Patent ID: 11904580
Assignee: BOREALIS AG
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC B  C | IPC B  C

Claim 10:
11. The multilayer blown film according to claim 1, wherein the film has a resistance factor (R-factor) according to formula:, R
   -
   factor
  
  =
  
   
    Tensile
    ⁢
       
    
     
      Modulus
      (
      MD
      )
     
     [
     MPa
     ]
    
    *
    
     
      Tear
      (
      MD
      )
     
     [
     
      N
      /
      mm
     
     ]
    
   
   
    SIT
    [
    
     °
     ⁢
        
     
      C
      .
     
    
    ]
   
  
 

of at least 50 up to 300 wherein the Tensile Modulus in machine direction is measured according to ISO 527-3 at 23° C. on 50 μm multilayer blown film, Tear is the Elmendorf tear strength determined in accordance with ISO 6383/2 measured in machine direction (MD) on a 50 μm multilayer blown film and SIT is the sealing initiation temperature (determined as described in the experimental part) on a 50 μm multilayer blown film.