IP Library › Granted Patent US 7,105,578
Granted Patent B2
US 7,105,578 · App. 10/253,242 · Granted Sep 12, 2006

Blowing agent blends

View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 7,105,578
App. No.
10/253,242
Granted
Sep 12, 2006
Kind
B2
Abstract

Foam blowing agent blends of trans-1,2-dichloroethylene and one or more pentanes are provided, as are polyol premixes and foam compositions containing such blends. The resulting foams exhibit dramatic improvement in fire resistance.

Claims (14)

1. A foam blowing agent composition consisting essentially of trans-1,2-dichloroethylene, at least one pentane selected from the group consisting of n-pentane, i-pentane and cyclopentane and optionally water.

2. A foam blowing agent composition consisting essentially of trans-1,2-dichloroethylene, cyclopentane and optionally water.

3. A foam blowing agent composition comprising trans-1,2-dichloroethylene, n-pentane and optionally water.

4. A foam blowing agent composition comprising trans-1,2-dichloroethylene, i-pentane and optionally water.

5. A foam blowing agent composition comprising trans-1,2-dichloroethylene, a blend of n-pentane and i-pentane and optionally water.

6. A foam blowing agent composition comprising trans-1,2-dichloroethylene, a blend of cyclopentane and i-pentane and optionally water.

7. A foam premix composition comprising a polyol and the foam blowing agent composition of claim 1 .

8. The foam premix composition of claim 7 wherein the pentane is cyclopentane.

9. The foam premix composition of claim 7 wherein the pentane is n-pentane.

10. The foam premix composition of claim 7 wherein the pentane is i-pentane.

11. The foam premix composition of claim 7 wherein the pentane is a blend of n-pentane and i-pentane.

12. The foam premix composition of claim 7 wherein the pentane is a blend of cyclopentane and i-pentane.

13. A foam blowing agent composition comprising trans-1,2-dichloroethylene, at least one pentane selected from the group consisting of n-pentane and i-pentane and optionally water.

14. A foam premix composition comprising a polyol and the foam blowing agent composition of claim 13 .

Assignments (1)
CHANGE OF NAME Recorded Nov 15, 2004
From: ATOFINA CHEMICALS, INC.
To: ARKEMA INC.
Reel/Frame 015394/0628 →