US4199390A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Embossing and laminating process
Assignee: Individual
•
Filing: 1975-09-19
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Granted: 1980-04-22
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Expires: 1995-09-19
Abstract
Abstract A method of making a composite product having a preformed, self-sustaining pliable skin sheet and a preformed non-rigid void containing, low density plastic layer which comprises: (1) establishing a layer of said low density plastic, (2) applying to at least one side a liquid sprayable curative, (3) next applying to the same said side thereof a liquid sprayable polymer which together with said curative is reactive at elevated temperature to form a tenacious, essentially non-porous adhesive which bonds to both said sheet and said layer, (4) next contacting said skin sheet with said side of the low density plastic layer, (5) curing said polymer at elevated temperature whereby said skin sheet is adhered to said layer.
Inventors
- 👤 Stephen L. Pollard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:52
CPC Classifications
B; B29; B29C; B29C59/00; B29C59/02; B29C59/026; B32; B32B; B32B37/00; B32B37/12; B29C65/00; B29C65/02; B29C65/18; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/40; B29C66/41; B29C66/43; B29C66/436; B29C66/70; B29C66/72; B29C66/727; B29C66/73; B29C66/739; B29C66/7394; B29C66/80; B29C66/82; B29C66/824; B29C66/8242; B29C66/83; B29C66/832; B29C66/8322; B29C66/834; B29C66/8341; B29C66/83411; B32B38/00; B32B38/06; B32B5/00; B32B5/18; B32B7/00; B32B7/04; B32B7/12; B29C66/71; B29C66/822; B29C66/8223; B32B2266/00; B32B2266/02; B32B2266/0214; B32B2266/0278; B32B2305/00; B32B2305/02; B32B2305/022; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1007; Y10T156/1023; Y10T156/1039; Y10T428/00; Y10T428/24; Y10T428/24479; Y10T428/24496; Y10T428/24504
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
149 words
A method of making a composite product having a preformed, self-sustaining pliable non-void containing skin sheet and a preformed non-rigid void containing, low density plastic layer which comprises: (1) establishing a layer of said low density plastic, (2) spraying on at least one side of liquid sprayable curative to yield a wetted surface on said low density plastic, (3) next spraying on said wet surface of the low density plastic a liquid sprayable polymer to wet the surface of the low density plastic with said polymer, said polymer being one which together with said curative is reactive at elevated temperature to form a tenacious, essentially non-porous adhesive which bonds to both said sheet and said layer, (4) next contacting said skin sheet with said wetted surface of said low density plastic layer, and (5) curing said polymer at elevated temperature whereby said skin sheet is adhered to said layer.
Claim 2
Independent Claim
149 words
A method of making a composite product having a preformed, self-sustaining pliable non-void containing skin sheet and a preformed non-rigid void containing, low density plastic layer which comprises: (1) establishing a layer of said low density plastic, (2) spraying on at least one side of liquid sprayable curative to yield a wetted surface on said low density plastic, (3) next spraying on said wet surface of the low density plastic a liquid sprayable polymer to wet the surface of the low density plastic with said polymer, said polymer being one which together with said curative is reactive at elevated temperature to form a tenacious, essentially non-porous adhesive which bonds to both said sheet and said layer, (4) next contacting said skin sheet with said wetted surface of said low density plastic layer, and (5) curing said polymer at elevated temperature whereby said skin sheet is adhered to said layer.
Claim 3
Dependent Claim
8 words
The product of the method of claim 1.
Claim 4
Dependent Claim
12 words
The method of claim 1 wherein the low-density plastic is polyurethane foam.
Claim 5
Dependent Claim
18 words
The method of claim 1 wherein said polymer and said curative are essentially non-reactive at about room temperature.
Claim 6
Dependent Claim
60 words
The method of claim 1 wherein said curing is carried out such that embossing occurs in selective areas under the influence of externally applied mechanical pressure and laminating occurs in the remaining areas under a lesser pressure which is the self-generated pressure of the trapped gases and vapors generated by heating said polymer and said curative to their interreactive temperature.
Claim 7
Dependent Claim
23 words
The method of claim 1 wherein said polymer is a polyurethane having functional groups of complementary reactivity with functional groups on said curative.
Claim 8
Dependent Claim
37 words
The method of claim 1 wherein the spraying steps are carried out in a closure which contains any fumes or vapors and said fumes or vapors are removed from said closure in a controlled and channeled manner.
Claim 9
Dependent Claim
26 words
The method of claim 1 wherein said curative is an aqueous solution and said laminating occurs under the vapor pressure of water at the curing temperature.
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) | 1983-04-22 | 1983-10-22 | 1984-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-04-22 | 1987-10-22 | 1988-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-04-22 | 1991-10-22 | 1992-04-22 | $7700.00 | Window Closed / Lapsed |