Abstract: Herein is disclosed a pigment-dispersed resin composition comprising (a) a surface modified pigment in respect of which a surface modifying mixture consisting of a titanium oligomer and an organic acid ester is coated uniformly on the surface of the pigment particles and (b) a resin, usable, e.g., as an ingredient of a paint or a printing ink.

Abstract: Herein are disclosed a resin magnet excellent in flow characteristics and magnetic properties comprising a surface modified magnetic powder in respect of which the surface of the magnetic powder particles has been coated uniformly with a surface modifying mixture consisting of a titanium oligomer and an organic acid ester, and a resin; a magnetic toner excellent in printing quality and resolution comprising a fine powder prepared by mixing and pulverizing a resin and such a surface-modified magnetic powder, and a fluidizing agent; a magnetic coating material comprising such a surface-modified magnetic powder, an organic binder, and a solvent; and a magnetic recording material excellent in magnetic and surface properties obtained by coating a substrate resin with a magnetic coating material comprising such a surface-modified magnetic powder, an organic binder, and a solvent.

Abstract: A surface modifying agent for surface treating a filler in water which comprises 100 parts by weight of a zirconate base or/and aluminate base coupling agent(s) whose unhydrolyzable side chains have a solubility parameter (x) of 6.5-12, and 3 to 30 parts by weight of a nonionic surface active agent blended therewith having an HLB value (y) of 2-30 and containing no protonic hydrogen(s) in its molecule, wherein x and y satisfy a relationship of 4x-24.ltoreq.y.ltoreq.4x-18, as well as another surface modifying agent for the same purpose which comprises a mixture of 100 parts by weight of the above one or two coupling agents having a viscosity of 200 cps or more with 30-3000 parts by weight of a water-insoluble solvent, where the total mol fraction value (z) of the solubility parameters of the unhydrolyzable side chains of the coupling agent(s) and the solvent is 6.5-12, and 3 to 1000 parts by weight of the above nonionic surface active agent blended therewith, wherein z and y satisfy a relationship of 4z-24.

Abstract: Stabilized halogen-containing resin compositions having improved thermal stability and weather resistance comprising a halogen-containing resin and as a stabilizer, an organic phosphate ester having the general formula: ##STR1## wherein R.sub.1 to R.sub.4 are the same or different organic radicals, A represents hydrocarbon residue of polyhydric compound having 2 to 6 hydroxyl groups, m and n are each an integer of 1 to 3, and m+n is equal to the total number of hydroxyl groups in polyhydric compound.

Abstract: A retarder for gypsum plaster is provided which consists essentially of .beta.-hydroxy-.beta.-carboxy-isocaproic acid or a water soluble salt thereof. It has powerful retarding effect toward gypsum plaster and gives a solid product having much better mechanical strength than that encountered when an alkali metal salt of citric acid or powdered glue which are the ordinary set retarders are used. A process for retarding the setting of gypsum plaster by the use thereof, is also provided.