Patents
US 12330006 B2: Polymer immobilization matrix for containment of hazardous materials and methods of using the same
- Granted
- 2025-06-17
- Filed
- 2022-11-18 application 18056845
- Type
- Utility · 22 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
The present disclosure describes a unique, two-part, water-soluble polymer matrix material and a method of application that immobilizes a wide variety of loose powder or crystalline hazardous materials and renders them “safe” or at least “safer” for handling and transport. The polymer matrix material is a two-part polymer material comprising a liquid cross-linking polymer and a cross-linking agent, initiator, or biocide contained in a solution. The cross-linking agent functions to cross-link the polymer and cause it to harden in place.
Source: PVGPATDIS, file of 2026-04-10 (ipg250617.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| University of Rhode Island Board of Trustees 40 patents | US company or organization | Kingston, RI | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Jimmie Oxley | Narragansett, RI | 6 | PVGPATDIS, file of 2026-04-10 | |
| James L. Smith | Narragansett, RI | 13 | PVGPATDIS, file of 2026-04-10 | |
| Robert Ichiyama | Kingston, RI | 1 | PVGPATDIS, file of 2026-04-10 | |
| Gerald Kagan | Foxborough, MA | 2 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| A62D | Chemical means for extinguishing fires or for combating or protecting against harmful chemical agents; chemical materials for use in breathing apparatus | A62D3/33 | PVGPATDIS, file of 2026-04-10 |
| C08L | Compositions of macromolecular compounds | C08L101/14 | PVGPATDIS, file of 2026-04-10 |
| C08J | Working-up; general processes of compounding; after-treatment not covered by subclasses c08b, c08c, c08f, c08g or c08h | C08J3/242 | 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 |
|---|---|---|---|---|---|
| 2022-11-19 | Assignment Transfer and vesting by statute r.i.g.l. | RHODE ISLAND COUNCIL ON POSTSECONDARY EDUCATION signed 2020-02-01 | UNIVERSITY OF RHODE ISLAND BOARD OF TRUSTEES KINGSTON, RI | 62913/324 | ECORSEXC, file of 2026-09-25 |
| 2022-11-19 | Assignment Assignment of assignor's interest | ICHIYAMA, ROBERT signed 2019-03-12 KAGAN, GERALD signed 2019-03-12 OXLEY, JIMMIE signed 2019-03-12 SMITH, JAMES L. signed 2019-03-12 | RHODE ISLAND COUNCIL ON POSTSECONDARY EDUCATION WARWICK, RI | 61833/162 | 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.