Crystalline polymer of higher α-olefin and process for...

Details Crystalline polymer of higher α-olefin and process for... Crystalline polymer of higher α-olefin and process for...

2007-05-08

2007-05-08

Rabago, Roberto (Department: 1713)

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S348000, C526S348600, C526S160000, C526S161000, C526S172000, C526S134000

Reexamination Certificate

active

10505046

ABSTRACT:
A crystalline higher α-olefin polymer which is obtained from a C10or more α-olefin and satisfies either (1) the melting point (Tm) as measured with a differential scanning calorimeter (DSC) is 20 to 100° C. or (2) in an examination of spin-lattice relaxation time (T1) by solid NMR analysis, a single T1is observed at the temperatures not lower than the melting point; and a process for producing the α-olefin polymer with a specific metallocene catalyst. The crystalline higher α-olefin polymer is excellent in low-temperature characteristics, rigidity, heat resistance, compatibility with lubricating oils, mixability with inorganic fillers, and secondary processability.

REFERENCES:
patent: 4990424 (1991-02-01), Van Dusen et al.
patent: 5187250 (1993-02-01), Asanuma et al.
patent: 5916989 (1999-06-01), Brookhart et al.
patent: 1-95813 (1989-04-01), None
patent: 99/67347 (1999-12-01), None

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