C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 1/10 (2006.01) B65D 65/46 (2006.01) C08K 5/15 (2006.01)
Patent
CA 2109618
2109618 9220738 PCTABS00017 The present invention is directed to a thermoplastic cellulose ester polymer composition having improved degradation properties upon exposure to moisture. The composition includes a cellulose ester and a degradation promoter. The degradation promoter, after formation of the polymer composition into an end-product and in the presence of moisture, is water soluble and leachable from the polymer end-product or in the presence of moisture, hydrolyzes to form water soluble by-products which are leachable from the polymer end-product. The degradation promoter also acts as a catalyst to enhance the hydrolysis of the cellulose acetate, resulting in a mixture of cellulose and acetic acid. The cellulose can then depolymerize into saccharides that are more biodegradable. The degradation promoter can also act as a plasticizer for the cellulose ester polymer or can be used in combination with other known plasticizers.
Lipinsky Edward S.
Sinclair Richard G.
Battelle Memorial Institute Pacific Northwest Division
Fetherstonhaugh & Co.
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