Shin-Etsu Chemical Patente

[Object] One of the purposes of the present invention is to provide a silicone macromer having a (meth)acrylic group in a high percentage at double-terminals and having a quaternary ammonium cation site in a molecular chain. [Solution] The present invention provides a double-terminal (meth)acrylic-modified silicone macromer having a tertiary amino group in a molecular chain represented by the following general formula (1): <img class="EMIRef" id="1aa99180-cf61-4fb1-a7fa-1c364ab99eba-ia01" /> The present invention further provides a double-terminal (meth)acrylic-modified silicone macromer having a quaternary ammonium cation site in a molecular chain represented by the following general formula (4): <img class="EMIRef" id="1aa99180-cf61-4fb1-a7fa-1c364ab99eba-ia02" /> In general formulas (1) and (4), R is, independently of each other, a group selected from an alkyl group having 1 to 10 carbon atoms, an aryl group having 6 to 10 carbon atoms, and an aralkyl group having 7 to 10 carbon atoms; R<1> is, independently of each other, a group selected from an alkyl group having 1 to 10 carbon atoms, an aryl group having 6 to 10 carbon atoms, and an aralkyl group having 7 to 10 carbon atoms; R<2> is, independently of each other, a group selected from an alkyl group having 1 to 10 carbon atoms, a 2-hydroxyethyl group, an aryl group having 6 to 10 carbon atoms, and an aralkyl group having 7 to 10 carbon atoms; X is, independently of each other, a hydrogen atom or a methyl group; Q is a divalent organic group; "a" is, independently of each other, an integer of 1 to 400; "b" is an integer of 1 to 50; "n1" is, independently of each other, an integer of 2 to 10; and Y is a chlorine atom, a bromine atom, or an iodine atom.

[Object] One of the purposes of the present invention is to provide an organopolysiloxane that is an intermediate compound for providing a silicone macromer having a quaternary ammonium cation site in a molecular chain in which a (meth)acrylic group is introduced in a high percentage at both terminals.[Solution] The present invention provides an organopolysiloxane having a tertiary amino group in a molecular chain represented by the following general formula (1):wherein, in general formula (1) R is, independently of each other, a group selected from an alkyl group having 1 to 10 carbon atoms, an aryl group having 6 to 10 carbon atoms, and an aralkyl group having 7 to 10 carbon atoms; R¹ is, independently of each other, a group selected from an alkyl group having 1 to 10 carbon atoms, an aryl group having 6 to 10 carbon atoms, and an aralkyl group having 7 to 10 carbon atoms; Q¹ and Q² are, independently of each other, a group represented by the following formula (2) or the following formula (3); "a" is an integer of 1 to 400; and "b" is an integer of 1 to 50; wherein, in formula (2), "n1" is an integer of 2 to 10, and "n2" is an integer of 0 to 10; wherein, in formula (3), R¹ is a group selected from an alkyl group having 1 to 10 carbon atoms, an aryl group having 6 to 10 carbon atoms, and an aralkyl group having 7 to 10 carbon atoms.

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In a reflective mask blank including a substrate, a multilayer reflection film, a protection film, an absorber film and a hard mask film, the protection film is composed of a material containing ruthenium (Ru), the absorber film consists of a first layer and a second layer, or a first layer, a second layer and a third layer, the first layer has a composition containing tantalum (Ta) and being free of nitrogen (N), the second layer has a composition containing tantalum (Ta) and nitrogen (N), the third layer has a composition containing tantalum (Ta), nitrogen (N) and oxygen (O), and the hard mask film is composed of a material containing chromium (Cr).

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Provided is a method for producing a three-dimensional (3D) molded article capable of being cured without consuming energy specifically intended for curing such as heating or light irradiation. The method for producing a three-dimensional (3D) molded article comprises the steps of: i) applying a first room temperature-curable organopolysiloxane composition onto a base material using a 3D printing device to form a first layer, wherein the first room temperature-curable organopolysiloxane composition exhibits a thixotropy index of 5 or higher and lower than 10; ii) allowing the first layer under non-heated conditions to form a partially cured first layer; iii) applying a second and optionally further one or more subsequent room temperature-curable organopolysiloxane compositions onto the partially cured first layer using a 3D printing device to form a second and optionally further one or more subsequent layers, wherein each composition has a thixotropy index of 5 or higher and lower than 10; and iv) allowing the second and optionally further one or more subsequent layers under non-heated conditions during each layer formation to form a partially cured second and optionally further one or more subsequent layers.

The present invention is a spin wave waveguide structure including: an insulating magnetic film; and a periodic conductor film disposed on at least one surface of both surfaces of the insulating magnetic film, the periodic conductor film being formed of a conductor film having a periodic structure, in which the periodic structure of the periodic conductor film is such that the conductor film is formed of an assembly of a plurality of fragment films, the fragment films are electrically insulated from each other, the insulation is due to the fragment films being separated by a plurality of holes and grooves connecting the plurality of holes or due to a non-magnetic and non-conductive material existing in at least a portion of the holes and grooves, the spin wave waveguide structure includes, on the insulating magnetic film, a portion where the periodic conductor film is present and a portion where the conductor film is not present, and the insulating magnetic film of the portion where the conductor film is not present functions as a spin wave waveguide. Accordingly, a spin wave waveguide structure capable of guiding spin waves without changing the shape of a magnetic material is provided.

Provided is a fluoropolyether-based curable composition containing: (A) a fluorine-containing compound having at least two secondary amino groups in one molecule and having a divalent perfluoropolyether group in the main chain; and (B) a fluorine-containing compound having at least two epoxy groups in one molecule and having a monovalent or divalent perfluoropolyether group in the main chain, in an amount such that the epoxy groups in component (B) are 0.5-5 moles per mole of the secondary amino groups in component (A). This fluoropolyether-based curable composition has a longer pot life than conventional compositions, can be cured at room temperature or by heating, and gives a cured product having reduced hardness and good mechanical properties.

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