Patent · US Active

Refrigerant

US8029691B2 · kind B2 · utility

0Cited by

2References

7Claims

0Family size

Inventors

Nicholas Cox · Lavina, US
Victor Mazur · Odesa, UA
Daniel Colbourne · Ware, GB
Andrew Stevenson · Hemel Hempstead, GB

Key dates

Filing date	Dec 14, 2010
Grant date	Oct 4, 2011
Priority date	—
Expiry date	Dec 14, 2030

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09K2205/32
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

A refrigerant that is azeotropic or near-azeotropic comprises a binary blend of R744 and R41. In one embodiment the binary blend has a molar composition of 20 to 60 percent R744, the remainder being R41.

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