Invention Grant
- Patent Title: Roofing membranes and methods for constructing
- Patent Title (中): 屋顶隔膜及施工方法
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Application No.: US13706065Application Date: 2012-12-05
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Publication No.: US08900718B2Publication Date: 2014-12-02
- Inventor: Lichih R Peng
- Applicant: Johns Manville
- Applicant Address: US CO Denver
- Assignee: Johns Manville
- Current Assignee: Johns Manville
- Current Assignee Address: US CO Denver
- Agent Robert D. Touslee
- Main IPC: B32B27/08
- IPC: B32B27/08 ; B29C47/00 ; B32B27/00 ; E04D5/10

Abstract:
Embodiments of the invention provide improved roofing membranes and methods and systems involving the same. According to one embodiment, a roofing membrane laminate is provided. The roofing membrane laminate includes a first membrane layer that includes a thermoplastic polyolefin material and a second membrane layer positioned atop the first membrane layer and bonded thereto. The second membrane layer includes a thermoplastic polyolefin material and an acrylate additive blended with the thermoplastic polyolefin material. The acrylate additive is blended with the thermoplastic polyolefin material while both materials are resins and is added so as to comprise 10% by weight or less of the blended resins. The acrylate additive includes an ethylene backbone chain and an acrylate bonded with the ethylene backbone chain.
Public/Granted literature
- US20140150960A1 ROOFING MEMBRANES AND METHODS FOR CONSTRUCTING Public/Granted day:2014-06-05
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