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US4323613A Expired / Lapsed US ⏱️ 0.0 years remaining

Laminate material

Assignee: Individual
•
Filing: 1980-01-14
•
Granted: 1982-04-06
•
Expires: 2000-01-14
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Abstract

Abstract A substantially light-impervious laminate material is provided. In one embodiment, the material includes a first relatively light-reflective (white) polyvinyl chloride sheet, an open scrim sheet, a second relatively light-reflective (white) polyvinyl chloride sheet, and a relatively light-absorbtive (black) bonding agent permeating the scrim sheet and binding together the first sheet, the second sheet and the scrim sheet. Preferably this bonding agent contains aluminum pigment and carbon black pigment. A method of continuously making this laminate material is also provided. The laminate is made by twice coating the underside of the top laminate sheet with the bonding agent, pressing the scrim sheet against the bonding agent and top sheet underside, stripping the scrim sheet from the top sheet underside, and re-pressing the scrim sheet against the top sheet underside. Next, the top sheet, bonding agent and scrim sheet are heated, and a hot bottom sheet is pressed against the hot scrim sheet. The laminate is then cooled. The finished product can be produced at relatively low cost, yet the occurrence of "pinholes", "slits" and other imperfections is discouraged.

Inventors

  • 👤 Dennis Snyder

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 02:22
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/12; B32B27/30; B32B27/304; B32B7/00; B32B7/04; B32B7/12; B32B2307/00; B32B2307/40; B32B2307/416; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24058; Y10T428/24074; Y10T428/24091; Y10T428/24099; Y10T428/24107; Y10T428/29; Y10T428/2982; Y10T442/00; Y10T442/10; Y10T442/102; Y10T442/164

Claims Analysis

Total Claims: 15
Claim 1
Independent Claim 48 words
A substantially light-impervious laminate material comprising the combination of a first light-reflective polyvinyl chloride sheet, an open scrim sheet, a second light-reflective polyvinyl chloride sheet, and a light-absorptive pigmentary bonding agent permeating the scrim sheet and binding together the first sheet, the second sheet and the scrim sheet.
Claim 2
Dependent Claim 48 words
A substantially light-impervious laminate material comprising the combination of a first light-reflective polyvinyl chloride sheet, an open scrim sheet, a second light-reflective polyvinyl chloride sheet, and a light-absorptive pigmentary bonding agent permeating the scrim sheet and binding together the first sheet, the second sheet and the scrim sheet.
Claim 3
Dependent Claim 27 words
A laminate material according to claim 1 wherein at least one of said first and second sheets is light-colored, and wherein said pigmentary bonding agent is dark-colored.
Claim 4
Dependent Claim 21 words
A laminate material according to claim 2 wherein at least one of said first and second sheets is white in color.
Claim 5
Dependent Claim 17 words
A laminate material according to claim 1 wherein both of said first and second sheets are light-colored.
Claim 6
Dependent Claim 19 words
A laminate material according to claim 2 wherein both of said first and second sheets are white in color.
Claim 7
Dependent Claim 24 words
A laminate material according to claim 1 wherein each of said first and second sheets have a thickness on the order of 3 mils.
Claim 8
Dependent Claim 17 words
A laminate material according to claim 1 wherein said scrim sheet comprises a network of woven fibers.
Claim 9
Dependent Claim 15 words
A laminate material according to claim 1 or 2 wherein said bonding agent is plastisol.
Claim 10
Dependent Claim 15 words
A laminate material according to claim 4 wherein said pigmentary bonding agent includes carbon black.
Claim 11
Dependent Claim 18 words
A laminate material according to claim 4 wherein said pigmentary bonding agent contains aluminum pigment and carbon black.
Claim 12
Dependent Claim 48 words
A light-impervious laminate material comprising a first and second light-reflective polyvinyl chloride sheet and an open scrim sheet therebetween, said scrim sheet being bonded between the polyvinyl chloride sheets and said sheets being bonded together by a layer of a light-absorptive pigmentary bonding agent permeating said scrim sheet.
Claim 13
Dependent Claim 48 words
A light-impervious laminate material comprising a first and second light-reflective polyvinyl chloride sheet and an open scrim sheet therebetween, said scrim sheet being bonded between the polyvinyl chloride sheets and said sheets being bonded together by a layer of a light-absorptive pigmentary bonding agent permeating said scrim sheet.
Claim 14
Dependent Claim 15 words
A laminate material according to claim 11 wherein said pigmentary bonding agent contains carbon black.
Claim 15
Dependent Claim 14 words
A laminate material according to claim 11 or 12 wherein said pigment contains aluminum.

References Cited (Backward Citations)

US2281635A Cited
US2742391A Cited
US2642404A Cited
US3222237A Cited
US3647607A Cited
US4124431A Cited
US4103053A Cited
US4110497A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1985-04-05 1985-10-05 1986-04-06 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1989-04-05 1989-10-05 1990-04-06 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1993-04-05 1993-10-05 1994-04-06 $7700.00 Window Closed / Lapsed

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