Patent EP0232033A2 successfully refreshed from Google Patents.
EP0232033A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Transparent electrically conductive plastic molded articles
Assignee: Sumitomo Chemical Co Ltd
•
Filing: 1987-01-19
•
Granted: —
•
Expires: 2007-01-19
Abstract
Abstract An electrically conductive article having excellent transparency, antistatic property and abrasion resistance comprises a transparent plastics moulded article, an electrically conductive coat layer comprising 60 - 80% by weight of an electrically conductive powder mainly composed of tin oxide and 40 - 20% by weight of a resin component, and a topcoat layer comprising 0 - 50% by weight of an electrically conductive powder mainly composed of tin oxide and 100 - 50% by weight of a resin component.
Inventors
- 👤 Toshiki Doi
- 👤 Masanori Moriwaki
- 👤 Yukio Yasunori
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 12:25
CPC Classifications
H; H01; H01B; H01B1/00; H01B1/20; C; C09; C09D; C09D5/00; C09D5/24; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10T; Y10T428/00; Y10T428/24; Y10T428/24942; Y10T428/2495; Y10T428/24967; Y10T428/24975; Y10T428/25; Y10T428/256; Y10T428/31
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
71 words
An electrically conductive article comprising a transparent plastics molded article, an electrically conductive coat layer comprising 60 - 80% by weight of an electrically conductive powder mainly composed of tin oxide and 40 - 20% by weight of a resin component, and a topcoat layer comprising 0 - 50% by weight of an electrically conductive powder mainly composed of tin oxide and 100 - 50% by weight of a resin component.
Claim 2
Dependent Claim
71 words
An electrically conductive article comprising a transparent plastics molded article, an electrically conductive coat layer comprising 60 - 80% by weight of an electrically conductive powder mainly composed of tin oxide and 40 - 20% by weight of a resin component, and a topcoat layer comprising 0 - 50% by weight of an electrically conductive powder mainly composed of tin oxide and 100 - 50% by weight of a resin component.
Claim 3
Dependent Claim
56 words
An article according to claim 1 wherein the topcoat layer comprises 0 - 2% by weight of the electrically conductive powder and 100 - 98% by weight of the resin component, the topcoat layer has a thickness of 1 pm or less and the electrically conductive coat layer has a thickness of 5 pm or less.
Claim 4
Dependent Claim
31 words
An article according to claim 1 wherein the topcoat layer comprises 2 - 50% by weight of the electrically conductive powder and 98 - 50% by weight of the resin component.
Claim 5
Dependent Claim
32 words
An article according to claim 3 wherein the topcoat layer has a thickness of 10 pm or less and the electrically conductive coat layer has a thickness of 5 µm or less.
Claim 6
Dependent Claim
37 words
An article according to any one of the preceding claims wherein the resin component of the electrically conductive coat layer and the topcoat layer is an abrasion resistant resin hardened by light, activated energy rays or heat.
Claim 7
Dependent Claim
16 words
An article according to claim 5 wherein the resin component is a crosslinking- hardenable resin material.
Claim 8
Dependent Claim
20 words
An article according to claim 6 wherein the resin material contains at least 2 acryloyl or methacryloyl groups per molecule.
Claim 9
Dependent Claim
20 words
An article according to claim 1 wherein the electrically conductive powder has a particle diameter of 0.2 pm or less.
Claim 10
Dependent Claim
121 words
A method for making an electrically conductive article as claimed in claim 1 which comprises coating the surface of a transparent molded article with a coating composition comprising 60 - 80% by weight of an electrically conductive powder mainly composed of tin oxide and 40 - 20% by weight of a resin component and then hardening the coat by application of light, activated energy rays or heat to form the electrically conductive coat layer and then coating thereon a coating composition comprising 0 - 50% by weight of an electrically conductive powder mainly composed of tin oxide and 100 - 50% by weight of a resin component by application of light, activated energy rays or heat to form the topcoat layer.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.