Functional film
AssigneeTDK Corporation
InventorsKiminori Tamai, Tadayoshi Iijima, Chieko Yamada, Shigeyo Miyamori
Life of this patent
Estimating the term…
Abstract
A functional film of the invention includes a microparticulate-containing layer containing functional microparticulates. The microparticulate-containing layer inhibits the occurrence of cracks even when drawn 10%. When the functional film includes a microparticulate-containing layer containing conductive microparticulates, the microparticulate-containing layer exhibits a surface resistivity after drawn 10% which is at most 10 times greater than the surface resistivity prior to drawing. The invention thus implements a functional film which is unsusceptible to reduction or loss of its function due to deformation.
Claims15
A method for producing functional film, comprising:
- applying a coating liquid having functional microparticulates dispersed therein onto a support, thereby forming a microparticulate-containing coating,
- drying the microparticulate-containing coating,
- compressing the microparticulate-containing coating at a temperature of 15 to 40° C., thereby forming a functional film comprising a compressed microparticulate-containing layer, and
- transferring the functional film onto another support;
- wherein the compressed microparticulate-containing layer does not have cracks and is capable of being drawn 10% without forming cracks;
- and
- wherein the compressed microparticulate-containing layer does not comprise a resin as a binder.
A method for producing a functional film, comprising:
- applying a coating liquid having functional microparticulates dispersed therein onto a support, thereby forming a microparticulate-containing coating,
- drying the microparticulate-containing coating,
- compressing the microparticulate-containing coating at a temperature of 15 to 40° C. thereby forming a functional film comprising a compressed microparticulate-containing layer, and
- transferring the functional film onto another support;
- wherein the compressed microparticulate-containing layer is capable of being drawn 10% and in a 10% drawn state exhibits a surface resistivity which is at most 10 times greater than the surface resistivity prior to drawing;
- and
- wherein the compressed microparticulate-containing layer does not comprise a resin as a binder.
Dependencies are inferred from the claim text.