Ppg Coatings Europe Bv

Ppg Coating Europe B.v.

Thomas De Boer

Ronnie Peskens

Venkateshwarlu Kalsani

Seiko Sisco

Brianne Hodanich

Self-crosslinkable binder compositions which include a copolymer obtained by reacting a mixture of monomers in the presence of an organic solvent, wherein the monomer mixture includes a carboxylic acid monomer, a polymerizable ethylenically unsaturated monomer, and a crosslinkable acrylamide monomer. Intumescent coatings containing the self-crosslinkable binder, and substrates coated with the intumescent coatings are also disclosed.

Crosslinkable binders for solvent based intumescent coatings

An intumescent coating composition that includes an epoxy resin binder, an epoxy reactive diluent, a curing agent and an acid catalyst. The curing agent includes a mixture of polyimide, polyetheramine, and an amine functional monomer, wherein the amine multifunctional monomer is different from the polyetheramine. The acid catalyst is effective to form a phosphoric acid on thermal decomposition. The coating composition has a viscosity of between 20,000 and 140,000 mPa/s at 20&#xb0; C. and shear rate 1.5 swhen measured within 1 minute of mixing the components. The invention also includes a coated substrate having the intumescent coating composition coated on at least a portion thereof.

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Halfweg, Netherlands

Thomas De Boer