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.
拜耳材料生產水性膠黏劑、高固含塗料、先進粉末塗料和特種密封劑行業的原材料。拜耳生產聚碳酸酯和聚碳酸酯混合物、聚氨酯和TPU樹脂，專門開發用於使用TPU樹脂的設計和加工部件和應用，可幫助產品在各種應用中實現更美的外觀和經久耐用性。
本頁顯示的信息由UL從產品廠商處直接獲得。UL始終在盡最大努力確保此數據的準確性，但是UL對於這些信息中涉及的數值或產品宣稱不承擔任何責任，強烈建議您在最終選擇產品時，就所有信息與廠商進行驗證。
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：
Lists combine the ease of Bookmarks with the versatility of Tags. Instead of one collection of bookmarked items, create as many collections, called "Lists," as you need.
Find the link to your List page in the user menu.
All Tags have been converted to separate Lists, and your bookmarked items have been saved to a "Bookmarks" List.
When you click the Add to List button, a dropdown of your existing Lists appears. Click the List name to which you want to add this product or formula.
You can also create a new List. Simply click "Create a New List" and enter a name.
When you define a new List, the current item is automatically added to it. You can add a product or formula to as many Lists as you need.
Easily see which Lists this item appears in, and quickly go to that List from the links that appear on the page.
