可降解湿气固化聚氨酯结构胶
Through innovative design of bio-based polyurethane hot melt adhesive compositions, the problem of performance degradation caused by increased bio-based raw material usage has been solved, enabling the application of high bio-based polyurethane adhesives in the automation industry. This provides better adhesion performance and open time, and is suitable for a variety of substrates.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHANGZHOU DUBO POLYMER CO LTD
- Filing Date
- 2023-07-06
- Publication Date
- 2026-07-17
AI Technical Summary
Existing bio-based reactive polyurethane adhesives, when increasing the amount of bio-based raw materials, struggle to maintain the same or higher physical properties as gasoline-based polyurethanes, and their open time is unsuitable for the needs of the automation industry.
A polyurethane hot melt adhesive composition is used, wherein at least 84-85% of the components are replaced by bio-based materials, including bio-based polycarbonate diol, bio-based polyester polyol, tackifying resin, isocyanate compound, etc., and an environmentally friendly moisture-curing hot melt adhesive is formed by combining them in a specific ratio with a catalyst.
The prepared bio-based moisture-curing hot melt adhesive maintains excellent adhesion performance while possessing good mechanical properties and suitable open time, making it suitable for the automotive, construction, and packaging industries and for bonding various substrates.
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