- 专利标题: FOAM GASKET AND BONDING TAPE BASED ON POLYURETHANE DISPERSIONS
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申请号: US15668330申请日: 2017-08-03
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公开(公告)号: US20170334103A1公开(公告)日: 2017-11-23
- 发明人: Jing GUAN , Yue DONG , Georges MOINEAU
- 申请人: SAINT-GOBAIN PERFORMANCE PLASTICS CORPORATION
- 优先权: CN201310233653.X 20130613
- 主分类号: B29C39/20
- IPC分类号: B29C39/20 ; B29C39/18 ; B29K75/00 ; B29L7/00 ; B29L31/26 ; B29L9/00
摘要:
A polymer sheet includes a polyurethane core. The polyurethane core has a first major surface and a second major surface opposite the first major surface. The polymer sheet can have at least one functional layer overlying a major surface. The polymer sheet has a thickness tPS. The polyurethane core has a thickness tPC. In embodiments tPC can be at least 0.3 tPS. The polyurethane core can have at least one of the following property: (i) a Scratch Resistance Rating, as further described herein, of not greater than about 10 wt %, (ii) an elongation at break of at least 200%, (iii) a tensile strength at break of at least 0.3 MPa, (iv) a loss of tensile strength of not greater than about 30% when exposed to UV light according to standard SAE J1960 (Rev. August 2003). The polymer sheet can be used for gaskets or bonding tapes.