Patents
US 10301446 B2: Method for generating a microstructure in a material that includes thermoplastic polymer molecules, and related systems
- Granted
- 2019-05-28
- Filed
- 2014-09-19 application 15023109
- Type
- Utility · 10 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A method for generating a microstructure that includes microcellular bubbles, in a material that includes molecules of a thermoplastic polymer, comprises: determining a size-index for the material that represents an average size of the thermoplastic polymer molecules included in the material, and in response to the determined size-index, setting a parameter of a process to generate a microstructure in the material that includes microcellular bubbles. The process to generate a microstructure in the material includes: 1) infusing into the material, during a first period, a gas that does not react with the material, 2) making the gas-infused material thermodynamically unstable.
Source: PVGPATDIS, file of 2026-04-10 (ipg190528.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Dart Container Corporation 48 patents | US company or organization | Big Rapids, MI | DART CONTAINER CORPORATION State business registration EXACT high confidence: identical full name and state | PVGPATDIS, file of 2026-04-10 |
| UNIVERSITY OF WASHINGTON THROUGH ITS CENTER FOR COMMERCIALIZATION 357 patents | US company or organization | Seattle, WA | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Krishna Nadella | Redmond, WA | 20 | PVGPATDIS, file of 2026-04-10 | |
| Vipin Kumar | Seattle, WA | 42 | PVGPATDIS, file of 2026-04-10 | |
| Huimin Guo | Seattle, WA | 12 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| C08J | Working-up; general processes of compounding; after-treatment not covered by subclasses c08b, c08c, c08f, c08g or c08h | C08J9/122 | PVGPATDIS, file of 2026-04-10 |
| B29B | Preparation or pretreatment of the material to be shaped; making granules or preforms; recovery of plastics or other constituents of waste material containing plastics | B29B13/00 | PVGPATDIS, file of 2026-04-10 |
| 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 | B29C44/3453 | 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 | B29K2067/003 | 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 |
|---|---|---|---|---|---|
| 2017-03-08 | Assignment Assignment of assignor's interest | GUO, HUIMIN signed 2017-03-04 KUMAR, VIPIN signed 2017-03-07 NADELLA, KRISHNA V. signed 2017-03-07 | THE UNIVERSITY OF WASHINGTON THROUGH ITS CENTER FOR COMMERCIALIZATION SEATTLE, WA DART CONTAINER CORPORATION MASON, MI | 41495/804 | 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.