Himeji, Japan
Himeji, Japan

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Patent
Daicel Corporation | Date: 2017-05-03

Provided is a monomer composition that has rapid curability and can be cured rapidly, even in the presence of oxygen and/or water, to form a cured product having excellent adhesion to a wide variety of substrates. The monomer composition according to the present invention contains a vinyl ether compound (A). The vinyl ether compound (A) includes a vinyl ether compound (a) having a cyclic ether skeleton. The monomer composition further contains at least one compound selected from the group consisting of a vinyl ether compound (a) having a chain hydrocarbon skeleton, a divinyl ether compound (a-1) having a cyclic hydrocarbon skeleton, an oxetane compound (B), and an epoxy compound (C).


Patent
Daicel Corporation | Date: 2016-12-22

A syringe includes a holding portion that accommodates an injection objective substance, a driving portion that applies injection energy, and a nozzle portion that includes a passage for injection, with these portions being loaded into a housing independently, whereby a state where the injection objective substance can be injected is established. The syringe includes a regulating means for regulating a loading position of the holding portion and the driving portion within the housing so that a loading state, where the holding portion and the driving portion are always loaded in the same order into the housing, is established for injection of the injection objective substance. Due to this, it is possible to facilitate injection of injection liquid ideal for various purposes and to improve users convenience.


Patent
Daicel Corporation | Date: 2017-05-03

Provided is a monomer composition that has rapid curability and can be rapidly cured, even in the presence of oxygen and/or water, to form a cured product having excellent adhesion to a wide variety of substrates. The monomer composition according to the present invention includes at least one cationically curable monomer. The at least one cationically curable monomer includes at least one of 3-allyloxyoxetane and 3-(2-ethylhexyloxy)oxetane. The at least one of 3-allyloxyoxetane and 3-(2-ethylhexyloxy)oxetane is present in a total content of 5 weight percent or more of the total weight of the monomer composition.


Patent
Daicel Corporation | Date: 2017-05-03

Provided is a monomer composition that has rapid curability and can be rapidly cured even in the presence of oxygen and/or water, to form a cured product having excellent adhesion to a wide variety of substrates. The monomer composition according to the present invention includes vinyl ether compounds (A). The monomer composition contains a monofunctional monomer in an amount of 20 to 80 weight percent, a hydroxy-free multifunctional vinyl ether compound in an amount of 5 to 80 weight percent, and a hydroxy-containing vinyl ether compound in an amount of 0.1 weight percent to less than 10 weight percent, where all weight percentages are based on the total weight of the monomer composition.


Patent
Daicel Corporation | Date: 2017-05-03

Provided is a monomer composition that has rapid curability and can be rapidly cured even in the presence of oxygen and/or water, to form a cured product having excellent adhesion to a wide variety of substrates. The monomer composition according to the present invention contains a multifunctional vinyl ether compound in an amount of 10 to 80 weight percent, a bifunctional oxetane compound represented by Formula (b) in an amount of 0.5 to 20 weight percent, and a monofunctional oxetane compound represented by Formula (b) in an amount of 5 to 80 weight percent. In the formulae, Ring Z is selected from an aromatic hydrocarbon ring and a structure including two or more aromatic hydrocarbon rings bonded to each other through a single bond or a linkage group; R represents a monovalent aliphatic hydrocarbon group; R is selected from hydrogen and ethyl; and m represents an integer of 0 or more.


Patent
Daicel Corporation and Toyota Motor Corporation | Date: 2016-10-20

An automotive part comprises a substrate and a heat-resistant layer. The heat-resistant layer contains a first layer on a surface of the substrate and a second layer on the first layer. The first layer contains a polyamideimide resin. The second layer contains a cured product of (A) a curable liquid composition containing an alicyclic epoxy compound represented by the formula (1):


Patent
Daicel Corporation and Yamaguchi University | Date: 2015-07-07

Provided is a compound that thickens and/or gelatinizes a fluid organic substance to a desired viscosity, or uniformly stabilizes a composition containing the fluid organic substance. Also provided are: a thickening/stabilizing agent including the compound, a thickened/stabilized composition including the thickening/stabilizing agent and a fluid organic substance, and a method for producing the composition. The compound according to the present invention is represented by Formula (1): (R^(2)HNOC)_(4-n)R^(1)(CONHR^(3))_(n)(1) where R^(1 )is a group resulting from removing four hydrogen atoms from the structural formula of an aromatic hydrocarbon or cyclohexane; R^(2 )is, independently in each occurrence, an aliphatic hydrocarbon group containing 1 to 4 carbon atoms; R^(3 )is, independently in each occurrence, an aliphatic hydrocarbon group containing 6 or more carbon atoms; and n is an integer of 1 to 3.


Patent
Daicel Corporation and Yamaguchi University | Date: 2017-05-17

Provided is a compound that thickens and/or gelatinizes a fluid organic substance to a desired viscosity, or uniformly stabilizes a composition containing the fluid organic substance. Also provided are: a thickening/stabilizing agent including the compound, a thickened/stabilized composition including the thickening/stabilizing agent and a fluid organic substance, and a method for producing the composition. The compound according to the present invention is represented by Formula (1):(R^(2)-HNOC)_(4-n)-R^(1)-(CONH-R^(3))_(n)(1)where R^(1) is a group resulting from removing four hydrogen atoms from the structural formula of an aromatic hydrocarbon or cyclohexane; R^(2) is, independently in each occurrence, an aliphatic hydrocarbon group containing 1 to 4 carbon atoms; R^(3) is, independently in each occurrence, an aliphatic hydrocarbon group containing 6 or more carbon atoms; and n is an integer of 1 to 3.


A method of disintegrating pulp for use in cellulose acetate production includes: a primary disintegration step of disintegrating a pulp sheet into pulp pieces having an average area of not more than 45 cm^(2); and a secondary disintegration step of disintegrating the pulp pieces with an impact shock exerted by a jet mill (20). The jet mill (20) includes: a cylindrical casing (21) provided with an inlet (21d) and an outlet (21 e); and a rotor (25) including a plurality of blades (25a) provided on its outer peripheral portion, the plurality of blades (25a) facing an inner peripheral surface of the casing (21).


Patent
Daicel Corporation | Date: 2017-05-31

The present invention provides a technique for preparing a porous cellulose medium, through the gelation of a solution in which cellulose acetate as a raw material is dissolved, which does not cause a reaction involving the migration of substances. Specifically, a method for producing a porous cellulose medium is provided which includes the steps of gelling a flowable homogeneous composition containing cellulose acetate, an organic solvent, and water through a decrease in temperature; and hydrolyzing the cellulose acetate contained in the resulting gel.

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