Francis M Mirabella

US Patent:

6713585, Mar 30, 2004

Filed:

Jul 31, 2000

Appl. No.:

09/629280

Inventors:

Harilaos Mavridis - Cincinnati OH
Mark K. Reinking - Mason OH
Ramesh N. Shroff - Cincinnati OH
Joel A. Mutchler - Morris IL
Charles S. Holland - Coal City IL
Keta M. Lindstrom - Channahon IL
Kiran M. Gupte - Naperville IL
Michael H. Treptau - Channahon IL
Francis M. Mirabella - Mason OH

Assignee:

Equistar Chemicals, LP - Houston TX

International Classification:

C08F11002

US Classification:

526352, 526128, 526348, 5261231, 5261243, 526143, 502116, 502115, 502125, 502103

Abstract:

The present invention provides an ethylene copolymer resin that has unique melt elastic properties not observed in ethylene copolymers heretofore known. Specifically, the ethylene copolymer resin of the present invention when in pelletized form has a reduction in melt elasticity (ER) of 10% or more to a final value of 1. 0 or less upon rheometric low shear modification or solution dissolution. Moreover, the resin of the present invention when in reactor-made form exhibits at least a partially reversible increase of 10% or more in ER when pelletizing the same. An ethylene polymerization catalyst, a process of preparing the ethylene copolymer resin and a high-impact film are also provided herein.

US Patent:

61719935, Jan 9, 2001

Filed:

Dec 4, 1998

Appl. No.:

9/205481

Inventors:

Harilaos Mavridis - Cincinnati OH
Mark K. Reinking - Mason OH
Ramesh N. Shroff - Cincinnati OH
Joel A. Mutchler - Morris IL
Charles S. Holland - Coal City IL
Keta M. Lindstrom - Channahon IL
Kiran M. Gupte - Naperville IL
Michael H. Treptau - Channahon IL
Francis M. Mirabella - Mason OH

Assignee:

Equistar Chemicals, LP - Houston TX

International Classification:

B01J 2100
B01J 2106
B01J 2108

US Classification:

502103

Abstract:

The present invention provides an ethylene copolymer resin that has unique melt elastic properties not observed in ethylene copolymers heretofore known. Specifically, the ethylene copolymer resin of the present invention when in pelletized form has a reduction in melt elasticity (ER) of 10% or more to a final value of 1. 0 or less upon rheometric low shear modification or solution dissolution. Moreover, the resin of the present invention when in reactor-made form exhibits at least a partially reversible increase of 10% or more in ER when pelletizing the same. An ethylene polymerization catalyst, a process of preparing the ethylene copolymer resin and a high-impact film are also provided herein.

US Patent:

54261538, Jun 20, 1995

Filed:

Apr 6, 1994

Appl. No.:

8/223617

Inventors:

Francis M. Mirabella - Morris IL
Stephen Imfeld - Mason OH
Michael L. Opacich - Loveland OH
Edward M. Kajiwara - Park Ridge IL

Assignee:

Quantum Chemical Corporation - Cincinnati OH

International Classification:

C08L 2308
C08L 2320
C08J 516

US Classification:

525222

Abstract:

A polymeric composition including a first copolymer of ethylene and a higher. alpha. -olefin having 3 to 12 carbon atoms, said first copolymer having a density of between 0. 880 g/cc. and about 0. 949 g/cc. and a melt index of between about 0. 01 and about 100, present in the polymeric composition in a concentration of between about 60% and about 95% by weight; and a second copolymer of ethylene-vinyl acetate having a vinyl acetate content of at least about 28% by weight, based on the total weight of the ethylene-vinyl acetate copolymer, said second copolymer present in a concentration of between about 5% and about 40% by weight, said percentages by weight based on the total weight of the polymeric composition. This polymeric composition is particularly useful when fabricated into a film, which has excellent impact strength.