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Zwitterionic Catalyst for Olefin Polymerization

Technology Benefits

High activity levelHigh molecular weight polypropyleneStable active species

Technology Application

Polyethylene productionOlefin Polymerization Olefin Co-Polymerization Polymer chemistry This technology is available for licensing.

Detailed Technology Description

Researchers at the University of California, Santa Barbara have developed a zwitterionic catalyst applicable to olefin polymerization.  One novel feature of this catalyst is that the active species is stabilized by a chelated olefin adduct. The catalyst also provides methods of polymerizing olefin monomers, particularly polypropylene and high molecular weight polyethylene. Overall, this catalyst presents high activities, is stable, and resulting polyethylene and polypropylene products are high in molecular weight.          Please see U.S. patent #8,044,225 for a detailed description of the figures.

Application No.

8044225

Others

Background

Olefin fibers (polypropylene, polyethylene) are products of the polymerization of propylene and ethylene gases. For the olefin fibers to be of use, polymerization must occur with a special catalyst in controlled conditions. Since the discovery of new transition metal-based catalysts for polymerization is still in its early stages, there is a need for catalysts in this field.

Additional Technologies by these Inventors

• Water-Soluble ETL Polymers for LEDs
• Zwitterionic Electron Injection Layers for Highly Efficient Polymer LEDs
• Binaphthol-Based Chromophores for Fabrication of Blue LEDs
• Quasi-living metal catalyst for ethylene (homo/co)polymerization
• Method for Preparing Tapered Block Copolymers
• High Mobility Organic Semiconductors

Tech ID/UC Case

21389/2006-268-0

Related Cases

2006-268-0

*Abstract

A zwitterionic catalyst applicable to olefin polymerization.  

*IP Issue Date

Oct 25, 2011

*Principal Investigator

Name: Guillermo Bazan

Department:

Name: Yaofeng Chen

Department:

Country/Region

USA