Polymer blends

Details Polymer blends Polymer blends

2011-06-07

2011-06-07

Nutter, Nathan M (Department: 1765)

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C525S240000, C524S515000

Reexamination Certificate

active

07956129

ABSTRACT:
Novel polymer blends comprise (a) 1-99% by weight of a copolymer of ethylene and an alpha olefin having from 3 to 10 carbon atoms, said copolymer having (iv) a density in the range 0.905 to 0.940 g cm−3, (v) a melt elastic modulus G′ (G″=500 Pa) in the range 10 to 150 Pa, and (vi) a melt index in the range 5 to 50, and (b) from 1-99% by weight of a low density polyethylene (LDPE) polymer having a density from 0.914 to 0.928 g cm−3wherein the sum of (a) and (b) is 100%. The copolymers of component (a) are typically prepared by use of metallocene catalysts. The blends exhibit advantageous melt elastic modulus in the range 30 to 200 Pa. The blends are particularly suitable for extrusion coating applications.

REFERENCES:
patent: 4587303 (1986-05-01), Turtle
patent: 5506056 (1996-04-01), Yoshihara
patent: 6110599 (2000-08-01), Edwards et al.
patent: 6417271 (2002-07-01), Nishihara et al.
patent: 6451897 (2002-09-01), Niyogi
patent: 6497965 (2002-12-01), Longmoore et al.
patent: 6723398 (2004-04-01), Chum et al.
patent: 6864332 (2005-03-01), Braganca et al.
patent: 2001/0016627 (2001-08-01), Koshirai et al.
patent: 2003/0215659 (2003-11-01), Farley et al.
patent: 2004/0053022 (2004-03-01), Ohlsson
patent: 2004/0074571 (2004-04-01), Adkins et al.
patent: WO 00/68285 (2000-11-01), None
patent: WO 02/48258 (2002-06-01), None

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