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Class Information
Number: 521/44
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 hydroxyl group
Description: Subject matter wherein the organic chalcogen material contains the hydroxyl moiety, -OH.

Patents under this class:
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Patent Number Title Of Patent Date Issued
8304460 Methods for making composites having thermoplastic properties from recycled crosslinked polymer Nov. 6, 2012
8153699 Self-priming surfacing composition for finished surfaces Apr. 10, 2012
7981940 Method of treating sealing compound and apparatus for treating the same Jul. 19, 2011
7935736 Method for recycling polyesters or polyester mixtures from polyester-containing waste May. 3, 2011
7935737 Articles derived from compositions containing modified polybutylene terephthalate (PBT) random copolymers derived from polyethylene terephthalate (PET) May. 3, 2011
7902264 Polytrimethylene terephthalate (PTT) derived from polyethylene terephthalate (PET) and containing PET residues Mar. 8, 2011
7893120 Method for reclaiming pulverized synthetic resin product Feb. 22, 2011
7790777 Method for recovering a polymer in solution Sep. 7, 2010
7728047 Process for the recycling of expanded polystyrene Jun. 1, 2010
7619013 Reclaimed resin composition produced from pulverized waste plastic material containing solid foreign materials Nov. 17, 2009
7569617 Method and instrument of polymer processing treatment Aug. 4, 2009
7547734 Method for producing recycled resin, and resin material containing recycled resin produced by that method Jun. 16, 2009
7166658 Rubber reduction Jan. 23, 2007
6992116 Devulcanization of cured rubber Jan. 31, 2006
6815510 Elastomer reclaiming composition and method Nov. 9, 2004
6689821 Chemical method of removing paint film on plastic resin using isopropyl alcohol Feb. 10, 2004
6664304 Process for producing fine rubber powder by using waste rubber Dec. 16, 2003
6583211 Moldable composite material Jun. 24, 2003
6555588 Method for the production of a polypropylene blend Apr. 29, 2003
6548560 Process for devulcanization of cured rubbers Apr. 15, 2003
6462099 Surface devulcanization of cured rubber crumb Oct. 8, 2002
6387965 Surface devulcanization of cured rubber crumb May. 14, 2002
6380269 Surface devulcanization of cured rubber crumb Apr. 30, 2002
6346561 Pavement material Feb. 12, 2002
6310126 Mixer and process for use Oct. 30, 2001
6180753 Process for treating a compound having epithio structures for disposal Jan. 30, 2001
6114401 Plastic reclamation process Sep. 5, 2000
6110580 Recycling trim components for vehicles Aug. 29, 2000
6087406 Recycle of vulcanized fluorinated elastomers Jul. 11, 2000
5905095 Used tire process May. 18, 1999
5891926 Devulcanization of cured rubber Apr. 6, 1999
5716996 Method for the recovery of secondary polyols from paint sludges Feb. 10, 1998
5618852 Used tire process Apr. 8, 1997
5607981 Method of manufacture of paint and adhesive rubber from vulcanized rubber Mar. 4, 1997
5604277 Rubber and plastic bonding Feb. 18, 1997
5597852 Method and apparatus for reprocessing solid polyester material Jan. 28, 1997
5516809 Method for obtaining an elastomer product with high petroleum and its by-products absorption power May. 14, 1996
5514721 Thermoplastic compositions having altered reclaimed rubber therein and method for making same May. 7, 1996
5475036 Process for reusing plastic articles with coatings Dec. 12, 1995
5464877 Method for recovering a synthetic waste material contaminated with other materials Nov. 7, 1995
5420166 Glycolysis of cured unsaturated polyesters for producing a recycle reactant May. 30, 1995
5418256 Method of reclaiming scrap vulcanized rubber using supercritical fluids May. 23, 1995
5389691 Process for co-recycling tires and oils Feb. 14, 1995
5380793 Styrene soluble unsatured polyester resin from polyethylene terephthalate Jan. 10, 1995
5377844 Separation of normally hydrophobic plastic materials by froth flotation Jan. 3, 1995
5286463 Composition for recovering metals and process for using same Feb. 15, 1994
5120768 Process for separating polyethylene terephthalate from polyvinyl chloride Jun. 9, 1992
4876288 Carrier material for immobilization of microorganisms Oct. 24, 1989
4426459 Process for decomposing vulcanized rubber Jan. 17, 1984
4386182 Thermoplastic elastomeric composition containing vulcanized rubber particles and surfactant and process for preparation thereof May. 31, 1983

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