丙烯酸类改性TPU树脂及其制备方法与在低温固化油墨中的应用
By modifying TPU resin with acrylic resin and combining low-temperature crosslinking and multiple crosslinking networks, the problems of high-temperature curing and compatibility of TPU resin in inks are solved, achieving high-performance low-temperature curing and excellent adhesion and durability, suitable for a variety of substrates.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANDONG INOV POLYURETHANE
- Filing Date
- 2026-03-02
- Publication Date
- 2026-07-17
AI Technical Summary
Existing thermoplastic polyurethane (TPU) resins have problems in ink applications, such as high curing temperature, insufficient adhesion to low surface energy substrates, and poor chemical and weather resistance. Traditional physical blending systems lead to compatibility issues and uneven crosslinking.
TPU resin was modified with acrylic resin. Acrylic segments were grafted onto the TPU main chain, and multiple crosslinking was carried out by combining aliphatic blocked isocyanate and oxazoline polymer. Low-temperature curing was performed using a twin-screw extruder, and the amount of catalyst and reaction conditions were controlled to form a dense crosslinked network.
It achieves low-temperature curing performance, improves adhesion, flexibility and toughness, broadens the application range of inks on heat-sensitive substrates, and ensures the coating's resistance to yellowing and scratching.
Smart Images
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