Release Coating Composition for Low-Platinum Curing on Inhibitory Substrates

The patent introduces an organic peroxide as an intermediary substance that mediates between the platinum catalyst and the alkenyl groups. The peroxide decomposes to form radicals that initiate addition reactions, allowing the platinum catalyst to work at lower concentrations while still achieving complete curing. This resolves the contradiction by enabling effective catalysis without requiring high catalyst loads, thus reducing manufacturing cost while maintaining curing completeness.

The patent changes the reaction mechanism parameters by introducing radical chemistry through organic peroxide decomposition. This shifts the cure process from purely catalytic to radical-initiated addition reactions, allowing platinum catalysts to operate at reduced concentrations. The parameter change enables complete curing at lower catalyst levels, addressing both curing reliability and manufacturing cost concerns.

The organic peroxide acts as a protective intermediary that shields the platinum catalyst from inhibition by nitrogen-containing compounds. The peroxide initiates radical reactions that proceed independently of the platinum catalyst's activity, creating a cure pathway that is resistant to catalyst poisons. This allows the system to maintain curing effectiveness even in the presence of harmful components that would normally inhibit platinum catalysts.

The patent converts the harmful effect of catalyst-poisoning components into a benefit by using the organic peroxide to create an alternative cure mechanism. The presence of inhibitors that would normally prevent platinum catalysis actually highlights the advantage of the radical-initiated pathway, which proceeds effectively despite the inhibitors. This transforms the harmful factor into a demonstration of the system's robustness.

The patent utilizes the phase transition and decomposition of the organic peroxide to initiate rapid radical formation. The peroxide decomposes thermally to generate radicals that immediately initiate addition reactions between the alkenyl groups and hydrogen-containing groups. This phase transition approach creates a rapid self-accelerating cure process, reducing cure time while ensuring complete film formation.

The organic peroxide functions as a strong oxidizing agent that accelerates the curing reaction by generating highly reactive radicals. These radicals rapidly initiate and propagate addition reactions across the polymer matrix, creating a fast-curing system. The strong oxidizing capability of the peroxide provides immediate reaction initiation and acceleration, dramatically reducing cure time compared to conventional platinum-catalyzed methods.