Abstract: This invention concerns a (meth)acrylic acid type polymer, wherein the value S representing the quantity of an sulfur element introduced which is defined by the formula, S=(quantity of S contained in polymer)/(total quantity of S)×100, is not less than 35. This (meth)acrylic acid type polymer is a water-soluble polymer of a low molecular weight which has only a small impurity content, entails no precipitation of an impurity during the preservation at a low temperature, and excels in dispersibility, chelating ability, and an anti-gelling property.

Abstract: It is an object of the present invention to provide a polyalkyleneimine alkyleneoxide copolymer, which is suitably used as a builders for a detergent, a detergent, a water treatment agent, a dispersant and the like and which can exert high basic performance in point of the detergency or the like, a production method thereof, and use thereof.

Abstract: An object of the present invention is to provide: a water-soluble polymer which can exercise a high calcium-ion-binding ability and a high clay dispersibility even under circumstances where high-hardness water is used; and a process for producing such a water-soluble polymer with ease and good productivity. As a means of achieving this object, the water-soluble polymer according to the present invention has: (1) a calcium-ion-binding ability of not less than 470 mgCaCO3/g and further a clay dispersibility of not less than 0.90 in a test liquid having a calcium concentration of 50 ppm in terms of calcium carbonate; or (2) a calcium-ion-binding ability of not less than 430 mgCaCO3/g and further a clay dispersibility of not less than 0.70 in a test liquid having a calcium concentration of 100 ppm in terms of calcium carbonate.

Abstract: A detergent composition containing at least 0.1% by weight of at least one polymer selected from the group consisting of 1) a polycarboxylic acid-based polymer containing a polyalkylene glycol chain in the structure thereof, 2) a sulfonic acid group-terminated (meth)acrylic acid-based polymer, and 3) an acrylic acid (salt)-maleic acid (salt)-based copolymer having a clay dispersibility under a condition of 50 ppm of calcium carbonate of 0.3 or more; and at least 0.5% by weight of a longer alkyl chain mid-chain branched surfactant compound. The detergent composition can enhance anti-gelling properties to calcium ions, improve the dispersibility to solid particles at low temperatures or under high-hardness conditions, and improve detergency against stains such as mud and carbon black.

Abstract: This invention concerns a (meth)acrylic acid type polymer, wherein the value S representing the quantity of an sulfur element introduced which is defined by the formula, S=(quantity of S contained in polymer)/(total quantity of S)×100, is not less than 35. This (meth)acrylic acid type polymer is a water-soluble polymer of a low molecular weight which has only a small impurity content, entails no precipitation of an impurity during the preservation at a low temperature, and excels in dispersibility, chelating ability, and an anti-gelling property.

Abstract: A method for producing a polymer mixture by polymerizing a (meth)acrylic acid type monomer in the presence of a compound possessing a polyalkylene glycol structure, wherein the amount of water for initial charging is less that 90 parts by mass based on 100 parts bymass of the compound possessing the polyalkylkyleneglycol structure and the amount of water existing at the time of completion of the addition of the (meth)acrylic acid type monomer is in the range of 1-100,000 parts by mass based on 100 parts by mass of the compound possessing the polyalkylene glycol structure is provided. The produced polymer mixture excels in the preservation stability.

Abstract: This invention concerns a (meth)acrylic acid type polymer, wherein the value S representing the quantity of an sulfur element introduced which is defined by the formula, S=(quantity of S contained in polymer)/(total quantity of S)×100, is not less than 35. This (meth) acrylic acid type polymer is a water-soluble polymer of a low molecular weight which has only a small impurity content, entails no precipitation of an impurity during the preservation at a low temperature, and excels in dispersibility, chelating ability, and an anti-gelling property.

Abstract: The present invention provides a display module having: a display board on which a display element displaying an image is mounted; and a chassis on which the display board is mounted and which is placed on a circuit board. The chassis has a support board and a frame plate. The support board includes: a support section which supports a portion of the display board except for a corner section of the display board; and a depressed section which continuously expands from the support section and is formed such that a surface on a side supporting the display board is lower than the support section. The frame plate is placed on the circuit board while supporting the support board at a predetermined height with respect to the circuit board.

Abstract: This invention concerns a (meth)acrylic acid type polymer, wherein the value S representing the quantity of an sulfur element introduced which is defined by the formula, S=(quantity of S contained in polymer)/(total quantity of S)×100, is not less than 35. This (meth)acrylic acid type polymer is a water-soluble polymer of a low molecular weight which has only a small impurity content, entails no precipitation of an impurity during the preservation at a low temperature, and excels in dispersibility, chelating ability, and an anti-gelling property.

Abstract: This invention concerns a (meth)acrylic acid type polymer, wherein the value S representing the quantity of an sulfur element introduced which is defined by the formula, S=(quantity of S contained in polymer)/(total quantity of S)×100, is not less than 35. This (meth) acrylic acid type polymer is a water-soluble polymer of a low molecular weight which has only a small impurity content, entails no precipitation of an impurity during the preservation at a low temperature, and excels in dispersibility, chelating ability, and an anti-gelling property.

Abstract: The present invention provides a detergent and fabric care additive containing a high molecular weight carboxylic acid polymer excellent in solubility in the use of a fabric treatment product such as a detergent and fabric care additive. A detergent and fabric care additive containing a carboxylic acid polymer powder, wherein the carboxylic acid polymer powder satisfies the following conditions (a) and (b) [(a) at least one of conditions that a 0.2% by weight aqueous solution has a viscosity of 10 mPa·s or higher and that a 1% by weight aqueous solution has pH lower than 6 and a 10% by weight aqueous solution has a viscosity of 300 mPa·s or higher and (b) at least one of conditions that 50% by weight or more of the carboxylic acid polymer powder passes through 20 mesh of a sieve according to JIS (Z8801) and that the average particle diameter is 600 ?m or smaller].

Abstract: A process of producing a polymer by aqueous solution polymerization with good productivity without causing the formation of noxious gases or the formation of impurities due to the noxious gases, or without any danger of foaming and the like is disclosed. The process includes subjecting a monomer to aqueous solution polymerization while controlling the temperature using at least one device of an external circulation device and an internal coil device each having heat exchanging function.

Abstract: An object of the present invention is to provide a polyalkylenimine-derived polymer and its production process and uses, wherein the polyalkylenimine-derived polymer can efficiently disperse such as liquid (particularly, water-soluble) dirt and dyes and can exercise excellent performances in uses for such as detergents and water-treating agents. As a means of achieving this object, a polyalkylenimine-derived polymer according to the present invention is an addition product of a carboxyalkyl group to a polyalkylenimine chain and is in the range of 30,000 to 5,000,000 in weight-average molecular weight.

Abstract: An object of the present invention is to provide a polymer which is suitable as a detergent builder in that it exerts an excellent detergency and it has no adverse effect on the environment, and is suitable as a cement admixture in that it is excellent in cement dispersibility, and workability is better.

Abstract: It is an object of the present invention to provide a detergent builder comprising a copolymer excellent in compatibility with a liquid detergent and capable of exhibiting excellent basic abilities such as prevention of recontamination and detergency ratio, and a detergent composition containing the detergent builder. The above-mentioned detergent builder comprises a copolymer obtained by copolymerization of monomer components containing a polyalkyleneimine unsaturated monomer and other monomers.

Abstract: The present invention provides a cylindrical slab type gas laser for generating an excellent laser beam having substantially Gaussian intensity distribution of the focussed output laser beam. For this end, a pair of cylindrical electrodes 11, 12 of different diameter are disposed vertically and concentrically. And laser medium is filled in the gap between the two cylindrical electrodes 11, 12 to define a cylindrical straight slab 1. Disposed at one end of the cylindrical top of the cylindrical straight slab 1 is a ring-shaped trick mirror M1 and also disposed at the center of the one end of the cylindrical straight slab 1 is an output mirror M2 to pass a part of the light and to reflect a part of the remaining light. On the other hand, disposed at the other end of the cylindrical straight slab 1 is a w-axicon mirror M3. The above construction eliminates the need for spacers between the two cylindrical electrodes 11, 12 which are required in a conventional gas laser.

Abstract: It is an object of the present invention to provide a polyalkyleneimine alkyleneoxide copolymer, which is suitably used as a builders for a detergent, a detergent, a water treatment agent, a dispersant and the like and which can exert high basic performance in point of the detergency or the like, a production method thereof, and use thereof.

Abstract: The present invention relates to a portable apparatus such as a mobile phone or a notebook type personal computer, an object of which is to improve the durability of a flexible flat cable without lowering the degree of freedom of a curled portion thereof and prevent the same from being locally worn. This portable apparatus includes a first housing having a printed board module, a second housing coupled at one end thereof with the first housing via a hinge mechanism and having a printed board module, a flexible flat cable connected at one end thereof with the printed board module in the first housing and at the other end thereof with the printed board module in the second housing, while being at least once curled at a position corresponding to the hinge mechanism, and an insert member to be inserted into the curled portion of the flexible flat cable. This insert member is not fixed to either the first housing or the second housing but the movement thereof is restricted.

Abstract: An object of the present invention is to provide a three-monomer-based water-soluble copolymer, obtained from an unsaturated monocarboxylic monomer, an unsaturated dicarboxylic monomer, and an unsaturated alcoholic monomer, wherein the water-soluble copolymer can sufficiently exercise excellent performances particularly when used for detergent builders, detergent compositions, water-treating agents, and dispersants. As a means of achieving this object, the water-soluble copolymer according to the present invention has: an unsaturated alcoholic monomer-derived structural unit content of 0.1 to 40 weight % (but not including 40 weight %); and a product of not less than 200 of the calcium-ion-binding ability and the clay dispersibility (which is measured in an aqueous solution having a calcium ion content of 50 ppm in terms of calcium carbonate) under conditions of solid component content=40 weight % and pH=7.5.

Abstract: A liquid detergent builder which is highly compatible with a surfactant and gives transparent liquid detergents having extremely excellent detergency, a liquid detergent containing the builder, and a liquid detergent containing an acrylic acid-based polymer (salt) having excellent clay dispersibility and good compatibility with a surfactant. The liquid detergent builder comprises an acrylic acid/maleic acid-based copolymer (salt), wherein the acrylic acid/maleic acid-based copolymer (salt) contains maleic acid (salt) in an amount of 5-90 mol % per mole of the sum of acrylic acid (salt) and maleic acid (salt), and a product (MA×Mw) of a weight average molecular weight (Mw) of the copolymer (salt) and a proportion (MA (mol %)) of the maleic acid (salt) in the copolymer (salt) is 450,000 or less.