C08F 2500/00
Characteristics or properties of obtained polyolefins
Official title: Characteristics or properties of obtained polyolefins; Use thereof
C08F2500/00 (Characteristics or properties of obtained polyolefins) appears on 1,046 US grants and 1,253 published applications in this corpus.
Search patents in C08F- Granted patents
- 1,046
- Published applications
- 1,253
- Assignees
- 393
- Inventors
- 2,893
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 1 | 1 |
| 2007 | 0 | 2 |
| 2008 | 1 | 3 |
| 2009 | 0 | 4 |
| 2010 | 2 | 5 |
| 2011 | 1 | 7 |
| 2012 | 0 | 11 |
| 2013 | 3 | 15 |
| 2014 | 11 | 28 |
| 2015 | 35 | 24 |
| 2016 | 32 | 62 |
| 2017 | 46 | 147 |
| 2018 | 92 | 295 |
| 2019 | 155 | 249 |
| 2020 | 212 | 109 |
| 2021 | 178 | 90 |
| 2022 | 72 | 66 |
| 2023 | 65 | 46 |
| 2024 | 49 | 40 |
| 2025 | 53 | 24 |
| 2026 | 32 | 24 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C08F 2500/12Melt flow index or melt flow ratioIndexing code358
- C08F 2500/17ViscosityIndexing code194
- C08F 2500/01High molecular weightIndexing code168
- C08F 2500/03Narrow molecular weight distribution, i.e. mw/mn < 3Indexing code133
- C08F 2500/08Low density, i.e. < 0.91 g/cm3Indexing code124
- C08F 2500/02Low molecular weightIndexing code123
- C08F 2500/04Broad molecular weight distribution, i.e. mw/mn > 6Indexing code116
- C08F 2500/26Use as polymer for film formingIndexing code116
All 40 subgroupsShow fewer
- C08F 2500/05Bimodal or multimodal molecular weight distributionIndexing code110
- C08F 2500/09Long chain branchesIndexing code99
- C08F 2500/18Bulk densityIndexing code90
- C08F 2500/11Melt tension or melt strengthIndexing code81
- C08F 2500/24Polymer with special particle form or sizeIndexing code80
- C08F 2500/07High density, i.e. > 0.95 g/cm3Indexing code78
- C08F 2500/13Environmental stress cracking resistanceIndexing code53
- C08F 2500/21Rubbery or elastomeric propertiesIndexing code52
- C08F 2500/10Short chain branchesIndexing code41
- C08F 2500/15IsotacticIndexing code37
- C08F 2500/16SyndiotacticIndexing code28
- C08F 2500/34Melting point [tm]Indexing code26
- C08F 2500/27Amount of comonomer in wt% or mol%Indexing code22
- C08F 2500/19Shear ratio or shear ratio indexIndexing code14
- C08F 2500/35CrystallinityIndexing code13
- C08F 2500/30Flexural modulusIndexing code12
- C08F 2500/25CycloolefineIndexing code11
- C08F 2500/06Comonomer distributionIndexing code9
- C08F 2500/32Glass transition temperature [tg]Indexing code8
- C08F 2500/36Terpolymer with exactly three olefinic monomersIndexing code8
- C08F 2500/37Elution or crystallisation fractionationIndexing code8
- C08F 2500/20Activation energy or enthalpyIndexing code7
- C08F 2500/33Crystallisation temperature [tc]Indexing code6
- C08F 2500/22Sticky polymerIndexing code4
- C08F 2500/29Terminal unsaturationsIndexing code4
- C08F 2500/31Impact strength or impact resistanceIndexing code4
- C08F 2500/055Monomodal/unimodal molecular weight distributionIndexing code3
- C08F 2500/14Die swell or die swell ratio or swell ratioIndexing code3
- C08F 2500/39Tensile storage modulus e'Indexing code3
- C08F 2500/38Branching index [gvis], i.e. ratio of the intrinsic viscosity of the branchedIndexing code2
- C08F 2500/28Internal unsaturationsIndexing code1
- C08F 2500/23Waxy propertiesIndexing code0
Recent patents
- Rubber composition comprising a polyphenylene ether resin6 Oct 2026US 12,753,260 B2Compagnie Generale Des Etablissements Michelin
- Process and catalysts for hydrogen mediated anionic polymerization of conjugated dienes and liquid polymers thereof29 Sep 2026US 12,747,315 B2Albemarle Corporation
- Polymers with low levels of volatile organic compounds and methods of making such polymers22 Sep 2026US 12,742,026 B2ExxonMobil Chemical Patents Inc.
- Copolymer, composition, molded product and coated electrical wire22 Sep 2026US 12,742,028 B2AGC Inc.
- Copolymer, injection molded body, member to be compressed, and covered wire15 Sep 2026US 12,735,562 B2Daikin Industries, Ltd.
- Supported olefin polymerization catalysts comprising substituted 2-hydroxythiophene compounds8 Oct 2026US 2026/0308284 A1Dow Global Technologies LLC
- Cable compositions comprising a multimodal ethylene-butene-hexene polymer1 Oct 2026US 2026/0297229 A1Abu Dhabi Polymers Co. Ltd (Borouge) - Sole Proprietorship L.L.C.
- Process for producing branched polyolefin17 Sep 2026US 2026/0275006 A1Dow Global Technologies LLC
- Dual Catalyst System for Producing High Density Polyethylenes With Long Chain Branching10 Sep 2026US 2026/0265420 A1Chevron Phillips Chemical Company LP
- Alpha-omega-functionalized polymers3 Sep 2026US 2026/0258165 A1Arlanxeo Deutschland GmbH
Most cited
By later US patents
- Catalyst compositions and polyolefins for extrusion coating applications239US 7,041,617 B2Chevron Phillips Chemical Company LP · 2006
- Low density polyolefin resins and films made therefrom75US 9,006,367 B2Chevron Phillips Chemical Company LP · 2015
- Polymers with improved ESCR for blow molding applications66US 9,169,337 B2Chevron Phillips Chemical Company LP · 2015
- Long chain branched polymers and methods of making same43US 9,023,967 B2Chevron Phillips Chemical Company LP · 2015
- Catalyst compositions and polyolefins for extrusion coating applications40US 7,456,243 B2Chevron Phillips Chemical Company LP · 2008