IP Library Granted Patent US 11,306,235
Granted Patent B2
US 11,306,235 · App. 17/065,173 · Granted Apr 19, 2022

Compositions containing difluoromethane and fluorine substituted olefins

Inventors: Ryan Hulse (Getzville, NY); Rajiv Ratna Singh (Getzville, NY); Justin Becker (Morris Plains, NJ); Robert Gerard Richard (Hamburg, NY); Rajat S. Basu (East Amherst, NY); Hang T. Pham (Amherst, NY); Ian Shankland (Randolph, NJ)
Assignee: HONEYWELL INTERNATIONAL INC.
C09K5/045F25B9/00C09K2205/122C09K2205/126C09K2205/22C09K2205/40
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Quick Facts
Patent No.
US 11,306,235
App. No.
17/065,173
Granted
Apr 19, 2022
Kind
B2
Abstract

Compositions comprising multi-fluorinated olefins and HFC-32 are disclosed. Such compositions are useful particularly for in stationary refrigeration and air conditioning equipment.

Claims (14)

1. A refrigerant for replacing R-404A in a medium temperature or low temperature refrigeration system or for an air conditioning system, said refrigerant consisting of:

(a) from 70% to 80% by weight of 1234yf; and

(b) from 20% to 30% by weight of R-32.

2. An air conditioning system comprising the refrigerant of claim 1 .

3. A stationary air conditioning system comprising the refrigerant of claim 1 .

4. A medium temperature refrigeration system comprising the refrigerant of claim 1 .

5. The medium temperature or a low temperature refrigeration system according to claim 4 wherein said system was a system for use with R-404A.

6. A refrigerant for replacing R-404A in a low temperature or a medium temperature refrigeration system or for an air conditioning system, said refrigerant consisting of:

(a) about 80% by weight of 1234yf; and

(b) about 20% by weight of R-32.

7. An air conditioning system comprising the refrigerant of claim 6 .

8. A stationary air conditioning system comprising the refrigerant of claim 6 .

9. A medium temperature refrigeration system comprising the refrigerant of claim 6 .

10. The medium temperature or the low temperature refrigeration system according to claim 9 wherein said system was a system for use with R-404A.

Assignments (3)
NUNC PRO TUNC ASSIGNMENT Recorded Apr 13, 2026
From: HONEYWELL INTERNATIONAL INC.
To: SOLSTICE ADVANCED MATERIALS US, INC.
Reel/Frame 074347/0265 →
SECURITY INTEREST Recorded Jan 12, 2026
From: SOLSTICE ADVANCED MATERIALS US, INC.
To: JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT
Reel/Frame 074569/0260 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 11, 2025
From: HULSE, RYAN; SINGH, RAJIV RATNA; BECKER, JUSTIN; RICHARD, ROBERT GERARD; BASU, RAJAT S.; PHAM, HANG T.; SHANKLAND, IAN
To: HONEYWELL INTERNATIONAL INC.
Reel/Frame 070476/0667 →