US4388366A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insulation board
Assignee: Apache Building Products Co
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Filing: 1982-06-21
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Granted: 1983-06-14
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Expires: 2002-06-21
Abstract
Abstract An insulation board comprising a plastic foam layer which is covered by at least one facing sheet, the facing sheet comprising glass fibers bonded to each other by a bonding agent, the fibers and bonding agent being coated with a non-wicking agent, whereby although the fibrous facing sheet is porous to permit venting of gases and vapors, it is substantially liquid-repellant to prevent bleed through by various types of liquids.
Inventors
- 👤 Dennis W. Rosato
- 👤 Neil K. Lister
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:45
CPC Classifications
B; B32; B32B; B32B5/00; B32B5/18; E; E04; E04C; E04C2/00; E04C2/02; E04C2/10; E04C2/24; E04C2/243; B32B2315/00; B32B2315/08; B32B2315/085; B32B2331/00; B32B2331/04; B32B2395/00; Y; Y10; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249967; Y10T428/249969; Y10T428/249981; Y10T428/26; Y10T428/29; Y10T428/2913; Y10T428/298; Y10T428/31504; Y10T428/31551; Y10T428/31609; Y10T428/31612; Y10T442/00; Y10T442/10; Y10T442/184; Y10T442/191; Y10T442/193; Y10T442/60; Y10T442/647; Y10T442/652
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
59 words
An insulation board comprising a plastic foam layer bonded to at least one facing sheet, said facing sheet comprising glass fibers which are randomly dispersed in uniform fashion throughout the sheet, said fibers being bonded together by a bonding agent, and said fibers and bonding agent being coated by a non-wicking agent to provide a porous but liquid-repellant structure.
Claim 2
Dependent Claim
59 words
An insulation board comprising a plastic foam layer bonded to at least one facing sheet, said facing sheet comprising glass fibers which are randomly dispersed in uniform fashion throughout the sheet, said fibers being bonded together by a bonding agent, and said fibers and bonding agent being coated by a non-wicking agent to provide a porous but liquid-repellant structure.
Claim 3
Dependent Claim
20 words
The insulation board of claim 1 wherein the glass fibers constitute about 90 percent by volume of the facing sheet.
Claim 4
Dependent Claim
21 words
The insulation board of claim 1 wherein the facing sheet has a thickness of between about 4 to about 120 mils.
Claim 5
Dependent Claim
20 words
The insulation board of claim 1 wherein the facing sheet has a thickness of between about 7 to 30 mils.
Claim 6
Dependent Claim
30 words
The insulation board of claim 1 wherein the glass fibers have diameters of between about 3.75 to about 13.0 microns and lengths of between about 0.25 to about 1.0 inch.
Claim 7
Dependent Claim
22 words
The insulation board of claim 1 wherein the at least one facing sheet is bonded to each side of said plastic foam.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-06-13 | 1986-12-13 | 1987-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-06-13 | 1990-12-13 | 1991-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-06-13 | 1994-12-13 | 1995-06-14 | $7700.00 | Window Closed / Lapsed |