Patents-Review.com
ClassID:

99421 ⎘

C08G64/307 - CPC Classification

Classification description:

Macromolecular compounds obtained by reactions forming a carbonic ester link in the main chain of the macromolecule; General preparatory processes using carbonates and phenols

Recent Application in this class:
#1
20260085150
2026-03-26

THERMOPLASTIC RESIN AND OPTICAL LENS INCLUDING SAME

 #2
20260015458
2026-01-15

POLYCARBONATE RESIN COMPOSITION

 #3
20250368777
2025-12-04

POLYCARBONATE-POLYORGANOSILOXANE COPOLYMER

 #4
20250340697
2025-11-06

METHOD FOR THE MANUFACTURE OF POLYCARBONATE

 #5
20250313666
2025-10-09

POLYCARBONATE PRODUCTION METHOD, DIHYDROXY COMPOUND RECOVERY METHOD, AND POLYCARBONATE PRODUCTION APPARATUS

 #6
20250297062
2025-09-25

POLYCARBONATE COCONDENSATE WITH PHENOLIC BUILDING BLOCKS

 #7
20250270368
2025-08-28

AMORPHOUS COPOLYCARBONATE WITH PHENOLIC BUILDING BLOCKS

 #8
20250230275
2025-07-17

Resin and Method for Preparing Same

 #9
20250199203
2025-06-19

THERMOPLASTIC RESIN AND OPTICAL MEMBER CONTAINING SAME

 #10
20250163215
2025-05-22

Resin and Method for Preparing the Same

 #11
20250101172
2025-03-27

Polycarbonate Resin and Production Method for Same

 #12
20240409687
2024-12-12

AROMATIC POLYCARBONATE RESIN, POLYCARBONATE RESIN COMPOSITION AND MOLDED ARTICLE

 #13
20240384028
2024-11-21

Polycarbonate Resin and Preparation Method Thereof

 #14
20240376261
2024-11-14

POLYCARBONATE RESIN COMPOSITION

 #15
20240368346
2024-11-07

POLYCARBONATE COPOLYMER

 #16
20240368345
2024-11-07

AROMATIC POLYCARBONATE, AROMATIC POLYCARBONATE PRODUCTION METHOD, AND CONTAINER

 #17
20240279394
2024-08-22

POLYCARBONATE RESIN COMPOSITION

 #18
20240279392
2024-08-22

POLYCARBONATE RESIN COMPOSITION AND MOLDED ARTICLE

 #19
20240254282
2024-08-01

THERMOPLASTIC RESIN COMPOSITION, COMMUNICATION DEVICE MEMBER, AND MICROWAVE AND/OR MILLIMETER WAVE COMMUNICATION DEVICE

 #20
20240228701
2024-07-11

PROCESS FOR MAKING TRANSPARENT POLYMER-BASED MATERIALS FOR SOLAR PANELS

 #21
20240199804
2024-06-20

METHOD FOR PRODUCING THERMOPLASTIC RESIN, AND COMPOUND THEREFOR

 #22
20240132663
2024-04-25

PROCESS FOR MAKING TRANSPARENT POLYMER-BASED MATERIALS FOR SOLAR PANELS

 #23
20240117114
2024-04-11

POLYCARBONATE AND METHOD FOR PREPARING SAME

 #24
20240116839
2024-04-11

PROCESS FOR PREPARING BISPHENOL A (BPA) IN THE PRESENCE OF ACETOPHENONE

 #25
20240052093
2024-02-15

Curable resin, curable resin composition, and cured product

 #26
20240002595
2024-01-04

POLYCARBONATE COPOLYMER

 #27
20230331910
2023-10-19

METHOD FOR THE MANUFACTURE OF A MODIFIED POLYCARBONATE

 #28
20230287175
2023-09-14

PROCESS FOR THE PREPARATION OF POLYCARBONATES FROM WASTE PLASTIC FEEDSTOCKS

 #29
20230123390
2023-04-20

OLIGOMERISER WITH AN IMPROVED FEED SYSTEM

 #30
20230051676
2023-02-16

POLYCARBONATE AND METHOD FOR PRODUCING POLYCARBONATE

 #31
20230026717
2023-01-26

POLYESTER CARBONATES FROM ALIPHATIC DIACIDS AND ALIPHATIC DIOLS, AND PROCESS FOR THE PRODUCTION THEREOF

 #32
20220389159
2022-12-08

POLYCARBONATE RESIN

 #33
20220356346
2022-11-10

POLYCARBONATE RESIN, METHOD FOR PRODUCING SAME, POLYCARBONATE RESIN COMPOSITION AND MOLDED BODY

 #34
20220289907
2022-09-15

MULTIFUNCTIONAL CYCLIC ORGANIC CARBONATES AS CURING AGENTS FOR ORGANIC COMPOUNDS HAVING PHENOLIC HYDROXYL GROUPS

 #35
20220169788
2022-06-02

METHODS FOR PRODUCING POLYCARBONATE COPOLYMER AND POLYSILOXANE COMPOUND, POLYCARBONATE COPOLYMER, POLYSILOXANE COMPOUND, COMPOSITION, AND MOLDED BODY

 #36
20220145005
2022-05-12

Thermoplastic resin and optical member

 #37
20220135795
2022-05-05

Polycarbonate resin composition or copolymer, and optical film

 #38
20220098135
2022-03-31

BISPHENOL COMPOSITION AND POLYCARBONATE RESIN

 #39
20220041806
2022-02-10

Polycarbonate compositions with improved oxidation stability and methods of manufacturing the same

 #40
20220002540
2022-01-06

Aromatic polycarbonate resin composition

 #41
20210403641
2021-12-30

Bisphenol composition and polycarbonate resin

 #42
20210371650
2021-12-02

Polyester carbonate and method for producing polyester carbonate

 #43
20210347939
2021-11-11

Polycarbonate

 #44
20210347938
2021-11-11

Method for the manufacture of polycarbonate

 #45
20210340317
2021-11-04

POLYCYCLIC COMPOUNDS

 #46
20210292477
2021-09-23

Reduced color polycarbonate compositions, methods of manufacture, and articles thereof

 #47
20200339745
2020-10-29

Phthalimidine copolycarbonate optical articles, articles formed therefrom, and methods of manufacture

 #48
20200308345
2020-10-01

Self-healing copolymerized polycarbonate and preparation method therefor

 #49
20200255591
2020-08-13

A METHOD OF RECOVERING PHENOL IN A MELT POLYCARBONATE POLYMERIZATION

 #50
20200230934
2020-07-23

METHOD FOR MANUFACTURING LAMINATE AND CO-EXTRUDED SHEET

 #51
20200171452
2020-06-04

Oligomeriser with an improved feed system

 #52
20200164565
2020-05-28

Use of polycarbonate for the manufacture of hollow containers

 #53
20200123315
2020-04-23

Ortho alkoxy bisphenol monomers

 #54
20200115494
2020-04-16

Aromatic polycarbonate resin, method for producing same, and aromatic dihydroxy compound

 #55
20200071460
2020-03-05

Aromatic polycarbonate oligomer solid

 #56
20200024232
2020-01-23

METHODS OF PURIFICATION OF 2-ARYL-3,3-BIS(4-HYDROXYARYL)PHTHALIMIDINES, AND POLYMERS DERIVED THEREFROM

 #57
20190367669
2019-12-05

Process for preparing polycarbonates using a catalyst system having a quarternary nitrogen compond and a quarternary phosphorous compound

 #58
20190308937
2019-10-10

Continuous methods of manufacture of 2-aryl-3,3-BIS(4-hydroxyaryl)phthalimidines, and polymers derived therefrom

 #59
20190276596
2019-09-12

Optical use polycarbonate resin composition method for producing same, and spectacle lens and camera lens containing same

 #60
20190235258
2019-08-01

Method of producing thermoplastic resin

 #61
20190233585
2019-08-01

Dihydroxy compound

 #62
20190209946
2019-07-11

Method for producing a polycarbonate using a stripping device

 #63
20190161576
2019-05-30

POLYCARBONATE COMPOSITIONS CONTAINING A CARBOXYLIC ACID AND THEIR GLYCEROL OR DIGLYCEROL ESTERS

 #64
20190119442
2019-04-25

Polycarbonate copolymer, optical lens and film in which said polycarbonate copolymer is used, and method for producing said copolymer

 #65
20190047954
2019-02-14

Bisphenol compound and aromatic polycarbonate

 #66
20190010281
2019-01-10

METHOD FOR PRODUCING POLYCARBONATE OLIGOMERS

 #67
20180371164
2018-12-27

Method for producing polycarbonate

 #68
20180371163
2018-12-27

METHOD FOR PRODUCING OLIGOMERS FOR PRODUCING POLYCARBONATES

 #69
20180371162
2018-12-27

Method for preparing a melt polycarbonate

 #70
20180321423
2018-11-08

Thermoplastic resin composition and molded article thereof

 #71
20180319932
2018-11-08

Method of forming and using a bisphenol oil stream

 #72
20180312689
2018-11-01

Method for producing resin composition

 #73
20180307052
2018-10-25

Method of producing thermoplastic resin

 #74
20180306948
2018-10-25

Resin composition, and optical lens, sheet and film which contain same

 #75
20180305496
2018-10-25

Method for producing thermoplastic resin

 #76
20180208746
2018-07-26

Control of organic impurities in polycarbonate synthesis

 #77
20180162994
2018-06-14

Polycarbonate copolymer and preparation method therefor

 #78
20180127541
2018-05-10

Polycarbonate resin and preparation method therefor

 #79
20170369642
2017-12-28

Preparation of highly heat-resistant (co)polycarbonates by the transesterification method

 #80
20170369415
2017-12-28

Use of composition comprising titanium or zirconium alkoxide or aryloxide in aromatic carbonate preparation process

 #81
20170342209
2017-11-30

Composition comprising titanium or zirconium alkoxide or aryloxide and use thereof

 #82
20170321014
2017-11-09

Polycarbonate-based resin composition and molded article thereof

 #83
20170320049
2017-11-09

PROCESS FOR PREPARING AN AROMATIC CARBONATE PRODUCTION CATALYST

 #84
20170313815
2017-11-02

Method of polymerizing end-capped polycarbonate and end-capped polycarbonates derived therefrom

 #85
20170306090
2017-10-26

METHOD FOR MAKING POLYCARBONATE USING A LIQUID KETONE MIXTURE

 #86
20170298222
2017-10-19

Polycarbonate-based resin composition and molded article thereof

 #87
20170292019
2017-10-12

Flame resistant polycarbate based resin composition and molded articles thereof

 #88
20170275456
2017-09-28

Copolycarbonate resin composition and article including the same

 #89
20170233328
2017-08-17

Method of melt polymerizing polycarbonate and the polycarbonate made therefrom

 #90
20170190871
2017-07-06

Polycarbonate composition to produce optical quality products with high quality and good processability

 #91
20170190833
2017-07-06

Copolycarbonate and composition comprising the same

 #92
20170158852
2017-06-08

Copolycarbonate composition and article containing the same

 #93
20170137568
2017-05-18

Copolycarbonate and composition comprising the same

 #94
20170129997
2017-05-11

Melt reaction process for crosslinkable polycarbonates

 #95
20170015784
2017-01-19

A SYSTEM AND PROCESS FOR PRODUCING VARIOUS MOLECULAR WEIGHT MELT POLYCARBONATES

 #96
20160376405
2016-12-29

Copolycarbonate and composition containing the same

 #97
20160369095
2016-12-22

Polycarbonate resin composition

 #98
20160369049
2016-12-22

Plastic composition comprising a polycarbonate made from low sulfur bisphenol A, and articles made therefrom

 #99
20160369048
2016-12-22

Copolycarbonate and composition containing the same

 #100
20160369047
2016-12-22

Copolycarbonate and composition comprising the same

 #101
20160347905
2016-12-01

Production method for carbonate compound and methacrylate or ester thereof

 #102
20160326321
2016-11-10

Polycarbonate composition and article comprising the same

 #103
20160326314
2016-11-10

Copolycarbonate and composition containing the same

 #104
20160326313
2016-11-10

Copolycarbonate and composition containing the same

 #105
20160326312
2016-11-10

Copolycarbonate resin composition

 #106
20160319069
2016-11-03

POLYCARBONATE AND OPTICAL MEMBER COMPRISING THE SAME

 #107
20160297926
2016-10-13

Copolycarbonate and composition comprising the same

 #108
20160297925
2016-10-13

Copolycarbonate and composition comprising the same

 #109
20160272757
2016-09-22

Process for producing a high molecular-weight aromatic polycarbonate resin

 #110
20160251481
2016-09-01

Copolycarbonate and composition comprising the same

 #111
20160145187
2016-05-26

Polyorganosiloxane compound, method for preparing the same, and copolycarbonate resin comprising the same

 #112
20160039971
2016-02-11

Melt polymerization reactor system and method

 #113
20160032046
2016-02-04

Polycarbonate manufacturing method and polycarbonate

 #114
20150344623
2015-12-03

Copolycarbonate resin and article including the same

 #115
20150291763
2015-10-15

Manufacture of dihydroxy aromatic compounds by alcoholysis of flame retardant-containing polycarbonate compositions

 #116
20150285954
2015-10-08

Polycarbonate resin, production method therefor, and optical molded body

 #117
20150284509
2015-10-08

Aromatic polycarbonate resin composition

 #118
20150274887
2015-10-01

Process for producing highly polymerized aromatic polycarbonate resin

 #119
20150267006
2015-09-24

Process for preparing highly polymerized aromatic polycarbonate resin

 #120
20150259473
2015-09-17

Method and plant for producing polycarbonate

 #121
20150185404
2015-07-02

Light guide plate and method for fabricating the same

 #122
20150152037
2015-06-04

Method for producing carbonate compound and method for producing aromatic polycarbonate

 #123
20150133611
2015-05-14

Method for continuous production of high molecular weight polycarbonate resin

 #124
20150094444
2015-04-02

Polycarbonate, production method for same and optical film comprising same

 #125
20150093531
2015-04-02

Container for precision member and method for preparing the same

 #126
20140378643
2014-12-25

Process for the manufacture of polycarbonate compositions

 #127
20140378591
2014-12-25

Polycarbonate composition to produce optical quality products with high quality and good processability

 #128
20140371404
2014-12-18

METHOD FOR CONTINUOUS PRODUCTION OF HIGH-MOLECULAR-WEIGHT POLYCARBONATE RESIN

 #129
20140275466
2014-09-18

Production of a polycarbonate with limited metal residuals

 #130
20140228526
2014-08-14

Late-addition catalyst formulation, reactor system, and method for producing polycarbonate

 #131
20140206833
2014-07-24

Continuous process for the production of melt polycarbonate

 #132
20140187738
2014-07-03

Copolymerized polycarbonate resin, method for preparing the same, and article comprising the same

 #133
20140186602
2014-07-03

Polycarbonate resin for film, method for preparing the same and film including the same

 #134
20140179892
2014-06-26

Method for alcoholysis of polycarbonate compositions containing flame retardant or acrylonitrile-butadiene-styrene

 #135
20140128526
2014-05-08

Process for producing polycarbonate compositions

 #136
20130165621
2013-06-27

Method for preparing polycondensation resin

 #137
20130053487
2013-02-28

Polycarbonate compositions and methods for the manufacture and use thereof

 #138
20120296064
2012-11-22

METHODS AND SYSTEMS FOR THE CONTINUOUS ADDITION OF BRANCHING AGENTS INTO MELT POLYCARBONATE POLYMERIZATION PROCESSES

 #139
20120296063
2012-11-22

Process for preparing diaryl oxalate

 #140
20120226011
2012-09-06

METHOD FOR PRODUCING POLYCARBONATE

 #141
20120172573
2012-07-05

Aromatic carbonate, method of preparing the same, and polycarbonate prepared using the same

 #142
20120157639
2012-06-21

Method for making polycarbonate

 #143
20120149839
2012-06-14

Polycarbonate nanocomposites

 #144
20120101247
2012-04-26

Process for preparing diaryl carbonates from dialkyl carbonates

 #145
20120068115
2012-03-22

High molecular weight, random, bisphenol based copoly(phosphonate carbonate)s

 #146
20120065355
2012-03-15

Polymerization of high viscosity materials

 #147
20110278174
2011-11-17

Process for preparing diaryl carbonates and polycarbonates

 #148
20110251309
2011-10-13

Branched melt polycarbonate with low content of defective structures

 #149
20110245527
2011-10-06

Process for preparing diaryl carbonates and polycarbonates

 #150
20110245451
2011-10-06

Method for preparing fine spherical polycarbonate powders and method for preparing high molecular weight polycarbonate resin using same

 #151
20110184144
2011-07-28

Process and apparatus for the preparation of polycarbonate

 #152
20110040066
2011-02-17

Polycarbonates having rearrangement structures, cyclic and linear oligomers and also flow behavior

 #153
20110009592
2011-01-13

Process for the preparation of polycarbonate

 #154
20110003945
2011-01-06

Polycarbonates comprising cyclic oligomers and having an improved flow behavior

 #155
20100280176
2010-11-04

Polycarbonate composition comprising nanomaterials

 #156
20100273973
2010-10-28

Continuous production method and production apparatus of aromatic polycarbonate

 #157
20100160594
2010-06-24

Polycarbonates, compositions made therefrom, methods of manufacture thereof, and articles therefrom

 #158
20100137549
2010-06-03

Production apparatus of polycarbonate resin and production method of polycarbonate resin

 #159
20100036087
2010-02-11

Production method of polycarbonate resin

 #160
20090287014
2009-11-19

Process for production of high-purity diaryl carbonate

 #161
20090287012
2009-11-19

Process for production of high-purity diaryl carbonate

 #162
20090286952
2009-11-19

Method of forming polycarbonate

 #163
20090247726
2009-10-01

Monomer solution for producing polycarbonate

 #164
20090209724
2009-08-20

Process for industrially producing high-quality aromatic polycarbonate

 #165
20090163734
2009-06-25

Process for producing high-purity diphenyl carbonate on industrial scale

 #166
20090156759
2009-06-18

Industrial process for production of high-quality aromatic polycarbonate

 #167
20090143610
2009-06-04

Method of preparing a purified ester-substituted phenol stream

 #168
20090117314
2009-05-07

PROCESS FOR THE PREPARATION OF POLYCARBONATE BY THE MELT TRANSESTERIFICATION METHOD

 #169
20090088549
2009-04-02

Monomer solution for producing polycarbonate

 #170
20090043071
2009-02-12

Sulfonated telechelic polycarbonates

 #171
20090043069
2009-02-12

ACTIVATED ESTERS FOR SYNTHESIS OF SULFONATED TELECHELIC POLYCARBONATES

 #172
20090023884
2009-01-22

METHOD FOR STORAGE AND/OR TRANSPORT OF BISPHENOLACETONE AND METHOD FOR PRODUCING AROMATIC POLYCARBONATE

 #173
20080319156
2008-12-25

Process for the preparation of polycarbonate by the melt transesterification process

 #174
20080287640
2008-11-20

PROCESS FOR THE PRODUCTION OF POLYCARBONATE USING AN ESTER SUBSTITUTED DIARYL CARBONATE

 #175
20080255324
2008-10-16

Method for stably producing an aromatic polycarbonate

 #176
20080234445
2008-09-25

Production method of aromatic polycarbonate

 #177
20080234444
2008-09-25

Method for efficiently producing an aromatic polycarbonate

 #178
20080177099
2008-07-24

Process for producing aromatic carbonate

 #179
20080167414
2008-07-10

POLYCARBONATE COMPOSITION COMPRISING NANOMATERIALS

 #180
20080076902
2008-03-27

Process for production of copolycarbonates with reduced color

 #181
20080004426
2008-01-03

Branched polycarbonate resins and processes to prepare the same

 #182
20080004418
2008-01-03

Method of preparing polycarbonate

 #183
20080004417
2008-01-03

Polycarbonates and method of preparing same

 #184
20080004407
2008-01-03

Method for making molded polycarbonate articles with improved color

 #185
20070299241
2007-12-27

Manufacture of polycarbonates

 #186
20070287797
2007-12-13

Method of stabilization of dihydric phenols

 #187
20070287796
2007-12-13

METHOD OF STABILIZATION OF DIHYDRIC PHENOLS

 #188
20070282091
2007-12-06

Method of preparing ester-substituted diaryl carbonates

 #189
20070270604
2007-11-22

Process for production of high-purity diaryl carbonate

 #190
20070260084
2007-11-08

Industrial Process for Production of High-Purity Diaryl Carbonate

 #191
20070208159
2007-09-06

POLY(ARYLENE ETHER) BLOCK COPOLYMER COMPOSITIONS, METHODS, AND ARTICLES

 #192
20070197764
2007-08-23

Method for producing a high quality aromatic polycarbonate

 #193
20070197763
2007-08-23

Method for producing an aromatic polycarbonate

 #194
20070148055
2007-06-28

Polymerizer device for producing an aromatic polycarbonate

 #195
20070142618
2007-06-21

Polycarbonates containing low levels of methyl salicylate prepared by a melt polymerization in a reactive extruder

 #196
20070117957
2007-05-24

Ionizing radiation stable thermoplastic composition, method of making, and articles formed therefrom

 #197
20070100119
2007-05-03

Methods for preparing transparent articles from biphenol polycarbonate copolymers

 #198
20070100118
2007-05-03

Methods for preparing transparent articles from hydroquinone polycarbonate copolymers

 #199
20070057400
2007-03-15

Polycarbonate useful in making solvent cast films

 #200
20070049723
2007-03-01

Method of producing polycarbonate articles by rotation molding and rotation molded articles made by the method

 #201
20060167211
2006-07-27

Preparation method of high molecular weight polycarbonate resin

 #202
20060135662
2006-06-22

Polycarbonates with fluoroalkylene carbonate end groups

 #203
20060127675
2006-06-15

Polycarbonate-based resin composition for extrusion molding using sizing die and molded product

 #204
20060122359
2006-06-08

Method for preparing polycarbonate resin

 #205
20060100413
2006-05-11

Method of producing modified polycarbonate using spray-crystallizing method

 #206
20060094856
2006-05-04

Method for making polycarbonate

 #207
20060094854
2006-05-04

Method for making polycarbonate

 #208
20060089484
2006-04-27

Method of preparing polycarbonate resin

 #209
20060069228
2006-03-30

Process to make polycarbonate from bismethylsalicylcarbonate (BMSC)

 #210
20060020047
2006-01-26

Processes for the production of cumene, polyetherimides, and polycarbonates

 #211
20060004178
2006-01-05

Inhibition of catalytically active impurities in polycarbonate by the melt transesterification process

 #212
20050261460
2005-11-24

Method of polycarbonate preparation

 #213
20050239995
2005-10-27

Process for the preparation of polycarbonate

 #214
20050234211
2005-10-20

Method for preparing a polycarbonate oligomer mixture at low temperature for manufacturing polycarbonate

 #215
20050222371
2005-10-06

Method and device for producing polyesters, copolyesters and polycarbonates

 #216
20050215758
2005-09-29

Method for preparing high molecular weight polycarbonate

 #217
20050209434
2005-09-22

Polycarbonate composition and method of making thereof

 #218
20050192424
2005-09-01

Liquid crystal polycarbonates and methods of preparing same

 #219
20050176918
2005-08-11

Production of bisphenol a with reduced isomer formation

 #220
20050171323
2005-08-04

Process for the production of copolycarbonates with reduced color

 #221
20050171322
2005-08-04

Process for the production of copolycarbonates with reduced color

 #222
20050131197
2005-06-16

Transesterification process for the production of polycarbonates having a low content of volatile compounds

 #223
20050090638
2005-04-28

Method for producing polycarbonate

 #224
14692362
2016-12-13

Renewable bisphenols and resins from salicylic acid