The invention relates to a process for producing a pulverulent composition comprising at least one polymeric dispersant (PD) which comprises structural units having anionic and/or anionogenic groups and structural units having polyether side chains, and at least one polysaccharide (PS). The process here comprises the process steps: a) production of an aqueous dispersion having a viscosity of the dispersion of less than 10 000 mPa.Math.s, comprising the at least one polymeric dispersant (PD) and the at least one polysaccharide (PS) and b) spray drying of the aqueous dispersion produced in process step a). Furthermore, the use of the pulverulent composition according to the invention in inorganic binder compositions, especially as a rheological additive, is disclosed.

A method for producing a porous body includes: incorporating, into an aqueous urethane resin composition containing an aqueous urethane resin having an acid value of 0.01 mg KOH/g or more, a thickening agent having a carboxyl group and having an oxyethylene group content of 210.sup.2 mol/g or less in an amount in the range of from 0.01 to 30 parts by mass, relative to 100 parts by mass of the aqueous urethane resin, to thicken the composition; and then coagulating the thickened composition using a coagulant containing a metal salt. A porous body having vertically long cells can be produced using an aqueous urethane resin composition. The obtained porous body has excellent texture, elastic force, peel strength, and water vapor permeability, as compared to a porous body of a closed-cell type.

Provided herein is a composite material that includes at least one thermoresponsive polymer and at least one organic foam material. Further provided herein is a method for producing the composite material and also to the use of the composite material for cooling and for regulating temperature.

A rubber composition containing a rubber and modified cellulose fibers, wherein one or more substituents selected from substituents represented by the following general formulas (1) and (2): CH.sub.2CH(OH)R.sub.1 (1), CH.sub.2CH(OH)CH.sub.2(OA).sub.nOR.sub.1 (2), wherein each R.sub.1 in the general formulas (1) and (2) is independently a linear or branched alkyl group having 3 or more carbon atoms and 30 or less carbon atoms; n in the general formula (2) is a number of 0 or more and 50 or less; and A is a linear or branched, divalent saturated hydrocarbon group having 1 or more carbon atoms and 6 or less carbon atoms are bonded to cellulose fibers via an ether bond, wherein the modified cellulose fibers have a cellulose I crystal structure. The rubber composition of the present invention can be suitably used for machine tool parts, household electric appliance parts, automobile parts, and the like.

A resin composition including from 30 to 99 wt % of a cellulose-based resin represented by the following formula (1) and from 70 to 1 wt % of a fumaric acid ester polymer containing 30 mol % or more of a fumaric acid diester residue unit represented by the following formula (2); an optical compensation film using the same; and a production method of the optical compensation film. ##STR00001##
(wherein R.sub.1 to R.sub.3 represent a substituent having a carbon number of 1 to 12, and R.sub.4 and R.sub.5 represent an alkyl group having a carbon number of 1 to 12).

Disclosed is a cellulose composition including: (A) a water-soluble cellulose ether, (B) water-insoluble cellulose particles and (C) water. The cellulose composition may serve as a novel biomass material which uses biodegradable cellulose that places little burden on the environment, and exhibits excellent shape retention properties. The cellulose composition may include (A) 100 parts by weight of the water-soluble cellulose ether, (B) 30 to 150 parts by weight of the water-insoluble cellulose particles, and (C) 300 to 1,000 parts by weight of water.