Cellulose - solvant dmso formol

C - Chemistry – Metallurgy – 08 – B

Patent

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6/67, 6/74

C08B 1/00 (2006.01) C08B 16/00 (2006.01) C08L 1/02 (2006.01) D01F 2/00 (2006.01)

Patent

CA 1096106

PRECIS DE LA DIVULGATION: L'invention concerne de nouvelles solutions de cellulose conformables. Elles sont constituées de cellulose native dans un mélange de diméthylsulfoxyde et formaldéhyde, la cellulose présente un degré de polymérisation d'au moins 400, la concentra- tion en cellulose est d'au moins 6 %, le rapport formaldéhyde/ cellulose est compris entre 0,2 et 2 et la teneur en eau est inférieure ou égale à 5 000 ppm en poids. Elles peuvent être transformées en fils, films, membranes, éponges, vernis ou peintures.

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