# US 10,369,770 B2 · Molded article covered with film

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- Number: US 10,369,770 B2
- Document ID: US10369770B2
- Status: Granted
- Kind: B2
- Application number: 14/848,735
- Filed: 2015-09-09
- Published: 2015-12-31
- Granted: 2019-08-06
- Earliest claimed: 2015-09-09
- Assignees: Riken Technos Corporation
- Applicants: Riken Technos Corporation
- Inventors: Yasuhiro Suzuki
- Web page: https://patentgrep.com/patent/US10369770B2

## CPC

- B32B 37/0023: {around holes, apertures or channels present in at least one layer}
- B29C 51/10: Forming by pressure difference, e.g. vacuum
- B29C 51/16: Lining or labelling
- B29C 53/00: Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor (B29C61/10 takes precedence)
- B29C 66/022: {Mechanical pre-treatments, e.g. reshaping}
- B32B 7/12: using interposed adhesives or interposed materials with bonding properties
- B32B 37/0007: {involving treatment or provisions in order to avoid deformation or air inclusion, e.g. to improve surface quality}
- B32B 37/10: characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
- B29C 51/04: Combined thermoforming and prestretching, e.g. biaxial stretching
- B29C 51/14: using multilayered preforms or sheets
- B29C 51/421: {of preforms, specially adapted for thermoforming (preheating sheets in general B29B13/023; B29C51/427 takes precedence)}
- B29C 2791/006: Using vacuum
- B29K 2105/0097: {Glues or adhesives, e.g. hot melts or thermofusible adhesives}
- B29L 2009/00: Layered products
- B29L 2031/722: {Decorative or ornamental articles}
- Y10T 156/1002: with permanent bending or reshaping or surface deformation of self sustaining lamina
- Y10T 428/24355: Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.]
- B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- 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)
- 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

PURPOSE: The present invention provides a molded article which comprises a substrate whose surface is covered with a film, has good appearance, and does not deteriorate in the appearance even in severe environment where the article is actually used, such as high-temperature environment. CONSTITUTION: A molded article comprising a substrate whose surface is partially or wholly covered with a film, wherein the film has an adhesive layer, the adhesive layer is in contact with the substrate and the surface of the substrate, which surface is in contact with the adhesive layer, has a surface roughness (A) of 3 to 20 μm.

## Claims

### Claim 1

A method for producing a molded article comprising a substrate whose outer surface is partially or wholly covered with a film, wherein the film has an adhesive layer and the adhesive layer is in contact with the outer surface of the substrate and the outer surface of the substrate has a surface roughness (A) of 3 to 20 μm, comprising a step of partially or wholly coveting the outer surface of the substrate with the film, wherein the adhesive layer on the film has a surface to be brought into contact with the substrate, the surface of the adhesive layer to be brought into contact with the substrate having a surface roughness (B) of 3 to 20 μm before the covering, wherein each of the surface roughness (A) and the surface roughness (B) is a mean maximum height (Rtm) obtained by extracting any part with an evaluation length L from a roughness profile, dividing the length L into five sections having equal lengths, measuring a maximum height from a bottom to a top in the roughness profile in each of the five sections and averaging the maximum heights of the five sections.

### Claim 2 (depends on 1)

A method for producing a molded article according to claim 1, wherein the covering is carried out by vacuum forming or vacuum and pressure forming.

### Claim 3

A method for preparing a film-covered molded article, comprising:
providing a substrate having an outer surface with a surface roughness of from 3 to 20 μm;
providing a thermoplastic resin film comprising an adhesive layer having an outer surface with a surface roughness of from 3 to 20 μm; and
partially or wholly covering the outer surface of the substrate with the film so that the outer surface of the film adhesive layer contacts the outer surface of the substrate;
wherein each surface roughness is a mean maximum height (Rtm) obtained by extracting any part with an evaluation length L from a roughness profile, dividing the length L into five sections having equal lengths, measuring a maximum height from a bottom to a top in the roughness profile in each of the five sections and averaging the maximum heights of the five sections.

### Claim 4 (depends on 3)

The method of claim 3, wherein deaeration occurs between the substrate outer surface and the adhesive layer outer surface.

### Claim 5 (depends on 3)

The method of claim 3, wherein the thermoplastic resin is a polyvinyl chloride, non-crystalline polyester, or acrylic resin.

### Claim 6

A method for producing a molded article comprising a substrate whose outer surface is partially or wholly covered with a film, wherein the film has an adhesive layer, the adhesive layer is in contact with the outer surface of the substrate and the outer surface of the substrate has a surface roughness (A) of 3 to 20 μm, comprising a step of partially or wholly covering the surface of the substrate with the film, wherein the covering is carried out by vacuum forming or vacuum and pressure forming, wherein the surface roughness (A) is a mean maximum height (Rtm) obtained by extracting any part with an evaluation length L from a roughness profile, dividing the length L into five sections having equal lengths, measuring a maximum height from a bottom to a top in the roughness profile in each of the five sections and averaging the maximum heights of the five sections.

### Claim 7 (depends on 1)

The method of claim 1, wherein the surface of the adhesive layer to be brought into contact with the substrate is roughened to have a surface roughness (B) of 3 to 20 μm.