CA2728635A1 - Heavy duty green tarpaulin - Google Patents
Heavy duty green tarpaulin Download PDFInfo
- Publication number
- CA2728635A1 CA2728635A1 CA 2728635 CA2728635A CA2728635A1 CA 2728635 A1 CA2728635 A1 CA 2728635A1 CA 2728635 CA2728635 CA 2728635 CA 2728635 A CA2728635 A CA 2728635A CA 2728635 A1 CA2728635 A1 CA 2728635A1
- Authority
- CA
- Canada
- Prior art keywords
- tarpaulin
- sheeting
- rubber
- cover
- properties
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/04—Disintegrating plastics, e.g. by milling
- B29B17/0412—Disintegrating plastics, e.g. by milling to large particles, e.g. beads, granules, flakes, slices
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J11/00—Recovery or working-up of waste materials
- C08J11/04—Recovery or working-up of waste materials of polymers
- C08J11/06—Recovery or working-up of waste materials of polymers without chemical reactions
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L17/00—Compositions of reclaimed rubber
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2030/00—Pneumatic or solid tyres or parts thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2319/00—Characterised by the use of rubbers not provided for in groups C08J2307/00 - C08J2317/00
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- Wrappers (AREA)
Abstract
The invention uses rubber sheeting manufactured from rubber recovered from the recycling of scrap rubber tires to fabricate tarpaulins with physical properties that provide improved protection for the objects and surfaces they cover. The component sheeting is highly durable, UV resistant, will not rot or mildew, is highly puncture and rip resistant, and is manufactured in an environmentally green process.
By itself, the sheeting is inherently stiff and not easily foldable into portable, stackable packages. The invention joins multiple small, easily manageable rectangles of the sheeting by means of a flexible hinge material, thus creating a relatively large tarpaulin which can be folded into a compact, uniform package that is easily stored, transported, and re-folded after use.
The invention makes practicable the use of recycled rubber sheeting to fabricate heavy duty tarpaulins with improved protective properties due to the inherent resilience and strength of the rubber sheeting.
By itself, the sheeting is inherently stiff and not easily foldable into portable, stackable packages. The invention joins multiple small, easily manageable rectangles of the sheeting by means of a flexible hinge material, thus creating a relatively large tarpaulin which can be folded into a compact, uniform package that is easily stored, transported, and re-folded after use.
The invention makes practicable the use of recycled rubber sheeting to fabricate heavy duty tarpaulins with improved protective properties due to the inherent resilience and strength of the rubber sheeting.
Description
Background Of The Invention Tarpaulins, or "tarps", have been in general use for many years. Most commonly they are used for temporary weather protection of construction materials, buildings under construction or repair, equipment, vehicles, boats, and cargo being transported.
Presently on the market are tarpaulins manufactured from flexible polyvinyl chloride (PVC) and from canvas. PVC tarpaulins are relatively thin, light weight and susceptible to puncture and tearing. Canvas tarpaulins, while relatively heavy and stronger than PVC, are susceptible to mildew and gradual degradation in damp or wet environments.
The invention utilizes an environmentally green process to fabricate heavy duty tarpaulins that are puncture and rip resistant and impervious to water and mildew.
The following United States of America patents are typical examples of the application of tarpaulins and the use of recycled tire sheeting:
US5560384 OH SEI-YOON Recyclable tarpaulin sheet.
An outdoor sunscreen formed without rope or pole connecting eyelets includes a fabric sheet having a reinforced margin.
US5527409 LANPHIER Method of making recycled tire roof sheeting.
An inexpensive, durable, and easily applied roofing material ...
US20090178346 DIAZ Roof tarp system and method for use.
The present invention includes a roof tarp system and method for sealing an opening in a roof or other opening in a building.
US20090208696 FROMMEYER Adjustable bush trimmings tarp.
The adjustable Bush Trimmings Tarp is made up of six pieces of a heavy duty pliable material such as heavy cloth, canvas, or a polyethylene type material.
US20020095898 BETTENCOURT Modular-tarp building-roof/wall shielding & system.
An environmentally conservative and more cost-effective apparatus and method for protecting architectural-building construction work in progress ...
The present invention provides a heavy duty tarpaulin with improved protective performance compared to other commercially available tarpaulins. An additional advantage of the invention is the environmental benefit that accrues from the recycling of scrap rubber tires.
Summary Of The Invention The principal material used in the invention is sheets of masticated rubber crumb recovered from the recycling of scrap rubber tires. Such material is strong, resilient, waterproof, will not mildew, and is UV resistant. In sheet form it has a minimum thickness of approximately 0.080 inches and maximum width of approximately 48 inches.
Due to its thickness it is not easily folded and due to its maximum width it is not suitable for covering large objects or openings.
The invention solves the problem of folding the sheets and of creating a wider cover by joining multiple smaller rectangular sheets of the material with a flexible hinge, to create a relatively larger sheet, or tarpaulin. Due to the thickness, resiliency and strength of the rubber sheets, such tarpaulins provide enhanced protection for the objects they cover.
Sheets of the rubber material are cut into smaller rectangles, joined and hinged together by strips of flexible material such as, in one embodiment, ethylene propylene diene rubber (EPDM rubber) to form a highly durable, flexible and resilient tarpaulin that is foldable and can conform to the shape of the object being covered. Such tarpaulins are scalable as to size, depending on the size and number of small rubber rectangles joined and hinged together by the flexible strips. In the fabricating of the tarpaulins, the size of the smaller rectangular sheets can be varied to suit the end-use of the tarpaulin.
In the drawings, which form part of this specification:
Figure 1. is the surface view of a tarpaulin comprised of multiple relatively smaller rectangular sheets of recycled rubber joined by flexible hinge strips.
Figure 2. illustrates preferred methods of joining and hinging the rubber sheets with strips of flexible material. The illustration shows the hinge joining two edges only, for clarity.
Figure 3. illustrates an application of the invention as weather protection for a roof under repair or construction.
Figure 4. illustrates an application of the invention as a weatherproof, foldable cover for a truck box.
Detailed Description Of The Invention The masticated rubber sheets are manufactured from recycled rubber crumb incorporated into a thermoplastic matrix. The manufacturing is a proprietary process using recycled content which is 49% post consumer tire-derived and 41 % post industrial tire plant scrap.
These sheets exhibit performance characteristics associated with rubber, such as durability, resiliency, and toughness:
Tensile Strength, Min. ASTM D412 With grain: 697 PSI
Cross grain: 363 PSI
Tear Strength, Min. ASTM D624 With grain: 120 PI
Cross grain: 250 PI
Elongation, %, Min. ASTM D412 With grain: 15 Cross grain: 40 Low Temperature ASTM D2137 Not brittle at -40 C
Heat Aged % Change ASTM D573 Tensile Strength - 25 Elongation - 25 In the preferred embodiment of the invention, EPDM rubber is used as hinge material.
EPDM rubber hinge strips are strong, resilient and flexible and may be adhered to the masticated rubber sheets in a strong, waterproof joint.
Tensile Strength, Min. ASTM D412 800 PSI
Elongation, %, Min. ASTM D412 300 Temperature Range -40 C to 121 C
Heat Aged % Change ASTM D573 Tensile Strength -25 Elongation -25 In the illustrated embodiment of the invention, the masticated rubber sheets are 0.080 inches thick, and weigh 7.76 ounces per square foot; the EPDM rubber strips are 0.045 inches thick, and weigh 4.26 ounces per square foot.
The weight and inherent stiffness of the rubber sheets make the fabricated tarpaulins highly wind-resistant in exposed locations, compared to PVC or canvas tarpaulins. The surface of the rubber sheets is resilient and shock-absorbent, compared to PVC
or canvas tarpaulins.
Rectangular sheet component (1) in Figure 1. is cut to a size such that the complete tarpaulin may be easily folded, stored or transported. These smaller component sheets are separated by a gap (2) sufficient to allow the folding of the component sheets of the tarpaulin, one over the other, both longitudinally and transversely into a uniform, compact package.
Strips of flexible material (3) span the gap, overlap the edges of the smaller component sheets (1), and are joined to the smaller sheets at the overlapped joint (4).
The flexible strips may be joined to the smaller sheets by heat or chemical vulcanizing, thus creating a waterproof joint, or they may be mechanically joined to the smaller sheets by stitching. The method of joining the flexible strips to the smaller sheets depends upon the end-use requirement of the tarpaulin.
The flexible hinge strips (3), in the preferred embodiment of the invention, are cut from EPDM rubber. The hinge may be a single strip, applied to one side of the joint, or two strips, one applied to each side of the joint, creating a double hinge joint.
This design adds thickness and resilience to the hinge. A reinforcing bar (8) may be inserted into the pocket (7) formed in the gap of a double hinge joint. This design provides support for tarpaulins designed to span large openings in the object or area to be covered.
Grommet holes as in Figure 4. (5) on the edges of outside component sheets may be used in combination with bungee cords or other tie-down methods to secure a tarpaulin.
Presently on the market are tarpaulins manufactured from flexible polyvinyl chloride (PVC) and from canvas. PVC tarpaulins are relatively thin, light weight and susceptible to puncture and tearing. Canvas tarpaulins, while relatively heavy and stronger than PVC, are susceptible to mildew and gradual degradation in damp or wet environments.
The invention utilizes an environmentally green process to fabricate heavy duty tarpaulins that are puncture and rip resistant and impervious to water and mildew.
The following United States of America patents are typical examples of the application of tarpaulins and the use of recycled tire sheeting:
US5560384 OH SEI-YOON Recyclable tarpaulin sheet.
An outdoor sunscreen formed without rope or pole connecting eyelets includes a fabric sheet having a reinforced margin.
US5527409 LANPHIER Method of making recycled tire roof sheeting.
An inexpensive, durable, and easily applied roofing material ...
US20090178346 DIAZ Roof tarp system and method for use.
The present invention includes a roof tarp system and method for sealing an opening in a roof or other opening in a building.
US20090208696 FROMMEYER Adjustable bush trimmings tarp.
The adjustable Bush Trimmings Tarp is made up of six pieces of a heavy duty pliable material such as heavy cloth, canvas, or a polyethylene type material.
US20020095898 BETTENCOURT Modular-tarp building-roof/wall shielding & system.
An environmentally conservative and more cost-effective apparatus and method for protecting architectural-building construction work in progress ...
The present invention provides a heavy duty tarpaulin with improved protective performance compared to other commercially available tarpaulins. An additional advantage of the invention is the environmental benefit that accrues from the recycling of scrap rubber tires.
Summary Of The Invention The principal material used in the invention is sheets of masticated rubber crumb recovered from the recycling of scrap rubber tires. Such material is strong, resilient, waterproof, will not mildew, and is UV resistant. In sheet form it has a minimum thickness of approximately 0.080 inches and maximum width of approximately 48 inches.
Due to its thickness it is not easily folded and due to its maximum width it is not suitable for covering large objects or openings.
The invention solves the problem of folding the sheets and of creating a wider cover by joining multiple smaller rectangular sheets of the material with a flexible hinge, to create a relatively larger sheet, or tarpaulin. Due to the thickness, resiliency and strength of the rubber sheets, such tarpaulins provide enhanced protection for the objects they cover.
Sheets of the rubber material are cut into smaller rectangles, joined and hinged together by strips of flexible material such as, in one embodiment, ethylene propylene diene rubber (EPDM rubber) to form a highly durable, flexible and resilient tarpaulin that is foldable and can conform to the shape of the object being covered. Such tarpaulins are scalable as to size, depending on the size and number of small rubber rectangles joined and hinged together by the flexible strips. In the fabricating of the tarpaulins, the size of the smaller rectangular sheets can be varied to suit the end-use of the tarpaulin.
In the drawings, which form part of this specification:
Figure 1. is the surface view of a tarpaulin comprised of multiple relatively smaller rectangular sheets of recycled rubber joined by flexible hinge strips.
Figure 2. illustrates preferred methods of joining and hinging the rubber sheets with strips of flexible material. The illustration shows the hinge joining two edges only, for clarity.
Figure 3. illustrates an application of the invention as weather protection for a roof under repair or construction.
Figure 4. illustrates an application of the invention as a weatherproof, foldable cover for a truck box.
Detailed Description Of The Invention The masticated rubber sheets are manufactured from recycled rubber crumb incorporated into a thermoplastic matrix. The manufacturing is a proprietary process using recycled content which is 49% post consumer tire-derived and 41 % post industrial tire plant scrap.
These sheets exhibit performance characteristics associated with rubber, such as durability, resiliency, and toughness:
Tensile Strength, Min. ASTM D412 With grain: 697 PSI
Cross grain: 363 PSI
Tear Strength, Min. ASTM D624 With grain: 120 PI
Cross grain: 250 PI
Elongation, %, Min. ASTM D412 With grain: 15 Cross grain: 40 Low Temperature ASTM D2137 Not brittle at -40 C
Heat Aged % Change ASTM D573 Tensile Strength - 25 Elongation - 25 In the preferred embodiment of the invention, EPDM rubber is used as hinge material.
EPDM rubber hinge strips are strong, resilient and flexible and may be adhered to the masticated rubber sheets in a strong, waterproof joint.
Tensile Strength, Min. ASTM D412 800 PSI
Elongation, %, Min. ASTM D412 300 Temperature Range -40 C to 121 C
Heat Aged % Change ASTM D573 Tensile Strength -25 Elongation -25 In the illustrated embodiment of the invention, the masticated rubber sheets are 0.080 inches thick, and weigh 7.76 ounces per square foot; the EPDM rubber strips are 0.045 inches thick, and weigh 4.26 ounces per square foot.
The weight and inherent stiffness of the rubber sheets make the fabricated tarpaulins highly wind-resistant in exposed locations, compared to PVC or canvas tarpaulins. The surface of the rubber sheets is resilient and shock-absorbent, compared to PVC
or canvas tarpaulins.
Rectangular sheet component (1) in Figure 1. is cut to a size such that the complete tarpaulin may be easily folded, stored or transported. These smaller component sheets are separated by a gap (2) sufficient to allow the folding of the component sheets of the tarpaulin, one over the other, both longitudinally and transversely into a uniform, compact package.
Strips of flexible material (3) span the gap, overlap the edges of the smaller component sheets (1), and are joined to the smaller sheets at the overlapped joint (4).
The flexible strips may be joined to the smaller sheets by heat or chemical vulcanizing, thus creating a waterproof joint, or they may be mechanically joined to the smaller sheets by stitching. The method of joining the flexible strips to the smaller sheets depends upon the end-use requirement of the tarpaulin.
The flexible hinge strips (3), in the preferred embodiment of the invention, are cut from EPDM rubber. The hinge may be a single strip, applied to one side of the joint, or two strips, one applied to each side of the joint, creating a double hinge joint.
This design adds thickness and resilience to the hinge. A reinforcing bar (8) may be inserted into the pocket (7) formed in the gap of a double hinge joint. This design provides support for tarpaulins designed to span large openings in the object or area to be covered.
Grommet holes as in Figure 4. (5) on the edges of outside component sheets may be used in combination with bungee cords or other tie-down methods to secure a tarpaulin.
Claims (16)
1. A tarpaulin, fabricated from rubber sheeting manufactured from rubber recovered from the recycling of scrap rubber tires.
2. A tarpaulin as defined in claim 1. which is readily scalable as to size.
3. A tarpaulin as defined in claim 1. which is readily foldable.
4. A tarpaulin as defined in claim 1. which is storable and re-useable.
5. A tarpaulin as defined in claim 1. with a resilient, shock-absorbent surface.
6. A tarpaulin as defined in claim 1. which is wind resistant.
7. A tarpaulin as defined in claim 1. which is puncture and tear resistant.
8. A tarpaulin as defined in claim 1. which is waterproof.
9. A tarpaulin as defined in claim 1. which will not mildew.
10.A tarpaulin as defined in claim 1. which is UV resistant.
11. A tarpaulin as defined in claim 1. which can be reinforced internally to span large openings.
12. The properties of a tarpaulin as defined in claim 1. and claimed in claims 6., 8. and 11. where the tarpaulin is applied to the roof of a structure under construction or repair, to protect the roof from rain or snow, as in Figure 3., and where the top row(s) of sheeting of such a tarpaulin may be cast over the ridge of the roof to both seal the ridge and support the tarpaulin, and where multiples of such tarpaulins may be overlapped to cover large areas.
13. The properties of a tarpaulin as defined in claim 1. and claimed in claims 4. and 5.
where the tarpaulin is applied to cover a vehicle to protect the surface of the vehicle from hail damage.
where the tarpaulin is applied to cover a vehicle to protect the surface of the vehicle from hail damage.
14. The properties of a tarpaulin as defined in claim 1. and claimed in claims 2., 3., 5., 6., 7., 8., 9., 10. and 11. where the tarpaulin is applied to cover the box of a truck as weather protection or for security, as in Figure 4..
15.The properties of a tarpaulin claimed in claim 14. where the tarpaulin is applied to cover a truck box carrying aggregates or refuse, to prevent spillage.
16. The properties of a tarpaulin as defined in claim 1. and claimed in claims 4., 5. and 7. where the tarpaulin is used to cover the jagged edges of a crash-damaged vehicle to facilitate the removal of persons from the vehicle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2728635 CA2728635A1 (en) | 2011-01-05 | 2011-01-05 | Heavy duty green tarpaulin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2728635 CA2728635A1 (en) | 2011-01-05 | 2011-01-05 | Heavy duty green tarpaulin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2728635A1 true CA2728635A1 (en) | 2012-07-05 |
Family
ID=46466999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2728635 Abandoned CA2728635A1 (en) | 2011-01-05 | 2011-01-05 | Heavy duty green tarpaulin |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2728635A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015181707A1 (en) * | 2014-05-30 | 2015-12-03 | Officine Meccaniche Carpenterie Monregalesi - O.M.C.M. Di C. Chiecchio & C. S.N.C. | Method for recovering waste tyres and elastomeric elongated element obtained with said method |
| WO2017136933A1 (en) * | 2016-02-08 | 2017-08-17 | Fagan James Hubert | Flexible containment blanket for covering disposal receptacles |
-
2011
- 2011-01-05 CA CA 2728635 patent/CA2728635A1/en not_active Abandoned
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015181707A1 (en) * | 2014-05-30 | 2015-12-03 | Officine Meccaniche Carpenterie Monregalesi - O.M.C.M. Di C. Chiecchio & C. S.N.C. | Method for recovering waste tyres and elastomeric elongated element obtained with said method |
| WO2017136933A1 (en) * | 2016-02-08 | 2017-08-17 | Fagan James Hubert | Flexible containment blanket for covering disposal receptacles |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request |
Effective date: 20151029 |
|
| FZDE | Dead |
Effective date: 20180604 |