Patents-Review.com
ClassID:

99409 ⎘

C08G64/205 - CPC Classification

Classification description:

Macromolecular compounds obtained by reactions forming a carbonic ester link in the main chain of the macromolecule; General preparatory processes characterised by the apparatus used

Recent Application in this class:
#1
20240368345
2024-11-07

AROMATIC POLYCARBONATE, AROMATIC POLYCARBONATE PRODUCTION METHOD, AND CONTAINER

 #2
20240352189
2024-10-24

Method for Preparing a Polysiloxane-Polycarbonate Block Copolymer Using at Least One Special Condensation Reactor

 #3
20240352188
2024-10-24

Method for Preparing a Polysiloxane-Polycarbonate Block Copolymer

 #4
20240254281
2024-08-01

REACTOR AND METHOD FOR THE MANUFACTURE OF POLYCARBONATE

 #5
20240209146
2024-06-27

PROCESS FOR PRODUCING POLYCARBONATE WITH IMPROVED SUSTAINABILITY

 #6
20240165577
2024-05-23

METHOD FOR ASSEMBLING POLYCARBONATE MANUFACTURING APPARATUS AND POLYCARBONATE MANUFACTURING APPARATUS

 #7
20240002594
2024-01-04

RING-OPENING POLYMERIZATIONS USING A FLOW REACTOR

 #8
20220220252
2022-07-14

Continuous manufacturing of polyol

 #9
20210371585
2021-12-02

Method for producing polycarbonate

 #10
20210371583
2021-12-02

Ring-opening polymerizations using a flow reactor

 #11
20210347940
2021-11-11

POLYCARBONATE BASED POLYOLS

 #12
20210347939
2021-11-11

Polycarbonate

 #13
20210277181
2021-09-09

PROCESS FOR SEPARATING GASEOUS CONSTITUENTS

 #14
20200407496
2020-12-31

Ring-opening polymerizations using a flow reactor

 #15
20200148819
2020-05-14

Oligomeriser with improved mixing performance

 #16
20200010610
2020-01-09

Ring-opening polymerizations using a flow reactor

 #17
20190309126
2019-10-10

Semi-batch process for making polycarbonate polyols via copolymerization of carbon dioxide and an oxirane

 #18
20190256652
2019-08-22

Polycarbonate based polyols

 #19
20190209946
2019-07-11

Method for producing a polycarbonate using a stripping device

 #20
20180362706
2018-12-20

Process for preparing poly(ester-carbonate)s and poly(ester-carbonate)s prepared thereby

 #21
20180319932
2018-11-08

Method of forming and using a bisphenol oil stream

 #22
20180105644
2018-04-19

Ultra-high purity polycarbonates having good inherent color and thermal resistance and a device and a method for producing the same

 #23
20180037697
2018-02-08

Process for preparing polycarbonates by transesterifying dithiocarbonates or selenium analogues thereof with bisphenols

 #24
20170198092
2017-07-13

Method for the production of polyether carbonate polyols and device therefor

 #25
20170015784
2017-01-19

A SYSTEM AND PROCESS FOR PRODUCING VARIOUS MOLECULAR WEIGHT MELT POLYCARBONATES

 #26
20160272757
2016-09-22

Process for producing a high molecular-weight aromatic polycarbonate resin

 #27
20160144337
2016-05-26

Continuous solid-state polymerisation device and method

 #28
20160136611
2016-05-19

Continuous solid-state polymerization device and method

 #29
20150267003
2015-09-24

Method for continuous production of polycarbonate-polyorganosiloxane copolymer

 #30
20150259473
2015-09-17

Method and plant for producing polycarbonate

 #31
20140275449
2014-09-18

Interfacial processes for preparing photoactive additives

 #32
20140121348
2014-05-01

Polycarbonate resins and processes for producing the same

 #33
20130211042
2013-08-15

Process for the production of polyether carbonate polyols

 #34
20130211035
2013-08-15

Process for producing polycondensation polymer, and polymerizer

 #35
20130190462
2013-07-25

Process for preparing polyether carbonate polyols with double metal cyanide catalysts and in the presence of metal salts

 #36
20120232243
2012-09-13

Polycarbonate resins and processes for producing the same

 #37
20120157653
2012-06-21

Ultra-high purity polycarbonates having good inherent color and thermal resistance and a device and a method for producing the same

 #38
20120065355
2012-03-15

Polymerization of high viscosity materials

 #39
20110184144
2011-07-28

Process and apparatus for the preparation of polycarbonate

 #40
20110034630
2011-02-10

Late addition to effect compositional modifications in condensation polymers

 #41
20100273973
2010-10-28

Continuous production method and production apparatus of aromatic polycarbonate

 #42
20100137549
2010-06-03

Production apparatus of polycarbonate resin and production method of polycarbonate resin

 #43
20100036087
2010-02-11

Production method of polycarbonate resin

 #44
20090286952
2009-11-19

Method of forming polycarbonate

 #45
20090173618
2009-07-09

Method of an apparatus for generating a vacuum and for separating volatile compounds in polycondensation reactions

 #46
20090088538
2009-04-02

Method of producing polycarbonate in a flash devolatilization system

 #47
20080289773
2008-11-27

Industrial evaporation apparatus

 #48
20080255324
2008-10-16

Method for stably producing an aromatic polycarbonate

 #49
20080242828
2008-10-02

Process for producing polycarbonate

 #50
20080234444
2008-09-25

Method for efficiently producing an aromatic polycarbonate

 #51
20080196840
2008-08-21

Industrial Continuous Evaporation Apparatus

 #52
20080110578
2008-05-15

Industrial Evaporation Apparatus

 #53
20080051529
2008-02-28

Method and Device for the Gradual Production of Polymers Using Melt Condensation

 #54
20070283904
2007-12-13

Industrial Evaporation Apparatus

 #55
20070282091
2007-12-06

Method of preparing ester-substituted diaryl carbonates

 #56
20070197763
2007-08-23

Method for producing an aromatic polycarbonate

 #57
20070148055
2007-06-28

Polymerizer device for producing an aromatic polycarbonate

 #58
20070142618
2007-06-21

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

 #59
20070142612
2007-06-21

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

 #60
20070066792
2007-03-22

Late addition to effect compositional modifications in condensation polymers

 #61
20060247412
2006-11-02

Method of producing vacuum in the production of polymers

 #62
20060100413
2006-05-11

Method of producing modified polycarbonate using spray-crystallizing method

 #63
20060089484
2006-04-27

Method of preparing polycarbonate resin

 #64
20050239996
2005-10-27

Process for the production of polycarbonate

 #65
20050239995
2005-10-27

Process for the preparation of polycarbonate

 #66
20050234211
2005-10-20

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

 #67
20050222371
2005-10-06

Method and device for producing polyesters, copolyesters and polycarbonates