IP Library › Granted Patent US 7,411,012
Granted Patent B2
US 7,411,012 · App. 11/273,663 · Granted Aug 12, 2008

Plasticized PVC compositions

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 7,411,012
App. No.
11/273,663
Granted
Aug 12, 2008
Kind
B2
Abstract

A stable, plasticized composition of PVC polymer including a C 4 -C 30 linear, branched or cyclo-alkyl pyrrolidone present in an amount of 5-400 phr sufficient to plasticize said PVC into a flexible state.

Claims (19)

1. A stable, plasticized composition of PVC polymer including a C 4 -C 30 linear, branched or cyclo-alkyl pyrrolidone present in an amount of 5-400 phr sufficient to plasticize said PVC into a flexible state.

2. A composition according to claim 1 wherein said amount is at least 10 phr.

3. A composition according to claim 1 wherein said amount is 10 to 100 phr.

4. A composition according to claim 1 which provides a PVC product characterized by a Shore A hardness value of <100.

5. A composition according to claim 1 which includes a C 6 -C 20 alkyl pyrrolidone.

6. A composition according to claim 1 which includes a C 6 -C 20 cyclo-alkyl pyrrolidone.

7. A composition according to claim 1 which is liquid at room temperature.

8. A composition according to claim 1 which includes a linear C 8 alkyl pyrrolidone.

9. A composition according to claim 1 which includes a linear C 12 alkyl pyrrolidone.

10. A PVC product including the composition of claim 1 is in the form of a calendared sheet, plastisol, foam, dispersion, film, siding, pipe or tubing.

11. A composition according to claim 7 further comprising a blend with one or more primary and/or secondary plasticizers.

12. A composition according to claim 1 wherein the alkyl pyrrolidone is liquid at room temperature.

13. A PVC product comprising a stable, plasticized composition of a PVC polymer including a C 4 -C 30 linear, branched or cyclo-alkyl pyrrolidone present in an amount of 5-400 phr sufficient to plasticize said PVC into a flexible state wherein said PVC product has a Shore A hardness value of less than 100.

14. A PVC product according to claim 13 wherein the composition is in the form of a calendered sheet, plastisol, foam, dispersion, film, siding, pipe or tubing.

15. A PVC product according to claim 13 wherein said pyrrolidone is present in an amount of 10 to 100 phr.

16. A PVC product according to claim 13 wherein said PVC polymer includes a C 6 -C 20 alkyl pyrrolidone.

17. A PVC product according to claim 13 wherein said PVC polymer includes a C 6 -C 20 cyclo-alkyl pyrrolidone.

18. A PVC product according to claim 13 wherein said PVC polymer includes a linear C 8 alkyl pyrrolidone.

19. A PVC product according to claim 13 wherein said PVC polymer includes a linear C 12 alkyl pyrrolidone.