US4500596A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyurethane foamed in-situ against skin terpolymer comprising ethylene and propylene
Assignee: Individual
•
Filing: 1983-07-18
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Granted: 1985-02-19
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Expires: 2003-07-18
Abstract
Abstract Laminate compositions composed of polyurethane between and bonded to a substrate and a membrane of polyethylene, polypropylene or copolymer of ethylene and propylene modified to adhere to polyurethane for use as an insitu construction material. For example, chlorinated polyethylene, chlorosulfonated polyethylene or ethylene propylene diene monomer 20 to 50 mil film bonded to a polyurethane which was foamed in place over a corrugated steel roof to form a water tight roof construction.
Inventors
- 👤 Jimmy D. Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:02
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/06; B32B27/065; B32B5/00; B32B5/18; B32B5/20; B32B11/00; B32B11/04; B32B11/048; B32B13/00; B32B13/04; B32B13/045; B32B15/00; B32B15/04; B32B15/046; B32B15/18; B32B15/20; B32B21/00; B32B21/02; B32B21/04; B32B21/047; B32B27/32; B32B27/322; B32B3/00; B32B3/26; B32B3/28; B32B9/00; B32B9/002; B32B9/04; B32B9/046; E; E04; E04B; E04B1/00; E04B1/62; E04B1/66; E04B1/665; E04D; E04D7/00; B32B2266/00; B32B2266/02; B32B2266/0214; B32B2266/0278; B32B2323/00; B32B2323/16; B32B2419/00; B32B2419/06; Y; Y10; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249982; Y10T428/249984; Y10T428/249987; Y10T428/24999; Y10T428/249991; Y10T428/249992; Y10T428/249993
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
97 words
A laminate composition produced by the process of (a) dispensing a continuous sheet of polymeric material comprising a terpolymer of ethylene and propylene as the principal monomers and a monomer of 1,4-hexadiene, norbornene, dicyclopentadiene or 1,5-cyclooctadiene, which is spaced away from and substantially parallel to a substrate, said substrate being part of a building structure and (b) dispensing a foamable polyurethane into the enclosure formed by said substrate and said continuous polymeric material whereby said polyurethane foams to fill said enclosure, contacting and bonding to said substrate and said continuous polymeric material to form a monolithic structure.
Claim 2
Dependent Claim
97 words
A laminate composition produced by the process of (a) dispensing a continuous sheet of polymeric material comprising a terpolymer of ethylene and propylene as the principal monomers and a monomer of 1,4-hexadiene, norbornene, dicyclopentadiene or 1,5-cyclooctadiene, which is spaced away from and substantially parallel to a substrate, said substrate being part of a building structure and (b) dispensing a foamable polyurethane into the enclosure formed by said substrate and said continuous polymeric material whereby said polyurethane foams to fill said enclosure, contacting and bonding to said substrate and said continuous polymeric material to form a monolithic structure.
Claim 3
Dependent Claim
15 words
The laminate composition according to claim 1 wherein said terpolymer comprises ethylene, propylene and dicyclopenadiene.
Claim 4
Dependent Claim
15 words
The laminate composition according to claim 1 wherein said terpolymer comprises ethylene, propylene and 1,5-cyclooctadiene.
Claim 5
Dependent Claim
15 words
The laminate composition according to claim 1 wherein said terpolymer comprises ethylene, propylene and norbornene.
Claim 6
Dependent Claim
15 words
The laminate composition according to claim 1 wherein said terpolymer comprises ethylene, propylene and 1,4-hexadiene.
Claim 7
Dependent Claim
22 words
The laminate composition according to claim 1 wherein said substrate is wood, steel, concrete, aluminum, particle board, copper, asphaltic material, or stone.
Claim 8
Dependent Claim
16 words
The laminate composition according to claim 1 wherein said substrate is a portion of a roof.
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) | 1988-02-19 | 1988-08-20 | 1989-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-02-19 | 1992-08-20 | 1993-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-02-19 | 1996-08-20 | 1997-02-19 | $7700.00 | Window Closed / Lapsed |