Company News, Patents

Patent Review

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By: TOM BRANNA

Editor

Grant Patents Gransil EPSQ Powder Technology Grant Industries, Inc., Elmwood Park NJ, has been awarded a patent for its Gransil EPSQ powder technology, leading to a new class of sponge-like cosmetics. (At press time, the final patent number had yet to be published.) Cosmetic grade polydimethylsiloxane and polymethylsilsesquioxane (PMSQ) are entwined in a process that produces a finely divided porous particle using interpenetrating polymer network (IPN) synthesis, which is not a simple mi...

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