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Class Information
Number: 526/66
Name: Synthetic resins or natural rubbers -- part of the class 520 series > Synthetic resins (class 520, subclass 1) > Polymerizing in two or more physically distinct zones > Adding material to polymerization zone in an incremental or sequential manner
Description: Subject matter wherein material (e.g., monomer, catalyst, etc.) is added to a zone containing polymerizable material therein, said polymerizable material being in a state undergoing active polymerization and wherein said material is added in a sequential or incremental manner.

Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
8686095 Process for continuous production of epoxy resins Apr. 1, 2014
8633285 Method for producing water-absorbing polymer particles Jan. 21, 2014
8609792 Bimodal polyethylene for blow-moulding applications Dec. 17, 2013
8586701 Process for the preparation of copolyesters based on 2,2,4,4-tetramethyl-1,3-cyclobutanediol and 1,4-cyclohexanedimethanol Nov. 19, 2013
8466240 Methods of improving crosslinkability of polyethylene polymer comprising polar comonomer and polymer compositions Jun. 18, 2013
8455596 Method for producing a copolymer for photoresist Jun. 4, 2013
8431658 Process for feeding a catalyst in a polymerization reactor Apr. 30, 2013
8431096 Process for high temperature solution polymerization Apr. 30, 2013
8389654 High melt flow polymer of improved durability for pipe applications Mar. 5, 2013
8383739 Systems and methods for monitoring a polymerization reaction Feb. 26, 2013
8378033 Process for production of water-absorbable resin particle, and water-absorbable resin particle produced by the process Feb. 19, 2013
8367783 Process for improving the polymerization of ethylene and one or more optional comonomer(s) in a polymerization loop reactor Feb. 5, 2013
8202485 Particulate flow control process Jun. 19, 2012
8058366 Polymerization monitoring and method of selecting leading indicators Nov. 15, 2011
7973104 Rubbery core/shell polymer with improved heat and UV resistance Jul. 5, 2011
7919568 Process for high temperature solution polymerization Apr. 5, 2011
7915354 Multimodal ethylene-alpha-olefin elastomers and process for making Mar. 29, 2011
7838605 Polymerization monitoring and control using improved leading indicators Nov. 23, 2010
7799880 Process for the polymerization of olefins Sep. 21, 2010
7728086 Process for the polymerization of olefins Jun. 1, 2010
7615596 Multiple component feed methods and systems Nov. 10, 2009
7585923 Polymerization monitoring and method of selecting leading indicators Sep. 8, 2009
7504141 Shrink film Mar. 17, 2009
7265190 Process and apparatus for production of water-absorbent resin Sep. 4, 2007
7211634 Process for the preparation of polyesters containing 1,4-cyclohexanedimethanol May. 1, 2007
7204962 Production apparatus for polybutylene terephthalate Apr. 17, 2007
7135544 Living olefin polymerization processes Nov. 14, 2006
7132484 Continuous process for producing poly (trimethylene terephthalate) Nov. 7, 2006
7034091 Combinatorial synthesis and screening of non-biological polymers Apr. 25, 2006
6998463 Polyester resin and process for its production Feb. 14, 2006
6995232 Synthesis of polyol medium fatty acid polyesters Feb. 7, 2006
6995216 Process for manufacturing single-site polyolefins Feb. 7, 2006
6982236 Process to polymerize olefins Jan. 3, 2006
6979752 Continuous process for converting polytetramethylene ether diester to polytetramethylene ether glycol Dec. 27, 2005
6969746 Process for the preparation of ethylene copolymers, and their use as additives to mineral oil and mineral oil distillates Nov. 29, 2005
6914104 Process for polymerization of .alpha.-olefin Jul. 5, 2005
6887953 Esterification process May. 3, 2005
6875826 High melt strength polypropylene Apr. 5, 2005
6800718 Process for producing polytrimethylene terephthalate (PTT) Oct. 5, 2004
6762253 Process for the preparation of ethylene copolymers, and their use as additives to mineral oil and mineral oil distillates Jul. 13, 2004
6762254 Ethylene(meth)acrylate copolymers with low residual content in comonomers Jul. 13, 2004
6670443 Method for the production of olefin/carbon monoxide copolymers Dec. 30, 2003
6632907 Process for producing methacrylic polymer Oct. 14, 2003
6610806 Living olefin polymerization processes Aug. 26, 2003
6610797 Method for producing ethylene copolymers in segmented tubular reactors and utilizing copolymers as a flow improver Aug. 26, 2003
6592913 Crosslinked branched polyesters Jul. 15, 2003
6590069 Methods of post-polymerization extruder injection in condensation polymer production Jul. 8, 2003
6573359 Methods of post-polymerization injection in condensation polymer production Jun. 3, 2003
6573343 Multistep process for preparing polyolefins having high melt strength Jun. 3, 2003
6566486 Method of producing branched polyamides May. 20, 2003

1 2 3 4

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