Abstract:
A shaped article, especially a tube-shaped article, including a chemically modified cellulose hydrate and water which comprises:(a) a chemically modified cellulose hydrate which comprises a reaction product obtainable by reacting a cellulose derivative selected from the group consisting of a cellulose hydrate, a chemical reaction product of a cellulose hydrate with an alkylamido-bis-dimethylene-triazinone-tetramethylol, a chemical reaction product of a cellulose hydrate with an alkylamino-bis-dimethylene-triazinone-tetramethylol and mixtures thereof, with a synthetic polymer containing recurring oxyalkylene units and at least one terminal group having the formula --CH.sub.2 --O--CO--NH--CH.sub.2 -OH and(b) water,Is disclosed. Such articles can be prepared by treating a shaped article wherein the cellulose derivative is in the gel state with a solution of the synthetic polymer prior to drying the article under heating. Tube-shaped articles are particularly suited as sausage casings.
Abstract:
A regenerated cellulose film having incorporated therein titanium dioxide and carbon black which together cooperate to reduce the transmission of visible light through such film.
Abstract:
PROBLEM TO BE SOLVED: To provide a regenerated cellulose-encapsulated active substance and a method for encapsulating an active substance in a regenerated cellulose matrix. SOLUTION: The distribution of the active substance is preferably substantially homogeneous within the matrix of regenerated cellulose. The regenerated cellulose (i) has about the same molecular weight as the original cellulose from which it is prepared (ii) is substantially free of added substituent groups relative to the starting cellulose and is also substantially free of entrapped ionic liquid degradation products. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a method for dissolution and processing of cellulose using an ionic liquid. SOLUTION: Cellulose is dissolved in an ionic liquid without derivatization, and is regenerated in a range of structural forms without requiring the use of harmful or volatile organic solvents. Cellulose solubility and the solution properties can be controlled by the selection of the ionic liquid constituents, with small cations and halide or pseudohalide anions favoring solution. The ionic liquid is molten at a temperature of -44°C to 120°C. The method comprises irradiating the admixture with microwave radiation, to assist in dissolution. COPYRIGHT: (C)2009,JPO&INPIT