PVC compositions
View Patent ↗A PVC composition comprising PVC and a C 4 -C 30 alkyl pyrrolidone additive present in an amount of 0.1 to 20 phr sufficient to improve PVC processing or treatment compared to a control composition without said additive.
1. A PVC composition comprising PVC and a C 4 -C 30 alkyl pyrrolidone additive present in an amount of 1 to 10 phr sufficient to improve PVC processing or treatment compared to a control composition without said additive.
2. The PVC composition according to claim 1 wherein the additive is present in an amount of 1 to 5 phr.
3. The PVC composition according to claim 2 wherein the additive is present in an amount of 3 to 5 phr.
4. The PVC composition according to claim 1 wherein the PVC composition exhibits at least one of: decreased gelling temperature; increased gelling speed; increased transparency; increased homogeneity; reduced haze; reduced hardness; improved melt flow;
improved impact resistance; improved filler compatibility; increased cold flexibility; improved crack resistance and increased secondary plasticizers/extenders compatibility as compared to the control composition.
5. The PVC composition according to claim 1 wherein the C 4 -C 30 alkyl pyrrolidone includes linear, branched or cyclo-alkyl pyrrolidones.
6. The PVC composition according to claim 1 wherein the C 4 -C 30 alkyl pyrrolidone is liquid at room temperature.
7. The PVC composition according to claim 1 in the form of a rigid, semi-rigid or flexible PVC product wherein said product is formed by one or more of calendering, extrusion, injection molding, plastisol, foam, and dispersion.
8. The PVC composition according to claim 7 wherein said product is selected from the group consisting of pipes, tubes, windows, door profiles, rigid sheets, packaging, insulation jackets for wires and cables, liners for pools, ponds, landfill, irrigation trench, sheeting for water beds, fabric coating, carpet backing, automotive parts like dashboards, door panels, arm rests, car underbody coating, tiles, wall coverings, flooring sheets, packaging films, conveyor belts, tarpaulins, roofing membranes, electrical plugs and connections, inflatable sheets, toys, garden hose, pipes and tubing, agricultural films, refrigerator and freezer gasketing, shoe soles and uppers, boots, and fishing lures.
9. A PVC composition comprising PVC and a C 4 -C 30 alkyl pyrrolidone additive present in an amount of 0.1 to 3 phr sufficient to improve PVC processing or treatment compared to a control composition without said additive.
10. The PVC composition according to claim 9 wherein the additive is present in an amount of 0.1 to 1 phr.
11. The PVC composition according to claim 9 wherein the PVC composition exhibits at least one of: decreased gelling temperature; increased gelling speed; increased transparency; increased homogeneity; reduced haze; reduced hardness; improved melt flow; improved impact resistance; improved filler compatibility; increased cold flexibility; improved crack resistance and increased secondary plasticizers/extenders compatibility as compared to the control composition.
12. The PVC composition according to claim 9 wherein the C 4 -C 30 alkyl pyrrolidone includes linear, branched or cyclo-alkyl pyrrolidones.
13. The PVC composition according to claim 9 wherein the C 4 -C 30 alkyl pyrrolidone is liquid at room temperature.
14. The PVC composition according to claim 9 in the form of a rigid, semi-rigid or flexible PVC product wherein said product is formed by one or more of calendering, extrusion, injection molding, plastisol, foam, and dispersion.
15. The PVC composition according to claim 14 wherein said product is selected from the group consisting of pipes, tubes, windows, door profiles, rigid sheets, packaging, insulation jackets for wires and cables, liners for pools, ponds, landfill, irrigation trench, sheeting for water beds, fabric coating, carpet backing, automotive parts like dashboards, door panels, arm rests, car underbody coating, tiles, wall coverings, flooring sheets, packaging films, conveyor belts, tarpaulins, roofing membranes, electrical plugs and connections, inflatable sheets, toys, garden hose, pipes and tubing, agricultural films, refrigerator and freezer gasketing, shoe soles and uppers, boots, and fishing lures.