High stiff thermoplastic compositions for thin-wall structures

A thermoplastic composition comprising:

• a. from about 29 wt % to about 49 wt % of a thermoplastic polymer component comprising
• i. a first thermoplastic polymer consisting of polybutylene terephthalate, and
• ii. a second thermoplastic polymer consisting of polycarbonate, polyethylene terephthalate, copolymers thereof, or a combination thereof,
• wherein the first thermoplastic polymer is present the composition in a ratio of at least 2:1 as compared to the second thermoplastic polymer;
• b. from about 1 wt % to about 30 wt % of a component comprising a polyester elastomer, an ethylene/alkyl acrylate/glycidyl methacrylate terpolymer compatibilizer, or a combination thereof;
• and
• c. from about 50 wt % to about 70 wt % of a ceramic fiber component comprising ceramic fibers,
• wherein the combined weight percent value of all components does not exceed 100 wt %, and all weight percent values are based on the total weight of the composition.