AT131747B - Flexible, unbreakable record. - Google Patents

Flexible, unbreakable record.

Info

Publication number
AT131747B
AT131747B AT131747DA AT131747B AT 131747 B AT131747 B AT 131747B AT 131747D A AT131747D A AT 131747DA AT 131747 B AT131747 B AT 131747B
Authority
AT
Austria
Prior art keywords
record
unbreakable
flexible
panels
desc
Prior art date
Application number
Other languages
German (de)
Original Assignee
Rheinisch Westfaelische Spreng
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 Rheinisch Westfaelische Spreng filed Critical Rheinisch Westfaelische Spreng
Application granted granted Critical
Publication of AT131747B publication Critical patent/AT131747B/en

Links

Landscapes

  • Compositions Of Macromolecular Compounds (AREA)
  • Heat Sensitive Colour Forming Recording (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



  Biegsame,   unzerbrechliche Schallplatte.   



   Die Erfindung betrifft eine Schallplatte, die aus Kondensationsprodukten besteht, die aus Polyvinylalkoholen und Aldehyden in Gegenwart von sauer reagierender Stoffen gewonnen sind. Die Platten werden unter Hitze und Druck hergestellt, ohne dass der Masse Fiillstoffe zugesetzt werden ; ein Zusatz hochsiedender Plastifizierungsmittel ist aber vorteilhaft. 



   Die neuen Platten sind infolge der Festigkeit und Zähigkeit des Materials vollkommen unzer- 
 EMI1.1 
 apparaten mitgenommen werden. Gleichzeitig wird infolge des geringen Materialverbrauchs ein niedriger Preis der Platten erzielt. Infolge der Abwesenheit von Füllstoffen ist die Tonwiedergabe bei den neuen Platten ausserordentlich rein, infolge der   Zähigkeit   des Materials der Plattenversehleiss ungewöhnlich gering. 



   PATENT-ANSPRÜCHE : 
 EMI1.2 
 

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



   <Desc / Clms Page number 1>
 



  Flexible, unbreakable record.



   The invention relates to a record which consists of condensation products which are obtained from polyvinyl alcohols and aldehydes in the presence of acidic substances. The panels are produced under heat and pressure without adding fillers to the mass; however, the addition of high-boiling plasticizers is advantageous.



   The new panels are completely undamaged due to the strength and toughness of the material.
 EMI1.1
 devices are taken along. At the same time, a low price of the panels is achieved due to the low material consumption. As a result of the absence of fillers, the sound reproduction of the new records is extraordinarily pure, and due to the toughness of the material the record wear is unusually low.



   PATENT CLAIMS:
 EMI1.2
 

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

Claims (1)

**WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT131747D 1930-10-30 1931-10-19 Flexible, unbreakable record. AT131747B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE131747X 1930-10-30

Publications (1)

Publication Number Publication Date
AT131747B true AT131747B (en) 1933-02-10

Family

ID=5664193

Family Applications (1)

Application Number Title Priority Date Filing Date
AT131747D AT131747B (en) 1930-10-30 1931-10-19 Flexible, unbreakable record.

Country Status (1)

Country Link
AT (1) AT131747B (en)

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