发明名称 |
Mineral-filled roofing membrane compositions and uses therefor |
摘要 |
A non-black roof sheeting material may be prepared from a composition of matter comprising 100 parts by weight of at least one polymeric rubber selected from the group consisting of ethylene-propylene-diene terpolymers, ethylene-propylene copolymers and other polyolefinic type polymers; from about 20 to about 300 parts by weight of a blend of at least two mineral fillers, per 100 parts of said polymeric rubber, wherein one of said mineral fillers is a reinforcing silica and wherein another of said mineral fillers is a chemically modified clay; from about 20 to about 150 parts by weight of a processing oil, per 100 parts of said polymeric rubber; from 1 to about 6 parts by weight of a sulfur cure package having at least one accelerator but being devoid of any thiuram accelerators, said cure package allowing said sheeting material to cure at about the same rate as a comparable black roof sheeting material at 160 DEG C. The non-black (white) sheeting material may form the ply of a white-on-black bilaminant roofing membrane or it may represent both the top and bottom ply of a non-black (white) polymeric roof sheeting material.
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申请公布号 |
US5854327(A) |
申请公布日期 |
1998.12.29 |
申请号 |
US19970883647 |
申请日期 |
1997.06.27 |
申请人 |
BRIDGESTONE/FIRESTONE, INC. |
发明人 |
DAVIS, JAMES A.;ALEXANDER, BRIAN S. |
分类号 |
C08J5/18;C08K3/36;C08K9/06;C08L23/16;E04D5/06;(IPC1-7):C08K3/00 |
主分类号 |
C08J5/18 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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