Patent US6171984B1 successfully refreshed from Google Patents.
US6171984B1
Expired / Lapsed
US
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Fiber glass based geosynthetic material
Assignee: PPG Industries Ohio Inc
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Filing: 1997-12-03
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Granted: 2001-01-09
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Expires: 2017-12-03
Abstract
Abstract This invention relates to generally to geosynthetic materials which can be used for earthen reinforcement, and more particularly to a novel geosynthetic material exhibiting less strain under an initial tensile load then presently available geosynthetic materials. The novel geosynthetic material includes a first plurality of spaced-apart generally parallel fiber strands, a second plurality of spaced-apart generally parallel fiber strands positioned adjacent to and forming a plurality of intersections with at least a portion of the first plurality of strands, an organic tying member fixedly connecting portions of fiber strands of the first plurality of fiber strands with intersecting corresponding portions of the second plurality of fiber, and a bonding agent adhering predetermined regions of selected fiber strands of the first plurality of fiber strands with predetermined regions of selected fiber strands of the second plurality of fiber strands, wherein at least a portion of the fiber strands selected from the group consisting of the first plurality of fiber strands, the second plurality of fiber strands and combinations thereof comprise glass fibers. The present invention also relates to a novel geosynthetic composite including the novel geosynthetic material in combination with a second geosynthetic material, e.g. a geotextile fabric or geomembrane. The present invention also relates to a novel reinforced soil composite which includes a soil material in combination with the novel geosynthetic material of the present invention.
Inventors
- 👤 John N. Paulson
- 👤 Mikhail M. Girgis
- 👤 Jeffrey A. Neubauer
- 👤 Narasimhan Raghupathi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 00:20
CPC Classifications
D; D04; D04B; D04B21/00; D04B21/10; D04B21/12; D03; D03D; D03D13/00; D03D13/006; D03D15/00; D03D15/20; D03D15/242; D03D15/267; D04B21/14; D04B21/16; D04B21/165; D04B39/00; D04B39/06; D04H; D04H3/00; D04H3/08; D04H3/12; D10; D10B; D10B2403/00; D10B2403/02; D10B2403/024; D10B2403/0241; D10B2403/02411; D10B2403/02412; D10B2505/00; D10B2505/20; D10B2505/204; Y; Y10; Y10T; Y10T442/00; Y10T442/60; Y10T442/603; Y10T442/604; Y10T442/643; Y10T442/644; Y10T442/659; Y10T442/666; Y10T442/667; Y10T442/67
Claims Analysis
Total Claims: 52
Claim 1
Independent Claim
318 words
A geosynthetic material for reinforcing a soil material to form a reinforced soil composite, the geosynthetic material comprising: (a) a first plurality of spaced-apart generally parallel fiber strands, wherein the first plurality of fiber strands includes fibers coated with an essentially dried residue of a first sizing composition and a first base coating composition comprising film-forming materials applied over the first sizing composition such that at least a portion of the first plurality of fiber strands are impregnated with the first base coating composition, and further wherein at least a portion of the first plurality of fiber strands comprises glass fibers; (b) a second plurality of spaced-apart generally parallel fiber strands positioned adjacent to and forming a plurality of intersections with at least a portion of the first plurality of strands, wherein the second plurality of fiber strands includes fibers coated with an essentially dried residue of a second sizing composition and a second base coating composition comprising film-forming materials applied over the second sizing composition such that at least a portion of the second plurality of fiber strands are impregnated with the second base coating composition, and further wherein at least a portion of the second plurality of fiber strands comprise glass fibers; (c) a first tying member fixedly connecting portions of fiber strands of the first plurality of fiber strands with intersecting corresponding portions of the second plurality of fiber strands; (d) a second tying member fixedly connecting at least two adjacent generally parallel spaced fiber strands of the first plurality of fiber strands; and (e) a bonding agent adhering predetermined regions of selected fiber strands of the first plurality of fiber strands with predetermined regions of selected fiber strands of the second plurality of fiber strands, wherein the bonding agent is applied over selected portions of the first and second base coating compositions, wherein the geosynthetic material resists chemical and biological attack from soil material.
Claim 2
Dependent Claim
318 words
A geosynthetic material for reinforcing a soil material to form a reinforced soil composite, the geosynthetic material comprising: (a) a first plurality of spaced-apart generally parallel fiber strands, wherein the first plurality of fiber strands includes fibers coated with an essentially dried residue of a first sizing composition and a first base coating composition comprising film-forming materials applied over the first sizing composition such that at least a portion of the first plurality of fiber strands are impregnated with the first base coating composition, and further wherein at least a portion of the first plurality of fiber strands comprises glass fibers; (b) a second plurality of spaced-apart generally parallel fiber strands positioned adjacent to and forming a plurality of intersections with at least a portion of the first plurality of strands, wherein the second plurality of fiber strands includes fibers coated with an essentially dried residue of a second sizing composition and a second base coating composition comprising film-forming materials applied over the second sizing composition such that at least a portion of the second plurality of fiber strands are impregnated with the second base coating composition, and further wherein at least a portion of the second plurality of fiber strands comprise glass fibers; (c) a first tying member fixedly connecting portions of fiber strands of the first plurality of fiber strands with intersecting corresponding portions of the second plurality of fiber strands; (d) a second tying member fixedly connecting at least two adjacent generally parallel spaced fiber strands of the first plurality of fiber strands; and (e) a bonding agent adhering predetermined regions of selected fiber strands of the first plurality of fiber strands with predetermined regions of selected fiber strands of the second plurality of fiber strands, wherein the bonding agent is applied over selected portions of the first and second base coating compositions, wherein the geosynthetic material resists chemical and biological attack from soil material.
Claim 3
Dependent Claim
22 words
The geosynthetic material according to claim 1 , herein the fiber strands of the first plurality of fiber strands comprise glass fibers.
Claim 4
Dependent Claim
37 words
The geosynthetic material according to claim 2 , wherein the fiber strands of the second plurality of fiber strands comprise fibers formed from materials selected from the group consisting of natural materials, thermoplastic materials and combinations thereof.
Claim 5
Dependent Claim
44 words
The geosynthetic material according to claim 1 , wherein at least a portion of the fiber strands of the first plurality of fiber strands comprise fibers formed from materials selected from the group consisting of inorganic materials, natural materials, thermoplastic materials and combinations thereof.
Claim 6
Dependent Claim
43 words
The geosynthetic material according to claim 4 , wherein the thermoplastic materials are selected from the group consisting of polyolefins, polyamides, thermoplastic polyurethanes, thermoplastic polyesters, acrylic polymers, vinyl polymers, acetals, polyaryl sulfones, polyether sulfones, polyimides, polyetherketones, polyphenylene oxides, polyphenylene sulfides and mixtures thereof.
Claim 7
Dependent Claim
29 words
The geosynthetic material according to claim 5 , wherein the fiber strands of the first plurality of fiber strands comprise fibers formed from a thermoplastic material which is polyester.
Claim 8
Dependent Claim
21 words
The geosynthetic material according to claim 1 , wherein the film-forming material of the base coating composition comprises an acrylic polymer.
Claim 9
Dependent Claim
22 words
The geosynthetic material according to claim 1 , wherein the fiber strands of the first plurality of fiber strands are generally coplanar.
Claim 10
Dependent Claim
51 words
The geosynthetic material according to claim 1 , wherein spacing between adjacent fiber strands of at least one portion of the fiber strands of the first plurality of fiber strands is different from spacing between adjacent strands of another portion of the fiber strands of the first plurality of fiber strands.
Claim 11
Dependent Claim
22 words
The geosynthetic material according to claim 1 , wherein the fiber strands of the second plurality of fiber strands comprise glass fibers.
Claim 12
Dependent Claim
44 words
The geosynthetic material according to claim 1 , wherein at least a portion of the fiber strands of the second plurality of fiber strands comprise fibers formed from materials selected from the group consisting of inorganic materials, natural materials, thermoplastic materials and combinations thereof.
Claim 13
Dependent Claim
43 words
The geosynthetic material according to claim 11 , wherein the thermoplastic materials are selected from the group consisting of polyolefins, polyamides, thermoplastic polyurethanes, thermoplastic polyesters, acrylic polymers, vinyl polymers, acetals, polyaryl sulfones, polyether sulfones, polyimides, polyetherketones, polyphenylene oxides, polyphenylene sulfides and mixtures thereof.
Claim 14
Dependent Claim
29 words
The geosynthetic material according to claim 12 , wherein the fiber strands of the second plurality of fiber strands comprise fibers formed from a thermoplastic material which is polyester.
Claim 15
Dependent Claim
21 words
The geosynthetic material according to claim 1 , wherein the film-forming material of the base coating composition comprises an acrylic polymer.
Claim 16
Dependent Claim
22 words
The geosynthetic material according to claim 1 , wherein the fiber strands of the second plurality of fiber strands are generally coplanar.
Claim 17
Dependent Claim
51 words
The geosynthetic material according to claim 1 , wherein spacing between adjacent fiber strands of at least one portion of the fiber strands of the second plurality of fiber strands is different from spacing between adjacent strands of another portion of the fiber strands of the second plurality of fiber strands.
Claim 18
Dependent Claim
40 words
The geosynthetic material according to claim 1 , wherein at least a portion of the fiber strands of the first plurality of fiber strands and a portion of the fiber strands of the second plurality of fiber strands are interwoven.
Claim 19
Dependent Claim
33 words
The geosynthetic material according to claim 1 , wherein the fiber strands of the first plurality of fiber strands and the fiber strands of the second plurality of fiber strands are not interwoven.
Claim 20
Dependent Claim
35 words
The geosynthetic material according to claim 1 , wherein the first tying member is formed from a material selected from the group consisting of inorganic materials, natural materials, thermoplastic materials, thermosetting materials and combinations thereof.
Claim 21
Dependent Claim
22 words
The geosynthetic material according to claim 19 , wherein the first tying member is formed from a thermoplastic material which is polyester.
Claim 22
Dependent Claim
35 words
The geosynthetic material according to claim 1 , wherein the second tying member is formed from a material selected from the group consisting of inorganic materials, natural materials, thermoplastic materials, thermosetting materials and combinations thereof.
Claim 23
Dependent Claim
22 words
The geosynthetic material according to claim 21 , wherein the second tying member is formed from a thermoplastic material which is polyester.
Claim 24
Dependent Claim
26 words
The geosynthetic material according to claim 1 , herein the first tying member and the second tying member are adjacent portions of a single tying member.
Claim 25
Dependent Claim
33 words
The geosynthetic material according to claim 1 , herein the second tying member fixedly connects from 2 to 10 adjacent generally parallel spaced fiber strands selected from the first plurality of fiber strands.
Claim 26
Dependent Claim
16 words
The geosynthetic material according to claim 1 , wherein the bonding agent comprises a thermoplastic material.
Claim 27
Dependent Claim
47 words
The geosynthetic material according to claim 1 , wherein the bonding agent and the tying member fixedly connect a fiber strand of the first plurality of fiber strands with an intersecting fiber strand of the second plurality of fiber strands in the region of an intersection thereof.
Claim 28
Dependent Claim
49 words
The geosynthetic material according to claim 1 , wherein the maximum strain along an axis parallel to the first plurality of fiber strands ranges from about 2% to about 4% at rupture of all of the first plurality of fiber strands under a tensile load applied along said axis.
Claim 29
Dependent Claim
177 words
A geosynthetic material for reinforcing a soil material to form a reinforced soil composite, the geosynthetic material comprising: (a) a first plurality of spaced-apart generally parallel glass fiber strands; (b) a second plurality of spaced-apart generally parallel glass fiber strands positioned adjacent to and forming a plurality of intersections with at least a portion of the first plurality of strands; (c) a polyester tying member fixedly connecting portions of fiber strands of the first plurality of fiber strands with intersecting corresponding portions of the second plurality of fiber and fixedly connecting from about 2 to 10 adjacent generally parallel spaced fiber strands of the first plurality of fiber strands; and (d) a bonding agent comprising polyvinyl chloride adhering predetermined regions of selected fiber strands of the first plurality of fiber strands with predetermined regions of selected fiber strands of the second plurality of fiber strands; wherein at least a portion of the fiber strands selected the group consisting of the first plurality of fiber strands, the second plurality of fiber strands and combinations thereof comprise glass fibers.
Claim 30
Dependent Claim
177 words
A geosynthetic material for reinforcing a soil material to form a reinforced soil composite, the geosynthetic material comprising: (a) a first plurality of spaced-apart generally parallel glass fiber strands; (b) a second plurality of spaced-apart generally parallel glass fiber strands positioned adjacent to and forming a plurality of intersections with at least a portion of the first plurality of strands; (c) a polyester tying member fixedly connecting portions of fiber strands of the first plurality of fiber strands with intersecting corresponding portions of the second plurality of fiber and fixedly connecting from about 2 to 10 adjacent generally parallel spaced fiber strands of the first plurality of fiber strands; and (d) a bonding agent comprising polyvinyl chloride adhering predetermined regions of selected fiber strands of the first plurality of fiber strands with predetermined regions of selected fiber strands of the second plurality of fiber strands; wherein at least a portion of the fiber strands selected the group consisting of the first plurality of fiber strands, the second plurality of fiber strands and combinations thereof comprise glass fibers.
Claim 31
Dependent Claim
204 words
A geosynthetic composite comprising: (a) first geosynthetic material comprising: (i) a first plurality of spaced-apart generally parallel fiber strands; (ii) a second plurality of spaced-apart generally parallel fiber strands positioned adjacent to and forming a plurality of intersections with at least a portion of the first plurality of strands; (iii) a first tying member fixedly connecting portions of fiber strands of the first plurality of fiber strands with intersecting corresponding portions of the second plurality of fiber; (iv) a second tying member fixedly connecting at least two adjacent generally parallel spaced fiber strands of the first plurality of fiber strands; and (v) a bonding agent adhering predetermined regions of selected fiber strands of the first plurality of fiber strands with predetermined regions of selected fiber strands of the second plurality of fiber strands; wherein at least a portion of the fiber strands selected from the group consisting of the first plurality of fiber strands, the second plurality of fiber strands and combinations thereof comprise glass fibers; and (b) a second geosynthetic material coextensive with at least a portion of and positioned adjacent to at least one side of the first geosynthetic material, wherein the second geosynthetic material is different from the first geosynthetic material.
Claim 32
Dependent Claim
204 words
A geosynthetic composite comprising: (a) first geosynthetic material comprising: (i) a first plurality of spaced-apart generally parallel fiber strands; (ii) a second plurality of spaced-apart generally parallel fiber strands positioned adjacent to and forming a plurality of intersections with at least a portion of the first plurality of strands; (iii) a first tying member fixedly connecting portions of fiber strands of the first plurality of fiber strands with intersecting corresponding portions of the second plurality of fiber; (iv) a second tying member fixedly connecting at least two adjacent generally parallel spaced fiber strands of the first plurality of fiber strands; and (v) a bonding agent adhering predetermined regions of selected fiber strands of the first plurality of fiber strands with predetermined regions of selected fiber strands of the second plurality of fiber strands; wherein at least a portion of the fiber strands selected from the group consisting of the first plurality of fiber strands, the second plurality of fiber strands and combinations thereof comprise glass fibers; and (b) a second geosynthetic material coextensive with at least a portion of and positioned adjacent to at least one side of the first geosynthetic material, wherein the second geosynthetic material is different from the first geosynthetic material.
Claim 33
Dependent Claim
14 words
The reinforced soil composite of claim 29 , wherein the composite is moisture permeable.
Claim 34
Dependent Claim
15 words
The reinforced soil composite of claim 29 , wherein the composite is impermeable to moisture.
Claim 35
Dependent Claim
31 words
The geosynthetic composite according to claim 29 , wherein the second geosynthetic material is selected from the group consisting of a geosynthetic clay liner, a film, a foil, and a fabric.
Claim 36
Dependent Claim
151 words
A geosynthetic material for reinforcing a soil material to form a reinforced soil composite, the geosynthetic material comprising: (a) a first plurality of spaced-apart generally parallel fiber strands; (b) a second plurality of spaced-apart generally parallel fiber strands positioned adjacent to and forming a plurality of intersections with at least a portion of the first plurality of strands; (c) a tying member fixedly connecting portions of fiber strands of the first plurality of fiber strands with intersecting corresponding portions of the second plurality of fiber; and (d) a bonding agent adhering predetermined regions of selected fiber strands of the first plurality of fiber strands with predetermined regions of selected fiber strands of the second plurality of fiber strands; wherein at least a portion of the fiber strands selected from the group consisting of the first plurality of fiber strands, the second plurality of fiber strands and combinations thereof comprise glass fibers.
Claim 37
Dependent Claim
151 words
A geosynthetic material for reinforcing a soil material to form a reinforced soil composite, the geosynthetic material comprising: (a) a first plurality of spaced-apart generally parallel fiber strands; (b) a second plurality of spaced-apart generally parallel fiber strands positioned adjacent to and forming a plurality of intersections with at least a portion of the first plurality of strands; (c) a tying member fixedly connecting portions of fiber strands of the first plurality of fiber strands with intersecting corresponding portions of the second plurality of fiber; and (d) a bonding agent adhering predetermined regions of selected fiber strands of the first plurality of fiber strands with predetermined regions of selected fiber strands of the second plurality of fiber strands; wherein at least a portion of the fiber strands selected from the group consisting of the first plurality of fiber strands, the second plurality of fiber strands and combinations thereof comprise glass fibers.
Claim 38
Dependent Claim
117 words
A geosynthetic material for reinforcing a soil material to form a reinforced soil composite, the geosynthetic material comprising: (a) a first plurality of spaced-apart generally parallel fiber strands; (b) a second plurality of spaced-apart generally parallel fiber strands positioned interwoven with at least a portion of the first plurality of strands; and (c) a bonding agent adhering predetermined regions of selected fiber strands of the first plurality of fiber strands with predetermined regions of selected fiber strands of the second plurality of fiber strands; wherein at least a portion of the fiber strands selected from the group consisting of the first plurality of fiber strands, the second plurality of fiber strands and combinations thereof comprise glass fibers.
Claim 39
Dependent Claim
117 words
A geosynthetic material for reinforcing a soil material to form a reinforced soil composite, the geosynthetic material comprising: (a) a first plurality of spaced-apart generally parallel fiber strands; (b) a second plurality of spaced-apart generally parallel fiber strands positioned interwoven with at least a portion of the first plurality of strands; and (c) a bonding agent adhering predetermined regions of selected fiber strands of the first plurality of fiber strands with predetermined regions of selected fiber strands of the second plurality of fiber strands; wherein at least a portion of the fiber strands selected from the group consisting of the first plurality of fiber strands, the second plurality of fiber strands and combinations thereof comprise glass fibers.
Claim 40
Dependent Claim
36 words
The geosynthetic material according to claim 1 , wherein the base coating composition is aqueous-based and the film-forming materials are selected from the group consisting acrylic polymers, polyamides, polyolefins, polyesters, polyurethanes, vinyl polymers and mixtures thereof.
Claim 41
Dependent Claim
288 words
A geosynthetic material for reinforcing a soil material to form a reinforced soil composite, the geosynthetic material comprising: (a) a first plurality of spaced-apart generally parallel glass fiber strands, wherein the first plurality of glass fiber strands includes fibers coated with an essentially dried residue of a sizing composition and an aqueous based base coating composition comprising at least one acrylic polymer applied over the sizing composition such that at least a portion of the first plurality of fiber strands are impregnated with the base coating composition; (b) a second plurality of spaced-apart generally parallel glass fiber strands positioned adjacent to and forming a plurality of intersections with at least a portion of the first plurality of strands, wherein the second plurality of glass fiber strands includes fibers coated with an essentially dried residue of the sizing composition and the aqueous based base coating composition comprising the at least one acrylic polymer applied over the sizing composition such that at least a portion of the first plurality of fiber strands are impregnated with the base coating composition; (c) a first tying member fixedly connecting portions of fiber strands of the first plurality of fiber strands with intersecting corresponding portions of the second plurality of fiber strands; (d) a second tying member fixedly connecting at least two adjacent generally parallel spaced fiber strands of the first plurality of fiber strands; and (e) a bonding agent adhering predetermined regions of selected fiber strands of the first plurality of fiber strands with predetermined regions of selected fiber strands of the second plurality of fiber strands, wherein the bonding agent is applied over selected portions of the base coating composition, wherein the geosynthetic material resists chemical and biological attack from soil material.
Claim 42
Dependent Claim
288 words
A geosynthetic material for reinforcing a soil material to form a reinforced soil composite, the geosynthetic material comprising: (a) a first plurality of spaced-apart generally parallel glass fiber strands, wherein the first plurality of glass fiber strands includes fibers coated with an essentially dried residue of a sizing composition and an aqueous based base coating composition comprising at least one acrylic polymer applied over the sizing composition such that at least a portion of the first plurality of fiber strands are impregnated with the base coating composition; (b) a second plurality of spaced-apart generally parallel glass fiber strands positioned adjacent to and forming a plurality of intersections with at least a portion of the first plurality of strands, wherein the second plurality of glass fiber strands includes fibers coated with an essentially dried residue of the sizing composition and the aqueous based base coating composition comprising the at least one acrylic polymer applied over the sizing composition such that at least a portion of the first plurality of fiber strands are impregnated with the base coating composition; (c) a first tying member fixedly connecting portions of fiber strands of the first plurality of fiber strands with intersecting corresponding portions of the second plurality of fiber strands; (d) a second tying member fixedly connecting at least two adjacent generally parallel spaced fiber strands of the first plurality of fiber strands; and (e) a bonding agent adhering predetermined regions of selected fiber strands of the first plurality of fiber strands with predetermined regions of selected fiber strands of the second plurality of fiber strands, wherein the bonding agent is applied over selected portions of the base coating composition, wherein the geosynthetic material resists chemical and biological attack from soil material.
Claim 43
Dependent Claim
36 words
The geosynthetic material according to claim 36 , wherein the fiber strands of the first plurality of fiber strands are generally coplanar, and the fiber strands of the second plurality of fiber strands are generally coplanar.
Claim 44
Dependent Claim
94 words
The geosynthetic material according to claim 36 , wherein spacing between adjacent fiber strands of at least one portion of the fiber strands of the first plurality of fiber strands is different from spacing between adjacent strands of another portion of the fiber strands of the first plurality of fiber strands, and spacing between adjacent fiber strands of at least one portion of the fiber strands of the second plurality of fiber strands is different from spacing between adjacent strands of another portion of the fiber strands of the second plurality of fiber strands.
Claim 45
Dependent Claim
40 words
The geosynthetic material according to claim 36 , wherein at least a portion of the fiber strands of the first plurality of fiber strands and a portion of the fiber strands of the second plurality of fiber strands are interwoven.
Claim 46
Dependent Claim
33 words
The geosynthetic material according to claim 36 , wherein the fiber strands of the first plurality of fiber strands and the fiber strands of the second plurality of fiber strands are not interwoven.
Claim 47
Dependent Claim
41 words
The geosynthetic material according to claim 36 , wherein the first tying member and the second tying member are each formed from a material selected from the group consisting of inorganic materials, natural materials, thermoplastic materials, thermosetting materials and combinations thereof.
Claim 48
Dependent Claim
26 words
The geosynthetic material according to claim 36 , wherein the first tying member and the second tying member are adjacent portions of a single tying member.
Claim 49
Dependent Claim
33 words
The geosynthetic material according to claim 36 , wherein the second tying member fixedly connects from 2 to 10 adjacent generally parallel spaced fiber strands selected from the first plurality of fiber strands.
Claim 50
Dependent Claim
16 words
The geosynthetic material according to claim 36 , wherein the bonding agent comprises a thermoplastic material.
Claim 51
Dependent Claim
47 words
The geosynthetic material according to claim 36 , wherein the bonding agent and the tying member fixedly connect a fiber strand of the first plurality of fiber strands with an intersecting fiber strand of the second plurality of fiber strands in the region of an intersection thereof.
Claim 52
Dependent Claim
49 words
The geosynthetic material according to claim 36 , wherein the maximum strain along an axis parallel to the first plurality of fiber strands ranges from about 2% to about 4% at rupture of all of the first plurality of fiber strands under a tensile load applied along said axis.
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USPTO Annuity & Maintenance Windows
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|---|---|---|---|---|---|
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| 7.5 Years (Year 8) | 2008-01-09 | 2008-07-10 | 2009-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-01-09 | 2012-07-10 | 2013-01-09 | $7700.00 | Window Closed / Lapsed |