CH592362A5 - - Google Patents
Info
- Publication number
- CH592362A5 CH592362A5 CH43074A CH43074A CH592362A5 CH 592362 A5 CH592362 A5 CH 592362A5 CH 43074 A CH43074 A CH 43074A CH 43074 A CH43074 A CH 43074A CH 592362 A5 CH592362 A5 CH 592362A5
- Authority
- CH
- Switzerland
- Prior art keywords
- sep
- textiles
- hydrogen
- termite
- termites
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
- H01J1/02—Main electrodes
- H01J1/30—Cold cathodes, e.g. field-emissive cathode
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J17/00—Gas-filled discharge tubes with solid cathode
- H01J17/38—Cold-cathode tubes
- H01J17/48—Cold-cathode tubes with more than one cathode or anode, e.g. sequence-discharge tube, counting tube, dekatron
- H01J17/49—Display panels, e.g. with crossed electrodes, e.g. making use of direct current
- H01J17/491—Display panels, e.g. with crossed electrodes, e.g. making use of direct current with electrodes arranged side by side and substantially in the same plane, e.g. for displaying alphanumeric characters
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/02—Manufacture of electrodes or electrode systems
- H01J9/022—Manufacture of electrodes or electrode systems of cold cathodes
Description
Verfahren zum Schützen von Textilien gegen
Termitenfrass.
Termiten sind die bedeutendsten tierischen Material- schädlinge warmer Klimate, denn im Cegensatz zu anderen Schäd- lingen zerstören sie nicht nur solches Material, das innen @@@ Nahrung dient, also zellulosehaltige Substanzen, sondern auch eine grosse Anzahl anderer Werkstoffe der verschiedensten che- mischen Zusammensetzung. So werden ausser Holz und Papier, Kunststoffen, Kautschuk, Lecken, Leder, Bitumen- und Zementmassen auch Textilien von Termiten angegriffen und beschädigt.
Da eine direkte Bekämpfung der Termiten unzweckmässig ist, stellt die Schutzbehandlung der betreffenden termitenan- fälligen Materialien selbst die sicherste Methode dar,.
Bis vor kurzem war nur der Schutz von itolz gegen Termiten möglich. Inzwischen ist man aber in der Lnge, mit ge- eigneten Substanzen und Verfahren auch Textilien beispielsweise durch Imprägnieren mit bestimmten Wirkstoffen termitenfest auszurüsten, wobei nicht unbedingt eine Abtötung der Schädlinge sondern vielmehr ein Resistentmachen der Textilien beabsichtigt und erreicht wird.
An Termitenschutzmittel werden nun in verschiedener Hinsicht besondere Anforderungen gestellt. Sie müssen z. . die bei Verarbeitung der zu schützenden Textilien erforderliche thermische Beanspruchung sowie gegebenenfalls eine Beeinflussung durch fremde Stoffe, wie Weichmacher ohne @eeinträch- tigung der Termitenschutzwirkung überstehen. Ausserdem sollen die Mittel die Textilien dauerhaft schützen, auch im Tropenklima stabil bleiben, dürfen aber andererseits die und die Eigenschaften der Textilien nicht beeinträchtigen @nd müssen schliesslich für Menschen und Nutztiere unbedenklich sein. Diesen mannigfaltigen Anforderungen genügen nur wenige Substanzen.
Es wurde nun gefunden, dass man Textilien gegen Termitenfrass schützen kann, wenn man als Wirkstoffe eine Verbindung der Formel (R1)n verwendet, in der R Wasserstoff oder eine Methylgruppe bedeutet, R1 für Wasserstoff oder einen Alkylrest und R2 für einen gegebenenfalls substituierten, gesättigten oder ungesättigten aliphatischen Rest steht, während X ein Schwefelatom oder eine Sulfoxylgruppe darstellt und m und n für ganze Zanl@n von 1 bis 4 stehen und m + n nicht grösser als 5 ist.
EMI3.1
<tb>
<SEP> FL: <SEP> nr <SEP> rnrrrrnnann+nn <SEP> b-nmn <SEP> hnr7nr+nt- <SEP> R <SEP> 1LTrrcnctr\il..$cc'
<tb> eine <SEP> Methylgruppe, <SEP> R1 <SEP> steht <SEP> für <SEP> siasserstofl <SEP> oder <SEP> e <SEP> 1k:;lret.
<tb> und <SEP> R2 <SEP> für <SEP> einen <SEP> gegebenenfalls <SEP> subst <SEP> rten <SEP> ges4ttigt: <SEP> ofiQr
<tb> ungesättigten <SEP> sliptlPtiw <SEP> -est, <SEP> stellt <SEP> ein <SEP> Schwcss±Jatcri1 <SEP> nlier
<tb> eine <SEP> SulfHdar, <SEP> vJahrend <SEP> m <SEP> und <SEP> n <SEP> t.'i.ir <SEP> ganze <SEP> Zahlen <SEP> von
<tb> =1 <SEP> ctohon <SEP> und <SEP> m <SEP> * <SEP> n <SEP> nlcht <SEP> sirows@r <SEP> al <SEP> s <SEP> 5 <SEP> ZRt,
<tb> Beispiel 1
Ein Baumwollgewebe wird mit einer 0,5 %igen Lösung von 3,5-Dimethyl-4-methylmercaptophenyl-N-methylcarbamat in Dimethylformamid oder Aceton im Imprägnierverfahren ausgerüstet.
Das Gewebe besitzt dann auch nach 2-jähriger Lagerung im Tropenklime noch eine frassabweisende Wirkung gegen Termiten.
Beispiel 2 Wolle wird im wässrigen lade bei Kochtemperatur mit 0,5 so 3-Methyl-4-methylmercaptophenyl-N-methylcarbamat ausgerüstet. Selbst nach einer Seifenwäsche und nach langerer Lagerung im Tropenklima ist die Wolle noch termitenfest.
In gleicher Weise sind u.a. folgende Verbindungen zum Schutz von Textilien gegen Termitenfrass geeignet:
EMI4.1
EMI5.1
Method for protecting textiles against
Termite damage.
Termites are the most important animal material pests in warm climates because, in contrast to other pests, they not only destroy material that is used inside food, ie cellulose-containing substances, but also a large number of other materials with a wide variety of chemical substances Composition. In addition to wood and paper, plastics, rubber, leaks, leather, bitumen and cement compounds, textiles are also attacked and damaged by termites.
Since direct control of termites is inexpedient, the protective treatment of the termite-prone materials in question is itself the safest method.
Until recently, it was only possible to protect itolz against termites. In the meantime, however, suitable substances and processes have been used to equip textiles with a termite-proof finish, for example by impregnating them with certain active ingredients, whereby the intention and achievement of the textiles is not necessarily to kill the pests but rather to make them resistant.
Special requirements are now placed on termite repellants in various ways. You have to z. . withstand the thermal stress required during processing of the textiles to be protected and, if necessary, influence by foreign substances such as plasticizers without impairing the termite protection effect. In addition, the agents should protect the textiles permanently, remain stable even in the tropical climate, but on the other hand must not impair the properties of the textiles and must ultimately be harmless to humans and livestock. Only a few substances meet these diverse requirements.
It has now been found that textiles can be protected against termite damage by using a compound of the formula (R1) n in which R is hydrogen or a methyl group, R1 is hydrogen or an alkyl radical and R2 is an optionally substituted, saturated one or unsaturated aliphatic radical, while X represents a sulfur atom or a sulfoxyl group and m and n stand for whole Zanl @ n from 1 to 4 and m + n is not greater than 5.
EMI3.1
<tb>
<SEP> FL: <SEP> nr <SEP> rnrrrrnnann + nn <SEP> b-nmn <SEP> hnr7nr + nt- <SEP> R <SEP> 1LTrrcnctr \ il .. $ cc '
<tb> a <SEP> methyl group, <SEP> R1 <SEP> stands for <SEP> for <SEP> siasserstofl <SEP> or <SEP> e <SEP> 1k:; lret.
<tb> and <SEP> R2 <SEP> for <SEP> a <SEP> if necessary <SEP> subst <SEP> rten <SEP> saturated: <SEP> ofiQr
<tb> unsaturated <SEP> sliptlPtiw <SEP> -est, <SEP> sets <SEP> <SEP> Schwcss ± Jatcri1 <SEP> nlier
<tb> a <SEP> SulfHdar, <SEP> vjahrend <SEP> m <SEP> and <SEP> n <SEP> t.'i.ir <SEP> whole <SEP> numbers <SEP> from
<tb> = 1 <SEP> ctohon <SEP> and <SEP> m <SEP> * <SEP> n <SEP> not <SEP> sirows @ r <SEP> al <SEP> s <SEP> 5 <SEP> ZRt,
<tb> example 1
A cotton fabric is impregnated with a 0.5% solution of 3,5-dimethyl-4-methylmercaptophenyl-N-methylcarbamate in dimethylformamide or acetone.
Even after 2 years of storage in a tropical climate, the tissue still has an antifouling effect against termites.
Example 2 Wool is finished in an aqueous drawer at boiling temperature with 0.5% 3-methyl-4-methylmercaptophenyl-N-methylcarbamate. The wool is still termite-resistant even after washing with soapy water and after long periods of storage in a tropical climate.
In the same way, i.a. the following compounds are suitable for protecting textiles against termite damage:
EMI4.1
EMI5.1
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7303212A FR2215699B1 (en) | 1973-01-30 | 1973-01-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH592362A5 true CH592362A5 (en) | 1977-10-31 |
Family
ID=9114057
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH43074A CH592362A5 (en) | 1973-01-30 | 1974-01-14 |
Country Status (12)
Country | Link |
---|---|
US (1) | US3921031A (en) |
JP (1) | JPS5133549A (en) |
BE (1) | BE810216A (en) |
CH (1) | CH592362A5 (en) |
DE (1) | DE2403893A1 (en) |
ES (1) | ES422685A1 (en) |
FR (1) | FR2215699B1 (en) |
GB (1) | GB1466697A (en) |
IT (1) | IT1009122B (en) |
NL (1) | NL7401168A (en) |
SE (1) | SE398021B (en) |
SU (1) | SU641890A3 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2822665A1 (en) * | 1978-05-05 | 1979-11-08 | Bbc Brown Boveri & Cie | GLOW CATHODE MATERIAL |
JPS6391925A (en) * | 1986-10-03 | 1988-04-22 | Canon Inc | Electron emitting element |
GB2204991B (en) * | 1987-05-18 | 1991-10-02 | Gen Electric Plc | Vacuum electronic devices |
US5136212A (en) * | 1988-02-18 | 1992-08-04 | Canon Kabushiki Kaisha | Electron emitting device, electron generator employing said electron emitting device, and method for driving said generator |
DE68926467T2 (en) * | 1988-02-18 | 1996-09-19 | Canon Kk | Electron emitter |
CA3017451C (en) | 2016-04-27 | 2021-05-18 | De Nora Permelec Ltd | Electrolyzer with sintered nickel compact to absorb reverse current |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL59317C (en) * | 1941-10-15 | 1946-06-15 | ||
US3184636A (en) * | 1961-06-15 | 1965-05-18 | Sylvania Electric Prod | Cold cathode |
GB1032768A (en) * | 1961-10-17 | 1966-06-15 | Emi Ltd | Improvements in or relating to electron discharge devices |
NL296890A (en) * | 1962-08-23 | |||
US3150282A (en) * | 1962-11-13 | 1964-09-22 | Stanford Research Inst | High efficiency cathode structure |
-
1973
- 1973-01-30 FR FR7303212A patent/FR2215699B1/fr not_active Expired
-
1974
- 1974-01-14 CH CH43074A patent/CH592362A5/de not_active IP Right Cessation
- 1974-01-23 US US435666A patent/US3921031A/en not_active Expired - Lifetime
- 1974-01-28 BE BE140216A patent/BE810216A/en not_active IP Right Cessation
- 1974-01-28 ES ES422685A patent/ES422685A1/en not_active Expired
- 1974-01-28 DE DE2403893A patent/DE2403893A1/en not_active Withdrawn
- 1974-01-28 GB GB383674A patent/GB1466697A/en not_active Expired
- 1974-01-28 SE SE7401076A patent/SE398021B/en unknown
- 1974-01-28 IT IT67225/74A patent/IT1009122B/en active
- 1974-01-29 JP JP1212274A patent/JPS5133549A/en active Granted
- 1974-01-29 NL NL7401168A patent/NL7401168A/xx not_active Application Discontinuation
- 1974-02-28 SU SU741995635A patent/SU641890A3/en active
Also Published As
Publication number | Publication date |
---|---|
ES422685A1 (en) | 1977-11-16 |
BE810216A (en) | 1974-05-16 |
SU641890A3 (en) | 1979-01-05 |
JPS5133549A (en) | 1976-03-22 |
SE398021B (en) | 1977-11-28 |
FR2215699B1 (en) | 1976-04-30 |
DE2403893A1 (en) | 1974-08-22 |
GB1466697A (en) | 1977-03-09 |
AU6492474A (en) | 1975-07-31 |
US3921031A (en) | 1975-11-18 |
JPS5721822B2 (en) | 1982-05-10 |
FR2215699A1 (en) | 1974-08-23 |
NL7401168A (en) | 1974-08-01 |
IT1009122B (en) | 1976-12-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PL | Patent ceased |