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Class Information
Number: 521/40.5
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
Description: Subject matter wherein the scrap or waste product contains at least one polymer which is derived from only ethylenic unsaturated monomers.










Sub-classes under this class:

Class Number Class Name Patents
521/46 Treating polymer derived from a monomer containing only carbon, hydrogen, and halogen or only carbon and halogen; or treating a polymer which has been derived from at least one hydrocarbon and which has been subsequently halogenated 73
521/47 Treating polymer derived from hydrocarbon monomers only 133
521/41 Treating rubber (or rubberlike materials) or polymer derived from a monomer having at least two ethylenic unsaturated moieties 223


Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
8703833 Solid surface sheets containing post-consumer recycled materials and methods of making same Apr. 22, 2014
8680165 Thermoset composite material and structural component and method of making the same from engineered recycled rubber powder Mar. 25, 2014
8669297 Textile backing formed from recycled materials Mar. 11, 2014
8664284 Depolymerization of polymers Mar. 4, 2014
8653150 Method for decomposing thermoset resin and recovering decomposition product Feb. 18, 2014
8653151 Articles prepared using recycled materials and methods of preparation thereof Feb. 18, 2014
8614259 Process of recycling powder coat material and component made thereof Dec. 24, 2013
8580388 Composition suitable for stretch hood, method of producing the same, and articles made therefrom Nov. 12, 2013
8580124 Switchable hydrophilicity solvents and methods of use thereof Nov. 12, 2013
8580917 Method of purifying block copolymers Nov. 12, 2013
8557881 Wood composite material and method for making same Oct. 15, 2013
8546455 Expanded polystyrene solubilization method Oct. 1, 2013
8536238 Process for preparing insulation sheets from unseparated mixtures of post-consumer plastic articles Sep. 17, 2013
8530531 Method for the recycling of polyvinyl butyral Sep. 10, 2013
8487049 Recycling superabsorbent polymer fines Jul. 16, 2013
8470897 Devulcanization of rubber and other elastomers Jun. 25, 2013
8466205 Methods and systems for recycling carpet and carpets manufactured from recycled material Jun. 18, 2013
8455558 Carpet waste composite Jun. 4, 2013
8450382 Compositions of material containing recycled plastics May. 28, 2013
8445552 Solid surface sheets containing post-consumer recycled materials and methods of making same May. 21, 2013
8404754 Recycling Mar. 26, 2013
8394866 Method and device for the decontamination of plastic flakes Mar. 12, 2013
8383764 Method of purifying block copolymers Feb. 26, 2013
8349285 Method of reclaiming carbonaceous materials from scrap tires and products derived therefrom Jan. 8, 2013
8334325 Rubber de-vulcanisation Dec. 18, 2012
8334326 Neutralization by filler Dec. 18, 2012
8318895 Recycling superabsorbent polymer fines Nov. 27, 2012
8314206 Block copolymer-comprising compositions and methods of purifying PS-b-PXVP Nov. 20, 2012
8309618 Catalytic depolymerization of polymers containing electrophilic linkages using nucleophilic reagents Nov. 13, 2012
8309682 Recycling superabsorbent polymer fines Nov. 13, 2012
8304460 Methods for making composites having thermoplastic properties from recycled crosslinked polymer Nov. 6, 2012
8304462 Process for making polymer composites having thermoplastic properties Nov. 6, 2012
8304458 Method and chemical composition for reclaiming of cured elastomer materials Nov. 6, 2012
8304464 Polyester with caustic material mixing methods and mixing reactors Nov. 6, 2012
8304459 Rubber de-vulcanisation using rapid decompression of supercritical fluid Nov. 6, 2012
8299135 Vapor phase assisted post-consumer polymer processing apparatus and method Oct. 30, 2012
8278365 Carpet waste composite Oct. 2, 2012
8273800 Self-priming surfacing composition for finished surfaces Sep. 25, 2012
8202918 Method and system for processing waste materials Jun. 19, 2012
8188155 Rubber de-vulcanisation May. 29, 2012
8188154 Decomposition reaction apparatus, system for producing raw material for recycled resin composition, method for producing raw material for recycled resin composition, raw material for recycled May. 29, 2012
8183337 Method of purifying ethylene vinyl alcohol copolymers for use with implantable medical devices May. 22, 2012
8168688 Process of recycling paint sludge and component made thereof May. 1, 2012
8153699 Self-priming surfacing composition for finished surfaces Apr. 10, 2012
8138232 Method for recycling plastic materials and use thereof Mar. 20, 2012
8138233 Process for making polybutylene terephthalate (PBT) from polyethylene terephthalate (PET) Mar. 20, 2012
8106103 Method for processing and analyzing contaminated mixed waste plastics to produce reformulated, blended feed materials having a desired color Jan. 31, 2012
8106104 Method for processing and analyzing contaminated mixed waste plastics to produce reformulated, blended feed materials having a desired plastic content Jan. 31, 2012
8088834 Process for making polybutylene terephthalate (PBT) from polyethylene terephthalate (PET) Jan. 3, 2012
8044107 Method of producing an embedded recycled container sheet Oct. 25, 2011

1 2 3 4 5










 
 
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