Repaired plastic product

11059245 ยท 2021-07-13

Assignee

Inventors

Cpc classification

International classification

Abstract

The invention relates to a repaired plastic product comprising a body (1) made from a first plastic material (2) and at least one repaired segment having a second plastic material (3) comprising particles designed to be visible under the application of light (4) comprised in the infrared or ultraviolet electromagnetic spectrum.

Claims

1. A repaired plastic product comprising: a body made from a first plastic material, wherein the first plastic material of the body has a repaired segment; at least one repaired segment having a second plastic welding material welded to the first plastic material, wherein the first and second materials have cooled in the at least repaired segment and a sanding processing for removing an excess thickness of the second plastic material, wherein the second plastic welding material comprises visibly detectable particles, and wherein the first and second plastic materials are different materials; and a light-emitting apparatus for emitting ultraviolet electromagnetic spectrum light visibly detecting the particles on a surface finish of the repaired plastic product, wherein the surface finish of the repaired plastic product is equivalent to a new body product for maintaining leaktight properties of the body.

2. The repaired plastic product according to claim 1, wherein the second plastic material is selected from the group comprising polyethylene, polypropylene, acrylonitrile butadiene styrene, polycarbonate, polyamide, polyvinyl chloride, or any one mixture of these compounds or the derivatives thereof.

Description

DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 shows an example of a repaired plastic product according to the invention, specifically an urban waste container.

(2) FIG. 2 shows the urban waste container of FIG. 1, on which a light which allows viewing particles comprised in a second plastic material is applied, making it possible to demarcate a repaired segment thereof.

DETAILED DESCRIPTION OF THE INVENTION

(3) A repaired plastic product according to the invention, for example, an urban waste container, is described below. However, it is obvious that said repaired product can be of any other type of plastic article.

(4) Said product comprises a body (1) made from a first plastic material (2). When it is detected that said product must be repaired, the possible segments where ruptures occurred must first be taken into account, and each segment must be examined to check if the product has a crack or has sustained the complete separation of a section thereof.

(5) In the even that a crack has occurred in the rupture segment, one part of the crack is fixed to the other part by means of fastening elements (such as clamps or an equivalent tool, for example), so that the body (1) adopts its initial shape as much as possible.

(6) After that, edges defined by the open parts of the crack are chamfered, such that a housing intended for receiving a second plastic welding material (3) is determined. Said housing is then preheated until it is in a plastic state. At that point, the second plastic welding material (3) is poured onto the mentioned housing in molten state so as to weld the two or more parts of the rupture present in the section.

(7) Once said second plastic material (3) has been poured, the rupture segment must be pressed with a roller-like tool until the surface of the product becomes as smooth as possible, and once both the first and the second plastic materials (2 and 3) present in the segment have cooled down, excess second plastic material (3) is removed by means of sanding or an equivalent process.

(8) The surface finish of the body (1) of the repaired plastic product is therefore equivalent to that of a new product, said repaired body (1) maintains suitable leaktightness properties, and furthermore it is not possible to readily distinguish under the naked eye whether the product is a new or repaired product.

(9) On the other hand, in the event that the complete separation of a section of the body (1) has occurred in the rupture segment, the rupture segment is first cut into a geometrical shape to be selected, such as a rectangular or circular shape, for example. After that, a template having a shape that matches the cut-out shape in the segment, made from the same first plastic material (2) as the body (1), is fitted therein.

(10) Once the template has been placed in the rupture segment, the same steps of the repair method described for the instance of ruptures due to cracks are followed.

(11) The indicated second plastic material (3) can be polyethylene, polypropylene, ABS (acrylonitrile butadiene styrene), polycarbonate, polyamide, polyvinyl chloride, or any mixture of these compounds or the derivatives thereof. Likewise, this second plastic material (3) comprises particles designed to be visible under the application of light (4) comprised in the infrared or ultraviolet electromagnetic spectrum, produced by a light-emitting apparatus (5) which emits ultraviolet or infrared light, such as an ultraviolet or infrared light flashlight, for example.

(12) Said particles are not visible when viewed under the naked human eye, so one would be unable to tell without particular tools whether or not the body (1) of the product has been repaired. To that end, through the light-emitting apparatus (5), light (4) must be applied over the entire body (1) until at least one of the rupture segments which has been repaired is located.

(13) FIG. 1 shows the body (1) of the repaired plastic product object of the invention (in this specific instance, an urban waste container), in which it is impossible to distinguish under the naked eye if the product is a new product or if any segment thereof has been subject to repair.

(14) Likewise, FIG. 2 shows the same product of FIG. 1 on which ultraviolet light (4) is applied over a segment of the body (1) by means of a light-emitting apparatus (5), making the particles of the second plastic material (3) visible.