ClassID:

90617

C07C4/22 - CPC Classification

Classification description:

Preparation of hydrocarbons from hydrocarbons containing a larger number of carbon atoms by depolymerisation to the original monomer, e.g. dicyclopentadiene to cyclopentadiene

Recent Application in this class:
#1
20260132265
2026-05-14

PROCESSES FOR CONVERTING WASTE PLASTICS AND WASTE PLASTIC CONVERSION PLANTS

#2
20260098142
2026-04-09

Mechanochemical Upcycling of Polystyrene into Aromatic Compounds

#3
20260055037
2026-02-26

STABILIZER ADDITIVES FOR PLASTIC-DERIVED SYNTHETIC FEEDSTOCK

#4
20260015302
2026-01-15

METHOD FOR PREPARING CYCLOALKENE FROM DOUBLE BOND-CONTAINING POLYMER AND METHOD FOR RECYCLING WASTE RUBBER USING THE SAME

#5
20250388815
2025-12-25

DEGRADATION OF POLYETHYLENE TO FORM GASEOUS HYDROCARBON MIXTURE

#6
20250296900
2025-09-25

DECOMPOSITION OF POLYOLEFINS

#7
20250263533
2025-08-21

METHOD FOR CONTINUOUSLY RECOVERING STYRENE MONOMER FROM WASTE POLYSTYRENE

#8
20250243134
2025-07-31

CATALYTIC HYDROGENOLYSIS OF A POLYMER

#9
20250242334
2025-07-31

DEPOLYMERIZATION CATALYST AND PROCESS

#10
20250236715
2025-07-24

LOW-TEMPERATURE PLASTIC DEPOLYMERIZATION

#11
20250215182
2025-07-03

CIRCULAR ECONOMY FOR WASTE POLYSTYRENE VIA REFINERY FCC UNIT

#12
20250145757
2025-05-08

NON AQUEOUS POLYMERIC DISPERSION OF VINYL MONOMERS PRODUCED FROM POLYSTYRENE PYROLYSIS OIL

#13
20250136780
2025-05-01

METHOD OF DECOMPOSING CROSSLINKED RUBBER

#14
20250136530
2025-05-01

METHOD OF DECOMPOSING CROSSLINKED RUBBER

#15
20250115732
2025-04-10

METHOD FOR DECOMPOSING CROSSLINKED RUBBER

#16
20250091969
2025-03-20

CYCLOPENTENE RECOVERY METHOD

#17
20250002427
2025-01-02

PROCESS FOR CONVERTING PLASTIC WASTE INTO BASE CHEMICALS

#18
20240425665
2024-12-26

PYROLYSIS OF POLYCARBONATE-CONTAINING MATERIAL IN ORDER TO RECOVER RAW MATERIALS

#19
20240352336
2024-10-24

METHOD AND PROCESS ARRANGEMENT FOR PRODUCING HYDROCARBONS

#20
20240308937
2024-09-19

Process for the depolymerization of plastic waste material

#21
20240301095
2024-09-12

THERMAL DECOMPOSITION METHOD OF USED RUBBER AND RUBBER MATERIAL FOR THERMAL DECOMPOSITION

#22
20240228734
2024-07-11

METHOD TO CONVERT WASTE PLASTICS INTO VALUE-ADDED CHEMICALS USING MICROWAVE-ASSISTED CATALYSIS

#23
20240228405
2024-07-11

DEPOLYMERIZATION CATALYST SYSTEM AND PROCESS

#24
20240182663
2024-06-06

METHOD FOR RECOVERING STYRENE MONOMERS FROM WASTE POLYSTYRENE

#25
20240140884
2024-05-02

RECYCLING OF STYRENE OLIGOMERS BY DE-POLYMERIZATION PROCESS

#26
20240140883
2024-05-02

CATALYZED DEPOLYMERIZATION OF A CHEMICALLY COMPLEX FEEDSTOCK

#27
20240132425
2024-04-25

DEPOLYMERIZATION CATALYST SYSTEM AND PROCESS

#28
20230383088
2023-11-30

METHOD FOR DEPOLYMERIZING POLYMER MASSES WHILE DEGRADING ORGANIC HALOGEN COMPOUNDS

#29
20230357653
2023-11-09

Methods for integrated separation of dienes

#30
20230348342
2023-11-02

CIRCULAR ECONOMY FOR PLASTIC WASTE TO POLYETHYLENE AND BASE OIL VIA REFINERY HYDROCRACKING UNIT

#31
20230312439
2023-10-05

CIRCULAR ECONOMY FOR PLASTIC WASTE TO POLYPROPYLENE AND BASE OIL VIA REFINERY CRUDE UNIT

#32
20230312438
2023-10-05

CIRCULAR ECONOMY FOR PLASTIC WASTE TO POLYETHYLENE AND BASE OIL VIA REFINERY CRUDE UNIT

#33
20230312437
2023-10-05

CIRCULAR ECONOMY FOR PLASTIC WASTE TO POLYPROPYLENE VIA REFINERY FCC UNIT

#34
20230312436
2023-10-05

METHOD AND PROCESS ARRANGEMENT FOR PRODUCING HYDROCARBONS AND USE

#35
20230220179
2023-07-13

Processes for Producing Cyclic Olefins from Polymers and Re-Polymerization Thereof

#36
20230113926
2023-04-13

METHOD FOR PRODUCING OLEFINS

#37
20230059241
2023-02-23

Depolymerization of oligomers and polymers comprising cyclobutane units

#38
20220411351
2022-12-29

Method for the depolymerisation of polystyrene in the presence of foreign polymers

#39
20220324777
2022-10-13

Process for the depolymerization of polystyrene

#40
20220289648
2022-09-15

Stabilizer additives for plastic-derived synthetic feedstock

#41
20220251012
2022-08-11

Method of decomposing phenolic by-product

#42
20220195140
2022-06-23

CONVERSION OF PLASTICS TO MONOMERS BY ACIDIC CATALYTIC PYROLYSIS

#43
20220106526
2022-04-07

Systems and methods for recycling waste plastics, including waste polystyrene

#44
20220089831
2022-03-24

Catalytic pyrolysis of polystyrene into aromatic rich liquid product using spherical catalyst

#45
20220081372
2022-03-17

Process for de-polymerization of styrenic monomer-containing polymers and for retrieval of styrenic monomers

#46
20220009856
2022-01-13

Processes and systems for producing one or more of benzene, toluene, or mixed xylenes

#47
20210347960
2021-11-11

Method to convert waste plastics into value-added chemicals using microwave-assisted catalysis

#48
20210277202
2021-09-09

RECYCLING METHOD FOR STYRENE-CONTAINING PLASTIC WASTE

#49
20210114870
2021-04-22

Thermal gas generator

#50
20200031738
2020-01-30

Methods for forming ethylbenzene from polystyrene

#51
20190225560
2019-07-25

Methods and systems for recovering dicyclopentadiene from pygas

#52
20190127300
2019-05-02

Manufacturing method of 1,2-dichlorohexafluorocyclopentene

#53
20190085147
2019-03-21

Process for the treatment of a composition comprising thermoplastics

#54
20190048123
2019-02-14

Method of producing five-carbon ring-containing compound and five-carbon ring derivative-containing polyurethane, and five-carbon ring derivative-containing polyurethane

#55
20170121248
2017-05-04

Process and system for making cyclopentadiene and/or dicyclopentadiene

#56
20170121244
2017-05-04

Process and system for making cyclopentadiene and/or dicyclopentadiene

#57
20170121243
2017-05-04

Process and system for making cyclopentadiene and/or dicyclopentadiene

#58
20170121242
2017-05-04

Process and system for making cyclopentadiene and/or dicyclopentadiene

#59
20160083326
2016-03-24

Cost Effective Biorefining Process in Which the Product Separation Is Very Easy

#60
20160040074
2016-02-11

Method for the degrading of synthetic polymers and device for carrying out said method

#61
20150307418
2015-10-29

METHODS AND APPARATUSES FOR PRODUCING XYLENE FROM LIGNIN

#62
20150211115
2015-07-30

MULTI-CHANNEL PYROLYSIS TUBES, MATERIAL DEPOSITION EQUIPMENT INCLUDING THE SAME AND ASSOCIATED METHODS

#63
20150210611
2015-07-30

Depolymerization of plastic materials

#64
20150175502
2015-06-25

METHOD FOR MAKING HIGH PURITY DICYCLOPENTADIENE

#65
20130317238
2013-11-28

Depolymerization processes, apparatuses and catalysts for use in connection therewith

#66
20130261356
2013-10-03

Method for producing environmentally-friendly plasticizers

#67
20120108863
2012-05-03

Depolymerizatin of plastic materials

#68
20110137094
2011-06-09

PROCESS FOR PRODUCING ETHYLIDENE NORBORNENE

#69
20110067992
2011-03-24

Apparatus for recovering styrene monomer and method of recovering styrene monomer using auxiliary solvent

#70
20080097132
2008-04-24

CRACKING OF DICYCLOPENTADIENE

#71
19348714
2026-03-31

Process for producing C2-C4 olefins

#72
18753666
2024-10-22

Pyrolysis of low-density polyethylene using a metal-doped zeolite

#73
18051718
2024-04-02

Catalyzed depolymerization of a chemically complex feedstock

#74
17471278
2022-11-15

Selective 1-hexene/1-octene production with 1-decene

#75
16913841
2021-06-22

Systems and methods for recycling waste plastics, including waste polystyrene

#76
16388706
2020-08-04

Systems and methods for recycling waste plastics, including waste polystyrene