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Class Information
Number: 521/43
Name: Synthetic resins or natural rubbers -- part of the class 520 series > Synthetic resins (class 520, subclass 1) > Process of treating scrap or waste product containing solid organic polymer to recover a solid polymer therefrom > Process of treating scrap or waste product containing at least one polymer derived from ethylenic unsaturated monomers only > Treating rubber (or rubberlike materials) or polymer derived from a monomer having at least two ethylenic unsaturated moieties > Treating with organic chalcogen-containing material > Containing organic sulfur
Description: Subject matter wherein the organic chalcogen material contains sulfur.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7425584 |
Catalytic devulcanization of rubber |
Sep. 16, 2008 |
| 6797757 |
Article, including tires, having component or rubber composition which contains particles of pre-vulcanized rubber and blend of tetrathiodipropionic and trithiodipropionic acids |
Sep. 28, 2004 |
| 6590042 |
Recycled rubber processing and performance enhancement |
Jul. 8, 2003 |
| 6583211 |
Moldable composite material |
Jun. 24, 2003 |
| 6555588 |
Method for the production of a polypropylene blend |
Apr. 29, 2003 |
| 6489372 |
Polycarbonate isolation through homogenization devolatization |
Dec. 3, 2002 |
| 6346561 |
Pavement material |
Feb. 12, 2002 |
| 6310126 |
Mixer and process for use |
Oct. 30, 2001 |
| 6242501 |
Processes for the recovery of poly(arylene sulfide) |
Jun. 5, 2001 |
| 6180753 |
Process for treating a compound having epithio structures for disposal |
Jan. 30, 2001 |
| 6087406 |
Recycle of vulcanized fluorinated elastomers |
Jul. 11, 2000 |
| 6069181 |
Process for recycling polyarylene sulfides |
May. 30, 2000 |
| 5994416 |
Process for recycling polyarylene sulfides |
Nov. 30, 1999 |
| 5866678 |
Absorbent and method for production of absorbent resin |
Feb. 2, 1999 |
| 5770632 |
Reclaiming of elastomeric materials |
Jun. 23, 1998 |
| 5770633 |
Process for regenerating cross-linked, vulcanized flourine rubber |
Jun. 23, 1998 |
| 5677354 |
Process for reclaiming cured or semi-cured rubber |
Oct. 14, 1997 |
| 5604277 |
Rubber and plastic bonding |
Feb. 18, 1997 |
| 5504122 |
Recovery of dimethyl terephthalate from polymer mixtures |
Apr. 2, 1996 |
| 4851500 |
Process for preparing a rubber scrap composition |
Jul. 25, 1989 |
| 4579871 |
Method of reclaiming rubber |
Apr. 1, 1986 |
| 4544675 |
Reclaiming of vulcanized rubber |
Oct. 1, 1985 |
| 4211676 |
Process for reclaiming scrap vulcanized rubber |
Jul. 8, 1980 |
| 4161464 |
Devulcanized rubber composition and process for preparing same |
Jul. 17, 1979 |
| 4148763 |
Reclaim oil for digester process for rubber reclaiming |
Apr. 10, 1979 |
| 4118455 |
Soft rubber steering wheel, composition and method of manufacture |
Oct. 3, 1978 |
| 4101463 |
Molded composition and article molded therefrom |
Jul. 18, 1978 |
| 4077923 |
Method of manufacturing cation exchanger |
Mar. 7, 1978 |
| 4018730 |
Method for emulsifying asphalt-rubber paving material and a stable thixotropic emulsion of said material |
Apr. 19, 1977 |
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