US4927710A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Matting agent
Assignee: Japan Exlan Co Ltd
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Filing: 1989-04-05
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Granted: 1990-05-22
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Expires: 2009-04-05
Abstract
Abstract Acrylic fibers of extremely short length suitable as a matting agent for paint, etc. The fibers are produced from a polymer containing more than 50 weight % acrylonitrile, the fiber diameter is less than 100μ and the fiber length is less than 3 mm.
Inventors
- 👤 Koji Tanaka
- 👤 Minoru Ueda
- 👤 Taizo Masuda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:24
CPC Classifications
C; C09; C09D; C09D7/00; C09D7/40; C09D7/42; C09D5/00; Y; Y10; Y10S; Y10S430/00; Y10S430/151; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2964; Y10T428/2967; Y10T428/2973; Y10T428/298
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
46 words
A matting agent produced from fibers of a polymer containing acrylonitrile in a quantity more than 50 weight %, said fibers having a fiber diameter less than 100μ, a fiber length less than 0.3 mm, an aspect ratio less than 20, and a non-circular cross-sectional shape.
Claim 2
Dependent Claim
46 words
A matting agent produced from fibers of a polymer containing acrylonitrile in a quantity more than 50 weight %, said fibers having a fiber diameter less than 100μ, a fiber length less than 0.3 mm, an aspect ratio less than 20, and a non-circular cross-sectional shape.
Claim 3
Dependent Claim
18 words
The matting agent as claimed in claim 1 wherein the fibers contain a functional group having active hydrogen.
Claim 4
Dependent Claim
27 words
The matting agent as claimed in claim 2 wherein the content of the functional group having active hydrogen is 0.2-10% based on the weight of the fibers.
Claim 5
Dependent Claim
21 words
The matting agent as claimed in claim 1 wherein the fibers are applied with an oiling agent on the fiber surface.
Claim 6
Dependent Claim
31 words
A paint in which the matting agent as claimed in claim 1 is compounded in a quantity of 1 to 50 weight % based on the net weight of the paint.
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) | 1993-05-21 | 1993-11-20 | 1994-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-05-21 | 1997-11-20 | 1998-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-05-21 | 2001-11-20 | 2002-05-22 | $7700.00 | Window Closed / Lapsed |