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Class Information
Number: 526/63
Name: Synthetic resins or natural rubbers -- part of the class 520 series > Synthetic resins (class 520, subclass 1) > Polymerizing in presence of inert solid masses so as to heat, cool, or grind polymerizing mass
Description: Subject matter under Class 520, ... wherein heat exchange or reduction of particle size of a polymerizing polymer is effected by direct contact of said polymerizing polymer with an inert-solid mass which solid is not an internal part of the polymerization apparatus or of the processing apparatus.

Patents under this class:

Patent Number Title Of Patent Date Issued
8129482 Method of preventing or reducing polymer agglomeration on grid in fluidized-bed reactors Mar. 6, 2012
8124697 Method of preventing or reducing agglomeration on grid in fluidized-bed vessel Feb. 28, 2012
7705107 Process for the preparation of polycarbonates Apr. 27, 2010
7582708 Bulk polymerization reactor methods Sep. 1, 2009
7119132 Continuous neat polymerization and ambient grinding methods of polyolefin drag reducing agents Oct. 10, 2006
6979717 Anionic process design for rapid polymerization of polystyrene without gel formation and product produced there from Dec. 27, 2005
6965002 Process for producing vinyl chloride-based polymer Nov. 15, 2005
6943222 Temperature-controlled process of producing polymer Sep. 13, 2005
6867269 Water-absorbent resin and production process therefor Mar. 15, 2005
6753387 Temperature controlling system for olefin polymerization reactors Jun. 22, 2004
6706846 Method for end-capping polycarbonate resins and composition for use in same Mar. 16, 2004
6613868 Process for producing polycarbonates Sep. 2, 2003
6610806 Living olefin polymerization processes Aug. 26, 2003
6414092 Cholesteric flakes Jul. 2, 2002
6207770 Cholesteric flakes Mar. 27, 2001
5886120 Method for preparing water absorbent resin Mar. 23, 1999
5728782 Gas phase anionic polymerization of dienes and vinyl-substituted aromatic compounds Mar. 17, 1998
5728792 Method for preparing water absorbent resin Mar. 17, 1998
5063110 Composition comprising prepolymer powder and pulverulent inorganic material Nov. 5, 1991
4970279 Process for polymerizing one or more 1-olefins in the gas phase in the presence of pulverulent inorganic material Nov. 13, 1990
4736001 Process for the polymerization or copolymerization of butadiene in the presence of solid particles insoluable in the reaction medium Apr. 5, 1988
4585843 Exothermic reactions Apr. 29, 1986
4335237 Adiabatic polymerization of acrylamide in the presence of sodium sulfate decahydrate Jun. 15, 1982
4277585 Vertical autoclave for bulk polymerization of vinyl chloride Jul. 7, 1981
4165420 Solid state polymerization of polyester prepolymer Aug. 21, 1979
4135043 Process for preparing polymers in powder form Jan. 16, 1979
4021394 Continuous process for the preparation of a cationically modified acrylamide polymer May. 3, 1977
3981855 Reactor process conditions control Sep. 21, 1976
3948862 Continuous process for preparing aliphatic polycarbonamides Apr. 6, 1976

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