Grafted isotactic polypropylene obtained by metallocene...

Details Grafted isotactic polypropylene obtained by metallocene... Grafted isotactic polypropylene obtained by metallocene...

2005-05-10

2005-05-10

Nutter, Nathan M. (Department: 1711)

Stock material or miscellaneous articles

Composite

Of silicon containing

C428S461000, C428S515000

Reexamination Certificate

active

06890661

ABSTRACT:
The present invention relates to an isotactic polypropylene obtained by metallocene catalysis, onto which is grafted a functional monomer.The invention also relates to a composition which may form part of the composition of a coextrusion binder. This composition according to the invention comprises isotactic polypropylene obtained by metallocene catalysis, grafted and then optionally diluted with at least one polyolefin (C1) and/or in at least one polymer of elastomeric nature (D).The invention also relates to a multilayer structure comprising a layer (L) comprising the above binder, and, directly attached thereto, a layer (E):which is polar, nitrogenous or oxygenated, such as a layer of polyamide resin, of ethylene/saponified vinyl acetate copolymer (EVOH) or of polyester; orof a mineral oxide deposited on a polymer such as polyethylene (PE), polyethylene terephthalate (PET) or EVOH; orwhich is metallic or metalloplastic.

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