Temperature controlled and pH dependent self gelling biopolymeric aqueous solution

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United States of America Patent

PATENT NO 8920842
APP PUB NO 20100028434A1
SERIAL NO

12576354

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Abstract

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The present invention relates a biopolymeric liquid aqueous composition for producing self-gelling systems and gels, which comprises: an acidic water-based medium, 0.1 to 10% by weight of a pH-gelling acid-soluble biopolymer; and 0.1 to 10% by weight of a water-soluble molecule having a basic character and a pKa between 6.0 and 8.4, or a water-soluble residue or sequence of the molecule having a basic character and a pKa between 6.0 and 8.4. The liquid composition has a final pH ranging from 5.8 and 7.4, and forms a stable solid and homogeneous gel within a temperature range from 10 to 70° C. The present invention also relates to a method for preparing the composition and uses thereof.

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Patent Owner(s)

Patent OwnerAddress
SMITH & NEPHEW ORTHOPAEDICS AGTHEILERSTRASSE 1A ZUG 6300

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chaput, Cyril Montréal, CA 11 334
Chenite, Abdellatif Kirkland, CA 23 330
Selmani, Amine Laval, CA 8 137
Wang, Dong Montréal, CA 600 4166

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