NO116464B - - Google Patents
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- Publication number
- NO116464B NO116464B NO16284166A NO16284166A NO116464B NO 116464 B NO116464 B NO 116464B NO 16284166 A NO16284166 A NO 16284166A NO 16284166 A NO16284166 A NO 16284166A NO 116464 B NO116464 B NO 116464B
- Authority
- NO
- Norway
- Prior art keywords
- silver
- materials
- solution
- distilled water
- stannous chloride
- Prior art date
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- 239000000463 material Substances 0.000 claims description 25
- 229910052709 silver Inorganic materials 0.000 claims description 17
- 239000004332 silver Substances 0.000 claims description 17
- 239000000243 solution Substances 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- TXUICONDJPYNPY-UHFFFAOYSA-N (1,10,13-trimethyl-3-oxo-4,5,6,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-17-yl) heptanoate Chemical compound C1CC2CC(=O)C=C(C)C2(C)C2C1C1CCC(OC(=O)CCCCCC)C1(C)CC2 TXUICONDJPYNPY-UHFFFAOYSA-N 0.000 claims description 10
- 229910021626 Tin(II) chloride Inorganic materials 0.000 claims description 10
- 235000011150 stannous chloride Nutrition 0.000 claims description 10
- 239000001119 stannous chloride Substances 0.000 claims description 10
- 239000012153 distilled water Substances 0.000 claims description 9
- 238000005470 impregnation Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- GGCZERPQGJTIQP-UHFFFAOYSA-N sodium;9,10-dioxoanthracene-2-sulfonic acid Chemical compound [Na+].C1=CC=C2C(=O)C3=CC(S(=O)(=O)O)=CC=C3C(=O)C2=C1 GGCZERPQGJTIQP-UHFFFAOYSA-N 0.000 claims description 5
- 239000012266 salt solution Substances 0.000 claims description 4
- 239000011368 organic material Substances 0.000 claims description 3
- 230000003647 oxidation Effects 0.000 claims description 2
- 238000007254 oxidation reaction Methods 0.000 claims description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 14
- 238000011282 treatment Methods 0.000 description 5
- 239000011521 glass Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- 238000001556 precipitation Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- 230000000721 bacterilogical effect Effects 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000007800 oxidant agent Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- NDVLTYZPCACLMA-UHFFFAOYSA-N silver oxide Chemical compound [O-2].[Ag+].[Ag+] NDVLTYZPCACLMA-UHFFFAOYSA-N 0.000 description 2
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 206010052428 Wound Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000002421 anti-septic effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000029142 excretion Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000012286 potassium permanganate Substances 0.000 description 1
- 229910001961 silver nitrate Inorganic materials 0.000 description 1
- 229910001923 silver oxide Inorganic materials 0.000 description 1
- XNRABACJWNCNEQ-UHFFFAOYSA-N silver;azane;nitrate Chemical compound N.[Ag+].[O-][N+]([O-])=O XNRABACJWNCNEQ-UHFFFAOYSA-N 0.000 description 1
- 235000000346 sugar Nutrition 0.000 description 1
- 150000008163 sugars Chemical class 0.000 description 1
- PGWMQVQLSMAHHO-UHFFFAOYSA-N sulfanylidenesilver Chemical compound [Ag]=S PGWMQVQLSMAHHO-UHFFFAOYSA-N 0.000 description 1
- 238000010301 surface-oxidation reaction Methods 0.000 description 1
- 229910001432 tin ion Inorganic materials 0.000 description 1
Description
Fremgangsmåte til å gi organiske materialer selvsteriliserende egenskaper. Process for giving organic materials self-sterilizing properties.
Formålet med den foreliggende opp-finnelse er å gjøre organiske materialer av The purpose of the present invention is to dispose of organic materials
forskjellig art og opprinnelse, som f. eks. different nature and origin, such as e.g.
tekstilmaterialer av enhver art eller form, textile materials of any kind or form,
svampgummi, svampplast, og i det hele sponge rubber, sponge plastic, and in general
alle slags materialer som på noen måte all kinds of materials that in any way
skal komme i berøring med det mennesk-lige legeme, ugjennomtrengelig for mikro-organismer, ved at man i disse materialer must come into contact with the human body, impervious to micro-organisms, by the fact that in these materials
frambringer tilstander som hindrer disse produces conditions that prevent these
organismers vekst. growth of organisms.
Dette skier på i og for seg kjent måte This skis in and of itself known way
ved at materialet impregneres med elementært sølv i overordentlig fin fordeling, by impregnating the material with elemental silver in extremely fine distribution,
idet sølvet utfelles fra en sølvsaltoppløs-ning som materialet er blitt innpregnert as the silver is precipitated from a silver salt solution into which the material has been impregnated
med. with.
I henhold til oppfinnelsen blir imidler-tid materialet før impregneringen med According to the invention, however, the material before the impregnation is included
sølvsaltoppløsningen impregnert med en the silver salt solution impregnated with a
oppløsning av stannoklorid i vann, fortrinsvis destillert vann, hvoretter materialet vaskes grundig med fortrinsvis destillert vann. solution of stannous chloride in water, preferably distilled water, after which the material is washed thoroughly with preferably distilled water.
I denne framgangsmåte anvendes ikke In this procedure it is not used
stannoklorid som reduksjonsmiddel, men stannous chloride as a reducing agent, but
til å befordre den senere utskillelse av sølv to promote the subsequent excretion of silver
bare på de ønskede steder. Den anvendte only in the desired places. The applied
stannokloridoppløsning er meget tynn, stannous chloride solution is very thin,
nemlig ca. 1:10 000. Og etter impregneringen med stannokloridoppløsning vaskes namely approx. 1:10,000. And after impregnation with stannous chloride solution, wash
materialet grundig med destillert vann, the material thoroughly with distilled water,
slik at det av Sn-ioner bare blir tilbake så-danne som er blitt fiksert til materialfibrene. Disse Sn-ioner virker som en slags so that Sn ions only remain as they have been fixed to the material fibres. These Sn ions act as a kind of
katalysator ved den senere utfelning av catalyst by the subsequent precipitation of
sølv, som bevirkes ved tilsetning av spesi-elle felningsmidler, og denne utfelning silver, which is effected by the addition of special precipitation agents, and this precipitation
foregår da praktisk talt bare på fibrene, takes place practically only on the fibres,
ikke i selve oppløsningen, slik at det spares en hel del sølv, idet nesten intet går tapt i form av sølv som bare blir dispergert i oppløsningen uten å avsette seg på materialfibrene. not in the solution itself, so that a whole lot of silver is saved, as almost nothing is lost in the form of silver which is only dispersed in the solution without settling on the material fibres.
Det viser seg i praksis at den væske i hvilken den endelige reduksjonsbehandiing foregår forblir helt klar, hvilket betyr at reduksjonen til elementært sølv praktisk talt bare foregår på materialfibrene, altså på det sted hvor man har interesse av å få sølv utfelt. It turns out in practice that the liquid in which the final reduction treatment takes place remains completely clear, which means that the reduction to elemental silver practically only takes place on the material fibers, i.e. in the place where there is an interest in getting silver precipitated.
Et meget enkelt forsøk belyser forhol-dene: Man dypper en glassplate delvis ned i en fortynnet oppløsning av stannoklorid. Deretter blir den del av glassplaten som har vært i berøring med stannokloridopp-løsningen vasket grundig elier endog gnidd med en våt svamp. Deretter underkastes hele glassplaten de neddyppinger som er beskrevet i kravet, og man vil finne at elementært sølv bare adheres til den del av glassplaten som hadde vært i berøring med stannokloridoppløsningen. Også i dette til-felle har altså tinnionene bare virket som «katalysator». A very simple experiment illuminates the situation: A glass plate is partially dipped into a diluted solution of stannous chloride. Then the part of the glass plate which has been in contact with the stannous chloride solution is thoroughly washed or even rubbed with a wet sponge. The entire glass plate is then subjected to the immersions described in the claim, and it will be found that elemental silver only adheres to the part of the glass plate that had been in contact with the stannous chloride solution. In this case too, the tin ions have only acted as a "catalyst".
I det følgende gis det et eksempel på utførelsen av framgangsmåten ifølge oppfinnelsen, uten dog at oppfinnelsen er be-grenset til dette eksempel. In the following, an example is given of the execution of the method according to the invention, without, however, the invention being limited to this example.
Det første arbeidstrinn består i en grundig vasking av materialene som skal The first work step consists of a thorough washing of the materials to be used
behandles i destillert vann for å fjerne alle treated in distilled water to remove all
forurensninger og vannoppløselige stoffer pollutants and water-soluble substances
som kunne hindre avsetningen av metall. Deretter blir materialene dyppet i en opp-løsning av stannoklorid i destillert vann; which could prevent the deposition of metal. The materials are then dipped in a solution of stannous chloride in distilled water;
denne dypping har til formål å forberede this dipping has the purpose of preparing
materialene derved at det i disse skaffes gunstige betingelser for avsetning av metall. the materials in that they provide favorable conditions for the deposition of metal.
Deretter foretas en annen vaskning i destillert vann for å fjerne overskuddet av stannoklorid. Mellom hvilke som helst av de ovenfor beskrevne operasjoner og den etterfølgende operasjon kan materialene underkastes mekaniske behandlinger for å fjerne behandlingsoppløsningen. Dette vil si at de kan presses, anbringes i en sen-trifuge eller underkastes hvilke som helst andre operasjoner som er egnet til å fjerne de væsker som er blitt anvendt. Deretter følger en impregnering av materialene med en ammoniakk-sølvnitratoppløsning, hvoretter sølvnitratet blir redusert, slik at sølvsaltet omdannes til elementært sølv i overordentlig fin fordeling. Reduksjonen kan utføres ved å anvende et reduserende stoff som egner seg for formålet, og blant godt egnede stoffer hertil er reduserende sukkere og formaldehyd. Ved reaksjonen får man elementært sølv i overordentlig fin fordeling samt ammoniumnitrat. Metallet avsettes på materialet såvel på dets overflate som i dets porer på grunn av den fullstendige impregnering av materialet som er foregått på forhånd, og am-moniumnitratet kan lett fjernes ved å vaskes bort med destillert vann, i hvilket siste det avsatte metall naturligvis er uoppløselig. A second wash is then carried out in distilled water to remove the excess of stannous chloride. Between any of the above-described operations and the subsequent operation, the materials may be subjected to mechanical treatments to remove the treatment solution. This means that they can be pressed, placed in a slow centrifuge or subjected to any other operations suitable for removing the liquids that have been used. The materials are then impregnated with an ammonia-silver nitrate solution, after which the silver nitrate is reduced, so that the silver salt is converted into elemental silver in an extremely fine distribution. The reduction can be carried out by using a reducing substance that is suitable for the purpose, and among well-suited substances for this purpose are reducing sugars and formaldehyde. The reaction yields elemental silver in extremely fine distribution as well as ammonium nitrate. The metal is deposited on the material both on its surface and in its pores due to the complete impregnation of the material which has taken place beforehand, and the ammonium nitrate can be easily removed by washing away with distilled water, in which latter the deposited metal is naturally insoluble .
For å unngå en mulig dannelse av sølv-sulfid, som ikke byr noen fordel fra et bakteriologisk standpunkt, kan det foretas en overflateoksydasion av sølvet som er avsatt i fibrene; til dette formål anvendes det et passende oksydasjonsmiddel som f. eks. vannstoffsuperoksyd, oson, surstoff eller kaliumpermanganat. In order to avoid a possible formation of silver sulphide, which offers no advantage from a bacteriological point of view, a surface oxidation of the silver deposited in the fibers can be carried out; for this purpose, a suitable oxidizing agent is used, e.g. hydrogen peroxide, ozone, oxygen or potassium permanganate.
Ved å avpasse konsentrasjonen av oksydasjonsmidlet og varigheten av be-handlingen, kan oksydasjonen skje mer eller mindre intenst og kan f. eks. føres fram til at 70 pst. utgjøres av sølvoksyd, mens de resterende 30 pst. er elementært sølv. By adjusting the concentration of the oxidizing agent and the duration of the treatment, the oxidation can be more or less intense and can e.g. it is concluded that 70 per cent is made up of silver oxide, while the remaining 30 per cent is elemental silver.
Da alle de her beskrevne operasjoner utføres i flytende fase, er det klart at det er overordentlig mange slags materialer som kan behandles på denne måte, således f. eks. alle slags tekstilmaterialer, både for normalt bruk og for behandling av sår, til frakker for kirurger og andre leger, for sterile, antiseptiske klær og plagg av enhver art, for materialer til madrasser og stopp, svampgummi og svampplast, som kan tjene som bærer for det bakteriolo-giske stoff som utgjøres av det elementære sølv i overordentlig fin fordeling. As all the operations described here are carried out in the liquid phase, it is clear that there are an exceedingly large number of types of materials that can be treated in this way, thus e.g. all kinds of textile materials, both for normal use and for the treatment of wounds, for coats for surgeons and other doctors, for sterile, antiseptic clothing and garments of all kinds, for materials for mattresses and padding, sponge rubber and sponge plastic, which can serve as a carrier for the bacteriological substance which is made up of the elemental silver in extremely fine distribution.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO16284166A NO116464B (en) | 1961-03-22 | 1966-05-03 |
Applications Claiming Priority (15)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US9743461A | 1961-03-22 | 1961-03-22 | |
US16461562A | 1962-01-05 | 1962-01-05 | |
NO14373562 | 1962-03-21 | ||
US28693563 US3161654A (en) | 1962-01-05 | 1963-06-11 | alpha-(1-aroyl-3-indolyl) alkanoic acids |
US296451A US3201414A (en) | 1963-07-22 | 1963-07-22 | New 1-heteroacyl-3-indolyl aliphatic acids |
US31045463A | 1963-09-20 | 1963-09-20 | |
US31047763A | 1963-09-20 | 1963-09-20 | |
US314503A US3242185A (en) | 1963-10-07 | 1963-10-07 | Lower aliphatic acids, salts and derivatives thereof |
US32386363A | 1963-11-04 | 1963-11-04 | |
US321328A US3275644A (en) | 1962-01-05 | 1963-11-04 | Certain 1-azolylindol-3-ylaliphatic acids |
US321686A US3275645A (en) | 1962-01-05 | 1963-11-06 | N-(1-acyl-3-indolyl)-acids |
US437338A US3338921A (en) | 1962-01-05 | 1965-01-26 | Thenoic and furoic acids |
US442152A US3328423A (en) | 1962-01-05 | 1965-03-23 | alpha-(3-indolyl)-cyclopropyl lower aliphatic acids |
US528020A US3316267A (en) | 1962-01-05 | 1966-02-15 | Indolyl acids |
NO16284166A NO116464B (en) | 1961-03-22 | 1966-05-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
NO116464B true NO116464B (en) | 1969-03-31 |
Family
ID=27585425
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO16284166A NO116464B (en) | 1961-03-22 | 1966-05-03 |
Country Status (1)
Country | Link |
---|---|
NO (1) | NO116464B (en) |
-
1966
- 1966-05-03 NO NO16284166A patent/NO116464B/no unknown
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