Abstract: Improved copolymers of unsaturated copolymerizable carboxylic acid monomers and one or more alkyl acrylate esters containing 10 to 30 carbon atoms which serve as efficient thickeners of aqueous solutions, even in the presence of substantial amounts of inorganic salts such as sodium chloride are prepared by conducting the polymerization of the comonomers in a chlorofluoroethane.

Abstract: Polyester masses which are curable with low shrinkage containing non-crystallising unsaturated polyesters having a definite styrene compatibility, copolymerisable vinyl monomers and cellulose acetobutyrate and/or cellulose acetopropionate.

Abstract: A cold water resistant adhesive composition is disclosed which exhibits an optimum balance of cold water resistance and removability when employed for labeling of bottles which will be used under conditions of extreme humidity. The adhesive comprises a mixture of starch, styrene-maleic anhydride resin, peptizer, water and sufficient alkali to obtain a pH of 8.0 to 11.0 with at least 20% of the alkali present in the form of a "fixed alkali".

Abstract: This invention relates to a process for the preparation of a cellulose hydrate moulding which comprises (a) treating a cellulose hydrate moulding while in the gel state, for a period within the range of from 10 seconds to 20 minutes, with an aqueous liquid having dissolved therein at least one plasticizer, a chemical cross-linking agent comprising at least one cyclic urea compound having at least 2 N-methylol groups, and at least one cross-linking catalyst, (b) drying the moulding to a residual water content of from 8 to 12% by weight, and (c) heating the moulding at a temperature within the range of from 100.degree. to 150.degree.C for a period of from 30 seconds to 20 minutes. The invention also relates to a cellulose hydrate moulding prepared by the novel process.

Abstract: Detergent-compatible antistatic compositions are described containing a combination of cationic antistatic agents and certain organic adjuncts as discrete particles. Preferred compositions also include certain smectite clay materials to permit the simultaneous attainment of fabric softening, static-reduction and cleansing effects of fabrics washed therein.

Abstract: Fabric-softening compositions useful for softening and preventing static electricity in textile fabrics comprising a film-forming polymer, a softening agent and a waxy surfactant.

Abstract: Starch-containing polymer compositions are prepared which absorb amounts of water equaling up to more than 1000 times their own weight. The compositions find many applications including their incorporation into products such as disposable diapers, surgical pads and sheets, and paper towels.

Abstract: A coating composition for application to surfaces previously coated with lead paint or other poisonous substances comprising a paint containing a bitter tasting component such as denatonium benzoate. This coating composition has a repulsive taste and an appearance similar to ordinary paints so that it will impart an unpleasant taste experience to a child who mouths surfaces or chips coated with it and will condition the child to avoid mouthing surfaces or chips of similar appearance.

Abstract: Coating compositions comprising a blend of nitrocellulose and a copolymer of 6 to 32 percent by weight ethylene, 36 to 65 percent by weight vinyl chloride and 23 to 50 percent by weight vinyl acetate in a solvent system, the ratio of nitrocellulose to copolymer being 80:20 to 20:80. Modifying resins, e.g., sucrose benzoate, maleic acid resin, etc.; and plasticizers, e.g., tris 2,3-dibromopropyl phosphate, di(2-ethylhexyl) phthalate, etc., can be present in the compositions. The coatings possess excellent adhesion to various substrates as well as excellent hardness, toughness, low temperature flexibility and low flammability.

Abstract: Incorporation of wood protectants into materials produced by bonding wood particles and containing water repellents by blending the wood protectants with the water repellents.

Abstract: An improvement in the composition of particulate, water-insoluble alkali metal carboxylate salts of starch-acrylonitrile graft copolymers of the type which are produced by saponifying starch-acrylonitrile graft copolymers with an alkali metal base in an aqueous alcoholic medium and which particulate copolymer in its unimproved form is capable of absorbing in excess of 50 parts of aqueous fluids per part of copolymer when saturated. The improvement comprises the intermixture with the particulate copolymer of fumed silica or fumed alumina particles in an amount sufficient to increase markedly the rate at which the mixture absorbs physiological fluid as compared to the rate of absorption for such fluids exhibited by the copolymer before the fumed material is added. The mixture also minimizes the undesirable dusting tendency which is a characteristic of the particulate copolymer in the absence of the fumed silica or alumina.

Abstract: To manufacture porous solids, possessing an internal surface area of more than 10 m.sup.2 /g of crosslinked urea-formaldehyde polycondensation products, an aqueous solution of urea and formaldehyde or of a precondensate of urea and formaldehyde is adjusted to a pH value of 0 to 4 by adding a Bronsted acid having a dissociation constant of not less than 1.times.10.sup..sup.-6, for example sulphamic acid or a water-soluble ammonium hydrogen sulphate, so that an insoluble and infusible precipitate consisting of polymeric condensation product is formed, in the course of which the molar ratio of formaldehyde: urea should be at least 0.5 and at most 1.2 not later than at the time of precipitation. The resulting precipitate is separated off, dried and ground. The powder is suitable for use as an absorbent, for example for effluent purification, or as a white pigment.

Abstract: Polyester of trimellitic acid compound having an average molecular weight under about 4,000 and an acid number of at least 35 and starch paper sizing composition containing said polyester.