Stock material or miscellaneous articles – Composite – Of addition polymer from unsaturated monomers
Reexamination Certificate
2008-01-15
2008-01-15
Ahmed, Sheeba (Department: 1773)
Stock material or miscellaneous articles
Composite
Of addition polymer from unsaturated monomers
C428S213000, C428S910000, C264S173150, C442S334000, C442S378000
Reexamination Certificate
active
10483927
ABSTRACT:
The invention is directed to monoaxially drawn polyolefin multilayer film, tape or yarn of the AB or ABA type, having a stretch ratio of more than 12, having an E-modulus of at least 10 GPa, substantially consisting of a central layer (B) of a polyolefin selected from polyethylene and polypropylene, and one or two other layers (A) of a polyole fin from the same class as the material of the central layer B, the DSC melting point of the material of the said other layers (A) being lower than the DSC melting point of the material of the said central layer (B), wherein the central layer (B) is between 50 and 99 wt. % of the material and the other layers (A) between 1 and 50 wt. %. The present invention further relates to a method of manufacturing such a tape, film or yarn.
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Encyclopedia of Polymer Science and Engineering, “Polypropylene” (1985 ed), pp. 477 & 515.
Jacobs Johannes Antonius Joseph
Loos Joachim
Peijs Antonius Andreas Johannes Maria
Schimanski Tilo
Ahmed Sheeba
Lankhorst Indutech B.V.
Pearne & Gordon LLP
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