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AssigneeFormosa Plastics Corporation, U.S.A.
InventorsKevin Chung, Michael D. Jensen, Yiqun Fang, Casey Zamzow, Charles R. Johnson, II, Mary Lou Cowen, Jenny Chun-Yu Chen
Estimating the term…
Disclosed are support-activators and catalyst compositions comprising the support-activators for polymerizing olefins in which the support-activator includes a clay heteroadduct, also termed a composite, prepared from a colloidal phyllosilicate such as a colloidal smectite clay, which is chemically-modified with a surfactant. In an aspect, the clay composite can comprise the contact product of a colloidal smectite clay and a surfactant in a liquid carrier, but in the absence of any other reactant such as a cationic polymetallate, and their use as support-activators for metallocene precatalysts is also described. The use of surfactants with cationic polymetallates in forming clay-composites is also described.
A support-activator comprising a smectite heteroadduct, the smectite heteroadduct comprising a contact product in a first liquid carrier and in the absence of any other reactant, of:
A catalyst composition for olefin polymerization, the catalyst composition comprising:
A process for polymerizing olefins comprising contacting at least one olefin monomer and a catalyst composition under polymerization conditions to form a polyolefin, wherein the catalyst composition comprises:
A method of making a support-activator comprising a smectite heteroadduct, the method comprising contacting in a first liquid carrier:
Dependencies are inferred from the claim text.