Claims
- 1. A process for reducing the extractable protein content of a natural rubber latex article comprising the steps of
a) immersing a former in a coagulant solution to coat the former with a layer of coagulant; b) immersing said coagulant-coated former into a natural rubber latex to deposit a latex layer onto the former; c) allowing the latex on the former to partially dry to form a gel-like deposit; d) curing the latex on said leached latex-coated former; e) leaching the cured latex on the former in at least one aqueous solution; and f) removing the finished article from the former.
- 2. The process of claim 1 wherein said aqueous solution contains from 0.01 to 10 percent by weight of ionic content.
- 3. The process of claim 2 wherein said ionic content is from 0.5 to 7 percent by weight.
- 4. The process of claim 1 wherein said leaching occurs for from 30 seconds to 30 minutes.
- 5. The process of claim 4 wherein said leaching occurs for from 1 to 20 minutes.
- 6. The process of claim 1 wherein said leach step e) consists of from 1 to 8 separate immersion steps in different tanks, said aqueous solutions in each tank may be the same or different solutions.
- 7. The process of claim 1 wherein said aqueous solution comprises a buffered solution having a pH of from 2 to 14.
- 8. The process of claim 7 wherein said buffered solution pH is between 3 and 12.
- 9. The process of claim 1 wherein said aqueous solution has a temperature of from 30° C. to 90° C.
- 10. The process of claim 1 further comprising leaching the latex article in an aqueous solution prior to curing between steps c) and d).
- 11. The process of claim 1 wherein said article is coated directly on at least one side with a polymer coating.
Parent Case Info
[0001] This application claims priority pursuant to 35 U.S.C. §119 from U.S. Provisional Application Ser. No 60/312,032 filed Aug. 13, 2001.
Provisional Applications (1)
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Number |
Date |
Country |
|
60312032 |
Aug 2001 |
US |