EP0194555A2
Expired / Lapsed
EP
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Process for producing a laminate
Assignee: AGC Inc
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Filing: 1986-03-04
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Granted: —
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Expires: 2006-03-04
Abstract
Abstract A process for producing a laminate comprising a sheet material and a plastic film laminated on at least one side of the sheet material, which comprises vacuum-packaging the sheet material by a vacuum packaging film material, of which at least the portion corresponding to said side of the sheet material is made of a plastic film to be laminated on the sheet material, press-bonding the plastic film to the sheet material, and removing the film material from the sheet maierial except for the plastic film portion laminated on the sheet material.
Inventors
- 👤 Kenichi Ishikawa
- 👤 Koji Kurita
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-25 21:40
CPC Classifications
B; B32; B32B; B32B17/00; B32B17/06; B32B17/10; B32B17/10005; B32B17/10009; B32B17/10018; B32B17/10027; B29; B29C; B29C51/00; B29C51/16; B29C63/00; B29C63/02; B29C63/16; B32B17/10807; B32B17/10816; B32B17/10825; B32B17/10834; B32B17/10844; B32B17/10853; B32B37/00; B32B37/10; B32B37/1018; B32B2309/00; B32B2309/60; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1028; Y10T156/103; Y10T156/1052; Y10T156/108
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
91 words
A process for producing a laminate comprising a sheet material and a plastic film laminated on at least one side of the sheet material, which comprises vacuum-packaging the sheet material by a vacuum packaging film material, of which at least the portion corresponding to said side of the sheet material is made of a plastic film to be laminated on the sheet material, press-bonding the plastic film to the sheet material, and removing the film material from the sheet material except for the plastic film portion laminated on the sheet material.
Claim 2
Dependent Claim
91 words
A process for producing a laminate comprising a sheet material and a plastic film laminated on at least one side of the sheet material, which comprises vacuum-packaging the sheet material by a vacuum packaging film material, of which at least the portion corresponding to said side of the sheet material is made of a plastic film to be laminated on the sheet material, press-bonding the plastic film to the sheet material, and removing the film material from the sheet material except for the plastic film portion laminated on the sheet material.
Claim 3
Dependent Claim
48 words
The process for producing a laminate according to Claim 1, wherein the vacuum packaging film material is in the form of a bag, and the vacuum packaging is conducted by vacuuming the bag containing the sheet material, and sealing the vacuumed bag to obtain a vacuum-packaged sheet material.
Claim 4
Dependent Claim
21 words
The process for producing a laminate according to Claim 2, wherein the sealing of the vacuumed bag is conducted by heat-sealing.
Claim 5
Dependent Claim
27 words
The process for producing a laminate according to Claim 1, wherein the press-bonding is conducted by applying an external pressure to the vacuum-packaged sheet material under heating.
Claim 6
Dependent Claim
21 words
The process for producing a laminate according to Claim 2, wherein the press-bonding is conducted by heating the vacuum-packaged sheet material.
Claim 7
Dependent Claim
21 words
The process for producing a laminate according to Claim 2, wherein the press-bonding is conducted under heating during the vacuuming operation.
Claim 8
Dependent Claim
70 words
The process for producing a laminate according to Claim 2, wherein the bag containing the sheet material is introduced into a vacuum chamber, the interior and exterior of the bag are simultaneously vacuumed in the vacuum chamber, then the vacuumed bag is sealed, then the exterior of the bag is returned to atmospheric pressure, and thereafter the plastic film is press-bonded to the sheet material under y V4 ·Irae heating.
Claim 9
Dependent Claim
46 words
The process for producing a laminate according to Claim 2, wherein one side of the bag is made of a plastic film to be laminated on the sheet material and the other side of the bag is made of a film other than the plastic film.
Claim 10
Dependent Claim
117 words
The process for producing a laminate according to Claim 1, wherein the vacuum packaging film material is a pair of film sheets disposed in a vacuum chamber, of which at least one is the plastic film to be laminated on the sheet material, and the vacuum packaging is conducted by inserting the sheet material between the pair of film sheets, vacuuming the vacuum chamber to let the films enclose the sheet material and sealing the periphery of the films under the vacuumed condition to obtain a vacuum-packaged sheet material, and after the press-bonding of the plastic film to the sheet material, the peripery of the plastic film is cut off along the outline of the sheet material.
Claim 11
Dependent Claim
102 words
1 0. The process for producing a laminate according to Claim 9, wherein one of the pair of film sheets is the plastic film to be laminated on the sheet material and the other is a film other than the plastic film, the other film is disposed to divide the--vacuum chamber into two compartments, the sheet material is inserted between the plastic film and the other film in one compartment, the entire vacuum chamber is then vacuumed, the two films are then brought close together to enclose the sheet material and the periphery of the films is sealed under the vacuumed condition.
Claim 12
Dependent Claim
49 words
1 1. The process for producing a laminate according to Claim 1 0, wherein the enclosing and sealing operations are conducted by releasing the other compartment from the vacuumed condition, while maintaining the vacuumed condition of the first compartment in which the sheet material and plastic film are located.
Claim 13
Dependent Claim
25 words
The process for producing a laminate according to Claim 10, wherein the sealing operation is conducted by heat-sealing the other film to the plastic film.
Claim 14
Dependent Claim
68 words
The process for producing a laminate according to Claim 10, wherein a support table is located in the vacuum chamber, the plastic film is placed on the support table and the sheet material is placed on the plastic film, and the support table is moved towards the other film to enclose the sheet material with the two films, followed by the sealing of the periphery of the films.
Claim 15
Dependent Claim
22 words
The process for producing a laminate according to Claim 1 , wherein the plastic film to be laminated is made of polyurethane.
Claim 16
Dependent Claim
35 words
The process for producing a laminate according to Claim 1, wherein the plastic film to be laminated has embosses with a depth of from 0.1 to 5 µm on its surface facing the sheet material.
Claim 17
Dependent Claim
18 words
The process for producing a laminate according to Claim 1, wherein the sheet marterial is a glass sheet
References Cited (Backward Citations)
No citation records indexed.
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