Patents
US 7906583 B2: Radial block copolymers and adhesives based thereon with improved die-cutting performance
- Granted
- 2011-03-15
- Filed
- 2007-10-31 application 11932360
- Type
- Utility · 30 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
Improved adhesives are provided through the use of styrenic radial block copolymers, containing at least 40 wt % diblock copolymers, the adhesives have improved adhesive properties and a reduced elastic behavior under die-cutting conditions. Compared to conventional linear block copolymers of similar molecular weight, radial copolymers offer higher holding power and lower melt viscosity for the adhesive. They therefore contribute to an improved balance between processability and end-use properties.
Source: PVGPATDIS, file of 2026-04-10 (ipg110315.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| THE DOW CHEMICAL COMPANY 17 patents | US company or organization | Midland, MI | THE DOW CHEMICAL COMPANY Federal lobbying client EXACT high confidence: identical full name and state | PVGPATDIS, file of 2026-04-10 |
| ExxonMobil Chemical Patents Inc. 2,143 patents | US company or organization | Houston, TX | EXXONMOBIL CHEMICAL PATENTS 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 |
|---|---|---|---|---|
| Jacques Lechat | Braine-l'Alleud, BE | 1 | PVGPATDIS, file of 2026-04-10 | |
| Michael O. Myers | Baton Rouge, LA | 3 | PVGPATDIS, file of 2026-04-10 | |
| Marie-Noelle Cazenave | Pau, FR | 1 | PVGPATDIS, file of 2026-04-10 | |
| Christophe Derail | Lons, FR | 3 | PVGPATDIS, file of 2026-04-10 | |
| Nicolas Kappes | Brussels, BE | 1 | PVGPATDIS, file of 2026-04-10 | |
| Jurgen J. M. Schroeyers | Helchteren, BE | 13 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| C08L | Compositions of macromolecular compounds | C08L53/00 | PVGPATDIS, file of 2026-04-10 |
| C09J | Adhesives; non-mechanical aspects of adhesive processes in general; adhesive processes not provided for elsewhere; use of materials as adhesives | C09J153/00 | 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 |
|---|---|---|---|---|---|
| 2011-08-09 | Assignment Assignment of assignor's interest | EXXONMOBIL CHEMICAL PATENTS, INC. signed 2011-04-22 | TSRC (USA) INVESTMENT CORPORATION COUNTRY OF NEW CASTLE, WILMINGTON, DE | 26722/638 | ECORSEXC, file of 2026-09-25 |
| 2011-08-09 | Assignment Assignment of assignor's interest | THE DOW CHEMICAL COMPANY signed 2011-04-26 | TSRC (USA) INVESTMENT CORPORATION COUNTRY OF NEW CASTLE, WILMINGTON, DE | 26722/315 | ECORSEXC, file of 2026-09-25 |
| 2011-03-28 | Name change Change of name | EXXON CHEMICAL PATENTS INC. signed 2001-01-24 | EXXONMOBIL CHEMICAL PATENTS INC. HOUSTON, TX | 26035/519 | ECORSEXC, file of 2026-09-25 |
| 2011-03-28 | Assignment Assignment of assignor's interest | MYERS, MICHAEL O. signed 2008-02-25 | THE DOW CHEMICAL COMPANY MIDLAND, MI | 26030/666 | 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.