Kao Corporation

Sharp Kabushiki Kaisha Corporation

Tadashi Nishimori

Katsuhiko Rindo

Akira Yoshimatsu

Rikio Tsushima

Hiroshi Takanashi

Kazuo Kubota

Masashi Yoshikawa

Nobuhiro Nishizawa

Takashi Kawashima

Naoki Kannen

Tomoyuki Okada

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.

Detergent composition for automatic dishwashing machines

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.

Liquid crystal display

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.

Fine particles of crosslinked vinyl polymer and process for producing

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.

Liquid crystal display with spacer having elastic modulus in compression

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.sub.5 is --H or --CH.sub.3.

Growing community of inventors

Wakayama, Japan

Tadashi Nishimori