DE2920906A1 - Waessriges siliciumdioxidgel enthaltende zahnputzmittelzusammensetzung und verfahren zu deren herstellung - Google Patents
Waessriges siliciumdioxidgel enthaltende zahnputzmittelzusammensetzung und verfahren zu deren herstellungInfo
- Publication number
- DE2920906A1 DE2920906A1 DE19792920906 DE2920906A DE2920906A1 DE 2920906 A1 DE2920906 A1 DE 2920906A1 DE 19792920906 DE19792920906 DE 19792920906 DE 2920906 A DE2920906 A DE 2920906A DE 2920906 A1 DE2920906 A1 DE 2920906A1
- Authority
- DE
- Germany
- Prior art keywords
- gel
- aqueous
- silica
- hydrogel
- silica gel
- 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.)
- Granted
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
- A61K8/04—Dispersions; Emulsions
- A61K8/042—Gels
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
- A61K8/25—Silicon; Compounds thereof
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q11/00—Preparations for care of the teeth, of the oral cavity or of dentures; Dentifrices, e.g. toothpastes; Mouth rinses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
- B65D5/42—Details of containers or of foldable or erectable container blanks
- B65D5/44—Integral, inserted or attached portions forming internal or external fittings
- B65D5/46—Handles
- B65D5/46008—Handles formed separately from the container body
- B65D5/46016—Straps used as handles fixed to the container by glueing, stapling, heat-sealing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
- B65D5/42—Details of containers or of foldable or erectable container blanks
- B65D5/62—External coverings or coatings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
- B65D5/42—Details of containers or of foldable or erectable container blanks
- B65D5/64—Lids
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
- A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
- A61K2800/41—Particular ingredients further characterized by their size
- A61K2800/412—Microsized, i.e. having sizes between 0.1 and 100 microns
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Veterinary Medicine (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Chemical & Material Sciences (AREA)
- Birds (AREA)
- Epidemiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Dispersion Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Cosmetics (AREA)
- Silicon Compounds (AREA)
Description
Gesamtgewichtsprozent | 75 |
5 bis | 30 |
0,5 " | 5 |
0,1 " | 60 |
4 | 6 |
0,01 " | 2 |
0,01 " |
RDA | Na 0 | S04 | 0,69 | NH | 2 43 |
325 mesh·* | 100 | mesh* |
760 | 0,14 | 0,11 | 0,41 | o, | 35 | 1,63 | 0 | |
860 | 0,11 | 0,19 | 0,31 | o, | 34 | 1,12 | 10 | ppm |
930 | 0,13 | 0,29 | o, | 1,45 | 10 | ppm | ||
Unbehandelt | ||||||||
160 | 0,36 | 1,91 | 10 | ppm | ||||
360 | 0,24 | 1,09 | 10 | ppm | ||||
440 | 0,15 | 1,49 | 50 | ppm | ||||
Tabelle II | NH, | Gew.-$ bei | nassem | Microtrak APS /um (bzwiMikron) |
RDA | |
Gew | .-fo Trockenbasis | 0,37 0,24 0,23 |
Sieb | 14,8 14,9 14,3 |
||
0 SO. | - | 325 mesh* | 100 mesh* | 12,3 12,5 |
675 815 970 |
|
— | 260 540 865 |
|||||
0,37 1,26 1,25 |
1,88 1,69 0,32 |
0 0 0 |
||||
0,29 0,61 0,71 |
0,07 0,03 0,01 |
0,07 0,19 0,06 |
0 0 0 |
|||
0,04 0,04 0,05 |
||||||
Vergleich | 31 | 3,2 | 580 |
2 | 31,5 | 6,1 | 780 |
3 | 31 | 6,9 | 930 |
4 | 28 | 7,7 | 1070 |
5 | 35 | 7,0 | 790 |
6 | 34,5 | 7,5 | 860 |
7 | 33 | 8,2 | 950 |
Vergleich | 39 | 3,2 | 325 |
Beispiel 4 |
A | /0 ± V 56,9 |
JIa2O | SO4 | |
co | A A |
45,8 38,8 |
0,99 | 1,82 |
O co CS OO |
0 | 55,9 | 9,39 0,42 |
0,82 0,70 |
O co |
C | 46,4 | 0,04 | 0,09 |
IO | 0 | 39,4 | 0,04 | 0,03 |
0,04 | 0,10 |
Gew.-^ bei | nassem | Sieb | Microtrak APS jam (bzw.Mikron) |
325 mesh* | 100 | mesh* | |
1,70 | 10 | ppm | 16,1 |
0,13 | 0 | 13,1 | |
0,33 | 10 | ppm | 13,5 |
0,11 | 0 | 13,8 | |
0,14 | 0 | 13,2 | |
0,25 | ο, | 02 | 12,1 |
Claims (11)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/909,149 US4303641A (en) | 1978-05-24 | 1978-05-24 | Hydrous silica gel containing dentifrice |
Publications (2)
Publication Number | Publication Date |
---|---|
DE2920906A1 true DE2920906A1 (de) | 1979-11-29 |
DE2920906C2 DE2920906C2 (de) | 1983-12-08 |
Family
ID=25426707
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2954184A Expired DE2954184C2 (de) | 1978-05-24 | 1979-05-23 | Verfahren zur Herstellung eines wasserhaltigen Siliciumdioxidgels |
DE2920906A Expired DE2920906C2 (de) | 1978-05-24 | 1979-05-23 | Wäßriges Siliciumdioxidgel enthaltende Zahnputzmittelzusammensetzung und Verfahren zu deren Herstellung |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2954184A Expired DE2954184C2 (de) | 1978-05-24 | 1979-05-23 | Verfahren zur Herstellung eines wasserhaltigen Siliciumdioxidgels |
Country Status (15)
Country | Link |
---|---|
US (1) | US4303641A (de) |
JP (2) | JPS5513265A (de) |
AT (1) | AT372277B (de) |
AU (1) | AU524229B2 (de) |
BE (1) | BE876505A (de) |
CH (2) | CH654742B (de) |
DE (2) | DE2954184C2 (de) |
DK (1) | DK156294C (de) |
FR (1) | FR2426459B1 (de) |
GB (2) | GB2080784B (de) |
IT (1) | IT1120200B (de) |
MY (2) | MY8500381A (de) |
NL (1) | NL7904055A (de) |
PH (3) | PH14833A (de) |
ZA (1) | ZA792525B (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2622565A1 (fr) * | 1987-11-04 | 1989-05-05 | Rhone Poulenc Chimie | Silice pour compositions dentifrices compatible notamment avec le zinc |
US5286478A (en) * | 1987-11-04 | 1994-02-15 | Rhone-Poulenc Chimie | Dentifrice-compatible silica particulates |
US5614177A (en) * | 1987-11-04 | 1997-03-25 | Rhone-Poulenc Chimie | Dentifrice-compatible silica particulates |
Families Citing this family (36)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4381318A (en) * | 1981-01-05 | 1983-04-26 | Ici Americas Inc. | Maltitol containing gel base systems |
US4357314A (en) * | 1981-01-05 | 1982-11-02 | Ici Americas Inc. | Maltitol containing toothpaste |
JPS57174559A (en) * | 1981-04-20 | 1982-10-27 | Taisei Corp | Mold frame having guide rail mounted therein |
US4448778A (en) * | 1981-08-03 | 1984-05-15 | Ici Americas Inc. | Maltitol containing gel base systems |
JPS6048917A (ja) * | 1983-08-24 | 1985-03-16 | Lion Corp | 歯磨組成物 |
US4614649A (en) * | 1983-12-09 | 1986-09-30 | Sterling Drug Inc. | Antiplaque saccharin salt dentrifices and method of use thereof |
JPS59213672A (ja) * | 1983-12-19 | 1984-12-03 | 日立金属株式会社 | 磁気ヘツド用非磁性セラミツクス |
US4575456A (en) * | 1984-11-30 | 1986-03-11 | Colgate-Palmolive Company | Gel dentifrice of desirable consistency |
DE3525495C1 (de) * | 1985-07-17 | 1987-01-02 | Heraeus Schott Quarzschmelze | Verfahren zur Herstellung von Gegenstaenden aus synthetischem Siliziumdioxid |
US5149553A (en) * | 1989-10-12 | 1992-09-22 | Pq Corporation | Beer processing and composition |
US5108734A (en) * | 1991-07-01 | 1992-04-28 | Colgate-Palmolive Company | Prophy mouthfeel dentifrice having low RDA value |
US5658553A (en) * | 1995-05-02 | 1997-08-19 | The Procter & Gamble Company | Dentifrice compositions |
US5858909A (en) * | 1996-09-27 | 1999-01-12 | W. R. Grace & Co.-Conn. | Siliceous oxide comprising an alkaline constituent |
US5939051A (en) * | 1998-02-27 | 1999-08-17 | Colgate-Palmolive Company | Dental abrasive |
US6294155B1 (en) | 1998-04-08 | 2001-09-25 | W. R. Grace & Co. -Conn. | Abrasive silica compositions and dentifrice compositions prepared therefrom |
USD418374S (en) | 1998-07-30 | 2000-01-04 | Aladdin Industries, Llc | Combined insulated beverage bottle and cups |
US6586501B1 (en) | 1999-01-20 | 2003-07-01 | Cabot Corporation | Aggregates having attached polymer groups and polymer foams |
US6258864B1 (en) | 1999-01-20 | 2001-07-10 | Cabot Corporation | Polymer foam containing chemically modified carbonaceous filler |
ATE283029T1 (de) * | 1999-08-16 | 2004-12-15 | Pq Holding Inc | Adsorptionsmittel von schwefelverbindungen zur verminderung des geruchs von zwiebeln oder knoblauch im atem |
US6174515B1 (en) | 2000-06-05 | 2001-01-16 | Amway Corporation | Toothpaste composition |
US6896876B1 (en) | 2001-01-31 | 2005-05-24 | W.R. Grace & Co.-Conn. | High cleaning silica gel dental abrasive, dentifrices prepared therefrom, and a method for preparing the dental abrasive |
US7267814B2 (en) * | 2004-11-24 | 2007-09-11 | J.M. Huber Corporation | High-cleaning/low abrasive silica and materials and dentifrice containing such materials |
US7306788B2 (en) * | 2004-11-24 | 2007-12-11 | J.M. Huber Corporation | High-cleaning/moderate abrasive silica materials and dentifrice containing such materials |
US7670593B2 (en) * | 2004-11-24 | 2010-03-02 | J.M. Huber Corporation | High-cleaning silica materials and dentifrice containing such |
US20060110307A1 (en) * | 2004-11-24 | 2006-05-25 | Mcgill Patrick D | High-cleaning silica materials made via product morphology control and dentifrice containing such |
US7303742B2 (en) * | 2004-11-24 | 2007-12-04 | J.M. Huber Corporation | Viscosity-modifying silica materials that exhibit low cleaning and abrasive levels and dentifrices thereof |
GB0525369D0 (en) * | 2005-12-14 | 2006-01-18 | Ineos Silicas Ltd | Silicas |
US20070154413A1 (en) * | 2005-12-30 | 2007-07-05 | Nolan Lee Phillips | Dentifrices comprising biogenic silica materials |
US20070154412A1 (en) * | 2005-12-30 | 2007-07-05 | Nolan Lee Phillips | Dentifrices comprising biogenic silica materials |
US20070224133A1 (en) * | 2006-03-23 | 2007-09-27 | Mcgill Patrick D | High-cleaning silica materials made via product morphology control under high shear conditions |
US7270803B1 (en) | 2006-03-23 | 2007-09-18 | J.M. Huber Corporation | High-cleaning, low abrasion, high brightness silica materials for dentrifices |
US20080159967A1 (en) * | 2006-12-27 | 2008-07-03 | Fultz William C | Dentifrices comprising biogenic silica materials and at least one calcium phosphate |
US20080159968A1 (en) * | 2006-12-27 | 2008-07-03 | Fultz William C | Dentifrices comprising biogenic silica materials and calcium carbonate |
US20090297459A1 (en) * | 2008-06-03 | 2009-12-03 | Duen-Wu Hua | Transparent silica gel/precipitated silica composite materials for dentifrices |
WO2014043163A1 (en) | 2012-09-11 | 2014-03-20 | Slh Optimal Health Llc | Dental cleaning composition |
JP6189651B2 (ja) * | 2013-06-10 | 2017-08-30 | 花王株式会社 | 歯磨剤 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2505191A1 (de) | 1975-02-07 | 1976-08-26 | Degussa | Verfahren zur herstellung einer feinteiligen kieselsaeure durch spruehtrocknung |
DE2310771B2 (de) * | 1973-03-03 | 1977-02-24 | The Procter & Gamble Co., Cincinnati, Ohio (V.St.A.) | Die zahnsteinbildung hemmende zusammensetzung mit einem silikaxerogel- abriebstoff |
DE2704504A1 (de) * | 1976-02-05 | 1977-08-11 | Grace W R & Co | Zahnputzmittel |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1900859A (en) * | 1929-04-27 | 1933-03-07 | Silica Gel Corp | Method of making gels |
US2785051A (en) * | 1953-08-12 | 1957-03-12 | Jefferson Lake Sulphur Co | Method of making silica gel |
US2858284A (en) * | 1955-04-11 | 1958-10-28 | Grace W R & Co | Non-caking flatting agent for varnishes |
US3146676A (en) * | 1962-06-06 | 1964-09-01 | Cincinnati Milling Machine Co | Machine tool control mechanism |
US3538230A (en) * | 1966-12-05 | 1970-11-03 | Lever Brothers Ltd | Oral compositions containing silica xerogels as cleaning and polishing agents |
FR1600227A (de) * | 1968-02-10 | 1970-07-20 | ||
US3526603A (en) * | 1968-03-05 | 1970-09-01 | Grace W R & Co | Process for increasing pore volume of intermediate density silica gel |
US3579464A (en) * | 1968-05-20 | 1971-05-18 | Grace W R & Co | Nondecrepitating silica gel and method for its preparation |
US3975293A (en) * | 1970-06-04 | 1976-08-17 | Produits Chimiques Pechiney-Saint Gobain | Bodies of siliceous gels having large pores and process for preparing same |
US3800031A (en) * | 1972-04-06 | 1974-03-26 | Grace W R & Co | Process for preparing silica hydrogel |
US3803046A (en) * | 1972-06-28 | 1974-04-09 | Grace W R & Co | Process for preparing silica organogel |
US3960586A (en) * | 1973-10-03 | 1976-06-01 | J. M. Huber Corporation | Amorphous precipitated siliceous pigments and improved process for producing such pigments |
DE2414478C3 (de) * | 1974-03-26 | 1978-07-13 | Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler, 6000 Frankfurt | Aerogelartige strukturierte Kieselsäure und Verfahren zu ihrer Herstellung |
FR2332234A1 (fr) * | 1975-11-20 | 1977-06-17 | Rhone Poulenc Ind | Corps siliceux agglomeres |
-
1978
- 1978-05-24 US US05/909,149 patent/US4303641A/en not_active Expired - Lifetime
-
1979
- 1979-05-23 JP JP6274979A patent/JPS5513265A/ja active Granted
- 1979-05-23 GB GB8127850A patent/GB2080784B/en not_active Expired
- 1979-05-23 DE DE2954184A patent/DE2954184C2/de not_active Expired
- 1979-05-23 DE DE2920906A patent/DE2920906C2/de not_active Expired
- 1979-05-23 FR FR7913215A patent/FR2426459B1/fr not_active Expired
- 1979-05-23 AU AU47316/79A patent/AU524229B2/en not_active Ceased
- 1979-05-23 AT AT0379179A patent/AT372277B/de not_active IP Right Cessation
- 1979-05-23 CH CH485779A patent/CH654742B/xx not_active IP Right Cessation
- 1979-05-23 IT IT22937/79A patent/IT1120200B/it active
- 1979-05-23 NL NL7904055A patent/NL7904055A/xx not_active Application Discontinuation
- 1979-05-23 GB GB7918034A patent/GB2022410B/en not_active Expired
- 1979-05-23 DK DK212879A patent/DK156294C/da not_active IP Right Cessation
- 1979-05-23 BE BE0/195359A patent/BE876505A/xx not_active IP Right Cessation
- 1979-05-23 CH CH6356/83A patent/CH654818A5/de not_active IP Right Cessation
- 1979-05-23 ZA ZA792525A patent/ZA792525B/xx unknown
- 1979-05-23 PH PH22545A patent/PH14833A/en unknown
-
1980
- 1980-06-13 PH PH24128A patent/PH15255A/en unknown
- 1980-10-10 PH PH24702A patent/PH15314A/en unknown
-
1984
- 1984-03-30 JP JP59063106A patent/JPS59213611A/ja active Granted
-
1985
- 1985-12-30 MY MY381/85A patent/MY8500381A/xx unknown
- 1985-12-30 MY MY380/85A patent/MY8500380A/xx unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2310771B2 (de) * | 1973-03-03 | 1977-02-24 | The Procter & Gamble Co., Cincinnati, Ohio (V.St.A.) | Die zahnsteinbildung hemmende zusammensetzung mit einem silikaxerogel- abriebstoff |
DE2505191A1 (de) | 1975-02-07 | 1976-08-26 | Degussa | Verfahren zur herstellung einer feinteiligen kieselsaeure durch spruehtrocknung |
DE2704504A1 (de) * | 1976-02-05 | 1977-08-11 | Grace W R & Co | Zahnputzmittel |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2622565A1 (fr) * | 1987-11-04 | 1989-05-05 | Rhone Poulenc Chimie | Silice pour compositions dentifrices compatible notamment avec le zinc |
EP0317378A1 (de) * | 1987-11-04 | 1989-05-24 | Rhone-Poulenc Chimie | Kieselsäure für Zahnpastezusammensetzungen kompatibel insbesondere mit Zink |
US5286478A (en) * | 1987-11-04 | 1994-02-15 | Rhone-Poulenc Chimie | Dentifrice-compatible silica particulates |
US5612020A (en) * | 1987-11-04 | 1997-03-18 | Rhone-Poulenc Chimie | Dentifrice-compatible silica particulates |
US5614176A (en) * | 1987-11-04 | 1997-03-25 | Rhone-Poulenc Chimie | Dentifrice-compatible silica particulates |
US5614177A (en) * | 1987-11-04 | 1997-03-25 | Rhone-Poulenc Chimie | Dentifrice-compatible silica particulates |
US5616316A (en) * | 1987-11-04 | 1997-04-01 | Rhone-Poulenc Chimie | Dentifrice-compatible silica particulates |
Also Published As
Publication number | Publication date |
---|---|
GB2080784B (en) | 1983-02-23 |
BE876505A (fr) | 1979-09-17 |
DE2954184A1 (de) | 1982-10-07 |
IT7922937A0 (it) | 1979-05-23 |
NL7904055A (nl) | 1979-11-27 |
JPS6256126B2 (de) | 1987-11-24 |
DE2920906C2 (de) | 1983-12-08 |
JPS5513265A (en) | 1980-01-30 |
ZA792525B (en) | 1980-08-27 |
JPS59213611A (ja) | 1984-12-03 |
ATA379179A (de) | 1983-02-15 |
DE2954184C2 (de) | 1987-03-12 |
PH14833A (en) | 1981-12-16 |
GB2022410A (en) | 1979-12-19 |
MY8500381A (en) | 1985-12-31 |
FR2426459B1 (fr) | 1985-11-22 |
MY8500380A (en) | 1985-12-31 |
PH15255A (en) | 1982-11-02 |
DK156294B (da) | 1989-07-31 |
DK156294C (da) | 1989-12-18 |
FR2426459A1 (fr) | 1979-12-21 |
DK212879A (da) | 1979-11-25 |
PH15314A (en) | 1982-11-18 |
GB2080784A (en) | 1982-02-10 |
AT372277B (de) | 1983-09-26 |
GB2022410B (en) | 1983-01-12 |
JPH021764B2 (de) | 1990-01-12 |
IT1120200B (it) | 1986-03-19 |
CH654742B (de) | 1986-03-14 |
AU4731679A (en) | 1979-11-29 |
CH654818A5 (de) | 1986-03-14 |
AU524229B2 (en) | 1982-09-09 |
US4303641A (en) | 1981-12-01 |
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