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Class Information
Number: 525/53
Name: Synthetic resins or natural rubbers -- part of the class 520 series > Synthetic resins (class 520, subclass 1) > Mixing of two or more solid polymers; mixing of solid polymer or sicp with sicp or spfi; mixing of sicp with an ethylenic agent; mixing of solid polymer with a chemical treating or ethylenic agent; or processes of forming or reacting; or the resultant product of any of the above operations > Utilizing an apparatus with two or more physically distinct zones
Description: Subject matter wherein a reaction is effected in at least two or more physically distinct zones (e.g., regions, stages, etc.), said zones being part of a single reactor which has a plurality of such physically distinct zones or such zones may be part of separate reactors which are interconnected at some point.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7601787 |
Ethylene polymerization process |
Oct. 13, 2009 |
| 7579422 |
Propylene random copolymer and process for the production thereof |
Aug. 25, 2009 |
| 7576166 |
Process for the production of linear low-density polyethylene composition |
Aug. 18, 2009 |
| 7531605 |
Process for producing polyolefin resin composition and polypropylene composition |
May. 12, 2009 |
| 7524897 |
Film with high impact strength |
Apr. 28, 2009 |
| 7524903 |
Process and apparatus for the polymerization of propylene |
Apr. 28, 2009 |
| 7521507 |
Polypropylene-based adhesive compositions |
Apr. 21, 2009 |
| 7488774 |
Reactor system for the production of high impact polystyrene |
Feb. 10, 2009 |
| 7482406 |
Impact resistant polyolefin compositions |
Jan. 27, 2009 |
| 7470756 |
Propylene random copolymer and process for the production thereof |
Dec. 30, 2008 |
| 7452953 |
Propylene random copolymer and process for the production thereof |
Nov. 18, 2008 |
| 7449527 |
Polyolefin production |
Nov. 11, 2008 |
| 7442743 |
Propylene polymer resin with improved properties |
Oct. 28, 2008 |
| 7427649 |
Polyethylene blow molding composition for producing small containers |
Sep. 23, 2008 |
| 7423098 |
Polyethylene process |
Sep. 9, 2008 |
| 7378472 |
Injection moulding polymer |
May. 27, 2008 |
| 7365136 |
High melt strength polypropylene |
Apr. 29, 2008 |
| 7351777 |
Retarded anionic polymerization of vinyl aromatic monomers using insoluble or heterogeneous retardants |
Apr. 1, 2008 |
| 7351776 |
Bulk polymerization process |
Apr. 1, 2008 |
| 7348381 |
High modulus, high ductility polyolefins |
Mar. 25, 2008 |
| 7345116 |
Clear polycarbonate polyester blend |
Mar. 18, 2008 |
| 7312277 |
Mass polymerized rubber-modified monovinylidene aromatic copolymer composition |
Dec. 25, 2007 |
| 7256239 |
Polymer film |
Aug. 14, 2007 |
| 7256240 |
Process of making polymer blends |
Aug. 14, 2007 |
| 7250473 |
Multimodal polyolefin pipe |
Jul. 31, 2007 |
| 7235618 |
Polypropylene polymers |
Jun. 26, 2007 |
| 7232866 |
Ethylene polymer composition |
Jun. 19, 2007 |
| 7230048 |
Process for continuous production of reactive polymers with in-line post-modification and products thereof |
Jun. 12, 2007 |
| 7220812 |
Propylene polymer resin with improved properties |
May. 22, 2007 |
| 7217772 |
Process for production of propylene homopolymers |
May. 15, 2007 |
| 7163989 |
Processes and apparatus for continuous solution polymerization |
Jan. 16, 2007 |
| 7132474 |
Method for preparing styrenic resin having high impact strength and gloss |
Nov. 7, 2006 |
| 7127853 |
Process for producing polyethylene pipe resins |
Oct. 31, 2006 |
| 7115687 |
Process and apparatus for producing olefin polymers |
Oct. 3, 2006 |
| 6962889 |
Spherical catalyst for olefin polymerization |
Nov. 8, 2005 |
| 6951901 |
Method for continuous anionic polymerization of impact-resistant polystyrene |
Oct. 4, 2005 |
| 6921799 |
Olefin polymerization process |
Jul. 26, 2005 |
| 6908573 |
Polymeric resin blends and methods of manufacture thereof |
Jun. 21, 2005 |
| 6875826 |
High melt strength polypropylene |
Apr. 5, 2005 |
| 6872682 |
.alpha.-olefin polymerization catalyst system and its use for the polymerization of .alpha.-olefins |
Mar. 29, 2005 |
| 6835791 |
Stretched polypropylene film |
Dec. 28, 2004 |
| 6777490 |
Process for preparing a pressure-sensitive self-adhesive composition wherein tackifiers in dispersed, melted or solid form are mixed with natural rubber latex |
Aug. 17, 2004 |
| 6770715 |
High molecular weight, medium density polyethylene |
Aug. 3, 2004 |
| 6767960 |
Process for preparing high impact vinyl aromatic polymer by continuous anion polymerization method |
Jul. 27, 2004 |
| 6759500 |
High-molecular polypropylene with a broad distribution of the molecular weight and a short isotactic sequence length |
Jul. 6, 2004 |
| 6747103 |
High-stiffness propylene polymers and a process for the preparation thereof |
Jun. 8, 2004 |
| 6686423 |
Method for carrying out the anionic polymerization of vinylaromatic monomers |
Feb. 3, 2004 |
| 6686419 |
Multimodal ethylene, alpha-olefin and diene polymers, processes for making and devices comprising such compositions |
Feb. 3, 2004 |
| 6646044 |
Continuous production method of propylene-based block copolymer |
Nov. 11, 2003 |
| 6596824 |
Method for producing polyolefin and gas phase polymerization apparatus |
Jul. 22, 2003 |
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