Research/Patents/US 5284890
US 5284890

SYNTHETIC RUBBER COMPOSITION

Assignee

HER MAJESTY THE QUEEN AS REPRESENTED BY THE MINISTER OF NATIONAL DEFENCE OF HER MAJESTY'S CANADIAN GOVERNMENT

Filed

Jan 31, 1985

Granted

Feb 8, 1994

Location

NEPEAN CA US

Abstract

The invention disclosed relates to an injection mouldable synthetic rubber composition which provides twenty-four hour protection from penetration by H-agent and as such is particularly suitable for use in gas masks. The novel rubber composition comprises a synthetic rubber such as bromobutyl rubber, carbon black and other appropriate additives.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Mar 30, 1987

Rescinded

Mar 24, 1992

Duration

4 years, 12 months

Inventor

  • 1JOHN C. COLLYER
Back to patent indexSource: USPTO 35 USC §181 secrecy order records