Description
Class C08F : MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
Subclass 2/01: Processes of polymerisation characterised by special features of the polymerisation apparatus used
C08F 2/01
Sub-Class
Stats
- 537 US PATENTS IN FORCE
- 87 US APPLICATIONS PENDING
- 86 Total Patent Owners
- 2,102 TOTAL INVENTORS
Recent Patents
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 12252607 | Process for manufacture of plasticized homopolymeric polyvinyl alcohol and plasticized polyvinyl alcohol polymer obtained therefrom | Jul 06, 21 | Mar 18, 25 | Aquapak IP Limited |
| 12252564 | Method for producing vinyl chloride type polymer | Jun 08, 20 | Mar 18, 25 | Shin-Etsu Chemical Co., Ltd. |
| 12240963 | Process for preparation of polyethylene | Oct 14, 19 | Mar 04, 25 | Sabic Global Technologies B.V. |
| 12239947 | Method for the production of superabsorbents | Aug 09, 19 | Mar 04, 25 | BASF SE |
| 12227601 | Polymeric materials | Jan 31, 20 | Feb 18, 25 | Innospec Limited |
| 12221500 | Suspension process for preparing ethylene polymers comprising drying of the polymer particles | May 28, 20 | Feb 11, 25 | Basell Polyolefine GmbH |
| 12209149 | Continuous preparation system of conjugated diene-based polymer | Dec 24, 20 | Jan 28, 25 | LG Chem, Ltd. |
| 12195562 | Ethylene polymerization processes and reactor systems for the production of multimodal polymers using combinations of a loop reactor and a fluidized bed reactor | Nov 01, 23 | Jan 14, 25 | Chevron Phillips Chemical Company LP |
| 12195564 | Enhanced ESCR and ductility bimodal rotomolding resin | May 25, 20 | Jan 14, 25 | NOVA CHEMICALS (INTERNATIONAL) SA |
| 12173094 | Multiple-stage heating for a flashline heater | Aug 21, 23 | Dec 24, 24 | Chevron Phillips Chemical Company LP |
| 12168702 | Radical polymerization in sealed containers | Dec 18, 20 | Dec 17, 24 | Baker Hughes Oilfield Operations LLC |
| 12162967 | Olefin-based polymer | Feb 20, 20 | Dec 10, 24 | LG Chem, Ltd. |
| 12157108 | Method for preparing superabsorbent polymer | Nov 05, 20 | Dec 03, 24 | LG Chem, Ltd. |
| 12152101 | Process for preparing catalysts and catalyst compositions | Oct 11, 23 | Nov 26, 24 | Formosa Plastics Corporation U.S.A. |
| 12139564 | Process for producing polyethylene | Nov 14, 23 | Nov 12, 24 | SUMITOMO CHEMICAL COMPANY, LIMITED |
| 12139598 | Process and apparatus for manufacture of processable polyvinyl alcohol | Jul 06, 21 | Nov 12, 24 | Aquapak IP Limited |
| 12134688 | Polypropylene pipe composition | May 07, 19 | Nov 05, 24 | Borealis AG |
| 12116430 | Recycle diluent control and optimization for slurry loop polyethylene reactors | Jan 23, 20 | Oct 15, 24 | ExxonMobil Chemical Patents Inc. |
| 12110349 | High-pressure polymerization process of ethylenically unsaturated monomers in a polymerization reactor | Dec 16, 19 | Oct 08, 24 | Basell Polyolefine GmbH |
| 12110351 | Method for the production of superabsorbers | Apr 11, 22 | Oct 08, 24 | BASF SE |
Recent Publications
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2025/0109,228 | SILICONE IMPACT MODIFIERS USING A ONE-STEP PROCESS | Dec 15, 22 | Apr 03, 25 | Not available |
| 2025/0092,173 | POLYOLEFIN POLYMER AND POLYOLEFIN POLYMERIZATION SYSTEM AND METHOD | Jul 23, 24 | Mar 20, 25 | Not available |
| 2025/0059,303 | Method of Suppressing Plugging in Manufacturing Process of Ethylene-Acrylic Acid Copolymer | Aug 14, 24 | Feb 20, 25 | Not available |
| 2025/0051,560 | RUBBER-REINFORCED VINYLAROMATIC (CO)POLYMERS AND PROCESS FOR THE PREPARATION THEREOF | Dec 05, 22 | Feb 13, 25 | Not available |
| 2025/0043,034 | Processes for Making Polyolefins with Composition Control | Dec 14, 22 | Feb 06, 25 | Not available |
| 2025/0043,035 | METHOD TO IMPROVE THE OPTICAL PROPERTIES OF ETHYLENE COPOLYMER COMPOSITIONS | Jan 13, 23 | Feb 06, 25 | NOVA CHEMICALS (INTERNATIONAL) SA |
| 2025/0026,872 | HIGH MELT FLOW POLYPROPYLENE COMPOSITION | Nov 29, 22 | Jan 23, 25 | Not available |
| 2025/0019,471 | CENTRALIZED HYDROCARBON TREATMENT IN A POLYMER PRODUCTION PROCESS | Jul 13, 23 | Jan 16, 25 | Not available |
| 2025/0019,468 | UPGRADED DRAFT TUBE FOR OLEFIN FLUIDIZED BED POLYMERIZATION | Nov 14, 22 | Jan 16, 25 | Not available |
| 2025/0002,613 | METHOD OF PREPARING VINYL CHLORIDE-BASED POLYMER | May 12, 23 | Jan 02, 25 | LG Chem Ltd. |
| 2025/0002,615 | METHOD FOR PREPARING GRAFT COPOLYMER, GRAFT COPOLYMER AND RESIN COMPOSITION COMPRISING SAME | Aug 05, 22 | Jan 02, 25 | LG Chem Ltd. |
| 2024/0400,729 | ETHYLENE POLYMERIZATION PROCESSES AND REACTOR SYSTEMS FOR THE PRODUCTION OF MULTIMODAL POLYMERS USING COMBINATIONS OF A LOOP REACTOR AND A FLUIDIZED BED REACTOR | Aug 15, 24 | Dec 05, 24 | Not available |
| 2024/0392,043 | PROCESS FOR PRODUCING A PROPYLENE COPOLYMER | Sep 15, 22 | Nov 28, 24 | Borealis AG |
| 2024/0384,010 | SYSTEMS AND TECHNIQUES FOR POLYMER DEGASSING | Jul 23, 24 | Nov 21, 24 | Chevron Phillips Chemical Company LP |
| 2024/0368,313 | DETERMINING THE LIQUID COMPOSITION IN A LOOP SLURRY POLYMERIZATION REACTOR | May 05, 23 | Nov 07, 24 | Not available |
| 2024/0360,254 | METHOD FOR PRODUCING ALPHA-OLEFIN | Jun 06, 22 | Oct 31, 24 | Idemitsu Kosan Co. Ltd. |
| 2024/0360,256 | PROCESS FOR MAKING PROPYLENE-BASED TERPOLYMER | May 09, 24 | Oct 31, 24 | Not available |
| 2024/0343,839 | GAS PHASE POLYMERIZATION PROCESS WITH IMPROVED GAS RECYCLING | Aug 30, 22 | Oct 17, 24 | Not available |
| 2024/0343,840 | PROCESS FOR PRODUCING POLYOLEFIN GRANULAR RESIN WITH INCREASED SETTLED BULK DENSITY | Aug 08, 22 | Oct 17, 24 | W. R. Grace & Co. - Conn. |
| 2024/0294,681 | IMPROVING CATALYST PERFORMANCE IN MULTI-STAGE POLYOLEFIN PRODUCTION | Jun 23, 22 | Sep 05, 24 | Not available |
Top Owners in This Subclass
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Patents Issued To Date - By Filing Year
Average Time to Issuance
- 30 Months (last 2 years Issuances)
- 30 Months (last 5 years Issuances)