| http://www.w3.org/ns/prov#value | - Useful thermoplastic organic polymers, of which the hollow microspheres may be formed, include cellulose derivatives, acrylic resins, polyolefins, polyamides, polycarbonates, polystyrene, copolymers of styrene and other vinyl monomers, vinyl polymers such as homo-or copolymers such as 2-ethyhexylacrylate, methyl methacrylate and copolymers of styrene with other vinyl monomers such as acrylonitrile
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