IP Library Granted Patent US 11,352,466
Granted Patent B2
US 11,352,466 · App. 16/612,120 · Granted Jun 7, 2022

Resin composition, heat storage material, and commodity

Inventors: Naoki Furukawa (Tokyo, JP); Akira Nagai (Tokyo, JP); Tsuyoshi Morimoto (Tokyo, JP); Keiko Kizawa (Tokyo, JP); Nozomi Matsubara (Tokyo, JP)
Assignee: SHOWA DENKO MATERIALS CO., LTD.
C08J3/24C08F220/1804C08F220/1812C08F220/1818C08F220/325C08K5/3445C08L33/08C08L33/10C08L2201/00
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Quick Facts
Patent No.
US 11,352,466
App. No.
16/612,120
Granted
Jun 7, 2022
Kind
B2
Abstract

An aspect of the present invention is a resin composition comprising: an acrylic resin; and a curing agent, wherein the acrylic resin is a resin obtained by polymerizing monomer components comprising a first monomer represented by the following formula (1): wherein R 1 represents a hydrogen atom or a methyl group, and R 2 represents an alkyl group having 12 to 30 carbon atoms, and a second monomer copolymerizable with the first monomer and having a reactive group capable of reacting with the curing agent.

Claims (24)

1. A resin composition comprising:

an acrylic resin; and

a curing agent,

wherein the acrylic resin is a resin obtained by polymerizing monomer components comprising a first monomer represented by the following formula (1):

wherein R 1 represents a hydrogen atom or a methyl group, and R 2 represents an alkyl group having 12 to 30 carbon atoms, and a second monomer copolymerizable with the first monomer and having a reactive group capable of reacting with the curing agent, wherein a content of the first monomer is 60 parts by mass or more based on 100 parts by mass of the monomer components, a content of the second monomer is 2 parts by mass or more and 25 parts by mass or less based on 100 parts by mass of the monomer components, and wherein a weight average molecular weight of the acrylic resin is 200000 or more.

2. A resin composition comprising:

an acrylic resin; and

a curing agent,

wherein the acrylic resin comprises a first structural unit represented by the following formula (2):

wherein R 3 represents a hydrogen atom or a methyl group, and R 4 represents an alkyl group having 12 to 30 carbon atoms, and a second structural unit having a reactive group capable of reacting with the curing agent, wherein a content of the first structural unit is 60 parts by mass or more based on 100 parts by mass of the entire structural units constituting the acrylic resin, a content of the second structural unit is 2 parts by mass or more and 25 parts by mass or less based on 100 parts by mass of the entire structural units constituting the acrylic resin, and wherein a weight average molecular weight of the acrylic resin is 200000 or more.

3. The resin composition according to claim 1 , wherein the curing agent is at least one curing agent selected from the group consisting of an isocyanate curing agent, a phenolic curing agent, an amine curing agent, an imidazole curing agent, and an acid anhydride curing agent.

4. The resin composition according to claim 1 , wherein the reactive group is at least one group selected from the group consisting of a carboxyl group, a hydroxyl group, an isocyanate group, an amino group, and an epoxy group.

5. The resin composition according to claim 1 , wherein a content of the acrylic resin is 50 parts by mass or more based on 100 parts by mass of the resin composition.

6. The resin composition according to claim 1 , wherein the reactive group is an epoxy group.

7. The resin composition according to claim 1 , wherein the resin composition is liquid at 90° C.

8. The resin composition according to claim 7 , wherein a viscosity at 90° C. is 100 Pa·s or less.

9. The resin composition according to claim 1 , wherein the resin composition is for use in forming a heat storage material.

10. The resin composition according to claim 1 , wherein the resin composition is for use in forming a water repellent material, a defrosting material, a refractive index adjusting material, a lubricant, an adsorbing material, a thermosetting stress relaxation material, or a low dielectric material.

11. A heat storage material comprising a cured product of the resin composition according to claim 1 .

12. An article comprising:

a heat source; and

a cured product of the resin composition according to claim 1 , the cured product provided to be in thermal contact with the heat source.

13. The resin composition according to claim 1 , wherein the content of the second monomer is 3 parts by mass or more and 25 parts by mass or less based on 100 parts by mass of the monomer components.

14. The resin composition according to claim 2 , wherein a content of the second structural unit is 3 parts by mass or more and 25 parts by mass or less based on 100 parts by mass of the entire structural units constituting the acrylic resin.

Assignments (4)
CHANGE OF ADDRESS Recorded Feb 14, 2024
From: RESONAC CORPORATION
To: RESONAC CORPORATION
Reel/Frame 066599/0037 →
CHANGE OF NAME Recorded Mar 8, 2023
From: SHOWA DENKO MATERIALS CO., LTD.
To: RESONAC CORPORATION
Reel/Frame 062992/0805 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 14, 2021
From: FURUKAWA, NAOKI; NAGAI, AKIRA; MORIMOTO, TSUYOSHI; KIZAWA (DECEASED) BY SHIGEAKI FUNYU, LEGAL REPRESENTATIVE FOR THE ESTATE OF KEIKO KIZAWA, KEIKO; MATSUBARA, NOZOMI
To: HITACHI CHEMICAL COMPANY, LTD.
Reel/Frame 056848/0843 →
CHANGE OF NAME Recorded Jul 14, 2021
From: HITACHI CHEMICAL COMPANY, LTD.
To: SHOWA DENKO MATERIALS CO., LTD.
Reel/Frame 056864/0519 →