Ppg Industries, Inc.

Thomas A Ward

Jerome A Seiner

Karl F Schimmel

Richard M Nugent, Jr

John P Mikus

Robert W Heber

William G Boberski

Paul P Greigger

Victor G Petracca

Stanley T Greer

Paul D Greigger

Timothy Figore

Lois C Trautvetter

Disclosed is an intumescent curable composition which contains as a resinous binder a flexible polyepoxide resin. The polyepoxide is cured with an appropriate curing agent adapted for the particular resin. An additive component is present which contains a mixture of materials which provide a source of

Flexible intumescent coating composition

A method for protecting heat sensitive substrates from fire and excessive heat involves:

Method for protecting heat sensitive substrates from fire and excessive

A resinous composition is composed of the ungelled reaction product of

Resinous compositions and their formulation into intumescent fire

A method of providing a structural support for a composition on a substrate involves:

Method of providing structural support for compositions

An ungelled composition is prepared as the half-amide reaction product of a diester of oxalic acid and a material containing one or more primary and/or secondary amino groups and one or more different functional groups. The ungelled composition is useful as a crosslinking agent for amine group containing materials and as an intermediate in the preparation of resinous compositions for fire protective coatings.

Half-amide reaction products of dioxalates and amino group containing

An intumescent curable composition has as its principal constituents an epoxy resin; a curing agent; and an additive component which is composed of a mixture of materials which provide a source of phosphorus, zinc, boron and an expansion gas. The aforesaid composition is capable of forming a carbonaceous char upon exposure to heat or flame.

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Gibsonia, PA, United States of America

Thomas A Ward