Filing Information

Inventor(s)	Kazufumi Ogawa ·
Assignee(s)	Matsushita Electric Industrial Co., Ltd. ·  View assignee updates
Attorney/Agent(s)	Fish & Richardson ·
Primary Examiner	Nakarani; D. S. ·
Application Number	US8110704
Filing date	08/20/1993
Issue date	09/12/1995
Predicted expiration date	08/20/2013
U.S. Classifications	428/333  · 427/399  ·
International Classifications	B32B 704  ·
Kind Code	A
International Classifications	427399;402 ·
Foreign Priority	JP4230870 - 08/31/1992 ·

Patent Family

Abstract

In a molecule of a monomolecular film, a metal complex is introduced to form an antistatic film. This film is desirably transparent, durable, extremely thin and weakly conductive. The method of manufacturing an antistatic film involves (i) exposing a substrate with an active hydrogen atom thereon to a chemical adsorbent containing a straight carbon-chain group with a silyl group at one end and a phosphonate or carboxyl group at the other end to form a chemically adsorbed monomolecular film, and (ii) soaking the monomolecular film in a solution of a metal salt to form a film containing a complex of the metal element. An antistatic multi-monomolecular film can also be formed by laminating the monomolecular films using hydroxyl groups each bonding to the metal element in each monomolecular film.

Independent Claims | See all claims (12)

1. 1. An antistatic film comprising a molecule with a straight carbon-chain group chemically adsorbed and bonded to a substrate via a covalent bond, the film being a monomolecular film or a multi-monomolecular film, wherein said molecule with a straight carbon-chain group comprises at least one metal complex selected from the group consisting of a metal-phosphonate complex and a metal-carboxy complex.
2. 6. A method of manufacturing an antistatic film comprising the steps of:subjecting a substrate having an active hydrogen-containing group on its surface to a condensation reaction with a chemical adsorbent containing a straight carbon-chain group with a silyl group at a first end and one group selected from the group consisting of a phosphonate group and a carboxyl group at a second end to form a monomolecular film; andsoaking said monomolecular film in a solution of a metal salt to react said one group selected from the group consisting of a phosphonate group and a carboxyl group on said monomolecular film with said metal salt to form a metal complex.