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US 4,301,204 AGranted
Sheet useful as roofing
AssigneeCooley, Incorporated
InventorsJoseph H. McCusker, Philip R. Siener, Jr.
Life of this patent
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Abstract
Material useful as sheet roofing is made up of a foraminous, stress-free reinforcing layer covered with layers of titanium dioxide bearing unplasticized chlorinated polyethylene.
Claims4
A sheet comprising a first layer formed from a plastic resin composition,
- a second layer formed from said plastic resin composition, and a third layer sandwiched between said first layer and said second layer,
- the plastic in said plastic resin composition consisting of chlorinated polyethylene,
- said plastic resin composition containing titanium dioxide but no plasticizer,
- said third layer comprising a foraminous, stressfree reinforcing layer.
1 more element
Dependencies are inferred from the claim text.