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Polyethylene /Polylactide Block Copolymers for Toner Applications

IP.com Disclosure Number: IPCOM000238618D
Publication Date: 2014-Sep-05
Document File: 2 page(s) / 22K

Publishing Venue

The IP.com Prior Art Database

Related People

William P. Cottom: AUTHOR [+2]

Abstract

Baker Hughes Incorporated (BHI) announces a new line of polyethylene / polylactide block copolymers. These copolymers are produced via controlled polymerization to yield products with varying amounts of polyethylene and polylactide blocks. The process allows independent control of the polyethylene and polylactide blocks, which allows a wide range of properties. The polyethylene portion can have varied amounts of branching, ranging from essentially no branches (totally linear) to highly branched (hyperbranched). The polylactide content comes from biobased lactic acid and provides improved biodegradability for the new product. The polylactide content can range from <5% by weight up to around 95% by weight.

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Polyethylene /Polylactide Block Copolymers for Toner Applications

Baker Hughes Incorporated (BHI) announces a new line of polyethylene / polylactide block copolymers.  These copolymers are produced via controlled polymerization to yield products with varying amounts of polyethylene and polylactide blocks.  The process allows independent control of the polyethylene and polylactide blocks, which allows a wide range of properties.  The polyethylene portion can have varied amounts of branching, ranging from essentially no branches (totally linear) to highly branched (hyperbranched).  The polylactide content comes from biobased lactic acid and provides improved biodegradability for the new product.  The polylactide content can range from <5% by weight up to around 95% by weight.

BHI claims the following application benefits:

·         As pigment dispersants for organic or inorganic pigments.  The new wax can be used to improve the dispersion of pigments into toners.  The combination of polyethylene and polylactide helps wet the pigments and enable better color development and improved loading. The new wax can be used at levels up to 35% by weight on the pigment.

·         As a compatibilizer for wax in toner resin.  The new wax can be used to improve the compatibility of non-functional waxes such as paraffins, microcrystalline, Fischer Tropsch paraffins, and polyethylenes into toner resins.  The polyethylene portion of the block copolymer is compatible with the non-functional waxes, while...