METALLIZATION AND SURFACE COATING SOLUTION ON GLASS FILLER HIGH PEFORMANCE AMORPHOUS POLYMER COMPOSITIONS

摘要

A composition including from 35 to 85% by weight based on the weight of the composition of a high-heat amorphous polymeric material, having a glass transition temperature of at least 180 degrees Celsius, from 10 to 50% by weight based on the weight of the composition of a filler selected from glass fiber, glass flake, flat glass fiber, glass bead, and combinations thereof; and from 0 to 10% by weight of composition of at least one additive selected from a flow promoter, a thermal stabilizer, a mold release agent, and combinations thereof. Products including the composition, such as a hard disc drive enclosure.

主权项

1. A product comprising:
a substrate, wherein the substrate comprises a composition comprising: (a) from 35 to 85% by weight based on the weight of the composition of—high-heat amorphous polymeric, materials, having a glass transition temperature of at least 180 degrees Celsius, (b) from 10 to 50% by weight based on the weight of the composition of a filler selected from glass fiber, glass flake, flat glass fiber, glass bead, and combinations thereof; and (c) from 0 to 10% by weight of composition of at least one additive selected from a flow promoter, a thermal stabilizer, a mold release agent, and combinations thereof; a first layer disposed on the substrate; and optionally a second layer disposed on the first layer, wherein the first layer and the second layer are independently selected from a metallized coating and a polymeric coating, wherein the product has a Liquid Particle Count that is less than 1,500 particles/cm2; and wherein the product has an EMI shielding effect higher than 30 dB.