Process for the preparation of polyolefin-based graft copolymers comprising a first long chain branched polyolefin block and one or multiple polymer side chains
US-2018371176-A1 · Dec 27, 2018 · US
containing polyester or polycarbonate sequences
containing polyester or polycarbonate sequences · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C08G81/027 |
| Official title | {containing polyester or polycarbonate sequences} |
| Display label | containing polyester or polycarbonate sequences |
| Total patents | 246 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 11 |
| 2017 | 22 |
| 2018 | 29 |
| 2019 | 37 |
| 2020 | 31 |
| 2021 | 23 |
| 2022 | 25 |
| 2023 | 17 |
| 2024 | 25 |
| 2025 | 18 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Recovery of monomer from polyurethane materials by depolymerization
US-10160741-B2 · Dec 25, 2018 · US
Polymer blends comprising polycarbonate and polymethyl methacrylate
US-10155845-B2 · Dec 18, 2018 · US
Polyurethane/urea materials
US-2018346654-A1 · Dec 6, 2018 · US
Process for controlling the structure of a block copolymer by selective copolymerization, by ring opening, of cyclic carbonate and lactone monomers
US-2018346643-A1 · Dec 6, 2018 · US
Functionalized flame-retardant aconitic acid-derived molecules
US-2018346656-A1 · Dec 6, 2018 · US
Polymer compositions and use of these polymer compositions as dispersants
US-10131750-B2 · Nov 20, 2018 · US
Curable coating compositions containing poly activated methylene resins and polyisocyanates
US-2018282575-A1 · Oct 4, 2018 · US
Polycarbonate resin composition and molded article thereof
US-2018251606-A1 · Sep 6, 2018 · US
Resin fine particles, method of producing resin fine particles, method of producing resin particles, and method of producing toner
US-2018231901-A1 · Aug 16, 2018 · US
Reversible shape memory polymers exhibiting ambient actuation triggering
US-10040909-B2 · Aug 7, 2018 · US
High-chi block copolymers for directed self-assembly
US-2018163003-A1 · Jun 14, 2018 · US
Thin film self assembly of topcoat-free silicon-containing diblock copolymers
US-9982097-B2 · May 29, 2018 · US
Methods for synthesis of polyolefin-containing block copolymers
US-2018134833-A1 · May 17, 2018 · US
Methods for synthesis of end-functionalized polyolefins
US-2018134873-A1 · May 17, 2018 · US
Brush block copolymer infrared 1-D photonic crystals using linear polymer additives
US-9957383-B2 · May 1, 2018 · US
Cured film formation composition, orientation material, and retardation material
US-2018112032-A1 · Apr 26, 2018 · US
Polymer blends comprising polycarbonate and polymethyl methacrylate
US-2018112035-A1 · Apr 26, 2018 · US
Graft copolymer based on carbazole capable of controlling self-assembled structure and method of synthesizing the same
US-9944756-B1 · Apr 17, 2018 · US
Block co-condensates of polysiloxanes and dihydroxydiphenylcycloalkane-based n (co)polycarbonates
US-2018079862-A1 · Mar 22, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C08G81/027?
- CPC C08G81/027 is the Cooperative Patent Classification code for “containing polyester or polycarbonate sequences.”
- How many patents are filed under CPC C08G81/027 (containing polyester or polycarbonate sequences)?
- Our database includes 246 publications tagged with this CPC code.
- Is patent activity under CPC C08G81/027 growing?
- Publication counts under this code: 25 in 2024 vs 18 in 2025 (latest complete years).