Patent ID: 8247076

Claim:
A solid two layer antidripping fluoropolymer concentrate, in the form of a bulk block or particles, said concentrate consisting of: A) a first layer of fluoropolymer granules B) a second layer of a flame retardant selected from brominated epoxy resins melt-coated directly and homogeneously applied onto the first layer; C) said first layer of fluoropolymer granules with the second layer of melt-coated flame retardant directly on and homogeneously applied onto the first layer being obtained by i) melting the flame retardant; and optionally added at a different step additives selected from the group consisting of ultraviolet and light stabilizers, UV screeners, UV absorbers, release agents, lubricants, colorants, plasticizers, fillers, blowing agents, heat stabilizers, antioxidants, reinforcement additives, impact modifiers, and processing aids; into a homogeneous molten phase; ii) mixing fluoropolymer granules into said molten phase; and iii) solidifying said molten phase to form said two layer melt-coated fluoropolymer granules wherein the second layer of flame retardant coating directly contacts and is homogeneously applied onto the first layer of fluoropolymer granules.