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Patent Searching and Data


Title:
LAMINATE AND SEPARATION THEREOF
Document Type and Number:
Japanese Patent JPH05269906
Kind Code:
A
Abstract:

PURPOSE: To achieve preservation of the environment by easily separating and recovering a used laminate at the time of disposal by adding a foamable substance to the adhesive layer of a laminate consisting of paper, a synthetic resin or the like.

CONSTITUTION: An adhesive layer 3 containing a foamable substance is provided on a laminating element 1 such as paper, a metal foil or a synthetic resin film to laminate the laminating element 1 to other laminating element 2 to form a laminate. This laminate is heated corresponding to the foaming temp. of the adhesive layer 3 after use by a hot roller or an oven to foam the foamable substance 3. The bonding strength of the laminating elements 1, 2 is lowered to easily release the laminating elements 1, 2. As a result, the laminating elements can be easily separated and recovered.


Inventors:
守満 美紀
Application Number:
JP6848592A
Publication Date:
October 19, 1993
Filing Date:
March 26, 1992
Export Citation:
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Assignee:
凸版印刷株式会社
International Classes:
B32B5/18; B32B7/12; B32B27/10; B32B43/00; (IPC1-7): B32B5/18; B32B7/12; B32B27/10; B32B35/00