Inventor
BRACK HANS PETER
CH39 patents
⚠️ This page may combine multiple inventors who share the name “BRACK HANS PETER”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
GEN ELECTRIC
15 patentsUS6437083B1Aug 20, 2002
Process for preparing branched aromatic polycarbonates
GEN ELECTRIC246 citations98
US6504002B1Jan 7, 2003
Process for the production of branched melt polycarbonate by late addition of fries-inducing catalyst
GEN ELECTRIC148 citations97
US6747119B2Jun 8, 2004
Method and system for preparing a polycarbonate, copolymerization reagent and polycarbonate
GEN ELECTRIC53 citations96
US6710156B2Mar 23, 2004
Method for end-capping polycarbonate resins and composition for use in same
GEN ELECTRIC47 citations96
US6706846B2Mar 16, 2004
Method for end-capping polycarbonate resins and composition for use in same
GEN ELECTRIC63 citations96
US6500914B1Dec 31, 2002
Method for end-capping polycarbonate resins and composition for use in same
GEN ELECTRIC59 citations96
US6525163B1Feb 25, 2003
Process for the production of polycarbonate
GEN ELECTRIC53 citations94
US6486294B1Nov 26, 2002
Production of poly(carbonate-co-ester) copolymers
GEN ELECTRIC34 citations93
US6653434B2Nov 25, 2003
Process for the production of polycarbonate
GEN ELECTRIC48 citations92
US6590068B2Jul 8, 2003
Reduction of reaction by-products in polycarbonate resins
GEN ELECTRIC45 citations92
US6734277B2May 11, 2004
Method of enhancing pit replication in optical disks
GEN ELECTRIC47 citations91
US6620902B2Sep 16, 2003
Process for preparing polycarbonate and apparatus for preparing polycarbonate
GEN ELECTRIC8 citations72
US7235611B2Jun 26, 2007
Triazine compounds, polymers comprising triazine structural units, and method
GEN ELECTRIC4 citations63
US7259223B2Aug 21, 2007
Process for the production of polycarbonate
GEN ELECTRIC2 citations62
US7105626B2Sep 12, 2006
Method for incorporating alkyl ester endgroups to improve the release properties of melt polycarbonate
GEN ELECTRIC0 citations42
SABIC INNOVATIVE PLASTICS IP
14 patentsUS7645851B2Jan 12, 2010
Polycarbonate with reduced color
SABIC INNOVATIVE PLASTICS IP9 citations82
US7619053B2Nov 17, 2009
Monomer solution for producing polycarbonate
SABIC INNOVATIVE PLASTICS IP11 citations81
US7671164B2Mar 2, 2010
Aliphatic polycarbonates, methods of making, and articles formed therefrom
SABIC INNOVATIVE PLASTICS IP9 citations80
US7547799B1Jun 16, 2009
Method for producing phenolic compound
SABIC INNOVATIVE PLASTICS IP12 citations79
US7671165B2Mar 2, 2010
Method of forming polycarbonate
SABIC INNOVATIVE PLASTICS IP12 citations77
US7759456B2Jul 20, 2010
Branched polycarbonate resins and processes to prepare the same
SABIC INNOVATIVE PLASTICS IP6 citations61
US7834125B2Nov 16, 2010
Polycarbonates, compositions made therefrom, methods of manufacture thereof, and articles therefrom
SABIC INNOVATIVE PLASTICS IP4 citations60
US7541420B2Jun 2, 2009
Method for making molded polycarbonate articles with improved color
SABIC INNOVATIVE PLASTICS IP4 citations60
US7977447B2Jul 12, 2011
Method for making carbonates and esters
SABIC INNOVATIVE PLASTICS IP0 citations50
US7674872B2Mar 9, 2010
Method of producing high molecular weight polymer
SABIC INNOVATIVE PLASTICS IP1 citations50
US7858728B2Dec 28, 2010
Polycarbonate resins method of manufacture, and articles formed therefrom
SABIC INNOVATIVE PLASTICS IP1 citations48
US7863404B2Jan 4, 2011
Method of making isosorbide polycarbonate
SABIC INNOVATIVE PLASTICS IP1 citations45
US7615605B2Nov 10, 2009
Monomer solution for producing polycarbonate
SABIC INNOVATIVE PLASTICS IP0 citations39
US7601794B2Oct 13, 2009
Monomer solution for producing polycarbonate
SABIC INNOVATIVE PLASTICS IP0 citations37
SULZER CHEMTECH AG
3 patentsUS9956500B2May 1, 2018
Liquid mixing collector and a method for its use
SULZER CHEMTECH AG3 citations67
US10066054B2Sep 4, 2018
Continuous method for manufacturing a polyester from cyclic ester monomer
SULZER CHEMTECH AG0 citations45
US10059799B2Aug 28, 2018
Method for stabilizing a condensed phase composition including a cyclic ester in a process of manufacturing a polyester or of lactide
SULZER CHEMTECH AG1 citations45