- 专利标题: FILMS COMPRISING ALIPHATIC THERMOPLASTIC POLYURETHANES AND POLYVINYL ACETALS USEFUL AS AUTO WRAPS
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申请号: US18686013申请日: 2022-08-25
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公开(公告)号: US20240240056A1公开(公告)日: 2024-07-18
- 发明人: ROBERT ERIK YOUNG , SANMITRA A. BHAT , WENJIE CHEN , SPENCER ERICH HOCHSTETLER , YAN JIN , THOMAS JOSEPH PECORINI
- 申请人: EASTMAN CHEMICAL COMPANY
- 申请人地址: US TN KINGSPORT
- 专利权人: EASTMAN CHEMICAL COMPANY
- 当前专利权人: EASTMAN CHEMICAL COMPANY
- 当前专利权人地址: US TN KINGSPORT
- 国际申请: PCT/US2022/041473 2022.08.25
- 进入国家日期: 2024-02-23
- 主分类号: C09J7/29
- IPC分类号: C09J7/29 ; C09J5/06 ; C09J7/25
摘要:
Thermoplastic films are disclosed that are suitable for use as auto wraps. The films include a thermoplastic polyurethane layer and a patterned adhesive layer. The thermoplastic films, when tested by a 25% Heat Relaxation Test at a thickness of about 0.006 inches, exhibits a final load from about 0.02 to about 0.3 pounds force; and when tested by a 25% Elastic Recovery test, exhibits a residual strain at one minute of 2% or greater.
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