EP0144065A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Laminated safety glass
Assignee: AGC Inc
•
Filing: 1984-11-28
•
Granted: —
•
Expires: 2004-11-28
Abstract
Abstract Transparent or translucent laminated safety glass having an at least two-layered structure, in which one outer layer is a relatively soft synthetic resin layer and the other outer layer is a hard substrate layer, characterized in that said relatively soft synthetic resin layer comprises: a surface layer of a reformed polyurethane type thermoplastic resin obtained by impregnating a polymerizable compound containing a polymerizable unsaturated group into a polyurethane type thermoplastic resin and polymerizing the compound; and an inner layer of a polyurethane type thermoplastic resin which is continuous or non-continuous with said surface layer.
Inventors
- 👤 Hiroyuki Watanabe
- 👤 Hiroshi Washita
- 👤 Toshio Ickiki
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-27 16:25
CPC Classifications
B; B32; B32B; B32B17/00; B32B17/06; B32B17/10; B32B17/10005; B32B17/1055; B32B17/10706; B32B17/10009; B32B17/10018; B32B17/1077; B32B17/10807; B32B17/10899; B32B17/10908; B32B17/10917; Y; Y10; Y10T; Y10T428/00; Y10T428/31; Y10T428/31504; Y10T428/31536; Y10T428/31551; Y10T428/31554; Y10T428/31598; Y10T428/31601
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
94 words
Transparent or translucent laminated sa:ety glass having an at least two-layered structure, in which one outer layer is a relatively soft synthetic 'esin layer and the other outer layer is a hard substra.e layer, characterized in that said relatively soft ynthetic resin layer comprises: a surface layer of a reformed polyurethane type thermoplastic resin obtaied by impregnating a polymerizable compound contaning a polymerizable unsaturated group into a polyrethane type thermoplastic resin and polymerizing the corpound; and an inner layer of a polyurethane type thermoplatic resin which is continuous or non-continuous with stid surface layer.
Claim 2
Dependent Claim
94 words
Transparent or translucent laminated sa:ety glass having an at least two-layered structure, in which one outer layer is a relatively soft synthetic 'esin layer and the other outer layer is a hard substra.e layer, characterized in that said relatively soft ynthetic resin layer comprises: a surface layer of a reformed polyurethane type thermoplastic resin obtaied by impregnating a polymerizable compound contaning a polymerizable unsaturated group into a polyrethane type thermoplastic resin and polymerizing the corpound; and an inner layer of a polyurethane type thermoplatic resin which is continuous or non-continuous with stid surface layer.
Claim 3
Dependent Claim
20 words
The laminated safety glass according to laim 1, characterized in that said polymerizable comound is a polyfunctional acrylate or methacrylate.
Claim 4
Dependent Claim
20 words
The laminated safety glass according to laim 1, characterized in that said polymerizable comound is a polyfunctional acrylate or methacrylate.
Claim 5
Dependent Claim
29 words
The laminated safety glass according to laim 2, characterized in that said polyfunctional acryate or methacrylate is a polyester of a polyhydric aholol with acrylic acid or methacrylic acid.
Claim 6
Dependent Claim
29 words
The laminated safety glass according to laim 2, characterized in that said polyfunctional acryate or methacrylate is a polyester of a polyhydric aholol with acrylic acid or methacrylic acid.
Claim 7
Dependent Claim
19 words
The laminated safety glass according to laim 1, characterized in that said polymerizable corr-und is polymerized by ultraviolet ray.
Claim 8
Dependent Claim
19 words
The laminated safety glass according to laim 1, characterized in that said polymerizable corr-und is polymerized by ultraviolet ray.
Claim 9
Dependent Claim
29 words
The laminated safety glass according to laim 1, characterized in that aid polyurethane typ thermoplastic resin is a polyurthane type termoplastic resin containing no substantial free carboxylic acid group.
Claim 10
Dependent Claim
29 words
The laminated safety glass according to laim 1, characterized in that aid polyurethane typ thermoplastic resin is a polyurthane type termoplastic resin containing no substantial free carboxylic acid group.
Claim 11
Independent Claim
77 words
A method for manufacturing transparent or translucent laminated safety glass having an at least two-layered structure, in which one outer layer is a relatively soft synthetic rsin layer and the other outer layer is a hard substrate layer, characterized in that said relatively soft synthetic resin layer is formed by impregnating a polymerizable compound containing a polymerizable unsaturated group into one surface of a polyurethane type thermoplastic resin constituting the laminated safety glass, and polymerizing said compound.
Claim 12
Independent Claim
77 words
A method for manufacturing transparent or translucent laminated safety glass having an at least two-layered structure, in which one outer layer is a relatively soft synthetic rsin layer and the other outer layer is a hard substrate layer, characterized in that said relatively soft synthetic resin layer is formed by impregnating a polymerizable compound containing a polymerizable unsaturated group into one surface of a polyurethane type thermoplastic resin constituting the laminated safety glass, and polymerizing said compound.
Claim 13
Dependent Claim
23 words
The method for manufacturing laminated safety glass according to Claim 6, characterized in that said polymerizable compound is a polyfunctional acrylate or methacrylate.
Claim 14
Dependent Claim
32 words
The method for manufacturing laminated safety class according to Claim 7, characterized in that said polyfunctional acrylate or methacrylate is a polyester of a polyhydric alcohol with acrylic acid or methacrylic acid.
Claim 15
Dependent Claim
21 words
The method.for manufacturing laminated safety glass according to Claim 6, characterized in that said polymerizable compound is polymerized by ultraviolet ray.
Claim 16
Dependent Claim
32 words
The method for manufacturing laminated safety glass according to Claim 6, characterized in that said polyurethane type thermoplastic resin is a polyurethane type thermoplastic resin containing no substantial free carboxylic acid group.
Claim 17
Independent Claim
94 words
A method for manufacturing transparent or translucent laminated safety glass having an at least two-layered structure, in which one outer layer is a relatively soft synthetic resin layer and the other outer layer is a hard substrate layer, characterized in that a polymerizable compound having a polymerizable unsaturated group is impregnated into one side of a sheet or film of a polyurethane type thermoplastic resin, and then polymerized, and that said sheet or film is then laminated on said hard substrate layer so that the other side, which is not reformed, faces said substrate.
Claim 18
Independent Claim
94 words
A method for manufacturing transparent or translucent laminated safety glass having an at least two-layered structure, in which one outer layer is a relatively soft synthetic resin layer and the other outer layer is a hard substrate layer, characterized in that a polymerizable compound having a polymerizable unsaturated group is impregnated into one side of a sheet or film of a polyurethane type thermoplastic resin, and then polymerized, and that said sheet or film is then laminated on said hard substrate layer so that the other side, which is not reformed, faces said substrate.
Claim 19
Dependent Claim
23 words
The method for manufacturing laminated safety glass according to Claim 11, characterized in that said polymerizable compound is a polyfunctional acrylate or methacrylate.
Claim 20
Dependent Claim
32 words
The method for manufacturing laminated safety glass according to Claim 12, characterized in that said polyfunctional acrylate or methacrylate is a polyester of a polyhydric alcohol with acrylic acid or methacrylic acid.
Claim 21
Dependent Claim
22 words
The method for manufacturing laminated safety glass according to Claim 11, characterized in that said polymerizable compound is polymerized by ultraviolet ray.
Claim 22
Dependent Claim
32 words
The method for manufacturing laminated safety glass according to Claim 11, characterized in that said polyurethane type thermoplastic resin is a polyurethane type thermoplastic resin containing no substantial free carboxylic acid group.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.