Patents
US 11421129 B2: Polyurethane urea-containing adipic acid dihydrazide coating where active hydrogens react with the glycidol epoxy group to form a diol
- Granted
- 2022-08-23
- Filed
- 2020-12-04 application 17112257
- Type
- Utility · 3 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A coating composition containing added diol functionality to a urethane, a urea, or polyurethane urea functional resin where an adipic acid dihydrazide chain extender, or free adipic acid dihydrazide active hydrogens react with the oxirane group found in glycidol is described. The combination of diisocyanate, a polyether segment, optionally at least one polyester diol segment, optionally at least one poly(tetrahydrofuran) diol segment, optionally and at least one dimethylol propionic acid diol segment, at least one dihydrazide segment and glycidol compound introduces an increased hydrophilic structure, by diol addition, in compositions that are usable as coatings, on for example, medical devices.
Source: PVGPATDIS, file of 2026-04-10 (ipg220823.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Lake Region Manufacturing, Inc. 30 patents | US company or organization | Chaska, MN | LAKE REGION MANUFACTURING, INC. State business registration EXACT high confidence: identical full name and state | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Peter Anthony Edwards | Jacksonville, FL | 7 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| 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 | C09D175/04 | PVGPATDIS, file of 2026-04-10 |
| C08G | Macromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds | C08G18/0823 | 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 |
|---|---|---|---|---|---|
| 2021-09-10 | Security interest Security interest Security interest | GREATBATCH LTD. signed 2021-09-02 ELECTROCHEM SOLUTIONS, INC. signed 2021-09-02 LAKE REGION MEDICAL, INC. signed 2021-09-02 LAKE REGION MANUFACTURING, INC. signed 2021-09-02 | WELLS FARGO BANK, NATIONAL ASSOCIATION, AS ADMINISTRATIVE AGENT ROANOKE, VA | 57468/56 | PASDL, file of 2026-10-15 |
| 2020-12-07 | Assignment Assignment of assignor's interest | EDWARDS, PETER A signed 2018-10-03 | LAKE REGION MANUFACTURING, INC. CHASKA, MN | 54562/490 | 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.