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Class Information
Number: 528/931
Name: Synthetic resins or natural rubbers -- part of the class 520 series > Physical treatment of natural rubber or natural rubber containing material or chemical treatment of non-rubber portion thereof, e.g., extraction of rubber from milk weed, etc.
Description: Subject matter relating to the recovery and physical processing of natural rubber.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6923985 |
Bioerodable polymeric adhesives for tissue repair |
Aug. 2, 2005 |
| 6335407 |
Deproteinized natural rubber and process for producing the same |
Jan. 1, 2002 |
| 6299905 |
Bioerodable polymeric adhesives for tissue repair |
Oct. 9, 2001 |
| 6265479 |
Deproteinizing agent and method of preparing cationic deproteinized natural rubber latex using the same |
Jul. 24, 2001 |
| 6235860 |
Natural rubber product from fig tree and production method thereof |
May. 22, 2001 |
| 5858150 |
Pressure-sensitive adhesive based on partially oriented and partially crystallized elastomer |
Jan. 12, 1999 |
| 5731358 |
Process for the manufacture of high grade devulcanized rubbers from scrap and reject rubber items |
Mar. 24, 1998 |
| 5321111 |
Method for extracting polyisoprenes from plants |
Jun. 14, 1994 |
| 5026641 |
Bacteria culture and fermentation using the same |
Jun. 25, 1991 |
| 4332932 |
Method for producing a rubber melt in a temperature-controlled screw extruder |
Jun. 1, 1982 |
| RE30378 |
Process for recovery of polymers from their dispersions in liquids |
Aug. 19, 1980 |
| 4136251 |
Extrusion process for recovery of polymers from their dispersions in liquids |
Jan. 23, 1979 |
| 4122249 |
Solvent removal from chlorinated polymers |
Oct. 24, 1978 |
| 4098991 |
Removal of catalytic residues from hydrogenated thermoplastic or elastomeric polymers |
Jul. 4, 1978 |
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