US5605966A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microcapsules containing a core material suitable as a leveling agent
Assignee: BASF SE
•
Filing: 1993-12-13
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Granted: 1997-02-25
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Expires: 2013-12-13
Abstract
Abstract Microcapsules comprise a polymeric wall material and a polymeric core material which is suitable as a leveling agent for film formation by film-forming oligomers and polymers.
Inventors
- 👤 Bernhard Schuler
- 👤 Georg Bobar
- 👤 Tilmann Korth
- 👤 Ottokar Flocken
- 👤 Peter Gleich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:05
CPC Classifications
B; B01; B01J; B01J13/00; B01J13/02; B01J13/06; B01J13/14; C; C09; C09D; C09D7/00; C09D7/40; C09D7/47; Y; Y10; Y10S; Y10S524/00; Y10S524/904; Y10S525/00; Y10S525/902; Y10T; Y10T428/00; Y10T428/29; Y10T428/2982; Y10T428/2984; Y10T428/2985; Y10T428/2987
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
A powder formulation for the production of coatings, comprising: a film-forming polymer in powder form; and a plurality of microcapsules comprising a polymeric core material and a polymeric resin wall material covering said core material; said polymeric resin wall material being selected from the group consisting of an aminoplast resin, an epoxy resin, a polyamide resin, a polyurethane resin, a polyurea resin, a poly(meth)acrylate resin, a vinyl resin and mixtures thereof; said polymeric core material comprising a leveling agent for the film-forming polymer, wherein said microcapsules are present in an amount of from 0.1 to 10% of the total weight of the powder formulation.
Claim 2
Dependent Claim
104 words
A powder formulation for the production of coatings, comprising: a film-forming polymer in powder form; and a plurality of microcapsules comprising a polymeric core material and a polymeric resin wall material covering said core material; said polymeric resin wall material being selected from the group consisting of an aminoplast resin, an epoxy resin, a polyamide resin, a polyurethane resin, a polyurea resin, a poly(meth)acrylate resin, a vinyl resin and mixtures thereof; said polymeric core material comprising a leveling agent for the film-forming polymer, wherein said microcapsules are present in an amount of from 0.1 to 10% of the total weight of the powder formulation.
References Cited (Backward Citations)
US3594328A
Cited
US3516941A
Cited
US3553183A
Cited
US4187194A
Cited
US3970725A
Cited
US4097404A
Cited
GB1492753A
Cited
US4120841A
Cited
US4171407A
Cited
EP0026914A1
Cited
EP0088566A2
Cited
DE3407829A1
Cited
US4708924A
Cited
US5021469A
Cited
US5384358A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-02-25 | 2000-08-26 | 2001-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-02-25 | 2004-08-26 | 2005-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-02-25 | 2008-08-26 | 2009-02-25 | $7700.00 | Window Closed / Lapsed |