Stock material or miscellaneous articles – Composite – Of addition polymer from unsaturated monomers
Patent
1998-04-23
2000-09-19
Mullis, Jeffrey C.
Stock material or miscellaneous articles
Composite
Of addition polymer from unsaturated monomers
428523, 524 71, 524401, B32B 1100, B32B 1102
Patent
active
061209139
ABSTRACT:
The present invention provides a roofing shingle which is comprised of a support material and a bituminous composition which comprises a bitumen component, less than 15% by weight of a block copolymer composition, based on total weight of block copolymer composition and bitumen component, and more than 40% by weight of a filler, based on total weight of block copolymer, bitumen component and filler, which block copolymer composition comprises at least one block of a conjugated diene and at least two blocks of a monovinylaromatic hydrocarbon, wherein the block copolymer composition has a vinyl content of at least 25% by weight based on the total diene content and optionally a diblock content of 25 wt % or less, and any diblock copolymer present has an apparent molecular weight which is in the range of from 60,000 to 170,000.
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Heimerikx Gerardus Wilhelmus Jozef
Kluttz Robert Quillin
Haas Donald F.
Mullis Jeffrey C.
Shell Oil Company
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