Patents
US 11466400 B2: Finish composition
- Granted
- 2022-10-11
- Filed
- 2019-05-09 application 16407365
- Type
- Utility · 22 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
Provided is a composition for the treatment of fibers, such as PAN precursor fibers. The finish composition includes a polysiloxane; an emulsifier; water; and a dicarboxylic acid having a pKa from 1 to 4, and boiling point from 200 to 400° C. The dicarboxylic acid may have the following formula: where R1 is absent or a saturated or unsaturated, linear or branched, aromatic substituted or unsubstituted, hydrocarbon group; Y1 and Y2 are independently hydrogen, nitrogen, oxygen, sulfur, phosphorus, C1-C6 alkyl group, or an alkoxy group; and X1 and X2 are independently one or more hydrogen atoms, a metal, a quaternary amine, or a hydrocarbon group having up to 6 carbon atoms, the hydrocarbon group being an alkyl group, an alkylene group, or an aromatic group, which may be branched or linear, and may optionally have one or more heteroatoms selected from the group consisting of nitrogen, oxygen, sulfur and phosphorus.
Source: PVGPATDIS, file of 2026-04-10 (ipg221011.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Hexcel Corporation 118 patents | US company or organization | Dublin, CA | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Michael E. Yurchenko | Decatur, AL | 2 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| D01F | Chemical features in the manufacture of artificial filaments, threads, fibres, bristles or ribbons; apparatus specially adapted for the manufacture of carbon filaments | D01F11/06 | PVGPATDIS, file of 2026-04-10 |
| D06M | Treatment, not provided for elsewhere in class d06, of fibres, threads, yarns, fabrics, feathers or fibrous goods made from such materials | D06M15/643 | PVGPATDIS, file of 2026-04-10 |
| C08G | Macromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds | C08G77/26 | PVGPATDIS, file of 2026-04-10 |
| C09D | Coating compositions, e.g. paints, varnishes or lacquers; filling pastes; chemical paint or ink removers; inks; correcting fluids; woodstains; pastes or solids for colouring or printing; use of materials therefor | C09D183/04 | PVGPATDIS, file of 2026-04-10 |
| C08L | Compositions of macromolecular compounds | C08L83/08 | PVGPATDIS, file of 2026-04-10 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2019-05-09 | Assignment Assignment of assignor's interest | YURCHENKO, MICHAEL E. signed 2019-05-08 | HEXCEL CORPORATION DUBLIN, CA | 49126/568 | ECORSEXC, file of 2026-09-25 |
Documents recorded with the USPTO Assignment Recordation Branch that list this patent. A security interest is a lender’s claim on the patent as collateral; a release ends it.
USPTO bulk data: PatentsView granted patents, disambiguated (PVGPATDIS) for patents, assignees, inventors, places and CPC categories; the USPTO Patent Assignment Dataset (ECORSEXC) for assignments and security interests. Patents filed in the last 20 years. No claims or full text. Links to other records are by name (and state): EXACT means the identical full name and state; FUZZY means a looser name match, with the confidence shown.