Back to results
US 11,578,183 B2Granted
Resin composition, method for producing resin composition, resin composition molded body, and method for producing resin composition molded body
AssigneeSomar Corporation
InventorsHirohisa Ishizaki, Akira Ochiai
Life of this patent
Estimating the term…
Abstract
A resin composition including: a magnetic fluid that includes magnetic particles, a dispersant, and a dispersion medium; and a resin or precursor thereof that includes, in a molecule thereof, at least one partial structure selected from the group consisting of a diene skeleton, a silicone skeleton, a urethane skeleton, a 4- to 7-membered ring lactone skeleton, an alkyl group having from 6 to 30 carbon atoms and an alkylene group having from 6 to 30 carbon atoms, a production method thereof, a resin composition molded body obtained by using the resin composition, and a production method thereof.
Claims13
A resin composition comprising:
- a magnetic fluid that includes magnetic particles, a dispersant, and a dispersion medium;
- at least one selected from the group consisting of a curing agent and a cross-linking agent;
- and
- a thermosetting resin that is selected from the group consisting of an epoxy resin, a silicone resin and a polyurethane resin, and that includes, in a molecule thereof, at least one partial structure selected from the group consisting of a diene skeleton, a silicone skeleton, and a resin skeleton containing an alkyl group having from 6 to 30 carbon atoms or an alkylene group having from 6 to 30 carbon atoms, wherein the diene structure has a rubber component structure selected from the group consisting of nitrile butadiene rubber, carboxy group-terminated butadiene nitrile rubber, butadiene rubber and acrylic rubber, the silicone skeleton has a structure derived from an alkenyl group-containing organopolysiloxane, and a content of the dispersion medium with respect to a total amount of the resin composition is from 1% to 5% by mass,
- wherein the resin composition exhibits superparamagnetism.
2 more elements
A method for producing a resin composition, the method comprising:
- preparing a resin mixture including (i) a magnetic fluid that includes magnetic particles, a dispersant, and a dispersion medium, (ii) at least one selected from the group consisting of a curing agent and a cross-linking agent, and (iii) a thermosetting resin that is selected from the group consisting of an epoxy resin, a silicone resin and a polyurethane resin, and that includes, in a molecule thereof, at least one partial structure selected from the group consisting of a diene skeleton, a silicone skeleton and a resin skeleton containing an alkyl group having from 6 to 30 carbon atoms or an alkylene group having from 6 to 30 carbon atoms, wherein the diene structure has a rubber component structure selected from the group consisting of nitrile butadiene rubber, carboxy group-terminated butadiene nitrile rubber, butadiene rubber and acrylic rubber, the silicone skeleton has a structure derived from an alkenyl group-containing organopolysiloxane, and a content of the dispersion medium with respect to a total amount of the resin composition is from 1% to 5% by mass;
- and
- heating the resin mixture to remove the dispersion medium, to obtain a resin composition that exhibits superparamagnetism.
A method for producing a resin composition molded body, the method comprising:
- preparing a resin mixture including (i) a magnetic fluid that includes magnetic particles, a dispersant, and a dispersion medium, (ii) at least one selected from the group consisting of a curing agent and a cross-linking agent;
- and (iii) a thermosetting resin that is selected from the group consisting of an epoxy resin, a silicone resin and a polyurethane resin, and that includes, in a molecule thereof, at least one partial structure selected from the group consisting of a diene skeleton, a silicone skeleton, and a resin skeleton containing an alkyl group having from 6 to 30 carbon atoms or an alkylene group having from 6 to 30 carbon atoms, wherein the diene structure has a rubber component structure selected from the group consisting of nitrile butadiene rubber, carboxy group-terminated butadiene nitrile rubber, butadiene rubber and acrylic rubber, the silicone skeleton has a structure derived from an alkenyl group-containing organopolysiloxane, and a content of the dispersion medium with respect to a total amount of the resin composition is from 1% to 5% by mass;
- heating the resin mixture to remove the dispersion medium;
- and
- heat molding the resin mixture from which the dispersion medium has been removed, to obtain a resin composition that exhibits superparamagnetism.
2 more elements
Dependencies are inferred from the claim text.