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 Foundation material for use with putty and manufacturing method therefor

Details
Inventors: Yahiro, Nobuyuki; Nakagawa, Sonoe; Kawase, Shinichiro; Sato, Shiro; Akita, Kiyoshi; Kise, Kazuhiko;
Assignee: Fukuvi Chemical Industry Co., Ltd. (Fukui-Ken, JP)
Primary Examiner: Kent; Christopher
Assistant Examiner: Horton-Richardson; Yvonne
Attorney, Agent or Firm: Jacox, Meckstroth & Jenkins

This foundation material 1 comprises a substrate 2 having a sheet form, and a surface modifying layer on at least front surface of said substrate comprising 2.about.30 parts by weight of a film formation aiding agent for every 100 parts by weight of a resin having a hydrophilic functional group. In addition, this foundation material 1 is manufactured by forming substrate 2 by extrusion molding a synthetic resin, laminating at least a front surface of substrate 2 with a surface modifying agent comprising 2.about.30 parts by weight of a film formation aiding agent for every 100 parts by weight of a resin having a hydrophilic functional group, and drying the thus formed laminated substrate.

DETAILED DESCRIPTION The present invention comprises a foundation material which can be arranged on walls of buildings, and putty applied to the surface thereof.
This foundation material comprises, a substrate that has a sheet form, and, on at least front surface of the above-mentioned substrate, a surface modifying layer which contains 2.
about.
30 parts by weight of a film formation aiding agent for every 100 parts by weight of a resin which has a hydrophilic functional group.
In the following, the surface of the substrate which is toward the wall of the building when arranged on the wall is called the back surface, and the surface of the wall which is away from the wall when arranged on the wall and to which putty is applied is called the front surface.
The thickness of the above-mentioned surface modifying layer is preferably 1.
about.
20 .
mu.
m.
In addition, in the above-mentioned foundation material, a plurality of apertures can be formed which gradually increase in diameter or incline from the front surface toward the back surface.
On the other hand, the above-mentioned substrate can be formed by means of unitarily molding sheet portions which can be respectively attached to the above-mentioned wall surfaces with a corner of the above-mentioned walls forming a boundary, and a plastically deformable hinge which joins these sheet portions to each other and runs along the above-mentioned corner.
In this situation, it is preferable for the proportion of plasticizing agent contained in the above-mentioned hinge to be 10.
about.
35% by weight.
In addition, a predetermined angle can be formed in the above-mentioned hinge in advance.
The present invention also relates to a manufacturing method for the above-mentioned foundation material and, in particular, the formation of a surface modifying layer, based on a surface modifying agent, on at least the surface of the above-mentioned substrate.
This surface modifying layer is formed by means of forming a substrate by extrusion molding a synthetic resin; laminating at least a front surface of this substrate with the above-mentioned surface modifying agent which contains 2



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