1
Terry John Burkhardt, Robert Tan Li, Aspy Keki Mehta, Udo M Stehling, William T Haygood Jr, Francis C Rix, Dawn C Wiser: Propylene impact copolymers. ExxonMobil Chemical Patents, Kevin M Faulkner, C Paige Schmidt, January 29, 2002: US06342566 (60 worldwide citation)

This invention relates to propylene impact copolymer compositions. In particular, these unique and improved compositions can be produced using conventional, commercial-scale processes.


2
George Byron Georgellis, Chia Yung Cheng, William Moa Tseng Chien: Polypropylene copolymer alloys and process for making. Exxon Chemical Patents, Douglas W Miller, C Paige Schmidt, November 30, 1999: US05994482 (59 worldwide citation)

The present invention relates to polypropylene alloys which are especially suited for soft fiber and fabric applications. An embodiment of these alloys comprise an ethylene-propylene random copolymer having an ethylene content of from about 1.0 to 5.0% by weight, in an amount of from about 40 to 90% ...


3
Prasadaro Meka, Kunihiko Imanishi, Gary Frederick Licciardi, Avinash Chandrakant Gadkari: Diene modified polymers. Exxon Chemical Patents, C Paige Schmidt, September 23, 1997: US05670595 (49 worldwide citation)

Diene modified polymers are provided as well as methods for preparing the same. The polymers have from 3-8 carbon atoms, from about 0.00005 to about 5 mole percent diene based on the total weight of the polymer. The polymers are essentially gel-free and exhibit enhanced melt strength and shear thinn ...


4
Moses O Jejelowo: Method for making a catalyst system. Exxon Chemical Patents, Jaimes Sher, C Paige Schmidt, November 21, 1995: US05468702 (44 worldwide citation)

This invention is generally directed toward a catalyst system useful for polymerizing olefins. The method for preparing the catalyst of the invention provides for combining a bulky ligand transition metal catalyst with an activator that has been aged, optionally with a support. The catalyst system i ...


5
Aspy Keki Mehta, Michael Chia Chao Chen: Shrink films from propylene polymers. Exxon Chemical Patents, C Paige Schmidt, April 21, 1998: US05741563 (40 worldwide citation)

Shrink films prepared from metallocene catalyzed propylene homopolymers and copolymers are provided. The films exhibit a unique balance of properties as compared to known shrink films including higher stiffness, tensile strength and moisture barrier, lower extractables, improved shrinkage and increa ...


6
Glenn Allan Stahl, James John McAlpin: Polyolefin fibers and their fabrics. Exxon Chemical Patents, C Paige Schmidt, March 3, 1998: US05723217 (34 worldwide citation)

Novel fibers have been made from reactor grade isotactic poly-alpha-olefin wherein polypropylene is produced by single-site catalysis and has a melt flow rate of greater than zero to about 5,000, MWD in the range of about 1.0 to about 3.5.


7
Glenn Allan Stahl, James John McAlpin: Polyolefin fibers and their fabrics. Exxon Chemical Patents, C Paige Schmidt, January 4, 2000: US06010588 (32 worldwide citation)

Novel fibers have been made of reactor grade isotactic poly-alpha-olefin wherein polypropylene is produced by single-site catalysis and has a melt flow rate of greater than zero to about 5,000, MWD in the range of about 1.0 to about 3.5.


8
Glenn Allan Stahl, James John McAlpin: Polyolefin fibers and their fabrics. Exxon Chemical Patents, C Paige Schmidt, April 7, 1998: US05736465 (32 worldwide citation)

Novel fibers have been made from reactor grade isotactic poly-alpha-olefin wherein polypropylene is produced by single-site catalysis and has a melt flow rate of greater than zero to about 5,000, MWD in the range of about 1.0 to about 3.5.


9
Jo Ann Marie Canich: Higher molecular weight amorphous polypropylene. Exxon Chemical Patents, C Paige Schmidt, March 3, 1998: US05723560 (31 worldwide citation)

An amorphous polypropylene having a high weight average molecular weight prepared by a process in the presence of a catalyst comprising titanium-containing monocyclopentadienyl metallocene and aluminoxane.


10
Terry John Burkhardt, Robert Tan Li, Aspy Keki Mehta, Udo M Stehling, William T Haygood Jr, Francis C Rix, Dawn C Wiser: Propylene impact copolymers. ExxonMobil Chemical Patents, C Paige Schmidt, Kevin M Faulkner, May 7, 2002: US06384142 (29 worldwide citation)

This invention relates to propylene impact copolymer compositions. In particular, these unique and improved compositions can be produced using conventional, commercial-scale processes.