NO123814B - - Google Patents

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Publication number
NO123814B
NO123814B NO158289A NO15828965A NO123814B NO 123814 B NO123814 B NO 123814B NO 158289 A NO158289 A NO 158289A NO 15828965 A NO15828965 A NO 15828965A NO 123814 B NO123814 B NO 123814B
Authority
NO
Norway
Prior art keywords
cathode
potential difference
tube
control grid
switching device
Prior art date
Application number
NO158289A
Other languages
Norwegian (no)
Inventor
J F Cotton
M E Heard
Original Assignee
West Point Pepperell Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by West Point Pepperell Inc filed Critical West Point Pepperell Inc
Publication of NO123814B publication Critical patent/NO123814B/no

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/33—Synthetic macromolecular compounds
    • D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/59—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B31/00—Preparation of derivatives of starch
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
    • D06M13/12—Aldehydes; Ketones
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
    • D06M13/12—Aldehydes; Ketones
    • D06M13/127—Mono-aldehydes, e.g. formaldehyde; Monoketones
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/39—Aldehyde resins; Ketone resins; Polyacetals
    • D06M15/423—Amino-aldehyde resins
    • 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
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31942—Of aldehyde or ketone condensation product
    • Y10T428/31949—Next to cellulosic
    • Y10T428/31953—Modified or regenerated cellulose
    • 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
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
    • Y10T442/2369—Coating or impregnation improves elasticity, bendability, resiliency, flexibility, or shape retention of the fabric

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Particle Accelerators (AREA)

Description

Elektronisk apparat for anvendelse med pulser. Electronic device for use with pulses.

Oppfinnelsen angår elektronisk appa-rater som oscillatorer, forsterkere eller sen-dere, bestemt til å anvendes med pulser. The invention relates to electronic devices such as oscillators, amplifiers or transmitters, intended to be used with pulses.

Undertiden forlanges det ved slike ap-parater at et rør skal forbli i hovedsakelig ikke-ledende tilstand under størstedelen av intervallet mellem på hinannen følgende pulser, og at rørets romladningsstrøm bare skal kobles inn når pulsen skal opptre. For eksempel kan utgangskretsen for en puls-sender i et ekko-lodd med vanlig sender-mottager-system være direkte tilsluttet inngangen til en mottagningsforsterker med høy forsterkningsgrad, slik at hvilke som helst støyspenninger fra senderen blir direkte tilført ingangen til denne forster-ker i dens hviletidsrom. I slike tilfeller er det, når der benyttes høy anodespenning for det i senderen anvendte rør, normalt å bruke et rør av høy kvalitet som er spesial-konstruert for å ha den fornødne isolasjon, men der er laget få rør av denne type, og de som finnes, har meget stort tilladelig anodetap sammenlignet med hva som kre-ves for puls-drift. Slike rør er derfor unø-dig store og kostbare. På den annen side vil påkjenningen på røret med en varig påtrykt anodespenning ved anvendelse av mindre og billigere rør føre til gjennomslag av isolasjon i røret allerede ved lave strømverdier. Sometimes it is required in such devices that a tube should remain in a mainly non-conducting state during the majority of the interval between successive pulses, and that the tube's space charge current should only be switched on when the pulse is to occur. For example, the output circuit for a pulse transmitter in an echo sounder with a normal transmitter-receiver system can be directly connected to the input of a receiving amplifier with a high degree of amplification, so that any noise voltages from the transmitter are directly supplied to the input of this amplifier in its resting period. In such cases, when a high anode voltage is used for the tube used in the transmitter, it is normal to use a high-quality tube that is specially designed to have the necessary insulation, but few tubes of this type are made, and they which exist, have a very large permissible anode loss compared to what is required for pulse operation. Such pipes are therefore unnecessarily large and expensive. On the other hand, the stress on the tube with a permanently impressed anode voltage when using smaller and cheaper tubes will lead to breakdown of insulation in the tube already at low current values.

Det er en viktig hensikt med den foreliggende oppfinnelse å skaffe elektronisk apparatur som er bestemt for anvendelse med pulser, og som ved en gitt høyspen-ningsverdi egner seg til å benyttes med mindre rør og derfor kan være billigere og mindre omfangsrik enn kjent apparatur til dette formål. It is an important purpose of the present invention to provide electronic equipment which is intended for use with pulses, and which, at a given high voltage value, is suitable for use with smaller tubes and can therefore be cheaper and less bulky than known equipment for this purpose.

I henhold til den foreliggende oppfin-nélse omfatter et elektronisk apparat for anvendelse med pulser en anordning til mellom et rørs anode og katode å vedlikeholde en potential-differanse som er vesentlig mindre enn toppverdien av denne differense, en anordning til mellom rørets styregitter og katode å vedlikeholde en slik potentialdifferanse at romladningsstrøm-men i røret holdes på en lav verdi, og en koblingsanordning ved hvis påvirkning potentialdifferansen mellom anode og katode økes til toppverdien og, tilnærmelsesvis samtidig, potentialdifferansen mellom styregitter og katode senkes. Koblingsanordningen kan utgjøres av ett eneste kon-taktpar, som er innrettet til å åpnes og sluttes. According to the present invention, an electronic device for use with pulses comprises a device between a tube's anode and cathode to maintain a potential difference which is substantially smaller than the peak value of this difference, a device between the tube's control grid and cathode to maintain such a potential difference that the space charge current in the tube is kept at a low value, and a switching device by whose influence the potential difference between anode and cathode is increased to the peak value and, approximately simultaneously, the potential difference between control grid and cathode is lowered. The coupling device can consist of a single pair of contacts, which are designed to be opened and closed.

Et subsidiært trekk ved oppfinnelsen går ut på en anordning til å sinke senkningen av potentialdifferansen mellom styregitter og katode i forhold til tidspunktet for påvirkning av koblingsanordningen. På denne måte kan det sikres at der ikke går noen sterk romladningsstrøm før en even-tuell prelling av kontaktene er dempet A subsidiary feature of the invention consists of a device for slowing down the lowering of the potential difference between the control grid and the cathode in relation to the time of influence of the switching device. In this way, it can be ensured that no strong room charge current flows before any bouncing of the contacts has been dampened

ned. Pulsen av romladningsstrøm kan ofte down. The pulse of space charge current can often

innrettes til å ha vesentlig kortere varig-het enn slutningen av kontaktene, og på denne måte kan gnistdannelse og slitasje på kontaktene reduseres i sterk grad. arranged to have a significantly shorter duration than the end of the contacts, and in this way spark formation and wear on the contacts can be greatly reduced.

En utførelsesform av oppfinnelsen vil bli beskrevet som eksempel under henvis-ning til tegningen, som viser en del av koblingen for et ekko-lodd hvor oppfinnelsen benyttes, og hvor der anvendes et vanlig sender-mottager-system. An embodiment of the invention will be described as an example with reference to the drawing, which shows part of the connection for an echo sounder where the invention is used, and where a normal transmitter-receiver system is used.

En transduktor (ikke vist) er koblet til en sekundærvikling 10 på en transfor-mator 11 og derved i anodekretsene for to rør 12 og 13. Rørene 12 og 13 er anordnet som oscillatorer, skjønt den nødvendige til-bakekoblingskrets for oscillasjonen ikke er vist fullstendig. Der kan benyttes en vel- A transducer (not shown) is connected to a secondary winding 10 of a transformer 11 and thereby in the anode circuits of two tubes 12 and 13. The tubes 12 and 13 are arranged as oscillators, although the necessary feedback circuit for the oscillation is not shown completely . A well-

kjent oscillatorkrets. Oscillatorfrekvensen er bestemt ved en avstemt krets 14. known oscillator circuit. The oscillator frequency is determined by a tuned circuit 14.

Midtpunktet av primærviklingen på transformatoren 11 er tilsluttet en positiv høyspenningsklemme 20 og via en ohmsk motstand 15, f. eks. på 5 megohm, forbun- The center of the primary winding on the transformer 11 is connected to a positive high-voltage terminal 20 and via an ohmic resistance 15, e.g. of 5 megohms, connected

det med rørenes felles katodeklemme 16, og denne klemme er gjennom en annen mot- that with the tubes' common cathode clamp 16, and this clamp is through another counter-

stand 17, likeledes på 5 megohm, forbun- stand 17, likewise at 5 megohm, connected

det med jord. Motstanden 17 kan kortslut- that with soil. The resistor 17 can short-circuit

tes med en bryter 19 gjennom en induk-sjonsspole 18 til å minske gnistdannelse. with a switch 19 through an induction coil 18 to reduce sparking.

Når bryteren 19 er åpen som vist, har høyspenningen mellom anodene og katod- When the switch 19 is open as shown, the high voltage between the anodes and cathode has

ene i rørene 12 og 13 bare omtrent den halve verdi av spenningen på klemmen 20, one in pipes 12 and 13 only about half the value of the voltage on terminal 20,

som i dette tilfelle f. eks. er 1,2 kilovolt, da motstandene 15 og 17 danner en spennings- as in this case e.g. is 1.2 kilovolts, as resistors 15 and 17 form a voltage

deler. Når bryteren 19 er sluttet, blir imid- parts. When the switch 19 is closed, imid-

lertid klemmen 16 bragt på jordpotential, when terminal 16 is brought to earth potential,

og praktisk talt hele spenningen ved klem- and practically the entire voltage at clamp-

men 20 opptrer over rørene. but 20 acts above the pipes.

Med motstanden 17 er der parallellkob- With the resistor 17, there is a parallel connection

let et tidskonstant-nettverk bestående av en motstand 21 i serie med en kapasitet 22, let a time-constant network consisting of a resistor 21 in series with a capacitance 22,

og forbindelsespunktet mellom denne mot- and the connection point between this counter-

stand og kapasitet er via en krets 23, hvor forskjellige tidskonstanter kan velges ved hjelp av en bryter 24, forbundet med midtpunktet av induktiviteten i svingekretsen 14 og dermed rørenes styregittere. state and capacity are via a circuit 23, where different time constants can be selected using a switch 24, connected to the midpoint of the inductance in the swing circuit 14 and thus the tubes' control grids.

Med bryteren 19 åpen er koblingen i hviletilstand, og når bryteren 19 sluttes, vil ikke bare den fulle høyspenning bli påtrykt rørene, men samtidig også en spenning på With switch 19 open, the connection is in a rest state, and when switch 19 is closed, not only will the full high voltage be applied to the tubes, but at the same time also a voltage of

600 volt i negativ retning opptre over motstanden 21. Ved å påtrykkes rørenes gittere forhindrer denne spenning rørenes oscilla- 600 volts in the negative direction appear across the resistor 21. By applying pressure to the grids of the tubes, this voltage prevents the tubes from oscillating

sjon i en kort tid som er bestemt ved tidskonstanten av 21 og 22, f. eks. 2—3 milli-sekunder. Denne forsinkelse tillater prel- tion for a short time which is determined by the time constant of 21 and 22, e.g. 2-3 milliseconds. This delay allows prel-

lingen ved kontaktene på bryteren 19 å dø ling at the contacts on the switch 19 to die

hen før oscillasjonen begynner. Ved slutten av den tid som er bestemt ved 21, 22, blir styregitterne bragt på slikt potential at kretsen svinger. Varigheten av hver sving-ningspuls som frembringes ved slutning av bryteren 19, er bestemt ved tidskonstanten av den spesielle krets 23 som er valgt av den på forhånd innstilte bryter 24, hvoretter git- until the oscillation begins. At the end of the time determined at 21, 22, the control grids are brought to such a potential that the circuit oscillates. The duration of each oscillating pulse produced by closing the switch 19 is determined by the time constant of the special circuit 23 which is selected by the pre-set switch 24, after which

terne ved hjelp av ladningen på den valgte kapasitet i kretsen 23 blir holdt på tilstrek- terns by means of the charge on the selected capacity in the circuit 23 is kept at sufficient

kelig negativt potential til å forhindre vi- negative potential to prevent vi-

der oscillasjon. På det tidspunkt da lad- there oscillation. At the time when the charge-

ningen på den valgte kapasitet i kretsen 23 the selected capacity in circuit 23

har lekket bort, ville egensvingingen be- has leaked away, the self-oscillation would

gynne påny, hvis det ikke var fordi tidspunktet for åpning av kontaktene 19 var avpasset for å forhindre dette. benefit again, if it were not because the time for opening the contacts 19 was adapted to prevent this.

Når kontaktene 19 åpnes, blir katode- When the contacts 19 are opened, cathode

ne holdt på 600 volt positivt potential i forhold til styregitterne, og videre sving- ne kept a positive potential of 600 volts in relation to the control grids, and further swing-

ning forhindres inntil kontaktene 19 slut- is prevented until the contacts 19 close

tes påny. tested again.

Transduktoren, der som omtalt er til- The transducer, where as discussed is to-

sluttet sekundærviklingen 10 er koblet til en mottager (ikke vist) gjennom en ter-tiærvikling 25 på transformatoren 11. Den- then the secondary winding 10 is connected to a receiver (not shown) through a tertiary winding 25 on the transformer 11. The

ne mottager må ha høy forsterkningsgrad, ne receiver must have a high degree of amplification,

og nivåforskjellen mellom senderpulsens toppeffekt og den minimale ekkosignal- and the level difference between the peak power of the transmitter pulse and the minimal echo signal

effekt som kan oppfanges, kan være så stor som 180 dB. Ved anvendelse av billige mi-niatyr-rør ved 12 og 13 og uten hjelp av den foreliggende oppfinnelse bevirker bit- power that can be picked up can be as large as 180 dB. When using cheap miniature tubes at 12 and 13 and without the aid of the present invention, bit-

te små gjennomslag over rørenes indre iso- te small penetrations over the pipes' internal iso-

lasjon en støy som, skjønt den er svak, fullstendig overdøver mottageren ved full forsterkning. Ved den beskrevne kobling blir imidlertid dette gjennomslag med der- lation a noise which, although faint, completely drowns out the receiver at full amplification. With the described connection, however, this is passed through with there-

av følgende støy forhindret. of the following noise prevented.

Transformatoren 11 er vist forsynt The transformer 11 is shown supplied

med en elektrostatisk skjerm 26, som er forbundet med transformatorkjernen og holdes på et passende potensial, som til- with an electrostatic screen 26, which is connected to the transformer core and maintained at a suitable potential, which

føres en klemme 27 på kjent måte. a clamp 27 is introduced in a known manner.

Claims (4)

1. Elektronisk apparat for anvendelse med pulser, forsynt med en anordning (15, 17) som i det minste i en del av intervallet mellom pulser vedlikeholder mellom ano-den og katoden i et rør (12 eller 13) en potential-differanse som er vesentlig mindre enn toppverdien av denne differanse, samt en koblingsinnretning (19), ved hvis påvirkning potential-differansen mellom anode og katode høynes til toppverdien, karakterisert ved en krets (21, 24, 23) som normalt holder rørets (12 eller 13) styregitter negativt i forhold( til katoden, og som tilnærmelsesvis samtidig med påvirk-ningen av koblingsinnretningen (19) min-sker potential-differansen mellom styregitter og katode.1. Electronic device for use with pulses, provided with a device (15, 17) which, at least in part of the interval between pulses, maintains between the anode and the cathode in a tube (12 or 13) a potential difference which is significantly less than the peak value of this difference, as well as a switching device (19), under the influence of which the potential difference between anode and cathode is raised to the peak value, characterized by a circuit (21, 24, 23) which normally keeps the control grid of the tube (12 or 13) negative in relation to the cathode, and which approximately simultaneously with the influence of the switching device (19) reduces the potential difference between control grid and cathode. 2. Apparat som angitt i påstand 1, karakterisert ved at den nevnte koblingsinnretning (19) utgjøres av et enkelt kontakt-par som er innrettet til å åpnes og sluttes, og som, når det sluttes, tjener til å øke potential-differansen mellom anode og katode og minske potential-differansen mellom gitter og katode.2. Apparatus as stated in claim 1, characterized in that the aforementioned switching device (19) consists of a single pair of contacts which are arranged to be opened and closed, and which, when terminated, serves to increase the potential difference between anode and cathode and decrease the potential difference between grid and cathode. 3. Apparat som angitt i påstand 1 eller 2, karakterisert ved en anordning (21, 22) til å forsinke senkningen av potentialdifferansen mellom styregitter og katode i forhold til tidspunktet for påvirkning av koblingsanordningen.3. Apparatus as stated in claim 1 or 2, characterized by a device (21, 22) to delay the lowering of the potential difference between control grid and cathode in relation to the time of impact of the switching device. 4. Apparat som angitt i påstand 3, hvor rørets (12 eller 13) katode er tilsluttet et uttak på en spenningsdeler (15, 17) inn-koblet mellom klemmer (20, HT-) for til-slutning til en kilde for romladningsstrøm til røret, og koblingsanordningen (19), når den påvirkes, tjener til å kortslutte en passende del (17) av spenningsdeleren, karakterisert ved at anordningen til å forsinke senkningen av potential-differansen mellom styegitter og katode omfatter en kobling som inneholder et tidskonstantnett-verk (21, 22) til å påtrykke rørets (12 eller 13) styregitter den del som har negativt fortegn, av den spenning som frembringes ved kortslutning av den nevnte del (17) av spenningsdeleren (15, 17).4. Apparatus as stated in claim 3, where the cathode of the tube (12 or 13) is connected to an outlet on a voltage divider (15, 17) connected between terminals (20, HT-) for connection to a source of space charge current to the tube, and the switching device (19), when actuated, serves to short-circuit a suitable part (17) of the voltage divider, characterized in that the device for delaying the lowering of the potential difference between the control grid and the cathode comprises a connection which contains a time constant network (21, 22) to apply to the control grid of the tube (12 or 13) the part which has a negative sign, of the voltage produced by short-circuiting the aforementioned part (17) of the voltage divider (15, 17).
NO158289A 1964-06-02 1965-05-31 NO123814B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US37211364A 1964-06-02 1964-06-02
US45103365 US3420696A (en) 1964-06-02 1965-04-26 Aldehyde fixation on polymeric material

Publications (1)

Publication Number Publication Date
NO123814B true NO123814B (en) 1972-01-17

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US (1) US3420696A (en)
AT (2) AT274729B (en)
CH (1) CH557447A (en)
DE (1) DE1469507A1 (en)
DK (1) DK120632B (en)
ES (1) ES313722A1 (en)
FI (1) FI43864B (en)
FR (1) FR1440959A (en)
GB (2) GB1118742A (en)
IL (1) IL23476A (en)
LU (1) LU48722A1 (en)
NL (1) NL143638B (en)
NO (1) NO123814B (en)
OA (1) OA01738A (en)
SE (1) SE325861B (en)

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WO2001073185A2 (en) * 2000-03-29 2001-10-04 The Procter & Gamble Company Methods for improving brightness of fabrics and fabrics of improved brightness
EP1278905A2 (en) * 2000-03-29 2003-01-29 The Procter & Gamble Company Methods for improving water absorbency of fabrics and fabrics with improved properties
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Publication number Publication date
CH727065A4 (en) 1974-07-15
AT268189B (en) 1969-02-10
DK120632B (en) 1971-06-28
GB1118742A (en) 1968-07-03
FR1440959A (en) 1966-06-03
CH557447A (en) 1974-12-31
GB1118741A (en) 1968-07-03
FI43864B (en) 1971-03-31
AT274729B (en) 1969-09-25
SE325861B (en) 1970-07-13
ES313722A1 (en) 1966-06-16
NL6506839A (en) 1965-12-03
IL23476A (en) 1969-03-27
OA01738A (en) 1969-12-15
US3420696A (en) 1969-01-07
NL143638B (en) 1974-10-15
DE1469507A1 (en) 1969-01-23
LU48722A1 (en) 1965-12-01

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