PTS Acid: Strong Catalyst

KETENFLEX® CP accelerates cationic curing mechanisms in epoxy resins. It can be combined with tertiary amines for low temperature cure epoxy systems.

Acid cured amino resins are typically used in wood coatings for indoor use such a floors. In being essentially a 2 component system, KETJENFLEX® CP forms the hardener component accelerating the cure of the resin. Typically KETJENFLEX® CP is added at 2% to 3% based on solids to provide maximum cure response. Care should be taken not to overdose as it will cause hydrolysis of the resin forming butyric acids and other components.

Melamine systems KETJENFLEX® CP is used to promote the crosslinking of hydroxyl-functional polymers with amino-formaldehyde crosslinking agents such as hexamethoxymethyl melamine, especially in coil coatings. In coil primers, KETJENFLEX® CP provides outstanding cure, viscosity stability upon oven aging, and corrosion/salt spray resistance and provide excellent adhesion/intercoat adhesion of the coating. Typical addition rate are 2 to 3% based on solids. KETJENFLEX® CP can also be used in aqueous melamine based veneers.

Stabilizer in isocyanate polymers Isocyanate prepolymers are usually viscous liquids, manufactured in mixed batch reactors. Being relatively reactive an acid stabilizer as KETJENFLEX® CP is added to increase prepolymer stability during stockpiling.

KETJENFLEX® CP is a standard catalyst in many condensation reaction to produce fine chemicals as such the following reactions are catalyzed by KETJENFLEX® CP:
• Fatty acid esterification
• Aldol and enol reactions
• Nitrosations of alkenes
• Synthesis of azo dyes
• Synthesis of various other dyes and pigments

KETJENFLEX® CP is used as a pH regulator in electroplating processes. KETJENFLEX® CP (in combination with nitric acids) can be used for what is called the ‘bright dip’ giving a shiny surface to copper, silver, gold, chrome and nickel electroplated meta.

Synthesis of various other dyes and pigments.