Hot melt adhesive compositions comprising modified styrene block copolymers and articles comprising same
By using specific proportions of unmodified and modified styrene block copolymers, tackifiers, and plasticizers in hot melt adhesive compositions, the problem of insufficient adhesion of hot melt adhesives in disposable absorbent products is solved, achieving stable adhesion and easy removal on a variety of substrates.
Patent Information
- Application Number
- CN202480031055.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2023-10-17
- Filing Date
- 2024-05-06
- Publication Date
- 2025-12-12
AI Technical Summary
Existing hot melt adhesive compositions have difficulty exhibiting good adhesion to various substrates under various conditions in disposable absorbent articles, especially in high humidity environments and on different fabrics, and are difficult to maintain stability and be easy to remove during user activity.
A hot melt adhesive composition comprising 5% to 40% by weight of unmodified styrene block copolymer, 0.5% to 15% by weight of modified styrene block copolymer, 30% to 65% by weight of tackifier and 10% to 45% by weight of plasticizer, with a wax content of less than 5% by weight, and using a hydrogenated hydrocarbon tackifier to improve adhesion and stability.
Provides strong adhesion to a variety of substrates under various conditions, maintaining stability, especially in high humidity environments, and is easy to remove without tearing, suitable for a variety of substrate materials such as cotton and microfiber.
Smart Images
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