Processing

Please wait...

Settings

Settings

Goto Application

1. WO2020112886 - PLASTICIZED POLYVINYL CHLORIDE COMPOSITIONS WITH ENHANCED RESISTANCE TO BIOLOGICAL GROWTH

Note: Text based on automatic Optical Character Recognition processes. Please use the PDF version for legal matters

[ EN ]

CLAIMS

What is claimed is:

1. A PVC composition comprising:

(i) polyvinyl chloride;

(ii) a plasticizer; and

(iii) sulfur;

where the PVC composition includes from about 0.05 part to 5.0 parts by weight sulfur per 100 parts by weight of the PVC in the PVC composition.

2. The PVC composition of claim 1, where the PVC composition includes from about 0.12 part to 1.0 parts by weight sulfur per 100 parts by weight of the PVC in the PVC composition.

3. The PVC composition of claim 1, where the PVC composition includes from about 0.25 part to 0.75 parts by weight sulfur per 100 parts by weight of the PVC in the PVC composition.

4. The PVC composition of claim 1, where the PVC composition includes from about 0.30 part to 0.60 parts by weight sulfur per 100 parts by weight of the PVC in the PVC composition.

5. The PVC composition of claim 1, where the plasticizer is selected from acetates, adipates, azelates, benzoates, citrates, cyclohexanoates, epoxy esters, orthophthalates, esters, phosphate esters, polymeric plasticizers, sebacates, succinates, sulfonamides, terephtalates, and trimellitates.

6. The PVC composition of claim 1, where the PVC composition further includes a stabilizer.

7. The PVC composition of claim 1, where the PVC composition further includes a filler.

8. The PVC composition of claim 1, where the PVC composition further includes a lubricant, a process aid, or both a lubricant and a process aid.

9. The PVC composition of claim 1, where the PVC composition is a plastisol.

10. The PVC composition of claim 1, where the PVC composition is a dry blend.

11. The PVC composition of claim 1, where the PVC composition includes from about 10% by weight to about 99% by weight PVC based upon the total weight of the PVC composition.

12. An article prepared from a PVC composition comprising:

(i) polyvinyl chloride;

(ii) a plasticizer; and

(iii) sulfur;

where the PVC composition includes from about 0.05 part to 5.0 parts by weight sulfur per 100 parts by weight of the PVC in the PVC composition.

13. The article of any of the preceding claims, where the article has at least one surface.

14. The article of any of the preceding claims, where the distribution of sulfur is non-homogenous and is in a higher concentration at the at least one surface.

15. The article of any of the preceding claims, where the PVC composition includes from about 0.12 part to 1.0 parts by weight sulfur per 100 parts by weight of the PVC in the PVC composition.

16. The article of any of the preceding claims, where the PVC composition includes from about 0.25 part to 0.75 parts by weight sulfur per 100 parts by weight of the PVC in the PVC composition.

17. The article of any of the preceding claims, where the PVC composition includes from about 0.30 part to 0.60 parts by weight sulfur per 100 parts by weight of the PVC in the PVC composition.

18. The article of any of the preceding claims, where the plasticizer is selected from acetates, adipates, azelates, benzoates, citrates, cyclohexanoates, epoxy esters, orthophthalates, esters, phosphate esters, polymeric plasticizers, sebacates, succinates, sulfonamides, terephtalates, and trimellitates.

19. The article of any of the preceding claims, where the PVC composition further includes a stabilizer.

20. The article of any of the preceding claims, where the PVC composition further includes a filler.

21. The article of any of the preceding claims, where the PVC composition further includes a lubricant, a process aid, or both a lubricant and a process aid.

22. The article of any of the preceding claims, where the PVC composition is a plastisol.

23. The article of any of the preceding claims, where the PVC composition is a dry blend.

24. The article of any of the preceding claims, where the PVC composition includes from about 10% by weight to about 99% by weight PVC based upon the total weight of the PVC composition.

25. A method for preparing a PVC composition having improved resistance to biological growth, the method comprising mixing:

(i) polyvinyl chloride;

(ii) a plasticizer; and

(iii) sulfur;

to form a PVC composition, where the PVC composition includes from about 0.05 part to 5.0 parts by weight sulfur per 100 parts by weight of the PVC in the PVC composition.

26. The method of any of the preceding claims, where the PVC composition includes from about 0.12 part to 1.0 parts by weight sulfur per 100 parts by weight of the PVC in the PVC composition.

27. The method of any of the preceding claims, where the PVC composition includes from about 0.25 part to 0.75 parts by weight sulfur per 100 parts by weight of the PVC in the PVC composition.

28. The method of any of the preceding claims, where the PVC composition includes from about 0.30 part to 0.60 parts by weight sulfur per 100 parts by weight of the PVC in the PVC composition.

29. The method of any of the preceding claims, where the plasticizer is selected from acetates, adipates, azelates, benzoates, citrates, cyclohexanoates, epoxy esters, orthophthalates, esters, phosphate esters, polymeric plasticizers, sebacates, succinates, sulfonamides, terephtalates, and trimellitates.

30. The method of any of the preceding claims, where the PVC composition further includes a stabilizer.

31. The method of any of the preceding claims, where the PVC composition further includes a filler.

32. The method of any of the preceding claims, where the PVC composition further includes a lubricant, a process aid, or both a lubricant and a process aid.

33. The method of any of the preceding claims, where the PVC composition is a plastisol.

34. The method of any of the preceding claims, where the PVC composition is a dry blend.

35. The method of any of the preceding claims, where the PVC composition includes from about 10% by weight to about 99% by weight PVC based upon the total weight of the PVC composition.