C1=CC=CC=C1O OSWPMRLSEDHDFF-UHFFFAOYSA-N 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 235000019198 oils Nutrition 0.000 description 2
- 229920002689 polyvinyl acetate Polymers 0.000 description 2
- 239000011118 polyvinyl acetate Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- LIZLYZVAYZQVPG-UHFFFAOYSA-N (3-bromo-2-fluorophenyl)methanol Chemical compound OCC1=CC=CC(Br)=C1F LIZLYZVAYZQVPG-UHFFFAOYSA-N 0.000 description 1
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- FERIUCNNQQJTOY-UHFFFAOYSA-M Butyrate Chemical compound CCCC([O-])=O FERIUCNNQQJTOY-UHFFFAOYSA-M 0.000 description 1
- FERIUCNNQQJTOY-UHFFFAOYSA-N Butyric acid Natural products CCCC(O)=O FERIUCNNQQJTOY-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 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
- 241000196324 Embryophyta Species 0.000 description 1
- 244000165918 Eucalyptus papuana Species 0.000 description 1
- 108010010803 Gelatin Proteins 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 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 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 1
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 1
- 239000001166 ammonium sulphate Substances 0.000 description 1
- 235000011130 ammonium sulphate Nutrition 0.000 description 1
- 150000001491 aromatic compounds Chemical class 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 239000003139 biocide Substances 0.000 description 1
- JRMXMZUJZODGOW-UHFFFAOYSA-N boronooxyboronic acid 2-methylpentane-2,4-diol Chemical compound B(O)(O)OB(O)O.CC(C)(CC(C)O)O.CC(C)(CC(C)O)O JRMXMZUJZODGOW-UHFFFAOYSA-N 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 238000010382 chemical cross-linking Methods 0.000 description 1
- 125000003636 chemical group Chemical group 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000007771 core particle Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N diphenyl Chemical group C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 235000021323 fish oil Nutrition 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000008273 gelatin Substances 0.000 description 1
- 229920000159 gelatin Polymers 0.000 description 1
- 235000019322 gelatine Nutrition 0.000 description 1
- 235000011852 gelatine desserts Nutrition 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 150000004676 glycans Chemical class 0.000 description 1
- 125000003827 glycol group Chemical group 0.000 description 1
- 229940051250 hexylene glycol Drugs 0.000 description 1
- 239000012456 homogeneous solution Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000002917 insecticide Substances 0.000 description 1
- 210000002425 internal capsule Anatomy 0.000 description 1
- 150000002596 lactones Chemical class 0.000 description 1
- 239000006193 liquid solution Substances 0.000 description 1
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 1
- 235000019341 magnesium sulphate Nutrition 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 229960001047 methyl salicylate Drugs 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000008390 olive oil Nutrition 0.000 description 1
- 239000004006 olive oil Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920001282 polysaccharide Polymers 0.000 description 1
- 239000005017 polysaccharide Substances 0.000 description 1
- 235000021395 porridge Nutrition 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 238000003385 ring cleavage reaction Methods 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 235000013599 spices Nutrition 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
- 239000008158 vegetable oil Substances 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- 229920003169 water-soluble polymer Polymers 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/26—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests in coated particulate form
- A01N25/28—Microcapsules or nanocapsules
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
- Y10T428/2984—Microcapsule with fluid core [includes liposome]
- Y10T428/2985—Solid-walled microcapsule from synthetic polymer
- Y10T428/2987—Addition polymer from unsaturated monomers only
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Agronomy & Crop Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- Plant Pathology (AREA)
- Toxicology (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Manufacturing Of Micro-Capsules (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US70112768A | 1968-01-29 | 1968-01-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO124764B true NO124764B (da) | 1972-06-05 |
Family
ID=24816177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO6942A NO124764B (da) | 1968-01-29 | 1969-01-06 |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US3574133A (da) |
| BE (1) | BE727292A (da) |
| BR (1) | BR6905911D0 (da) |
| CH (1) | CH494061A (da) |
| DK (1) | DK125527B (da) |
| FR (1) | FR1596379A (da) |
| GB (1) | GB1197704A (da) |
| NL (1) | NL6901367A (da) |
| NO (1) | NO124764B (da) |
| SE (1) | SE338300B (da) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5515681A (en) * | 1978-07-21 | 1980-02-02 | Kuraray Co Ltd | Production of microcapsule |
| US4377621A (en) * | 1981-05-29 | 1983-03-22 | Capsulated Systems, Inc. | Hydrolyzed ethylene vinyl acetate encapsulating coating |
| US4657582A (en) * | 1985-05-30 | 1987-04-14 | Pennwalt Corporation | Polyhydroxy polymer delivery systems |
| US5160530A (en) * | 1989-01-24 | 1992-11-03 | Griffin Corporation | Microencapsulated polymorphic agriculturally active material |
| US5461027A (en) * | 1989-01-24 | 1995-10-24 | Griffin Corporation | Microencapsulated pendimethalin and method of making and using same |
| JP2914452B2 (ja) * | 1989-09-28 | 1999-06-28 | 三菱製紙株式会社 | マイクロカプセル及びその製造方法 |
| US5599767A (en) * | 1994-05-27 | 1997-02-04 | Micro Flo Company | Salt sensitive binder system |
| US6833191B2 (en) * | 2001-11-20 | 2004-12-21 | Encap Technologies, Llc | Microencapsulated particles and process for manufacturing same |
| US6562460B1 (en) | 2001-11-20 | 2003-05-13 | Encap Technologies, Llc | Microencapsulated particles and process for manufacturing same |
| US6899958B2 (en) | 2002-06-21 | 2005-05-31 | Encap Technologies, Llc. | Moisture barrier resins |
-
1968
- 1968-01-29 US US701127*A patent/US3574133A/en not_active Expired - Lifetime
- 1968-12-19 SE SE17463/68A patent/SE338300B/xx unknown
- 1968-12-24 FR FR1596379D patent/FR1596379A/fr not_active Expired
-
1969
- 1969-01-06 NO NO6942A patent/NO124764B/no unknown
- 1969-01-07 GB GB946/69A patent/GB1197704A/en not_active Expired
- 1969-01-13 CH CH71769A patent/CH494061A/fr not_active IP Right Cessation
- 1969-01-16 DK DK23269AA patent/DK125527B/da unknown
- 1969-01-23 BE BE727292D patent/BE727292A/xx unknown
- 1969-01-28 NL NL6901367A patent/NL6901367A/xx unknown
- 1969-01-28 BR BR205911/69A patent/BR6905911D0/pt unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BE727292A (da) | 1969-07-01 |
| SE338300B (da) | 1971-09-06 |
| US3574133A (en) | 1971-04-06 |
| GB1197704A (en) | 1970-07-08 |
| DK125527B (da) | 1973-03-05 |
| NL6901367A (da) | 1969-07-31 |
| FR1596379A (da) | 1970-06-15 |
| CH494061A (fr) | 1970-07-31 |
| BR6905911D0 (pt) | 1973-02-08 |
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