Patents
US 11247391 B2: Method for processing PAEK and articles manufactured from the same
- Granted
- 2022-02-15
- Filed
- 2019-12-26 application 16727474
- Type
- Utility · 18 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A process for manufacturing a three-dimensional object from a powder by selective sintering the powder using electromagnetic radiation. The powder includes recycled PAEK. In one embodiment, the powder includes recycled PEKK. In one embodiment, the powder includes first recycle PEKK and second recycle PEKK. In one embodiment, the powder consists essentially of recycled PEKK. The process may include the step of maintaining a bed of a selective laser sintering machine at approximately 300 degrees Celsius and applying a layer of the powder to the bed. The average in-plane tensile strength of the three-dimensional object is greater than that of a three-dimension object manufactured by selective sintering using a powder including an unused PEKK powder.
Source: PVGPATDIS, file of 2026-04-10 (ipg220215.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Hexcel Corporation 118 patents | US company or organization | Stamford, CT | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Scott DeFelice | Holyoke, MA | 25 | PVGPATDIS, file of 2026-04-10 | |
| Anthony DeCarmine | Lebanon, CT | 26 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| B29C | Shaping or joining of plastics; shaping of material in a plastic state, not otherwise provided for; after-treatment of the shaped products, e.g. repairing | B29C64/153 | PVGPATDIS, file of 2026-04-10 |
| B33Y | Additive manufacturing, i.e. manufacturing of three-dimensional [3d] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3d printing, stereolithography or selective laser sintering | B33Y10/00 | PVGPATDIS, file of 2026-04-10 |
| C08G | Macromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds | C08G65/4012 | PVGPATDIS, file of 2026-04-10 |
| B29K | Indexing scheme associated with subclasses b29b, b29c or b29d, relating to moulding materials or to materials for ; moulds, ; reinforcements, fillers or preformed parts, e.g. inserts | B29K2071/00 | 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 |
|---|---|---|---|---|---|
| 2021-01-25 | Correction Conversion | OXFORD PERFORMANCE MATERIALS, LLC signed 2013-12-27 | OXFORD PERFORMANCE MATERIALS, INC. SOUTH WINDSOR, CT | 55106/838 | ECORSEXC, file of 2026-09-25 |
| 2021-01-25 | Assignment Assignment of assignor's interest | OXFORD PERFORMANCE MATERIALS, INC. signed 2018-01-10 | HEXCEL CORPORATION STAMFORD, CT | 55024/346 | ECORSEXC, file of 2026-09-25 |
| 2021-01-25 | Assignment Assignment of assignor's interest | DECARMINE, ANTHONY signed 2013-06-04 DEFELICE, SCOTT signed 2013-06-04 | OXFORD PERFORMANCE MATERIALS, LLC SOUTH WINDSOR, CT | 55024/310 | 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.