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Grace Onkee Tsien

Mobil

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Publication

Featured researches published by Grace Onkee Tsien.

Journal of Molecular Catalysis A-chemical | 1997

Catalyst for bimodal molecular weight distribution ethylene polymers and copolymers

Robert Ivan Mink; Thomas Edward Nowlin; Sandra Denise Schregenberger; Pradeep P. Shirodkar; Grace Onkee Tsien

The interaction of silica, previously calcined at 600° C., with dibutylmagnesium (DBM), 1-butanol and titanium tetrachloride and a solution of methylalumoxane (MAO) and (BuCp)2 ZrCl2 provides a catalyst that, in the absence of a trialkylaluminum (AlR3) cocatalyst, produces polyethylene with a bimodal MWD.

Archive | 1994

Process for controlling the MWD of a broad/bimodal resin produced in a single reactor

Robert Ivan Mink; Thomas Edward Nowlin; Pradeep P. Shirodkar; Sandra Denise Schregenberger; Grace Onkee Tsien

Archive | 1995

Bimodal molecular weight distribution polyolefins

Thomas Edward Nowlin; Sandra Denise Schregenberger; Pradeep P. Shirodkar; Grace Onkee Tsien

Archive | 1995

Single reactor bimodal HMW-HDPE film resin with improved bubble stability

Robert Ivan Mink; Thomas Edward Nowlin; Sandra Denise Schregenberger; Pradeep P. Shirodkar; Grace Onkee Tsien

Archive | 1994

Catalyst composition for use in the polymerization and copolymerization of ethylene

Frederick Yip-Kwai Lo; Thomas Edward Nowlin; Sandra Denise Schregenberger; Pradeep P. Shirodkar; Grace Onkee Tsien

Archive | 1991

Control of oligomer level in low pressure polyethylene reactor systems

Quentin S. Cooke; Glyarpuram N. Prasad; John J. Schlueter; Grace Onkee Tsien

Archive | 2002

Process for controlling the MWD of a broad or bimodal resin in a single reactor

Thomas Edward Nowlin; Sandra Denise Schregenberger; Pradeep P. Shirodkar; Grace Onkee Tsien

Archive | 2002

One pot preparation of bimetallic catalysts for ethylene 1-olefin copolymerization

Robert Ivan Mink; Yury V. Kissin; Thomas Edward Nowlin; Pradeep P. Shirodkar; Grace Onkee Tsien; Sandra Denise Schregenberger

Archive | 1989

Multiple chromium compound-containing catalyst composition and olefin polymerization therewith

Bohumil Vaclav Kral; Grace Onkee Tsien; Chisung Wu

Archive | 2002

Bimetallic catalyst for ethylene polymerization reactions with uniform component distribution

Yury V. Kissin; Robert Ivan Mink; Thomas Edward Nowlin; Pradeep P. Shirodkar; Sandra Denise Schregenberger; Grace Onkee Tsien

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Collaboration

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Sandra Denise Schregenberger

Mobil

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Thomas Edward Nowlin

Mobil

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Pradeep P. Shirodkar

ExxonMobil

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Robert Ivan Mink

Mobil

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Pradeep P. Shirodkar

ExxonMobil

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Yury V. Kissin

Rutgers University

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Frederick Yip-Kwai Lo

Mobil

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Bohumil Vaclav Kral

Mobil

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Bruce Steven Yarmoska

Mobil

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Chisung Wu

Mobil

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