1
Charles Cozewith, Sudhin Datta, Weiguo Hu: Propylene ethylene polymers. ExxonMobile Chemical Patents, S D Prodnuk, February 25, 2003: US06525157 (225 worldwide citation)

Ethylene propylene copolymers, substantially free of diene, are described. The copolymers will have a uniform distribution of both tacticity and comonomer between copolymer chains. Further, the copolymers will exhibit a statistically insignificant intramolecular difference of tacticity. The copolyme ...


2
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 ...


3
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 ...


4
Sudhin Datta, Jeffrey Middlesworth: Elastic films including crystalline polymer and crystallizable polymers of propylene. ExxonMobil Chemical Patents, Charles E Runyan, December 31, 2002: US06500563 (115 worldwide citation)

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


5
Sudhin Datta, Avinash Chandrakant Gadkari, Charles Cozewith: Thermoplastic polymer blends of isotactic polypropylene and alpha-olefin/propylene copolymers. October 21, 2003: US06635715 (105 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 ...


6
Anthony G Karandinos, Keith A Nelson, Jean M Tancrede, Bruce A Harrington, David J Lohse, Olivier J F Georjon, Kenneth Lewtas, Sudhin Datta, Charles Cozewith: Polypropylene-based adhesive compositions. ExxonMobil Chemical Patents, Leandro Arechederra, June 8, 2004: US06747114 (100 worldwide citation)

An adhesive blend is described that can include a semi-crystalline copolymer of propylene and at least one comonomer selected from the group consisting of ethylene and at least one C


7
Sudhin Datta, Charles C Cozewith, Bruce A Harrington: Product and method for making polyolefin polymer dispersions. Exxon Chemical Patents, A R Chi, March 27, 2001: US06207756 (85 worldwide citation)

This invention relates to polyolefin polymer dispersions having a semicrystalline plastic (SP) component and an amorphous elastomer (AE) component. The polymer dispersions of this invention are characterized by a continuous phase containing a discontinuous phase (dispersed phase) as seen by FIG.


8
Terry Finerman, Maria D Ellul, Sabet Abdou Sabet, Sudhin Datta, Avi Gadkari: Modification of thermoplastic vulcanizates using random propylene copolymers. Advanced Elastomer Systems, Exxon Chemical Patents, Samuel Laferty, Daniel J Hudak, William A Skinner, September 11, 2001: US06288171 (70 worldwide citation)

Random propylene thermoplastic copolymers can be used to increase the elongation to break and toughness of thermoplastic vulcanizates. Semi-crystalline polypropylene is a preferred thermoplastic phase. The rubber can be olefinic rubbers. Random thermoplastic polypropylene copolymers are different fr ...


9
Charles C Cozewith, Sudhin Datta, Bruce A Harrington, Bernard J Folie, John F Walzer Jr, Donna J Crowther: Method for making polymer blends by using series reactors. Exxon Mobil Chemical Patents, Anthony Chi, Stephen D Prodnuk, November 20, 2001: US06319998 (65 worldwide citation)

This invention relates to a method of making polymer blends using series reactors and a metallocene catalyst. Monomers used by the invention are ethylene, a higher alpha-olefin (propylene most preferred), and optionally, a non-conjugated diene (ethylidene norbornene, i.e., ENB, most preferred). More ...


10
Charles C Cozewith, Sudhin Datta, Weiguo Hu: Blends made from propylene ethylene polymers. ExxonMobil Chemical Patents, Mandi Milbank, Leandro Arechederra, July 26, 2005: US06921794 (51 worldwide citation)

Polymer blend compositions of a first polymer component comprising an ethylene propylene copolymer and a second polymer component comprising an isotactic polypropylene copolymer. The first polymer component has a uniform distribution of both tacticity and comonomer between copolymer chains. Further, ...