BIODEGRADABLE POLYMER BLEND

WIPO Patent Application WO/2012/120309

A3

A fully degradable and a compostable polyester based blend that is free from non- degradable organic or inorganic additives such as nucleating agents and the like. The thermal properties of the present blend are configured for optimised flow rate during process moulding via a 'flow rate enhancing component' being a relative low molecular weight biodegradable polyester. The blend also provides a resultant moulded article having the appropriate mechanical, physical and chemical properties including greatly improved toughness over existing PLA based blends. This is achieved by incorporating a 'toughening component' within the blend being a relatively high molecular weight component relative to the flow rate enhancing component.

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BAILEY PETER BRADBY SPIROS (GB)
HODZIC ALMA (GB)
HAYES SIMON ANTHONY (GB)

PCT/GB2012/050525

April 25, 2013

March 09, 2012

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CLEANING AND PAPER DISPOSABLES PLC (GB)
BAILEY PETER BRADBY SPIROS (GB)
HODZIC ALMA (GB)
HAYES SIMON ANTHONY (GB)

C08L67/04; B65D65/46; C08L67/02

EP0890614A1	1999-01-13
US20070027255A1	2007-02-01
US6197860B1	2001-03-06
US5883199A	1999-03-16

DATABASE WPI Week 200603, Derwent World Patents Index; AN 2006-023924, XP002692236
DATABASE WPI Week 200916, Derwent World Patents Index; AN 2009-E13756, XP002692237

NEILSON, Martin et al. (Tower North CentralMerrion Way,Leeds, Yorkshire LS2 8PA, GB)

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