发明授权
US6162492A Multi-layer correction and/or marking material, process for its production and its use 失效
多层校正和/或标记材料,其生产和使用过程

Multi-layer correction and/or marking material, process for its
production and its use
摘要:
The description relates to a process for producing a multi-layer correcting and/or marking material. In said process, a film is applied to a substrate which can be released therefrom and in particular contains a dye and/or pigment. A further layer containing an adhesive is then applied over the film thus obtained. The removable film is applied in the form of an aqueous suspension containing a brittle and a film-forming binder. The process makes it possible to dispense with organic solvents. A correcting or marking agent thus produced exhibits good tear-off properties.
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