Patent ID: 7244778

Claim:
A filler reinforced polyether imide resin composition comprising: a. a polymer composition consisting of a polyether imide resin in the amount of 1 to 95% by weight, and b. at least a thermoplastic resin selected from the group consisting of polyphenylene ether, polyester, polycarbonate, polyester carbonate, polyamide, polyolefin, and polyether in the amount of 1 to 95% by weight; c. a fibrous type reinforced filler in the amount of 2 to 80% by weight; and d. a non-fibrous inorganic filler in the amount of 2 to 80% by weight, wherein the weight percents are based on the total weight of the composition, and wherein said composition has a heat deflection temperature greater than or equal to about 170° C. as determined by ASTM D648 and a linear expansion coefficient in the vertical direction of less than 5×10 −5 K −1 over the temperature range from 30° C. to 160° C. as determined by means of a TMA.