AT138732B - Procedure for making the glasses colored with the rare earth oxides red. - Google Patents

Procedure for making the glasses colored with the rare earth oxides red.

Info

Publication number
AT138732B
AT138732B AT138732DA AT138732B AT 138732 B AT138732 B AT 138732B AT 138732D A AT138732D A AT 138732DA AT 138732 B AT138732 B AT 138732B
Authority
AT
Austria
Prior art keywords
red
procedure
making
rare earth
earth oxides
Prior art date
Application number
Other languages
German (de)
Original Assignee
Auergesellschaft Gmbh
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 Auergesellschaft Gmbh filed Critical Auergesellschaft Gmbh
Application granted granted Critical
Publication of AT138732B publication Critical patent/AT138732B/en

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  • Glass Compositions (AREA)

Description

  

   <Desc/Clms Page number 1> 
 
 EMI1.1 
 



   Die Glasfärbungen mittels der Oxyde der seltenen Erden sind charakterisiert durch eine Reihe verhältnismässig schmaler und scharfer Absorptionsbanden. Dies bedingt den besonderen Charakter der Färbung, der darin besteht, dass ein Dichroismus auftritt, der von der Dicke des Glases abhängig ist. 



   Es ist nun gefunden worden, dass man diese Färbungen der seltenen Erden insbesondere mit   Neodym-bzw.   Praseodymoxyd oder deren Gemischen, ohne ihren besonderen Charakter, der ihre Schönheit und ihren Wert darstellt, zu beeinträchtigen, nach Rot zu   nuancieren kann durch   Zusatz der Kolloiden, das Glas rot färbenden, bekannten Mittel, also durch Gold, Selen oder Kupferoxydul in derartig kleinen Mengen, dass noch eine Durchlässigkeit für Blau erhalten bleibt. Man erhält so z. B. mit Neodymoxyd, das sonst das Glas blau bis violett färbt, wunderschöne Purpurtöne durch einen geringen Zusatz der oben gekennzeichneten roten Glasfarben.

   Mit Praseodymoxydhydrat, das das Glas sonst grün färbt, bekommt man schöne gelbe bis rot-orange Töne. 
 EMI1.2 
 den Nuance ab, sie ist fast stets recht klein. 

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



   <Desc / Clms Page number 1>
 
 EMI1.1
 



   The glass colorations by means of the oxides of the rare earths are characterized by a series of relatively narrow and sharp absorption bands. This gives rise to the special character of the color, which consists in the fact that dichroism occurs, which depends on the thickness of the glass.



   It has now been found that these colors of the rare earths can be used in particular with neodymium or. Praseodymium oxide or mixtures thereof, without impairing their special character, which represents their beauty and value, can be nuanced to red by adding the colloids, known agents that color the glass red, i.e. gold, selenium or copper oxide in such small quantities that there is still a permeability for blue. One obtains z. B. with neodymium oxide, which otherwise colors the glass blue to violet, beautiful purple tones through a small addition of the red glass colors indicated above.

   With praseodymium hydrate, which otherwise colors the glass green, you get beautiful yellow to red-orange tones.
 EMI1.2
 the shade, it is almost always quite small.

** WARNING ** End of DESC field may overlap beginning of CLMS **.

 

Claims (1)

PATENT-ANSPRUCH : Verfahren, um die mit den Oxyden der seltenen Erden gefärbten Gläser unter Wahrung der Mehrfarbigkeit nach Rot zu nuancieren, dadurch gekennzeichnet, dass man hiezu die an sich bekannten, das Glas rot färbenden kolloidalen Farben Gold, Kupferoxydul oder Selen in derartig kleinen Mengen zusetzt, dass noch eine Durchlässigkeit im Blau erhalten bleibt. **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. PATENT CLAIM: Process to nuance the glasses colored with the oxides of the rare earths while preserving the multicolor to red, characterized in that the colloidal colors gold, copper oxide or selenium known per se and coloring the glass red are added in such small amounts that there is still a permeability in the blue. ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT138732D 1929-09-12 1930-07-30 Procedure for making the glasses colored with the rare earth oxides red. AT138732B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE138732X 1929-09-12

Publications (1)

Publication Number Publication Date
AT138732B true AT138732B (en) 1934-09-10

Family

ID=5667452

Family Applications (1)

Application Number Title Priority Date Filing Date
AT138732D AT138732B (en) 1929-09-12 1930-07-30 Procedure for making the glasses colored with the rare earth oxides red.

Country Status (1)

Country Link
AT (1) AT138732B (en)

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