US5413853A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Melamine resin foam
Assignee: Nisshinbo Holdings Inc
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Filing: 1994-06-27
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Granted: 1995-05-09
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Expires: 2014-06-27
Abstract
Abstract The present invention provides a melamine resin foam comprising a foam body obtained by foaming a resin composition composed mainly of a melamine-formaldehyde condensate and a blowing agent, and hydrophobic component coated on said foam body. This melamine resin foam is improved in fragility and water absorbability and in which the drawbacks of the prior art have been alleviated.
Inventors
- 👤 Yasuo Imashiro
- 👤 Shun Hasegawa
- 👤 Takahiko Matsumoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:39
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/36; C08J9/40; C08J9/42; C08J2205/00; C08J2205/04; C08J2205/05; C08J2361/00; C08J2361/20; C08J2361/26; C08J2361/28; C08J2421/00; C08J2483/00; Y; Y10; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249955; Y10T428/249958; Y10T428/249987; Y10T428/249991
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
44 words
A melamine resin foam comprising a foam body obtained by foaming a resin composition composed mainly of a melamine-formaldehyde condensate and a blowing agent, and hydrophobic component coated on said foam body, wherein said hydrophobic component is a silicone resin or a chloroprene rubber.
Claim 2
Dependent Claim
44 words
A melamine resin foam comprising a foam body obtained by foaming a resin composition composed mainly of a melamine-formaldehyde condensate and a blowing agent, and hydrophobic component coated on said foam body, wherein said hydrophobic component is a silicone resin or a chloroprene rubber.
Claim 3
Dependent Claim
16 words
A melamine resin foam according to claim 1, wherein the foam body is cured after foaming.
Claim 4
Dependent Claim
16 words
A melamine resin foam according to claim 1, wherein the foam body has substantially open cells.
Claim 5
Dependent Claim
24 words
A melamine resin foam according to claim 3, wherein the surfaces of the skeleton of the foam body is coated with a hydrophobic component.
Claim 6
Dependent Claim
24 words
A melamine resin foam according to claim 1, wherein the silicone resin is formed by coating with an aqueous emulsion of a silicone resin.
Claim 7
Dependent Claim
19 words
A melamine resin foam according to claim 1, wherein the chloroprene is formed by coating with a chloroprene latex.
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) | 1998-05-08 | 1998-11-07 | 1999-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-05-08 | 2002-11-07 | 2003-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-05-08 | 2006-11-07 | 2007-05-09 | $7700.00 | Window Closed / Lapsed |