Heat storage material composition, heat storage material and transport container

• US 10,662,358 B2
• Filed: 12/10/2013
• Issued: 05/26/2020
• Est. Priority Date: 12/11/2012
• Status: Active Grant

• Current Assignee: Kaneka Corporation, Tamaikasei Co., Ltd.
• Original Assignee: Kaneka Corporation
• Inventors: Ueda, Toru, Sato, Keiji
• Primary Examiner(s): Robinson, Elizabeth A
• Assistant Examiner(s): Fitzhugh, Julius
• Application Number:
  US14/649,657
• Publication Number:
  US 20150299549A1
• Time in Patent Office: 2,359 Days
• Field of Search: 392339, 252 71, 252 73, 252 67, 252 70, 165 10, 16510417, 165902, 16510411, 16510415, 16510413, 165 61, 165920, 428 314, 106802, 126618, 126617, 585 9, 604291
• CPC Class Codes: B65D 81/3813 rigid container being in the form of a box, tray or like container
• CPC Class Codes: C09K 5/063 Materials absorbing or liberating heat during crystallisation; Heat storage materials
• CPC Class Codes: F28D 20/02 using latent heat
• CPC Class Codes: Y02E 60/14 Thermal energy storage

Abstract

A heat storage material composition having a melting temperature utilized for control of an optional management temperature, providing no variation in melting behavior and solidification behavior, and having a constant melting temperature. The heat storage material composition consists primarily of a mixture of a higher alkane having carbon number of 9 to 24 and a higher alcohol having carbon number of 6 to 20, and the mixture has a substantially single melting peak in DSC curve measured by a differential scanning calorimeter (DSC).

Claims

1. A heat storage material composition, comprising 90-98 wt % mixture of lauryl alcohol and n-octadecane;

and 2-10 wt % of hydroxypropyl cellulose,

wherein a molar fraction of the lauryl alcohol relative to the mixture of lauryl alcohol and n-octadecane is 65-89 mol %,

wherein the heat storage material composition is in a coagulation state, and

wherein the heat storage material composition has a single melting peak in a differential scanning calorimeter (DSC) curve in a temperature range of −

10 to 50°

C., the single melting peak constituting at least 90% of the area in the DSC curve.

2. The heat storage material composition according to claim 1, wherein the molar fraction of the lauryl alcohol relative to the mixture of lauryl alcohol and n-octadecane is 70-85 mol %.

3. The heat storage material composition according to claim 1, wherein the hydroxypropyl cellulose is 3-7 wt % of the heat storage material composition.

4. A heat storage material comprising said heat storage material composition according to claim 1.

5. A transport container comprising an insulation box and said heat storage material according to claim 4, arranged in said insulation box.

6. A heat storage material composition, consisting essentially of a mixture of lauryl alcohol and n-octadecane;

and 2-10 wt % of hydroxypropyl cellulose,

wherein a molar fraction of the lauryl alcohol relative to the mixture of lauryl alcohol and n-octadecane is 65-89 mol %,

wherein the heat storage material composition is in a coagulation state, and

wherein the heat storage material composition has a single melting peak in a differential scanning calorimeter (DSC) curve in a temperature range of −

10 to 50°

C., the single melting peak constituting at least 90% of the area in the DSC curve.

7. The heat storage material composition according to claim 6, wherein the molar fraction of the lauryl alcohol relative to the mixture of lauryl alcohol and n-octadecane is 70-85 mol %.

8. The heat storage material composition according to claim 6, wherein the hydroxypropyl cellulose is 3-7 wt % of the heat storage material composition.

9. A heat storage material comprising said heat storage material composition according to claim 6.

10. A transport container comprising an insulation box and said heat storage material according to claim 9, arranged in said insulation box.