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AssigneeJohns Manville
InventorsRajappa Tadepalli, Jawed Asrar, Klaus Friedrich Gleich, Kiarash Alavi
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Methods of making fiber reinforced composite articles are described. The methods may include treating fibers with a sizing composition that includes a polymerization compound, and introducing the treated fibers to a pre-polymerized composition. The combination of the treated fibers and pre-polymerized composition may then undergo a temperature adjustment to a polymerization temperature at which the pre-polymerized composition polymerizes into a plastic around the fibers to form the fiber-reinforced composite article. Techniques for introducing the treated fibers to the pre-polymerized composition may include pultrusion, filament winding, reactive injection molding (RIM), structural reactive injection molding (SRIM), resin transfer molding (RTM), vacuum-assisted resin transfer molding (VARTM), long fiber injection (LFI), sheet molding compound (SMC) molding, bulk molding compound (BMC) molding, a spray-up application, and/or a hand lay-up application, among other techniques.
A treated fiber that is treated with a sizing composition, wherein the sizing composition contacts said fiber and comprises at least one of (i) a tin-containing polymerization catalyst and (ii) a titanium-containing polymerization catalyst, and wherein the treated fiber lacks a pre-polymerized resin composition that is polymerized with the help of the polymerization catalyst.
Dependencies are inferred from the claim text.