Bayhydur® 304 is hydrophilically modified, aliphatic polyisocyanate based on hexamethylate diisocyanate (HDI). It is as the hardener/binder component for high-quality waterborne polymer dispersions and as an additive to improve the property level of waterborne coating and adhesive systems. This product has a NCO content of 18.2 ± 0.5, a viscosity at 23°C of 4,000 ± 1,500, a hazen color value of ≤ 60, and a monomeric HDI content of < 0.15. This product is used mainly as the crosslinking partner for waterborne polyol binders (Bayhydrol®) and as a crosslinker for largely pH-neutral waterborne polymer dispersions, including polyurethane (Dispercoll® U), polyvinyl acetate, polyacrylate and synthetic rubber dispersions.
拜耳材料生產膠黏劑原料，用於制備交通、家具、鞋、包裝和建築市場用觸敏和熱活化膠黏劑，反應性和熱熔膠粘劑。拜耳提供基於聚氨酯和氯丁橡膠的全面產品系列，包括能夠提供耐紫外線和耐候性的特種原材料。
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Covestro (formerly Bayer MaterialScience) 科思创目前只在以下作出標識的區域展示其產品資料：
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