Abstract: The present invention relates to a detergent composition for automatic dishwashing machines, containing (A) particles containing 0.05 to 10% by mass of (a) a polymer compound having a monomer unit with a cationic group and another monomer unit with an anionic group at a molar ratio [the total number of moles of cationic groups]/[the total number of moles of anionic groups] of 30/70 to 90/10, wherein the content of the polymer compound (a) in the detergent composition is 0.05 to 1.5% by mass.

Abstract: The present invention relates to a detergent composition for automatic dishwashing machines, containing (A) particles containing 0.05 to 10% by mass of (a) a polymer compound having a monomer unit with a cationic group and another monomer unit with an anionic group at a molar ratio [the total number of moles of cationic groups]/[the total number of moles of anionic groups] of 30/70 to 90/10, wherein the content of the polymer compound (a) in the detergent composition is 0.05 to 1.5% by mass.

Abstract: A liquid crystal display which can provide a homogeneous display by preventing an abnormal orientation of a liquid crystal around the spacers or between the spacers during energization, and which comprises spacer particles each having, at least on the surface thereof, a nonionic hydrophilic unit represented by the following formula (1): ##STR1## wherein R represents a C.sub.1 -C.sub.18 alkyl group, a C.sub.2 -C.sub.18 alkenyl group, a C.sub.6 -C.sub.18 aryl group, a C.sub.7 -C.sub.18 alkylaryl group, a C.sub.1 -C.sub.18 acyl group, a C.sub.2 -C.sub.18 alkylcarbamoyl group, a C.sub.2 -C.sub.18 acylcarbamoyl group or a C.sub.7 -C.sub.18 arylcarbamoyl group; R.sub.1 represents a linear or branched alkylene group having 2 to 4 carbon atoms wherein a hydroxyl group may be substituted for a hydrogen atom on the alkylene group; and m is a positive number of 1 to 100 on the average, with the proviso that the plural R.sub.1 's may be the same or different from each other.

Abstract: Fine particles of a crosslinked vinyl polymer having a very high compressive modulus of elasticity, i.e., above 550 kg/mm.sup.2 but not higher than 800 kg/mm.sup.2, and being able to be effectively employed as a material capable of maintaining a minute gap constant, and a process for producing the same which comprises polymerizing 100 parts by weight of a vinyl monomer mixture consisting essentially of 20 to 90 parts by weight of m-divinylbenzene, 10 to 60 parts by weight of a vinyl monomer having a nitrile group and 0 to 50 by weight of a vinyl monomer other than m-divinylbenzene and vinyl monomers having a nitrile group in the presence of 3 to 10 parts by weight of a radical polymerization initiator belonging to the organic peroxides, in an aqueous medium.

Abstract: A liquid crystal display having a structure such that two sheets of substrates each provided with a transparent electrode and an orientation film are disposed opposite to each other through a spacer particle, which has an elastic modulus in compression of 370 to 550 kg/mm.sup.2 at the 10% displacement of the particle diameter, and a liquid crystal layer is also provided. As a result of this structure for the liquid crystal display, a uniform display quality can be realized through a reduction in the cell gap deviation caused when use is made of a thin sheet substrate.

Abstract: A magnetic recording medium which comprises a non-magnetic support and a magnetic layer thereon comprising a binder and powder of a ferromagnetic substance dispersed in the binder, the binder comprising a crosslinked product of a polyurethane having an average molecular weight of 900 to 50,000 and comprising at least one unit of the formula (I): ##STR1## in which R.sub.1, R.sub.2 and R.sub.4 each are an alkylene, R.sub.3 is a hydrocarbon group derived from a di-isocyanate compound and R.sub.5 is hydrogen or methyl, in one molecular thereof and having --OH, --NCO or --OOC--CR.sub.5 .dbd.CH.sub.2 at both terminals of the main chain thereof, provided that the terminals of the main chain are not --NCO when the molecular weight of the polyurethane ranges from 900 to 10,000. The polyurehtane resin can be prepared by using as a starting material a polymerizable dihydorxyl compound of the general formula (II): ##STR2## in which R.sub.1 R.sub.2 and R.sub.4 each are an alkylene, R.sub.3 is a hydrocarbon group and R.