Olefin polymers, method of making, and use thereof

Details Olefin polymers, method of making, and use thereof Olefin polymers, method of making, and use thereof

2005-03-15

2005-03-15

Teskin, Fred (Department: 1713)

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S348200, C428S036900

Reexamination Certificate

active

06867278

ABSTRACT:
The present invention is directed to homo-polymers and copolymers of mono-1-olefins, a method of making such polymers,and uses of such polymers. Polymers of the present invention are formed by contacting at least one mono-1-olefin having from 2 to about 20 carbon atoms per molecule and at least one mono-1-olefin co-monomer having from 2 to about 10 carbon atoms per molecule in a reaction zone under polymerization conditions in the presence of a hydrocarbon diluent, a catalyst system, and a cocatalyst. In another aspect of the present invention, ethylene copolymers are employed to produce PE-100 pipe. Further, these ethylene copolymers may be employed to produce PE-100 pipe having both small diameters and diameters in excess of 42 inches substantially without sagging or other gravitational deformation. Copolymers of ethylene and 1-hexene are disclosed which are used to produce PE-100 pipe.

REFERENCES:
patent: 4596862 (1986-06-01), McDaniel et al.
patent: 5037911 (1991-08-01), McDaniel et al.
patent: 6174981 (2001-01-01), Bergmeister et al.

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