US4592941A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reinforced laminate of co-extruded film
Assignee: Reef Industries Inc
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Filing: 1985-03-01
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Granted: 1986-06-03
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Expires: 2005-03-01
Abstract
Abstract A durable, high strength, lightweight film laminate of two layers of three-ply film with a nonwoven filament for reinforcement and permanently flexible adhesive between the film layers. The nonwoven filament is in a reinforced laminate and is an excellent protective covering and packaging material because of its resistance to weather elements, tears and punctures.
Inventors
- 👤 Keith Emmons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:05
CPC Classifications
B; B32; B32B; B32B5/00; B32B5/02; B32B5/12; B32B27/00; B32B27/12; B32B27/32; B32B7/00; B32B7/04; B32B7/12; B29; B29C; B29C70/00; B29C70/68; B29C70/685; B29C70/687; B29K; B29K2023/00; B29K2023/04; B29K2023/06; B29K2023/10; B29K2023/12; B29K2105/00; B29K2105/06; B29K2105/08; B29K2105/10; B29K2105/101; B29K2105/108; B29K2105/20; B29K2105/206; B29L; B29L2009/00; B32B2262/00; B32B2262/02; B32B2262/0261; B32B2305/00; B32B2305/10; B32B2307/00; B32B2307/30; B32B2307/31; B32B2307/50; B32B2307/558; B32B2307/582; B32B2307/5825; B32B2307/70; B32B2307/724; B32B2307/7242; B32B2307/7246; B32B2323/00; B32B2323/04; B32B2323/046; B32B2439/00; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24058; Y10T428/24124; Y10T428/31504; Y10T428/31855
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
124 words
A reinforced laminate film comprising two thicknesses of co-extruded three ply film of a first film laminae and a second film laminae, nonwoven reinforcing filament laid out in a diamond grid, said nonwoven reinforcing filament grid is held between said first and said second film laminae by a pressure sensitive flexible adhesive layer which bonds said first and said second film laminae together, said co-exteuded three-ply film has two outer layers of linear low density polyethylene, and said co-extruded three-ply film has a middle layer that is by weight of said middle layer about 10% to about 25% linear low density polyethylene, about 14% to about 35% high density polyethylene, about 20% to about 50% polypropylene and about 5% to about 15% ethylene-propylene-diene rubber.
Claim 2
Dependent Claim
124 words
A reinforced laminate film comprising two thicknesses of co-extruded three ply film of a first film laminae and a second film laminae, nonwoven reinforcing filament laid out in a diamond grid, said nonwoven reinforcing filament grid is held between said first and said second film laminae by a pressure sensitive flexible adhesive layer which bonds said first and said second film laminae together, said co-exteuded three-ply film has two outer layers of linear low density polyethylene, and said co-extruded three-ply film has a middle layer that is by weight of said middle layer about 10% to about 25% linear low density polyethylene, about 14% to about 35% high density polyethylene, about 20% to about 50% polypropylene and about 5% to about 15% ethylene-propylene-diene rubber.
Claim 3
Dependent Claim
26 words
A reinforced laminate of claim 1 wherein at least one of said outer layers of said three-ply film have an effective amount of ultraviolet light stabilizer.
Claim 4
Dependent Claim
22 words
A reinforced laminate of claim 1 wherein said middle layer of said three-ply film has an effective amount of ultraviolet light stabilizer.
Claim 5
Dependent Claim
18 words
A reinforced laminate of claim 1 wherein said middle layer of said three-ply film contains a color additive.
Claim 6
Dependent Claim
20 words
A reinforced laminate of claim 1 wherein at least one outer layer of said three-ply film contains a color additive.
Claim 7
Dependent Claim
14 words
A reinforced laminate of claim 1 wherein said nonwoven reinforcing filament is nylon multifilament.
Claim 8
Dependent Claim
42 words
A reinforced laminate of claim 1 wherein said three-ply film comprises a middle layer of about 60% to 90% by weight of the total film and the two outer layers together comprise about 10% to about 40% of the total film weight.
Claim 9
Dependent Claim
22 words
A reinforced laminate of claim 1 wherein said three-ply film has a middle layer with an effective amount of a fire retardant.
Claim 10
Dependent Claim
141 words
A black reinforced laminate comprising; two thicknesses of co-extruded three-ply film of a first film laminae and a second film laminae, reinforcing multifilament with a Z twist laid out in a diamond grid, said reinforcing nylon multifilament grid is held by a pressure sensitive flexible adhesive layer coated in about two ounces for ten square feet of film, said co-extruded three-ply film having two outer layers of linear low density polyethylene with ultraviolet stabilizer, said co-extruded three-ply film having a middle layer made up by weight of about 18% linear low density polyethylene, about 28.5% high density polyethylene, about 40% polypropylene, about 10% ethylene-propylene-diene rubber and about 3.5% linear low density polyethylene with carbon black additive, and said middle layer is about 80% of the total film weight and the outer layers are about 10% each of the total film weight.
Claim 11
Dependent Claim
141 words
A black reinforced laminate comprising; two thicknesses of co-extruded three-ply film of a first film laminae and a second film laminae, reinforcing multifilament with a Z twist laid out in a diamond grid, said reinforcing nylon multifilament grid is held by a pressure sensitive flexible adhesive layer coated in about two ounces for ten square feet of film, said co-extruded three-ply film having two outer layers of linear low density polyethylene with ultraviolet stabilizer, said co-extruded three-ply film having a middle layer made up by weight of about 18% linear low density polyethylene, about 28.5% high density polyethylene, about 40% polypropylene, about 10% ethylene-propylene-diene rubber and about 3.5% linear low density polyethylene with carbon black additive, and said middle layer is about 80% of the total film weight and the outer layers are about 10% each of the total film weight.
Claim 12
Dependent Claim
132 words
A clear reinforced laminate comprising; two thicknesses of co-extruded three-ply film of a first film laminae and a second film laminae, nonwoven reinforcing filament laid out in a diamond grid, said nonwoven reinforcing filament grid is held between said first and said second film laminae by a pressure sensitive flexible adhesive layer which bonds said first and second film laminae together, said co-extruded three-ply film has two outer layers of linear low density polyethylene with an ultraviolet light stabilizer, said co-extruded three-ply film having a middle layer made up by weight of about 40% polypropylene, about 28.5% high density polyethylene, about 18% linear low density polyethylene, about 3.5% linear low density polyethylene with an ultraviolet light stabilizer, and about 10% ethylene-propylene-diene rubber, and said total film thickness is about 2.0±0.2 mils thick.
Claim 13
Dependent Claim
132 words
A clear reinforced laminate comprising; two thicknesses of co-extruded three-ply film of a first film laminae and a second film laminae, nonwoven reinforcing filament laid out in a diamond grid, said nonwoven reinforcing filament grid is held between said first and said second film laminae by a pressure sensitive flexible adhesive layer which bonds said first and second film laminae together, said co-extruded three-ply film has two outer layers of linear low density polyethylene with an ultraviolet light stabilizer, said co-extruded three-ply film having a middle layer made up by weight of about 40% polypropylene, about 28.5% high density polyethylene, about 18% linear low density polyethylene, about 3.5% linear low density polyethylene with an ultraviolet light stabilizer, and about 10% ethylene-propylene-diene rubber, and said total film thickness is about 2.0±0.2 mils thick.
Claim 14
Dependent Claim
139 words
A white reinforced laminate comprising; two thicknesses of co-extruded three-ply film of a first film laminae and a second film laminae, nonwoven reinforcing filament laid out in a diamond grid, said nonwoven reinforcing filament grid is held between said first and said second film laminae by a pressure sensitive flexible adhesive layer which bonds said first and second film laminae together, said co-extruded three-ply film has two outer layers of linear low density polyethylene with an ultraviolet light stabilizer, said co-extruded three-ply film having a middle layer made up by weight of about 40% polypropylene, about 28.5% high density polyethylene, about 7% linear low density polyethylene, about 10% ethylene-propylene-diene rubber, about 3.5% linear low density polyethylene with ultraviolet stabilizer, and about 11% low density polyethylene with titanium dioxide concentrate, and said total film thickness is about 2.0±0.2 mils thick.
Claim 15
Dependent Claim
139 words
A white reinforced laminate comprising; two thicknesses of co-extruded three-ply film of a first film laminae and a second film laminae, nonwoven reinforcing filament laid out in a diamond grid, said nonwoven reinforcing filament grid is held between said first and said second film laminae by a pressure sensitive flexible adhesive layer which bonds said first and second film laminae together, said co-extruded three-ply film has two outer layers of linear low density polyethylene with an ultraviolet light stabilizer, said co-extruded three-ply film having a middle layer made up by weight of about 40% polypropylene, about 28.5% high density polyethylene, about 7% linear low density polyethylene, about 10% ethylene-propylene-diene rubber, about 3.5% linear low density polyethylene with ultraviolet stabilizer, and about 11% low density polyethylene with titanium dioxide concentrate, and said total film thickness is about 2.0±0.2 mils thick.
Claim 16
Dependent Claim
134 words
A fire retardant reinforced laminate comprising; two thicknesses of co-extruded three-ply film of a first film laminae and a second film laminae, nonwoven reinforcing filament laid out in a diamond grid, said nonwoven reinforcing filament grid is held between said first and said second film laminae by a pressure sensitive flexible adhesive layer which bonds said first and second film laminae together, said co-extruded three-ply film has two outer layers of linear low density polyethylene with an ultraviolet light stabilizer, and said co-extruded three-ply film having a middle layer made up by weight of about 37% polypropylene, about 26% high density polyethylene, about 9.5% ethylene-propylene-diene rubber, about 3.5% linear low density polyethylene with an ultraviolet light stabilizer, and about 24% fire retardant additive of antimony trioxide, organic bromide in a linear low density polyethylene.
Claim 17
Dependent Claim
134 words
A fire retardant reinforced laminate comprising; two thicknesses of co-extruded three-ply film of a first film laminae and a second film laminae, nonwoven reinforcing filament laid out in a diamond grid, said nonwoven reinforcing filament grid is held between said first and said second film laminae by a pressure sensitive flexible adhesive layer which bonds said first and second film laminae together, said co-extruded three-ply film has two outer layers of linear low density polyethylene with an ultraviolet light stabilizer, and said co-extruded three-ply film having a middle layer made up by weight of about 37% polypropylene, about 26% high density polyethylene, about 9.5% ethylene-propylene-diene rubber, about 3.5% linear low density polyethylene with an ultraviolet light stabilizer, and about 24% fire retardant additive of antimony trioxide, organic bromide in a linear low density polyethylene.
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) | 1989-06-02 | 1989-12-02 | 1990-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-06-02 | 1993-12-02 | 1994-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-06-02 | 1997-12-02 | 1998-06-03 | $7700.00 | Window Closed / Lapsed |