US4514546A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coating powder based on saponified ethylene/vinyl acetate copolymers and the use thereof
Assignee: Bayer AG
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Filing: 1984-02-06
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Granted: 1985-04-30
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Expires: 2004-02-06
Abstract
Abstract This invention relates to the production and use of coating powders based on saponified ethylene/vinyl acetate copolymers (EVA copolymers) modified with polyalkyl (meth) acrylates. Coatings and films produced from these coating powders are distinguished by the flexibility and elasticity thereof, especially at low temperatures.
Inventors
- 👤 Raoul Resz
- 👤 Heinrich Alberts
- 👤 Hans-Heribert Burgdorfer
- 👤 Aziz El Sayed
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:09
CPC Classifications
C; C09; C09D; C09D123/00; C09D123/02; C09D123/04; C09D123/08; Y; Y10; Y10S; Y10S525/00; Y10S525/924
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
46 words
A powder coating composition which consists essentially of: (1) from 99.95 to 80% by weight of one or more saponified ethylene/vinyl acetate copolymers and (2) from 20 to 0.05%, by weight, of one or more (meth) acrylic acid C 1 -C 24 alkyl ester homo-or co-polymers.
Claim 2
Dependent Claim
46 words
A powder coating composition which consists essentially of: (1) from 99.95 to 80% by weight of one or more saponified ethylene/vinyl acetate copolymers and (2) from 20 to 0.05%, by weight, of one or more (meth) acrylic acid C 1 -C 24 alkyl ester homo-or co-polymers.
Claim 3
Dependent Claim
18 words
A composition as claimed in claim 1, wherein from 0.1 to 5%, by weight, of (2) is present.
Claim 4
Dependent Claim
22 words
A process for the production of a coated substrate which comprises applying to a substrate a composition as claimed in claim 1.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-04-29 | 1988-10-29 | 1989-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-04-29 | 1992-10-29 | 1993-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-04-29 | 1996-10-29 | 1997-04-30 | $7700.00 | Window Closed / Lapsed |