Modification of polyethylene polydispersity by blending a Ziegler-Natta catalyst with a group of IV-half metallocene or scorpionate complexes
F López-Linares, AD Barrios, H Ortega, A Karam… - Journal of Molecular …, 2002 - Elsevier
Polymerization of ethylene catalyzed by a blend of INPETUS®, a Ziegler-Natta catalyst, with
some half metallocenes such as CpTiCl3 (1), Cp∗ MCl3 (M= Ti, Hf)(2, 3) and IndZrCl3 (4) or …
some half metallocenes such as CpTiCl3 (1), Cp∗ MCl3 (M= Ti, Hf)(2, 3) and IndZrCl3 (4) or …
Multimodal polyethylene
A Buryak, A Kumar, IALI AHMED - US Patent 10,435,493, 2019 - Google Patents
(57) ABSTRACT A multimodal polyethylene copolymer suitable for use in cable insulation
comprising:(III) 45 to 55 wt% of a lower molecular weight compo nent which is an ethylene …
comprising:(III) 45 to 55 wt% of a lower molecular weight compo nent which is an ethylene …
Olefin polymerization catalysts based on hydroxyl-depleted calixarene ligands
S Nagy - US Patent 6,984,599, 2006 - Google Patents
(57) A catalyst System useful for polymerizing olefins is dis closed. The catalyst System
includes an organometallic complex that incorporates a Group 3 to 10 transition metal and a …
includes an organometallic complex that incorporates a Group 3 to 10 transition metal and a …
Ziegler-natta catalyst and preparation thereof
V Sumerin, J Thorman - US Patent 10,118,977, 2018 - Google Patents
This invention relates to a solid MgCl 2 based Natta catalyst component for producing olefin
polymers and preparation of said catalyst component. Further the invention relates to a …
polymers and preparation of said catalyst component. Further the invention relates to a …
Protected catalytic composition and its preparation and use for preparing polymers from ethylenically unsaturated monomers
RC Even, W Lau - US Patent 7,749,934, 2010 - Google Patents
(57) ABSTRACT A method for polymerizing ethylenically unsaturated mono mers, including
non-polar olefinic monomers, polar olefinic monomers, and combinations thereof, using a …
non-polar olefinic monomers, polar olefinic monomers, and combinations thereof, using a …
Ethylene polymerization catalysts
M Chang, T Garoff - US Patent 9,562,119, 2017 - Google Patents
BACKGROUND Polyethylene is one of the most popular plastic in the world. Polyethylene is
used to make grocery bags, shampoo bottles, toys, pipes, containers, drums, and even body …
used to make grocery bags, shampoo bottles, toys, pipes, containers, drums, and even body …
Polyolefin polymer composition
VP Marin, J Van Egmond, A Hintolay - US Patent 11,421,056, 2022 - Google Patents
The present disclosure is generally directed to polyolefin polymers, such as polypropylene
homopolymers, and propylene-ethylene copolymers that have improved flow properties. In …
homopolymers, and propylene-ethylene copolymers that have improved flow properties. In …
Catalyst components for propylene polymerization
VP Marin, A Hintolay - US Patent 11,634,520, 2023 - Google Patents
US11634520B2 - Catalyst components for propylene polymerization - Google Patents
US11634520B2 - Catalyst components for propylene polymerization - Google Patents Catalyst …
US11634520B2 - Catalyst components for propylene polymerization - Google Patents Catalyst …
Aluminum compound, method for producing the same, catalyst for producing olefinic polymers and method for producing olefinic polymers
S Fujikawa, H Nakashima, S Ikeuchi… - US Patent App. 10 …, 2003 - Google Patents
(57) ABSTRACT A catalyst for olefinic polymer production comprises (a) a penta-
coordinated, organic aluminium oxide compound,(b) an alkylating agent and (c) a …
coordinated, organic aluminium oxide compound,(b) an alkylating agent and (c) a …