Methods to remove proteins from natural rubber latex

Details Methods to remove proteins from natural rubber latex Methods to remove proteins from natural rubber latex

1995-03-15

1996-10-08

Michl, Paul R.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Treating polymer containing material or treating a solid...

523310, 524925, 528491, 528492, 210669, C08C 104, C08F 616

Patent

active

055632416

ABSTRACT:
Natural latex rubber having reduced protein contamination is achieved by a method wherein rubber latex is contacted with an anion exchange resin at a pH greater than the isoelectric point of the proteins. After allowing the protein to complex with the resin, the protein-resin complex is separated from the latex to provide latex rubber having reduced protein contamination. Alternatively, or in addition, cation exchange resin may be contacted with latex rubber to increase the solubility of latex protein in the latex. In another embodiment, ion exchange resin may be added to water, and the water used to wash an article formed of latex, to thereby reduce protein contamination in the article. The methods allow the manufacture of latex-based articles having reduced irritability to skin.

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