1
Sudhin Datta, Charles Cozewith, Periagaram Periagaram, Edmund J Stachowski: Elastic blends comprising crystalline polymer and crystallizable polym. ExxonMobil Chemical Patents, Stephen D Prodnuk, Mandi B Milbank, Paige Schmidt, November 4, 2003: US06642316 (128 worldwide citation)

Improved thermoplastic polymer blend compositions comprising an isotactic polypropylene component and an alpha-olefin and propylene copolymer component, said copolymer comprising crystallizable alpha-olefin sequences. In a preferred embodiment, improved thermoplastic polymer blends are provided comp ...


2
Chia Yung Cheng, Sudhin Datta, Pawan Kumar Agarwal: Elastic fibers and articles made therefrom, including crystalline and crystallizable polymers of propylene. ExxonMobil Chemical Patent, William G Muller, Paige Schmidt, January 29, 2002: US06342565 (124 worldwide citation)

Improved thermoplastic polymer soft elastic fiber blend compositions including a crystalline isotactic polypropylene component and a crystallizable alpha-olefin and propylene copolymer component, the copolymer comprising crystallizable alpha-olefin sequences. In a preferred embodiment, improved ther ...


3
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.


4
Weiqing Weng, Armen Dekmezian, Eric J Markel, Avinash Gadkari, David L Peters: Propylene polymers incorporating macromers. Exxon Chemical Patents, Brent M Peebles, David J Alexander, Paige Schmidt, March 6, 2001: US06197910 (59 worldwide citation)

A polyolefin composition is provided which consists essentially of isotactic polypropylene and, optionally, repeating units of one or more comonomers, wherein the total comonomer repeating unit content of the polyolefin composition is from 0 to 20 mole percent, and further, wherein the weight averag ...


5
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% ...


6
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, Paige Schmidt, October 29, 2002: US06472474 (57 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.


7
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 ...


8
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 ...


9
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 ...


10
Galen C Richeson, Glenn A Stahl, James J McAlpin, Anthony N Speca: Nonwoven fabrics. Exxon Chemical Patents, Paige Schmidt, April 6, 1999: US05891814 (35 worldwide citation)

This invention relates to improved polypropylene nonwoven fabrics. The fabrics are made from isotactic polypropylene which has been produced with a catalyst systems comprising at least two metallocenes. These nonwoven fabrics, particularly when prepared using a spunbonding process, exhibit significa ...