NO145577B - PROCEDURE FOR PREPARING POLYVINYL ACETATE DISPERSIONS - Google Patents
PROCEDURE FOR PREPARING POLYVINYL ACETATE DISPERSIONS Download PDFInfo
- Publication number
- NO145577B NO145577B NO762164A NO762164A NO145577B NO 145577 B NO145577 B NO 145577B NO 762164 A NO762164 A NO 762164A NO 762164 A NO762164 A NO 762164A NO 145577 B NO145577 B NO 145577B
- Authority
- NO
- Norway
- Prior art keywords
- capacitor
- contact
- motor
- voltage
- limiting resistor
- Prior art date
Links
- 239000006185 dispersion Substances 0.000 title 1
- 229920002689 polyvinyl acetate Polymers 0.000 title 1
- 239000011118 polyvinyl acetate Substances 0.000 title 1
- 239000003990 capacitor Substances 0.000 claims description 33
- 230000001105 regulatory effect Effects 0.000 claims description 4
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F18/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an acyloxy radical of a saturated carboxylic acid, of carbonic acid or of a haloformic acid
- C08F18/02—Esters of monocarboxylic acids
- C08F18/04—Vinyl esters
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Polymerisation Methods In General (AREA)
- Polymerization Catalysts (AREA)
Description
Anordning for tilveiebringelse av en styrespenning for regulering av en elektromotors omdreiningstall. Device for providing a control voltage for regulating the speed of an electric motor.
Foreliggende oppfinnelse angår en anordning for tilveiebringelse av en styrespenning for regulering av en elektromotors omdreiningstall i forhold til en annen elektromotors omdreiningstall, hvor det i forbindelse med hver motors aksel er anordnet en vekselkontakt eller en styreinnret-ning for en vekselkontakt. The present invention relates to a device for providing a control voltage for regulating the rotational speed of an electric motor in relation to the rotational speed of another electric motor, where a change-over contact or a control device for a change-over contact is arranged in connection with each motor's shaft.
Ved drift av en maskin skal ofte en When operating a machine, one must often
samarbeidende maskin drives med en hastighet som står i et visst forhold til den første maskins hastighet, f.eks. en tran-sportør i forhold til en produksjons-maskin. cooperating machine is operated at a speed which is in a certain relation to the speed of the first machine, e.g. a transporter in relation to a production machine.
Hensikten med oppfinnelsen er å løse The purpose of the invention is to solve
denne oppgave på en ny og enkel måte, og det oppnås ifølge oppfinnelsen ved at vekselkontakten for hovedmotoren, i den ene, stilling forbinder en spenningskilde med en kondensator over en begrensningsmotstand og i den andre stilling forbinder this task in a new and simple way, and it is achieved according to the invention by the change-over contact for the main motor, in one position, connecting a voltage source with a capacitor across a limiting resistor and in the other position connecting
den første kondensator med en andre kondensator over den samme begrensningsmotstand, og hvilken vekselkontakt for føl-gemotoren i den ene stilling forbinder en annen motsatt polet spenningskilde med en tredje kondensator over en andre begrensningsmotstand og i den andre stilling forbinder den tredje kondensator som har motsatt polaritet i forhold til den andre kondensator, med den andre kondensator over den andre begrensningsmotstand, idet styrespenningen tas ut over den andre kondensator. the first capacitor with a second capacitor across the same limiting resistor, and which alternating contact for the following motor in one position connects another voltage source of opposite polarity to a third capacitor across a second limiting resistor and in the other position connects the third capacitor which has the opposite polarity in relation to the second capacitor, with the second capacitor across the second limiting resistor, the control voltage being taken out across the second capacitor.
Fortrinnsvis er spenningskildenes spenninger meget større enn styrespenningen. Preferably, the voltages of the voltage sources are much greater than the control voltage.
Styrespenningen kan tenkes brukt f.eks. til en fasevender som igjen styrer en styrt likeretter som regulerer strømmen til følgemotoren. Styrespenningen kan også tenkes brukt til å styre en transistor som regulerer strømmen til følgemotoren. The control voltage can be used e.g. to a phase inverter which in turn controls a controlled rectifier which regulates the current to the following motor. The control voltage can also be used to control a transistor that regulates the current to the follower motor.
Et utførelseseksempel på oppfinnelsen skal nedenfor beskrives nærmere under henvisning til tegningen, som skjematisk viser en anordning ifølge oppfinnelsen. An embodiment of the invention will be described in more detail below with reference to the drawing, which schematically shows a device according to the invention.
På hovedmotorens A aksel er anbrakt en styrekam som betjener en vekselkontakt K 1 som ved styrekammens rotasjon avvekslende bringer kontakten Kli kontakt med en faststående kontakt K 2 resp. K 3. Kontakten K 1 er forbundet med en kondensator C 1 over en lade- resp. utladningsmotstand R 1, idet kondensatorens C 1 andre elektrode er forbundet med den negative klemme av en matespenningskilde V 1 hvis positive klemme er forbundet med kontakten K 2. On the main motor's A shaft, a control cam is placed which operates a changeover contact K 1 which, when the control cam rotates, alternately brings the contact Kli into contact with a fixed contact K 2 resp. K 3. The contact K 1 is connected to a capacitor C 1 over a charging or discharge resistance R 1, the second electrode of the capacitor C 1 being connected to the negative terminal of a supply voltage source V 1 whose positive terminal is connected to the contact K 2.
Når kontakten K 1 er i kontakt med kontakten K 2 vil kondensatoren C 1 lades over motstanden R 1, og når kontakten K 1 ved motorens A rotasjon bringes i kontakt med kontakten K 3 vil en kondensator C 3, som er forbundet med kontakten K 3,. bli ladet fra kondensatoren C 1 over motstanden R 1. Kondensatorens C 3 andre elektrode er forbundet med den negative elektrode av kondensatoren C 1. Dette gjentar seg inntil spenningen Vs over kondensatoren C 3 er stor nok til å starte følgemoto-ren B. When the contact K 1 is in contact with the contact K 2, the capacitor C 1 will be charged across the resistor R 1, and when the contact K 1 during the rotation of the motor A is brought into contact with the contact K 3, a capacitor C 3, which is connected to the contact K 3 ,. be charged from the capacitor C 1 across the resistor R 1. The second electrode of the capacitor C 3 is connected to the negative electrode of the capacitor C 1. This is repeated until the voltage Vs across the capacitor C 3 is large enough to start the follower motor B.
Følgemotoren B har en lignende kon-taktstyreanordning som hovedmotoren A. Vekselkontakten L 1 som styres av følge-motoren B bringes avvekslende i kontakt med faste kontakter L 2 resp. L 3. Kontakten L 1 er forbundet med en kondensator C 2, som fortrinnsvis er variabel, over en lade- resp. utladningsmotstand R 2, idet kondensatorens C 2 andre elektrode er forbundet med forbindelsen mellom konden-satorene C 1 og C 3 og med den positive klemme av en spenningskilde V 2, hvis negative klemme er forbundet med kontakten L 2. Når kontakten L 1 er i kontakt med kontakten L 2 lades kondensatoren C 2 over motstanden R 2, men med motsatt polaritet av ladningen på kondensatoren C 1. Når kontakten L 1 bringes i kontakt med kontakten L 3 vil kondensatoren C 3 tappes for en del av sin spenning. The follower motor B has a similar contact control device as the main motor A. The changeover contact L 1 which is controlled by the follower motor B is alternately brought into contact with fixed contacts L 2 resp. L 3. The contact L 1 is connected to a capacitor C 2, which is preferably variable, over a charging or discharge resistance R 2, the second electrode of the capacitor C 2 being connected to the connection between the capacitors C 1 and C 3 and to the positive terminal of a voltage source V 2, whose negative terminal is connected to the contact L 2. When the contact L 1 is in contact with the contact L 2, the capacitor C 2 is charged across the resistor R 2, but with the opposite polarity of the charge on the capacitor C 1. When the contact L 1 is brought into contact with the contact L 3, the capacitor C 3 will be drained of part of its voltage.
Når omdreiningshastigheten for hovedmotoren A øker, lades kondensatoren C 3 og det fører til en økning av følgemotorens B omdreiningshastighet. Ved å variere kondensatoren C 2 kan omdreiningshastigheten for følgemotoren B reguleres, slik at den roterer hurtigere, likt med eller lang-sommere enn hovedmotoren A. When the rotational speed of the main motor A increases, the capacitor C 3 is charged and this leads to an increase in the rotational speed of the follower motor B. By varying the capacitor C 2 , the speed of rotation of the follower motor B can be regulated, so that it rotates faster, equal to or slower than the main motor A.
Spenningene V 1 og V 2 velges fortrinnsvis meget større enn den frembrakte styrespenning Vs, på grunn av at ladning og utladning skal bli tilnærmet lik, enten spenningen Vs er minimal eller maksimal. The voltages V 1 and V 2 are preferably chosen to be much larger than the produced control voltage Vs, due to the fact that charge and discharge must be approximately equal, whether the voltage Vs is minimal or maximal.
Anordningen ifølge oppfinnelsen kan anvendes i. forbindelse med flere enn to motorer, og kan anbringes mellom hver av disse eller mellom hovedmotoren og hver av følgemotorene. The device according to the invention can be used in connection with more than two engines, and can be placed between each of these or between the main engine and each of the following engines.
Det er klart at kondensatoren C 1 også kan utformes variabel og derved kan regu-leringsområdet utvides betraktelig. It is clear that the capacitor C 1 can also be made variable and thereby the regulation range can be extended considerably.
Claims (2)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT24703/75A IT1039354B (en) | 1975-06-24 | 1975-06-24 | PROCEDURE FOR THE PRODUCTION OF POLYACETOVINYL DISPERSIONS AND THUS OBTAINED DISPERSIONS |
Publications (3)
Publication Number | Publication Date |
---|---|
NO762164L NO762164L (en) | 1976-12-28 |
NO145577B true NO145577B (en) | 1982-01-11 |
NO145577C NO145577C (en) | 1982-04-21 |
Family
ID=11214455
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO762164A NO145577C (en) | 1975-06-24 | 1976-06-22 | PROCEDURE FOR PREPARING POLYVINYL ACETATE DISPERSIONS |
Country Status (19)
Country | Link |
---|---|
JP (1) | JPS5952167B2 (en) |
AT (1) | AT353005B (en) |
BE (1) | BE843350A (en) |
CH (1) | CH623834A5 (en) |
DE (1) | DE2625859B2 (en) |
DK (1) | DK145894C (en) |
EG (1) | EG12447A (en) |
ES (1) | ES449476A1 (en) |
FI (1) | FI61501C (en) |
FR (1) | FR2315509A1 (en) |
GB (1) | GB1517067A (en) |
IE (1) | IE43835B1 (en) |
IT (1) | IT1039354B (en) |
LU (1) | LU75201A1 (en) |
NL (1) | NL7606870A (en) |
NO (1) | NO145577C (en) |
PT (1) | PT65260B (en) |
SE (1) | SE422327B (en) |
TR (1) | TR18814A (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57100107A (en) * | 1980-12-12 | 1982-06-22 | Daicel Chem Ind Ltd | Preparation of adhesive |
JPS59109568A (en) * | 1982-12-14 | 1984-06-25 | Daicel Chem Ind Ltd | High-speed adhesive for paper |
CA1261538A (en) * | 1984-07-19 | 1989-09-26 | Ronald W. Novak | Aldehyde or imine oxygen scavengers for vinyl polymerizations |
GB8729702D0 (en) * | 1987-12-21 | 1988-02-03 | Unilever Plc | Emulsion polymerisation |
JP2707597B2 (en) * | 1988-05-16 | 1998-01-28 | 三井石油化学工業株式会社 | Method for producing fluorine-containing polyolefin |
DE102006006579A1 (en) * | 2006-02-13 | 2007-08-23 | Wacker Polymer Systems Gmbh & Co. Kg | Process for the production of molded parts from cork particles |
US9733003B2 (en) | 2012-12-27 | 2017-08-15 | OXEN, Inc. | Ice maker |
JP2019031581A (en) * | 2015-12-28 | 2019-02-28 | 株式会社クラレ | Low polymerization degree vinyl alcohol-based polymer powder having excellent color tone and production method thereof |
CN108219043A (en) * | 2016-12-21 | 2018-06-29 | 中国石化集团四川维尼纶厂 | A kind of preparation method of polyvinyl acetate emulsion |
-
1975
- 1975-06-24 IT IT24703/75A patent/IT1039354B/en active
-
1976
- 1976-06-09 DE DE2625859A patent/DE2625859B2/en not_active Withdrawn
- 1976-06-15 FR FR7618070A patent/FR2315509A1/en active Granted
- 1976-06-16 SE SE7606890A patent/SE422327B/en unknown
- 1976-06-16 DK DK269576A patent/DK145894C/en not_active IP Right Cessation
- 1976-06-18 ES ES449476A patent/ES449476A1/en not_active Expired
- 1976-06-20 EG EG363/76A patent/EG12447A/en active
- 1976-06-21 FI FI761789A patent/FI61501C/en not_active IP Right Cessation
- 1976-06-21 LU LU75201A patent/LU75201A1/xx unknown
- 1976-06-22 TR TR18814A patent/TR18814A/en unknown
- 1976-06-22 NO NO762164A patent/NO145577C/en unknown
- 1976-06-23 GB GB26003/76A patent/GB1517067A/en not_active Expired
- 1976-06-23 NL NL7606870A patent/NL7606870A/en not_active Application Discontinuation
- 1976-06-23 PT PT65260A patent/PT65260B/en unknown
- 1976-06-23 AT AT458276A patent/AT353005B/en not_active IP Right Cessation
- 1976-06-24 CH CH812276A patent/CH623834A5/en not_active IP Right Cessation
- 1976-06-24 JP JP51073914A patent/JPS5952167B2/en not_active Expired
- 1976-06-24 IE IE1373/76A patent/IE43835B1/en unknown
- 1976-06-24 BE BE168261A patent/BE843350A/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EG12447A (en) | 1979-03-31 |
DK269576A (en) | 1976-12-25 |
DE2625859A1 (en) | 1976-12-30 |
IE43835B1 (en) | 1981-06-03 |
FR2315509B1 (en) | 1979-08-31 |
NL7606870A (en) | 1976-12-28 |
GB1517067A (en) | 1978-07-12 |
TR18814A (en) | 1977-11-01 |
ES449476A1 (en) | 1977-07-16 |
IT1039354B (en) | 1979-12-10 |
PT65260A (en) | 1976-07-01 |
SE422327B (en) | 1982-03-01 |
DK145894B (en) | 1983-04-05 |
IE43835L (en) | 1976-12-24 |
AT353005B (en) | 1979-10-25 |
BE843350A (en) | 1976-12-24 |
FI61501C (en) | 1982-08-10 |
NO762164L (en) | 1976-12-28 |
JPS524585A (en) | 1977-01-13 |
CH623834A5 (en) | 1981-06-30 |
ATA458276A (en) | 1979-03-15 |
JPS5952167B2 (en) | 1984-12-18 |
DK145894C (en) | 1983-09-19 |
FI61501B (en) | 1982-04-30 |
PT65260B (en) | 1977-12-07 |
SE7606890L (en) | 1976-12-25 |
DE2625859B2 (en) | 1980-10-30 |
FI761789A (en) | 1976-12-25 |
FR2315509A1 (en) | 1977-01-21 |
LU75201A1 (en) | 1977-02-17 |
NO145577C (en) | 1982-04-21 |
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