 Thermoplastic elastomer composition |
| OF THE INVENTION The thermoplastic elastomer composition of the invention comprises 100 parts by ... |
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| Intercalations of crystalline lithium aluminates |
| As shown in the above patents which are incorporated herein by reference, hydrous alumina, ... |
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| Surface wettable silicone hydrogels |
| OF THE INVENTION The crosslinked polymeric network found in the hydrogels of the present invention ... |
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| High voltage insulating compositions containing phosphorus compounds |
| OF THE PREFERRED EMBODIMENTS OF THE INVENTION Preferred phosphorus compounds for use in the ... |
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| Flame retardant polyphenylene oxide thermoplastics |
| What is claimed is: 1. A flame retardant thermoplastic blend comprising by weight (A) 100 parts of ... |
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| Film and sheet capable of forming retortable and easy-open packagings |
| OF THE PREFERRED EMBODIMENT Applicants have found that a wrappable film may be made which is ... |
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| Hot melt adhesive |
| What is claimed is: 1. A hot melt adhesive composition for bonding polypropylene substrates, said ... |
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| Flame retardant compositions |
| What is claimed is: 1. The flame retardant polymer composition comprising a linear alternating ... |
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| Oil resistant thermoplastic elastomer |
| The thermoplastic elastomer compositions produced according to the process of the present ... |
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Soaker hose
| Details |
Inventors: Turner, James E.;
Assignee: Entek Corporation (Dallas, TX)
Primary Examiner: Love; John J.
Assistant Examiner: Kashnikow; Andres
Attorney, Agent or Firm: Kintzinger; Warren H.
A porous flexible hose primarily of crumbed rubber and synthetic rubber reclaimed from rubber tires, ground to a relatively small granular size, with metal removed; such as, for example, would pass through a 30-mesh screen, process-mixed through an extruder, with a much smaller binder mix of primarily polyethylene, in the order of 25% by weight, and with approximately 0.5% of the mixture added sulphur and 0.5% oil that can be random mixed grades of automobile engine oil. The resulting product is useful as a soil watering soaker hose that has a high degree of flexibility along its length. It is a water leaking soaker hose formed in the process through the extruder with limited foaming from steam originating from absorbed moisture in the crumbed, reclaimed rubber tire material, and from residual gases venting from the material mix, with product mix heating in the extruder, forming some open cell fluid flow paths. The foaming with steam and gases from the mix also form labyrinth passageways between the rubber tire granules and the polyethylene binder mix, and also through the binder mix that is non-compatible with the rubber granules but that forms a physical interconnective structural material binder therefor. |
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DETAILED DESCRIPTION I claim: 1.
A porous hose: comprising, primarily reclaimed rubber-like previously vulcanized material; a smaller portion binder mix of polyethylene, sulfur, and oil; with hose wall transverse cross-sectional area greater than transverse cross-sectional area of the hose opening; and with the hose walls containing a multiplicity of relatively small, in transverse cross-section, irregularly shaped labyrinth type channels providing many through-the-wall seepage passageways.
2.
The porous hose of claim 1, with said rubber-like, previously vulcanized material comprising crumbed bits generally less than one-sixteenth inch in diameter.
3.
The porous hose of claim 2, with the smaller binder mix of polyethylene, sulfur, and oil comprising a percentage by weight in the product of approximately 25%.
4.
The porous hose of claim 3, with said smaller binder mix comprising a predominance of polyethylene and substantially smaller percentages by weight of sulfur and oil.
5.
The porous hose of claim 4, with said percentage by weight of sulfur and oil comprising approximately equal amounts of sulfur and oil totaling approximately 1 percent.
6.
The porous hose of claim 4, with said polyethylene having a density of approximately 0.
946 and a melt point in the range of 0.
22 to 0.
55.
7.
The porous hose of claim 6, with said hose comprising a heat fused extruded casing of said materials, the outer surface thereof having been rapidly chilled as extruded.
8.
The porous of claim 7, with said labyrinth type channels being sized to substantially preclude seepage therethrough of water flowing through said hose at a predetermined normal flow pressure.
9.
The porous hose of claim 8, with said oil comprising used vehicle engine oil.
10.
A porous hose: consisting primarily of bits of reclaimed vehicle tire casings less the metallic content thereof; a smaller binder material amount of polyethylene, sulfur, and oil; with hose wall transverse cross-sectional area greater than transverse cross-sectional area of the hose opening; and with the hose walls containing a multiplicity of relatively small, in transverse cross-section, irregularly shaped labyrinth type channels providing many through-the-wall seepage passageways
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Adhesives and Rubbers 
