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US 5,512,615 AGranted
Silicone binder material and products formed therefrom
AssigneeTamko Roofing Products, Inc.
InventorThomas O. Olsen
Life of this patent
Estimating the term…
Abstract
A silicone rubber binder composition is provided which includes silicone rubber, silicon dioxide and an aggregate such as sand, gravel, cinders and the like. The silicone rubber is preferably an RTV silicone rubber which is solubilized using a solvent and mixed with the silicon dioxide and aggregate. The mixture may be spray applied to form a roofing coating or may be molded to form another building element such as a beam, post, block, shingle, wallboard or the like.
Claims8
A composition comprising:
- a RTV silicone rubber in an amount of between 2 and 20% by weight of the total weight of the composition;
- a solvent capable of solubilizing said RTV silicone rubber, said solvent being present in an amount of between 0 and 50% by weight of the total weight of the composition;
- silicon dioxide in an amount of between 5 and 35% by weight of the total weight of the composition;
- and
- a quantity of cellulosic fibers in an amount of between 40 and 90% by weight of the total weight of the composition.
2 more elements
Dependencies are inferred from the claim text.