US Patent 7368503 Compatibilized blends of biodegradable polymers with improved rheology

Patent 7368503 was granted and assigned to Eastman Chemical Company on May, 2008 by the United States Patent and Trademark Office.

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Patent Citations Received

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US Patent 11993705 High PLA content plastic material comprising a citrate ester

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US Patent 11850323 Implantable polymer for bone and vascular lesions

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Patent Inventor Names

Wesley Raymond Hale0

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Patent abstract

This invention relates to a blend of biodegradable polymers comprising:(A) about 5% to about 95% by weight of at least one flexible biodegradable polymer (A) having a glass transition less than about 0° C.,(B) about 5% to about 95% by weight of at least one rigid biodegradable polymer (B) having a glass transition greater than about 10° C., and(C) about 0.25 to about 10 weight % of at least one compatibilizer (C), said percentages being based on the total weight of the polymer blend;where the polymer blend has a higher zero shear melt viscosity than polymers (A) and (B) separately.

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Official Website

https://pdfpiw.uspto.gov/.piw?Docid=073685030

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