Polyethylene composition with improved stress crack...

Details Polyethylene composition with improved stress crack... Polyethylene composition with improved stress crack...

2011-01-25

2011-01-25

Nutter, Nathan M (Department: 1796)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C525S191000, C525S240000

Reexamination Certificate

active

07875691

ABSTRACT:
The present invention relates to a polyethylene composition wherein (i) the composition has an MFR2 of 0.05 to 100 g/10 min, (ii) the environmental stress crack resistance ESCR measured according to the FNCT at 12 MPa and 23° C. in hours and the E-modulus EM measured according to ISO 527-2: 1993 satisfy the following relation: ESCR>−0.244 EM h/MPa+416 h (I).

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