EP0121391B1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Method for peel development
Assignee: Nitto Denko Corp
•
Filing: 1984-03-26
•
Granted: 1989-08-02
•
Expires: 2004-03-26
Abstract
No abstract record available.
Inventors
- 👤 Yutaka Nitto Electric Ind. Co. Ltd. Yamamura
- 👤 Shunichi Nitto Electric Ind. Co. Ltd. Hayashi
- 👤 Tomomichi Nitto Electric Ind. Co. Ltd. Kaneko
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-02 20:14
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/26; G03F7/34; G03F7/343; B; B29; B29C; B29C63/00; B29C63/0004; B29C63/0013; H; H05; H05K; H05K3/00; H05K3/0073; H05K3/0079; H05K2201/00; H05K2201/01; H05K2201/0104; H05K2201/0108; H05K2203/00; H05K2203/05; H05K2203/0502; H05K2203/0537
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
120 words
A method of peel development comprising: (a) laminating an image-forming material comprising a transparent support and a photopolymerizable composition layer on the surface of a substrate on which an image is formed; (b) imagewise exposing the image-forming material; and then (c) peeling away the support and the unexposed areas of the photopolymerizable composition layer from the substrate to retain the exposed areas thereof on the substrate, wherein the cohesive strength of the photopolymerizable composition layer is set such that the force required to separate the unexposed areas from the exposed areas is at least 1.0 kg/mm 2 and the peeling operation is performed while maintaining a peel angle (a) of the support to the substrate within the range of 0°<aZ90°.
Claim 2
Independent Claim
120 words
A method of peel development comprising: (a) laminating an image-forming material comprising a transparent support and a photopolymerizable composition layer on the surface of a substrate on which an image is formed; (b) imagewise exposing the image-forming material; and then (c) peeling away the support and the unexposed areas of the photopolymerizable composition layer from the substrate to retain the exposed areas thereof on the substrate, wherein the cohesive strength of the photopolymerizable composition layer is set such that the force required to separate the unexposed areas from the exposed areas is at least 1.0 kg/mm 2 and the peeling operation is performed while maintaining a peel angle (a) of the support to the substrate within the range of 0°<aZ90°.
Claim 3
Dependent Claim
16 words
The method of Claim 1, wherein the peel angle (a) is within the range of 60°≦α≦90°.
Claim 4
Dependent Claim
18 words
The method of Claim 1 or Claim 2, wherein the force is 1.0 to 2.0 kg/mm 2 .
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.