Most organic metal catalysts such as bismuth, zinc and tin catalyst commonly used in polyurethane have hydrolysis failure in varying degrees. When premixed into aqueous raw materials, the catalytic activity gradually decreases until it is lost within a few days or even just a few hours. For example, the hydrolysis resistant tin catalyst with special structure has a stable storage period of only more than one month, and ordinary bismuth quickly hydrolyzes and loses catalytic activity within a few hours. As an important functional assistant, the hydrolysis failure of catalyst not only leads to inconvenient use, but also greatly hinders the innovation and development of polyurethane in some fields.
After years of unremitting efforts, Yunrun has pioneered the development of AUCAT series of hydrolysis resistant eco-friendly organometallic catalysts, which can be used in all fields of polyurethane, such as foam, coating, leather, elastomer and so on. Typical characteristics are as follows:
◆ Hydrolysis resistant. Stable storage in aqueous system, hydrolysis resistance, long-term storage, catalytic activity does not decay.
◆ Targeted catalytic feature. It selectively catalyzes the reaction of hydroxyl and isocyanate, with high strength, no bubbles and high gloss.
◆ Strong gel and high catalytic activity. Substitute for Tin catalyst, be used in all PU fields such as foam, coating, adhesive, PU leather, elastomer, etc. It is especially suitable for foam as strong gelling catalyst.
◆ Eco-friendly and tin free. Meet the needs of toys, shoe materials, clothing, coatings and other export products.