Exxonmobil Chemical Patents Inc.

Exxonmobil Research and Engineering Company

Keith C Gallow

Karl Gottlieb Strohmaier

Simon Christopher Weston

Ivy Dawn Johnson

Jay L Reimers

Hilda B Vroman

Vetkav Rajagopalan Eswaran

Nadya A Hrycenko

Theodore E Datz

William W Lonergan

Vetkav R Eswaran

Methods and systems for solution polymerization. The method can include forming a first mixture stream consisting essentially of at least one catalyst and a process solvent, and forming a second mixture stream consisting essentially of at least one activator and the process solvent. The first mixture stream and the second mixture stream can be fed separately to at least one reaction zone comprising one or more monomers dissolved in the process solvent where the at least one monomers can be polymerized within the at least one reaction zone in the presence of the catalyst, activator and process solvent to produce a polymer product.

Metallocene catalyst feed system for solution polymerization process

A molecular sieve material, EMM-17, has in its as-calcined form, a total surface area of greater than 550 m/g and/or an external surface area of greater than about 100 m/g as measured by the BET Method, and a specific X-ray diffraction pattern.

Small crystal EMM-17, its method of making and use

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Kingwood, TX, United States of America

Keith C Gallow