AT237888B - Polyolefin mixture for the production of moldings - Google Patents

Polyolefin mixture for the production of moldings

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Publication number
AT237888B
AT237888B AT35762A AT35762A AT237888B AT 237888 B AT237888 B AT 237888B AT 35762 A AT35762 A AT 35762A AT 35762 A AT35762 A AT 35762A AT 237888 B AT237888 B AT 237888B
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AT
Austria
Prior art keywords
sep
mol
mixture
moldings
production
Prior art date
Application number
AT35762A
Other languages
German (de)
Original Assignee
Hoechst Ag
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.)
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Publication date
Application filed by Hoechst Ag filed Critical Hoechst Ag
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Publication of AT237888B publication Critical patent/AT237888B/en

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Description

  

   <Desc/Clms Page number 1> 
 



  Polyolefinmischung zur Herstellung   von Formkörpern   
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   Die Kerbschlagzähigkeit wurde nach DIN 53 453 an 4 mm dicken Prüfstäben gemessen. 



   Die Kugeldruckhärte wurde nach DIN   57302   an Pressplatten von 5 mm Dicke gemessen. 



     Die reduzierte Viskosität (RSV)   wurde bei 1350 in einer 0,1%igen Dekahydronaphthalinlösung in einem   Ubbelohde-Viskosimeter I   bestimmt. 



   Tabelle I zeigt die Messergebnisse der Mischung im Vergleich zu den Werten des Mischpolymerisats hoher Dichte. 



   Tabelle I 
 EMI3.1 
 
<tb> 
<tb> Mischpolymerisat <SEP> hoher <SEP> Dichte <SEP> Mischung <SEP> der <SEP> beiden <SEP> Mischaus <SEP> 96 <SEP> Mol-% <SEP> Äthylen <SEP> und <SEP> polymerisate <SEP> gemäss
<tb> 4 <SEP> Mol-% <SEP> Buten- <SEP> (l) <SEP> Beispiel <SEP> 1
<tb> Dichte <SEP> g/cm3 <SEP> 0,940 <SEP> 0,934
<tb> RSV <SEP> 1, <SEP> 8 <SEP> 2,0
<tb> Belltest <SEP> in <SEP> Stunden <SEP> 12 <SEP> 123
<tb> Reissdehnung <SEP> % <SEP> 430 <SEP> 1020
<tb> Kerbschlagzähigkeit
<tb> kgcm/cm2 <SEP> 3, <SEP> 1 <SEP> 21
<tb> Kugeldruckhärte <SEP> 10"
<tb> kg/cm2 <SEP> 380 <SEP> 320
<tb> 
 
Beispiel 2 :

   Wie in Beispiel 1 beschrieben, wird eine Mischung aus 90 Gew.-Teilen eines wischpolymerisats hoher Dichte, in das ausser Äthylen noch 2   Mol-%   Propylen einpolymerisiert waren (die mechanischen Werte sind in der Tabelle II angeführt), mit 10   Gew.-Teilen   eines amorphen   Mischpolymeri-   sats aus 70   Mol-%   Äthylen und 30   Mol-   Propylen hergestellt. Aus dieser Mischung wurden Pressplatten und Prüfkörper zur Messung der mechanischen Eigenschaften gemacht. Tabelle II zeigt die Messergebnisse der Mischung im Vergleich zu den Werten des Mischpolymerisats hoher Dichte. 



   Tabelle II 
 EMI3.2 
 
<tb> 
<tb> Mischpolymerisat <SEP> hoher <SEP> Dichte <SEP> Mischung <SEP> der <SEP> beiden <SEP> Mischaus <SEP> 98 <SEP> Mol- <SEP> Äthylen <SEP> und <SEP> polymerisate <SEP> gemäss
<tb> 2 <SEP> Mol-% <SEP> Propylen <SEP> Beispiel <SEP> 2
<tb> Dichte <SEP> g/cm3 <SEP> 0, <SEP> 95 <SEP> 0, <SEP> 94
<tb> RSV <SEP> l, <SEP> 7 <SEP> l, <SEP> 9
<tb> Belltest <SEP> in <SEP> Stunden <SEP> 4 <SEP> 60
<tb> Reissdehnung <SEP> % <SEP> 100 <SEP> 800
<tb> Kerbschlagzähigkeit
<tb> kgcm/cm2 <SEP> 2. <SEP> 8 <SEP> ohne <SEP> Bruch
<tb> Kugeldruckhärte <SEP> 10"
<tb> kg/cm2 <SEP> 490 <SEP> 380
<tb> 
 
PATENTANSPRÜCHE : 
1.

   Polyolefinmischung zur Herstellung von Formkörpern mit hoher Schlagfestigkeit und Härte und geringer Spannungsrisskorrosion, bestehend aus einem Mischpolymerisat des Äthylens hoher Dichte zwischen 0, 93-0, 97, das aus 99,7-90 Mol-%, vorzugsweise 99,7-95 Mol-% Äthylen und 0,3-10 Mol-%, vorzugsweise 0,3-5 Mol-% höherer Homologen des Äthylens mit 3-18 C-Atomen hergestellt ist und einem amorphen oder teilweise amorphen Mischpolymerisat aus Äthylen und seinen höheren Homologen.



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  Polyolefin mixture for the production of moldings
 EMI1.1
 

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   The notched impact strength was measured in accordance with DIN 53 453 on test rods 4 mm thick.



   The ball indentation hardness was measured in accordance with DIN 57302 on press plates 5 mm thick.



     The reduced viscosity (RSV) was determined at 1350 in a 0.1% strength decahydronaphthalene solution in an Ubbelohde Viscometer I.



   Table I shows the measurement results of the mixture in comparison with the values of the high-density copolymer.



   Table I.
 EMI3.1
 
<tb>
<tb> Mixed polymer <SEP> high <SEP> density <SEP> Mixture <SEP> of the <SEP> two <SEP> mixtures of <SEP> 96 <SEP> mol% <SEP> ethylene <SEP> and <SEP> polymers <SEP> according to
<tb> 4 <SEP> mol% <SEP> butene- <SEP> (l) <SEP> example <SEP> 1
<tb> Density <SEP> g / cm3 <SEP> 0.940 <SEP> 0.934
<tb> RSV <SEP> 1, <SEP> 8 <SEP> 2.0
<tb> Barking test <SEP> in <SEP> hours <SEP> 12 <SEP> 123
<tb> Elongation at break <SEP>% <SEP> 430 <SEP> 1020
<tb> notched impact strength
<tb> kgcm / cm2 <SEP> 3, <SEP> 1 <SEP> 21
<tb> Ball indentation hardness <SEP> 10 "
<tb> kg / cm2 <SEP> 380 <SEP> 320
<tb>
 
Example 2:

   As described in Example 1, a mixture of 90 parts by weight of a high-density wiped polymer in which 2 mol% of propylene were polymerized in addition to ethylene (the mechanical values are given in Table II), with 10 parts by weight an amorphous copolymer made from 70 mol% ethylene and 30 mol propylene. Press plates and test specimens for measuring the mechanical properties were made from this mixture. Table II shows the measurement results of the mixture in comparison with the values of the high-density copolymer.



   Table II
 EMI3.2
 
<tb>
<tb> Mixed polymer <SEP> high <SEP> density <SEP> Mixture <SEP> of the <SEP> two <SEP> mixtures of <SEP> 98 <SEP> mol- <SEP> ethylene <SEP> and <SEP> polymers < SEP> according to
<tb> 2 <SEP> mol% <SEP> propylene <SEP> example <SEP> 2
<tb> Density <SEP> g / cm3 <SEP> 0, <SEP> 95 <SEP> 0, <SEP> 94
<tb> RSV <SEP> l, <SEP> 7 <SEP> l, <SEP> 9
<tb> Barking test <SEP> in <SEP> hours <SEP> 4 <SEP> 60
<tb> Elongation at break <SEP>% <SEP> 100 <SEP> 800
<tb> notched impact strength
<tb> kgcm / cm2 <SEP> 2. <SEP> 8 <SEP> without <SEP> break
<tb> Ball indentation hardness <SEP> 10 "
<tb> kg / cm2 <SEP> 490 <SEP> 380
<tb>
 
PATENT CLAIMS:
1.

   Polyolefin mixture for the production of moldings with high impact strength and hardness and low stress corrosion cracking, consisting of a copolymer of high density ethylene between 0.93-0.97, which consists of 99.7-90 mol%, preferably 99.7-95 mol% % Ethylene and 0.3-10 mol%, preferably 0.3-5 mol%, of higher homologues of ethylene with 3-18 carbon atoms and an amorphous or partially amorphous copolymer of ethylene and its higher homologues.

 

Claims (1)

2. Mischung nach Anspruch 1, enthaltend 1-50 Gew.- o (bezogen auf die Gesamtmischung) eines amorphen oder teilweise amorphen Mischpolymerisats, das 30-100 Gew. -0/0 in n-Heptan lösliche Anteile enthält. 2. Mixture according to claim 1, containing 1-50% by weight (based on the total mixture) of an amorphous or partially amorphous copolymer which contains 30-100% by weight of components soluble in n-heptane.
AT35762A 1961-01-19 1962-01-17 Polyolefin mixture for the production of moldings AT237888B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE237888X 1961-01-19

Publications (1)

Publication Number Publication Date
AT237888B true AT237888B (en) 1965-01-11

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ID=5903334

Family Applications (1)

Application Number Title Priority Date Filing Date
AT35762A AT237888B (en) 1961-01-19 1962-01-17 Polyolefin mixture for the production of moldings

Country Status (1)

Country Link
AT (1) AT237888B (en)

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