US3874983A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminate construction
Assignee: Dow Chemical Co
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Filing: 1973-12-17
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Granted: 1975-04-01
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Expires: 1993-12-17
Abstract
Abstract Structures are prepared using foam strips having a laminate on at least one surface of the foam, the laminate is adhesively bonded to the surface and folded outwardly about 180* at each edge. As strips are bonded together, one edge of the laminate is unfolded to overlap and cover the adjacent edge of an adjacent laminate. Improved bond reliability is obtained as well as ease of handling.
Inventors
- 👤 Ii Robert A Hay
- 👤 Bliek John A De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:58
CPC Classifications
B; B32; B32B; B32B15/00; B32B15/04; B32B15/08; E; E04; E04B; E04B1/00; E04B1/38; E04B1/61; E04B1/6108; B32B37/00; B32B37/04; B32B7/00; B32B7/04; B32B7/12; E04C; E04C2/00; E04C2/02; E04C2/26; E04C2/284; E04C2/292; B32B2311/00; B32B2311/12; B32B2311/24; B32B2325/00; B32B2375/00; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1051; Y10T428/00; Y10T428/24; Y10T428/2419; Y10T428/24215; Y10T428/24231; Y10T428/24802; Y10T428/24826; Y10T428/249921; Y10T428/249953; Y10T428/249982; Y10T428/249987; Y10T428/24999; Y10T428/31504; Y10T428/31678; Y10T428/31692
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
184 words
IN A PROCESS FOR THE PREPARATION OF A STRUCTURE WHEREIN A FOAM PLASTIC/METAL LAMINATE BODY IS PROVIDED, THE BODY HAVING AN ELONGATE GENERALLY REACTANGULAR CONFIGURATION AND A METAL LAYER ADHERED TO AT LEAST ONE SURFACE, THE METAL LAMINATE HAVING AT LEAST A FIRST EDGE AND A SECOND EDGE WHEREIN THE SECOND EDGE OF THE METAL IS NOT ADHERED TO THE FOAM BUT IS FOLDED BACK UPON ITSELF THE ELONGATE FOAM/METAL LAMINATE BODY BEING APPLIED TO A GENERALLY LIKE FOAM/METAL LAMINATE BODY WHEREIN THE SECOND EDGE OF THE METAL LAYER IS DISPOSED ADJACENT THE FIRST EDGE OF THE PREVIOUSLY DEPOSITED METAL LAYER OF A FOAM PLASTIC/METAL LAMINATE AND THE PORTION OF THE SECOND EDGE OF THE METAL LAYER UNFOLDED AND JOINED TO THE ADJACENT METAL LAYER IN THE REGION OF THE FIRST EDGE OF THE ADJACENT METAL LAYER THE IMPROVEMENT WHICH COMPRISES FOLDING A PORTION OF THE FIRST EDGE OF THE LAYER OF THE LAMINATE ABOUT 180* IN A DIRECTION AWAY FROM THE FOAM PORTION OF THE FOAM PLASTIC/METAL LAMINATE, THE FOLD IN THE FIRST EDGE BEING SUBSTANTIALLY NARROWER THAN THAT IN THE SECOND EDGE.
Claim 2
Dependent Claim
184 words
IN A PROCESS FOR THE PREPARATION OF A STRUCTURE WHEREIN A FOAM PLASTIC/METAL LAMINATE BODY IS PROVIDED, THE BODY HAVING AN ELONGATE GENERALLY REACTANGULAR CONFIGURATION AND A METAL LAYER ADHERED TO AT LEAST ONE SURFACE, THE METAL LAMINATE HAVING AT LEAST A FIRST EDGE AND A SECOND EDGE WHEREIN THE SECOND EDGE OF THE METAL IS NOT ADHERED TO THE FOAM BUT IS FOLDED BACK UPON ITSELF THE ELONGATE FOAM/METAL LAMINATE BODY BEING APPLIED TO A GENERALLY LIKE FOAM/METAL LAMINATE BODY WHEREIN THE SECOND EDGE OF THE METAL LAYER IS DISPOSED ADJACENT THE FIRST EDGE OF THE PREVIOUSLY DEPOSITED METAL LAYER OF A FOAM PLASTIC/METAL LAMINATE AND THE PORTION OF THE SECOND EDGE OF THE METAL LAYER UNFOLDED AND JOINED TO THE ADJACENT METAL LAYER IN THE REGION OF THE FIRST EDGE OF THE ADJACENT METAL LAYER THE IMPROVEMENT WHICH COMPRISES FOLDING A PORTION OF THE FIRST EDGE OF THE LAYER OF THE LAMINATE ABOUT 180* IN A DIRECTION AWAY FROM THE FOAM PORTION OF THE FOAM PLASTIC/METAL LAMINATE, THE FOLD IN THE FIRST EDGE BEING SUBSTANTIALLY NARROWER THAN THAT IN THE SECOND EDGE.
Claim 3
Dependent Claim
12 words
The method of claim 1 wherein joining is accomplished by heat sealing.
Claim 4
Dependent Claim
12 words
The method of claim 1 wherein joining is accomplished by settable adhesives.
Claim 5
Dependent Claim
17 words
The method of claim 1 wherein the foam is a polystyrene foam and the metal is aluminum.
Claim 6
Dependent Claim
158 words
AN IMPROVED FOAM/METAL LAMINATE SUITABLE FOR THE PREPARATION OF WALLED STRUCTURES, THE FOAM/METAL LAMINATE COMPRISING A GENERALLY RECTANGULAR ELONGATE FOAM PLASTIC BODY HAVING A GENERALLY RECTANGULAR CROSS-SECTIONAL CONFIGURATION, A METAL LAYER COMPRISING A METAL SHEET HAVING ON ONE SURFACE THEREOF AN ADHESIVE, A MAJOR PORTION OF THE ADHESIVE ADHERED TO ONE FACE OF THE FOAM PLASTIC MEMBER, THE ELONGATE METAL STRIP HAVING A FIRST EDGE AND A SECOND EDGE, THE FIRST AND SECOND EDGED OF THE METAL SHEET EXTENDING IN THE DIRECTION OF THE MAJOR DIMENSION OF THE ELONGATE BODY, EACH OF THE EDGES BEING FOLDED ABOUT 180* INWARDLY, THEREBY DISPOSING REMOTE FROM THE FOAM A PORTION OF THE ADHESIVE ADJACENT THE FIRST AND SECOND EDGES, THE WIDTH OF THE FOLD AT THE FIRST EDGE BEING SUBSTANTIALLY LESS THAN THE WIDTH OF THE FOLD AT THE SECOND EDGE AND THE TOTAL WIDTH OF THE METAL BEING GREATER THAN THE WIDTH OF THE ADJACENT PORTION OF THE FOAM BODY.
Claim 7
Dependent Claim
158 words
AN IMPROVED FOAM/METAL LAMINATE SUITABLE FOR THE PREPARATION OF WALLED STRUCTURES, THE FOAM/METAL LAMINATE COMPRISING A GENERALLY RECTANGULAR ELONGATE FOAM PLASTIC BODY HAVING A GENERALLY RECTANGULAR CROSS-SECTIONAL CONFIGURATION, A METAL LAYER COMPRISING A METAL SHEET HAVING ON ONE SURFACE THEREOF AN ADHESIVE, A MAJOR PORTION OF THE ADHESIVE ADHERED TO ONE FACE OF THE FOAM PLASTIC MEMBER, THE ELONGATE METAL STRIP HAVING A FIRST EDGE AND A SECOND EDGE, THE FIRST AND SECOND EDGED OF THE METAL SHEET EXTENDING IN THE DIRECTION OF THE MAJOR DIMENSION OF THE ELONGATE BODY, EACH OF THE EDGES BEING FOLDED ABOUT 180* INWARDLY, THEREBY DISPOSING REMOTE FROM THE FOAM A PORTION OF THE ADHESIVE ADJACENT THE FIRST AND SECOND EDGES, THE WIDTH OF THE FOLD AT THE FIRST EDGE BEING SUBSTANTIALLY LESS THAN THE WIDTH OF THE FOLD AT THE SECOND EDGE AND THE TOTAL WIDTH OF THE METAL BEING GREATER THAN THE WIDTH OF THE ADJACENT PORTION OF THE FOAM BODY.
Claim 8
Dependent Claim
13 words
The laminate of claim 5 wherein the adhesive is a heat activable adhesive.
Claim 9
Dependent Claim
17 words
The laminate of claim 5 wherein the foam is a polystyrene foam and the metal is aluminum.
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) | 1978-03-31 | 1978-09-30 | 1979-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-31 | 1982-09-30 | 1983-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-31 | 1986-09-30 | 1987-04-01 | $7700.00 | Window Closed / Lapsed |