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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 4. Отображено 4.
06-03-2013 дата публикации

Novel copolymer

Номер: CN102958964A
Принадлежит:

Provided is a novel copolymer that is useful as a pigment dispersant. The novel copolymer comprises block chains (A) containing at least one kind of repeating unit selected from a group consisting of repeating units with tertiary amino groups and repeating units with quaternary ammonium bases, and block chains (B) containing repeating units with acidic groups and repeating units represented by Formula (I) (in the formula, R1 represents a hydrogen atom or C1 to C3 alkyl group and R2 represents an aliphatic hydrocarbon group or alicyclic hydrocarbon group). The proportion copolymerized of the repeating units represented by Formula (I) is 90 mass% or more in the block chains (B).

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06-03-2013 дата публикации

Block copolymer production method and copolymer precursor

Номер: CN102958965A
Принадлежит:

Provided is a production method for a novel copolymer that is useful as a pigment dispersant, etc. The disclosed production method uses a copolymer precursor that contains a block chain (A), which includes at least one type of repeat unit selected from a group comprised of repeat units that contain tertiary amino groups and repeat units that contain quaternary ammonium bases, and a block chain (B), which includes repeat units represented by formula (II) and repeat units that contain protected acid groups represented by formula (I). This product is then heated to produce a block copolymer that contains the block chain (A) and a block chain (B1), which includes repeat units represented by formula (II) and repeat units that contain an acid group represented by formula (III).

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04-04-2013 дата публикации

NOVEL COPOLYMER

Номер: US20130085233A1
Принадлежит: NIPPON SODA CO., LTD.

An object of the present invention is to provide a novel copolymer useful as a dispersing agent for a pigment or the like. The novel copolymer contains: a block chain (A) comprising at least one repeating unit selected from the group consisting of a repeating unit having a tertiary amino group and a repeating unit having a quaternary ammonium salt group; and a block chain (B) comprising a repeating unit having an acidic group and a repeating unit represented by the following formula (I) (wherein Rrepresents a hydrogen atom or a C1-C3 alkyl group; and Rrepresents an aliphatic hydrocarbon group or an alicyclic hydrocarbon group), wherein the repeating unit represented by formula (I) has a copolymerization ratio of 90 mass % or more in the block chain (B). The present invention relates to a novel copolymer useful as a dispersing agent. The present application claims the benefit of priority from Japanese Patent Application No. 2010-148859, filed on Jun. 30, 2010, the contents of which are incorporated herein by reference.Copolymer-type pigment dispersing agents have been developed in a variety of fields.Pigment dispersing agents that improve, for example, the dispersibility, fluidity, storage stability, post-drying redissolution properties and substrate adhesion of pigments for ink, particularly, carbon black, have been developed. Patent Document 1 discloses a pigment composition comprising a pigment, an organic dye derivative containing an acidic functional group, an alkali-soluble resin and an organic solvent, wherein the alkali-soluble resin having an amino group and/or a quaternary ammonium group thereof has a basic equivalent of 3000 to 20000 g/eq and an acid number of 30 to 200 mgKOH/g. Specifically, the document describes a random copolymer of n-butyl methacrylate, methyl methacrylate, methacrylic acid and dimethylaminoethyl methacrylate, or the like as the alkali-soluble resin.Since the random copolymer of n-butyl methacrylate, methyl methacrylate, methacrylic ...

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17-05-2012 дата публикации

High-molecular-weight copolymer

Номер: US20120123076A1
Принадлежит: Nippon Soda Co Ltd

It is an object of the present invention to provide (1) a copolymer for a cured product that is satisfactory in properties, such as adhesion properties, as a chip stacking adhesive or the like. The present invention is a copolymer comprising repeating units represented by formula (I), formula (II), and formula (III), (wherein R 1 , R 2 , and R 3 each independently represent a hydrogen atom or a methyl group, R 4 represents an alkyl group or a cycloalkyl group, R 5 represents a hydrogen atom or a C 1 to C 6 alkyl group, m, n, and k represent a molar ratio of the respective repeating units, m represents a positive number of 0 or more and less than 1, n and k each independently represent a positive number, and satisfy a relation of m+n+k=1), and having a weight-average molecular weight in the range of 50,000 to 200,000.

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