# US 5,707,698 A · Synthetic resin article in two parts and process for its production

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- Number: US 5,707,698 A
- Document ID: US5707698A
- Status: Granted
- Kind: A
- Application number: 08/510,061
- Filed: 1995-08-01
- Granted: 1998-01-13
- Earliest claimed: 1994-08-01
- Assignees: Lir France
- Inventors: Bernard Favre
- Web page: https://patentgrep.com/patent/US5707698A

## CPC

- A45D 40/00: Casings or accessories specially adapted for storing or handling solid or pasty toiletry or cosmetic substances, e.g. shaving soaps or lipsticks (features common to containers for handling powdery or liquid toiletry or cosmetic substances A45D33/00-A45D37/00; cosmetic or like preparations A61K8/00, A61Q; sample tables or the like G09F5/00)
- A45D 34/00: Containers or accessories specially adapted for handling liquid toiletry or cosmetic substances, e.g. perfumes
- B29C 65/72: by combined operations {or combined techniques}, e.g. welding and stitching
- B29C 66/54: {Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles}
- B65D 11/00: {Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material (specially constructed to be opened by cutting, piercing, or tearing of wall portions B65D17/00; pallets B65D19/00)}
- B29C 65/08: using ultrasonic vibrations {(non-plastics element to plastics elements B29C65/645)}
- B29C 65/58: Snap connection
- B29C 66/71: {characterised by the composition of the plastics material of the parts to be joined (welding bar compositions B29C65/125)}
- B29K 2995/0029: Translucent
- B29L 2031/712: {Containers; Packaging elements or accessories, Packages (closures therefor B29L2031/56; ink or toner cartridges B29L2031/7678; squeeze tubes B29L2023/20; suitcases B29L2031/7418)}
- B29L 2031/722: {Decorative or ornamental articles}
- Y10T 428/1352: Polymer or resin containing [i.e., natural or synthetic]
- Y10T 428/139: Open-ended, self-supporting conduit, cylinder, or tube-type article
- Y10T 428/1393: Multilayer [continuous layer]
- Y10T 428/24198: Channel-shaped edge component [e.g., binding, etc.]
- Y10T 428/24215: Acute or reverse fold of exterior component
- Y10T 428/24264: Particular fold structure [e.g., beveled, etc.]
- Y10T 428/24802: Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
- Y10T 428/24893: including particulate material
- Y10T 428/24901: including coloring matter
- A45D: HAIRDRESSING OR SHAVING EQUIPMENT (wigs, toupees or the like A41G3/00, A41G5/00; hairdressers' chairs A47C1/04; hair cutting appliances, razors B26B); EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
- B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00)
- B65D: CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B29K: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR {MOULDS, } REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29L: INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

A synthetic resin article includes a translucent or semitranslucent external portion (10) and an internal portion (1) having on its external surface an ornament, in particular a gold or silver metallization. The external and internal portions (10 and 1) comprise complementary assembly structure (8, 14; 5, 11) and are assembled by wedging and ultrasonic welding. The internal portion (1) is formed of a thermoplastic resin selected from the group consisting of polyolefin, polyamide, PVC, polyethylene terephthalate and methylpentene resins. The external portion (10) is constituted of a translucent or semitranslucent synthetic resin. The internal portion (1) is a tubular element comprising a bottom (2) of larger transverse cross section than a tubular portion (3) of the internal portion (1) and which has a bent-back edge (4) extending along the tubular portion (3) of the tubular element creating a recess (5). The tubular element has at its open end opposite this bottom (2) a projection (8) on its external surface and the external portion (10) is a tubular element of dimensions corresponding to those of the internal portion (1), of which one of the ends has a projection (11) from its internal surface disposed in the recess (5) of the internal portion (1) and whose other end has an edge (15) bent back toward the interior of the tubular element creating a recess (14) in which is disposed the projection (8) of the internal portion (1).

## Claims

### Claim 1

A synthetic resin article comprising:
a translucent external portion;
an internal portion having an ornament on its external surface;
said external portion and said internal portion each comprising complementary assembly means and being assembled by contacting the complementary assembly means of the external portion to the assembly means of the internal portion, and by ultrasonically welding the internal and external portions together; said external and internal portions being in contact along their whole lengths, said internal portion being a tubular element having a tubular portion and a bottom, said bottom having a transverse cross section larger than that of the tubular portion and a bent-back edge disposed around the perimeter of said bottom creating a recess between said bent-back edge and said tubular portion; said tubular element having at its open end opposite said bottom a projection on its external surface, and the external portion being a tubular element of slightly larger cross section than that of the internal portion, one of the ends of said external portion having a projection from its internal surface disposed in said recess of the internal portion and having another end which has an edge bent back toward the interior of the external portion creating a recess in which is disposed said projection of the internal portion, and wherein the overall appearance of the article is determined by the external portion and by the external surface of the internal portion visible through the external portion.

### Claim 2 (depends on 1)

A synthetic resin article according to claim 1, wherein said ornament is a metallization.

### Claim 3 (depends on 1)

A synthetic resin article according to claim 1, wherein the internal portion is formed of a thermoplastic resin.

### Claim 4 (depends on 3)

A synthetic resin article according to claim 3, wherein the thermoplastic resin is selected from the group consisting of polyolefin, polyamide, PVC, polyethylene terephthalate, and methylpentene resins.

### Claim 5 (depends on 1)

A synthetic resin article according to claim 1, wherein the external portion is constituted of a synthetic resin.

### Claim 6 (depends on 1)

A synthetic resin article according to claim 1, wherein the external portion is provided with decorative reliefs on its external surface.