PL75704B2 - - Google Patents

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Publication number
PL75704B2
PL75704B2 PL15625872A PL15625872A PL75704B2 PL 75704 B2 PL75704 B2 PL 75704B2 PL 15625872 A PL15625872 A PL 15625872A PL 15625872 A PL15625872 A PL 15625872A PL 75704 B2 PL75704 B2 PL 75704B2
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PL
Poland
Prior art keywords
water
membrane
emulsifier
dialysis membranes
aqueous dispersion
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Application number
PL15625872A
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Polish (pl)
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Priority to PL15625872A priority Critical patent/PL75704B2/pl
Publication of PL75704B2 publication Critical patent/PL75704B2/pl

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Description

Pierwszenstwo: Zgloszenie ogloszono: 30.05.1973 Opis patentowy opublikowano: 15.01.1975 75704 KI. 12d,1/04 MKP B01d 13/00 CZYTELNIA Urzed* PaW*w#g(* WsMlJ Izimpicn. ¦--, Luuol .: Twórcawynalazku: Wieslaw Lichnowski Uprawniony z patentu tymczasowego: Instytut Badawczo-Projektowy Przemyslu Farb i Lakierów, Gliwice (Polska) Sposób otrzymywania membran dializujacych Przedmiotem wynalazku jest sposób otrzymywania membran dializujacych zwlaszcza do wodorozcienczal¬ nych farb elektroforetycznych.Znany sposób otrzymywania membran dializujacych do wodorozcienczalnych farb elektroforetycznych polega na mieszaniu wlókien nylonowych z masa papierowa i nastepnie formowaniu z tej mieszaniny membrany.Wymaga to jednak stosowania odpowiedniej aparatury a proces przebiega w podwyzszonych temperaturach.Celem wynalazku jest orzymanie elastycznych membran dializujacych zwlaszcza do wodorozcienczalnych farb elektroforetycznych z ogólnie dostepnych surowców droga prostych operacji nie wymagajacych stosowania skomplikowanej aparatury.Zadanie techniczne, które nalezy rozwiazac, polega na dobraniu gramatury tkaniny oraz takim jej nasyceniu zywica dyspersyjna, by otrzymac elastyczna membrane dializujaca. Cel ten zostal osiagniety w ten sposób, ze bawelniai.4 tkanine filtracyjna, zwilzona uprzednio woda destylowana lub dejonizowana nasyca sie wodna dyspersja kopolimeru akrylowo-styrenowego otrzymana droga kopolimeryzacji emulsyjnej zuzyciem emulgatora. Po wysuszeniu w temperaturze 20-30°C i uzyskaniu przezroczystej warstwy kopolimeru, z membra¬ ny wymywa sie emulgator przez zanurzenie w wodzie destylowanej lub dejonizowanej na okres 72 godzin w temperaturze pokojowej, a kapiel wodna wymienia sie kilkakrotnie na swieza. Takotrzymana membrana jest jednolicie matowa na calej powierzchni.Zasadnicza korzyscia techniczna wynikajaca ze stosowania sposobu wedlug wynalazku jest otrzymywanie membran dializujacych z ogólnie dostepnych w kraju surowców droga prostych operacji nie wymagajacych stosowania specjalnej aparatury.Przyklad. Wodna dyspersje kopolimeru akrylowo-styrenowego nanosi sie przez wylewanie na bawel¬ niana tkanine filtracyjna o gramaturze 0,06 g/cm2, zwilzona uprzednio woda destylowana, a nastepnie suszy w temperaturze 25°C przez 24 godziny. Z otrzymanej w ten sposób membrany wymywa sie emulgator przez zanurzenie w wodzie destylowanej na okres 72 godzin w temperaturze pokojowej, z tyra, ze kapiel wodna wymienia sie kilkakrotnie na swieza.Otrzymana membrana o grubosci 1,5 mm jest elastyczna i posiada wlasnosci dializujace.2 75 704 PL PLPriority: Application announced: May 30, 1973 Patent description was published: January 15, 1975 75704 KI. 12d, 1/04 MKP B01d 13/00 READING ROOM Office * PaW * w # g (* WsMlJ Izimpicn. ¦--, Luuol.: Creator of the invention: Wieslaw Lichnowski Temporary patent holder: Research and Design Institute of the Paint and Varnish Industry, Gliwice ( Poland) The method of obtaining dialysis membranes The subject of the invention is a method for the preparation of dialysis membranes, especially for water-soluble electrophoretic paints. The purpose of the invention is to obtain flexible dialysis membranes, especially for water-soluble electrophoretic paints from generally available raw materials, through simple operations that do not require the use of complicated equipment. The technical task to be solved is to select the grammage of the fabric and its saturation with the dispersion resin to obtain an elastic dialysis membrane. This aim was achieved in such a way that the cotton and 4 filter cloth, previously moistened distilled or deionized water are saturated with the aqueous dispersion of acrylic-styrene copolymer obtained by emulsion copolymerization with the use of an emulsifier. After drying at 20-30 ° C. to obtain a transparent copolymer layer, the emulsifier is washed from the membrane by immersion in distilled or deionized water for 72 hours at room temperature, and the water bath is replaced several times with fresh. The membrane thus obtained is uniformly matt over the entire surface. The main technical advantage resulting from the application of the method according to the invention is obtaining dialysis membranes from generally available in the country raw materials by simple operations that do not require the use of special equipment. The aqueous dispersion of the styrene-acrylic copolymer is applied by pouring onto a cotton filter cloth having a basis weight of 0.06 g / cm 2, previously moistened with distilled water, and then dried at 25 ° C for 24 hours. The emulsifier is washed out of the membrane obtained in this way by immersion in distilled water for 72 hours at room temperature, with the water bath being replaced several times with fresh. The resulting membrane, 1.5 mm thick, is flexible and has dialysis properties.2 75 704 PL PL

Claims (1)

1. Zastrzezenie patentowe Sposób otrzymywania membran dializujacych zwlaszcza do wodorozcienczalnych farb elektroforetycz- nych, znamienny tym, ze z wodnej dyspersji kopolimeru akrylowo-styrenowego formuje sie membrane najkorzystniej na tkaninie bawelnianej, suszy w temperaturze 20—30°C i nastepnie wymywa emulgator woda. Prac. Poligraf. UP PRL. Zam. 1641/74 naklad 120+18 Cena 10 zl PL PL1. Patent claim A method of obtaining dialysis membranes, especially for water-soluble electrophoretic paints, characterized in that an aqueous dispersion of a styrene-acrylic copolymer is formed into a membrane, preferably on a cotton fabric, dried at a temperature of 20-30 ° C, and then the emulsifier is washed with water. Wash. Typographer. UP PRL. Order 1641/74 circulation 120 + 18 Price PLN 10 PL PL
PL15625872A 1972-06-26 1972-06-26 PL75704B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL15625872A PL75704B2 (en) 1972-06-26 1972-06-26

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL15625872A PL75704B2 (en) 1972-06-26 1972-06-26

Publications (1)

Publication Number Publication Date
PL75704B2 true PL75704B2 (en) 1974-12-31

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Family Applications (1)

Application Number Title Priority Date Filing Date
PL15625872A PL75704B2 (en) 1972-06-26 1972-06-26

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PL (1) PL75704B2 (en)

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