Organic compounds -- part of the class 532-570 series – Organic compounds – Carbohydrates or derivatives
Reexamination Certificate
2005-06-07
2005-06-07
Chang, Ceila (Department: 1625)
Organic compounds -- part of the class 532-570 series
Organic compounds
Carbohydrates or derivatives
Reexamination Certificate
active
06903209
ABSTRACT:
Disclosed is a polyuronic acid having an average degree of polymerization less than 20. The method of the present invention comprises the steps: (a) providing a solution containing 5 wt. % or more of a high molecular weight polyuronic acid predominantly as its lithium salt; (b) adding hydrogen peroxide and a ferrous salt to the solution prepared in step (a) to oxidatively degrade the high molecular weight polyuronic acid; and (c) isolating a polyuronic acid having an average degree of polymerization less than 20 obtained in step (b).
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Chang Ceila
Ladas & Parry
Oh Taylor V
Seiko Epson Corporation
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