Patent Yard Sign in
Expired Canadian patentCanada

Organic polysiloxane liquid coating composition

CA 1329669 C · Owner: Sato, Etsuji · Inventors: Ban, Takashi; Ichihara, Yuji; Enomoto, Suezo

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

Open the CIPO record

Abstract From the Canadian patent

A coating composition comprising a colloidal silica, an organohydroxysilane, a partial condensate of the organohydroxysilane and a liquid medium containing ethylene glycol monobutyl ether in an amount of at least 20 % by weight, which is applied to a substrate shows, excellent properties such as storage stability workability for coating or painting, heat resistance surface hardness, chemical resistance, abrasion resistance, scratch resistance, stain resistance and weather resistance.

Read the whole patent

Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Granted May 17, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 17, 2011.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 2, 1988
GrantedMay 17, 1994
Term endedMay 17, 2011
Patent numberCA 1329669 C
Classification (IPC)C09D201/10 +2 more

Timeline

Timeline From CIPO dates

19891992199519982001200420072010Application filedAug 2, 1988Patent grantedMay 17, 1994Term endedMay 17, 2011

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.