1
Weiqing Weng, Eric J Markel, Armenag H Dekmezian, Palanisamy Arjunan: Branched polypropylene compositions. Exxon Chemical Patents, William G Muller, Douglas W Miller, Charles E Ronyan, May 1, 2001: US06225432 (87 worldwide citation)

Branched polypropylene compositions which have improved melt strength and good processability are provided. The branched polypropylene compositions of the present invention have a polydispersity of less than 4.0 and a melt point greater than 90° C. Further, the weight average branching index g of th ...


2
Palanisamy Arjunan, Roma B Kusznir: Compatibilization of dissimilar elastomer blends using ethylene/acrylate/acrylic acid terpolymers. Exxon Chemical Patents, Catherine L Bell, January 25, 1994: US05281651 (58 worldwide citation)

This invention relates to a compatibilized rubber composition and a process for compatibilizing dissimilar rubber blends comprising blending an ethylene/acrylate/acrylic acid terpolymer with 2 or more different rubbers, selected from the group including, but not limited to, EPR, EPDM, CR, NBR, SBR a ...


3
Palanisamy Arjunan, Simon X Zhang, Charles Cozewith: Supercritical polymerization process and polymers produced therefrom. ExxonMobil Chemical Patents, Catherine L Bell, Michael S Kerns, January 15, 2008: US07319125 (22 worldwide citation)

This invention relates to a process to produce propylene polymers comprising contacting a metallocene catalyst compound and an activator in a reaction medium comprising propylene, from 0 to 30 volume % of one or more solvents and from 0 to 30 mole % of one or more comonomers, under temperature and p ...


4
Pawan Kumar Agarwal, Weiqing Weng, Aspy K Mehta, Armenag H Dekmezian, Main Chang, Rajan K Chudgar, Olivier Jean Georjon, Chon Yie Lin, Michael C Chen, Galen C Richeson, Palanisamy Arjunan: Articles formed from propylene diene copolymers. ExxonMobil Chemical Patents, Catherine Bell, Leandro Arechederra, October 26, 2004: US06809168 (17 worldwide citation)

The co-polymerization reaction of one or more olefin monomers, such as propylene, with &agr;,&ohgr;-diene units and the resulting copolymers are provided. More specifically, the copolymer may have from 90 to 99.999 weight percent of olefins and from 0.001 to 2.000 weight percent of &agr;,&ohgr;-dien ...


5
Palanisamy Arjunan: Diene-modified propylene copolymers. ExxonMobil Chemical Patents, March 4, 2008: US07339018 (16 worldwide citation)

Certain specific embodiments of the invention will now be discussed. For example, a process of preparing a copolymer composition that includes a diene-modified polypropylene copolymer is described, which process includes: contacting a metallocene catalyst compound with a polymerization medium that i ...


6
Kavilipalayam M Natarajan, Palanisamy Arjunan, David Elwood: Impact modified polyester blends with improved polymer compatibility. Enichem S p A, Lerner David Littenberg Krumholz & Mentlik, March 22, 1994: US05296550 (15 worldwide citation)

A moldable polyblend of thermoplastic polyesters, one or more polymers selected from polyamides, polyolefins and mixtures thereof, and ethylene copolymers containing epoxy groups. The ethylene copolymers contribute improved compatibility between the thermoplastic polyesters and the polyamides or pol ...


7
Weiqing Weng, Eric J Markel, Main Chang, Armenag H Dekmezian, Palanisamy Arjunan, Olivier J Georjon: Propylene diene copolymerized polymers. ExxonMobil Chemical Patents, Paige Schmidt, February 28, 2006: US07005491 (14 worldwide citation)

A method of lowering MFR response of a high melt flow rate polymer producing metallocene catalyst is provided. The method includes contacting the metallocene catalyst with a sufficient quantity of α,ω-diene monomer such that when the catalyst composition is contacted with polymerizable reactants und ...


8
Pawan Kumar Agarwal, Weiqing Weng, Aspy K Mehta, Armenag H Dekmezian, Main Chang, Rajan K Chudgar, Christopher R Davey, Chon Yie Lin, Galen C Richeson, Palanisamy Arjunan, Olivier Jean Georjon: Propylene diene copolymers. ExxonMobil Chemical Patents, December 20, 2005: US06977287 (14 worldwide citation)

The co-polymerization reaction of one or more olefin monomers, such as propylene, with α,ω-diene units and the resulting copolymers are provided. More specifically, the copolymer may have from 90 to 99.999 weight percent of olefins and from 0.001 to 2.000 weight percent of α,ω-dienes. The copolymer ...


9
Palanisamy Arjunan: Process for converting polyketones to polyesters. Exxon Chemical Patents, Susan Spiering, April 9, 1996: US05506312 (12 worldwide citation)

A polyketone is contacted with an organic peroxyacid in a reactive, oxidization, slurry process to produce a polyester polymer.


10
Palanisamy Arjunan, Wai Yan Chow, Bruce Allan Harrington, Yu Feng Wang, Henry Yang: LLDPE blends with an ethylene-norbornene copolymer for resins of improved toughness and processibility for film production. Exxon Chemical Patents, William G Muller, Frank E Reid, August 29, 2000: US06111019 (11 worldwide citation)

This invention is for LLDPE blends with an ethylene-norbornene copolymer for resins and improved toughness and processibility for film production. This invention provides LLDPE based resins which are significantly improved with respect to their capability to be fabricated into a film layer, particul ...