Patent · US Active

Phase change compositions

US10767093B2 · kind B2 · utility

1Cited by

1References

16Claims

0Family size

Assignee

Sunamp Limited · GB

Inventors

Andrew Bissell · Morham, GB
David Oliver · Ballston Lake, US
Colin Richard Pulham · Morham, GB

Key dates

Filing date	Apr 24, 2018
Grant date	Sep 8, 2020
Priority date	—
Expiry date	Apr 24, 2038

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09K5/063
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

There are herein described phase change materials containing sodium acetate trihydrate having improved homogeneity, a process for the preparation of said materials, and their utility in phase change systems. More particularly, the present invention relates to the use of phase change compositions comprising sodium acetate trihydrate, at least one alkali soluble polymer for inhibition of sodium acetate anhydrous crystal formation in sodium acetatetrihydrate containing phase change materials, and at least one sodium acetate trihydrate nucleation promoter, and, if a lower phase change temperature is required, at least one melting point depressing agent.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.