Fast dissolving polyimide powders

摘要

Polyetherimide particles or powders with a high surface area and high porosity can be prepared by precipitation of polymer solution in hot water or steam without the use of any additives. The particles or powders produced rapidly dissolved in organic solvents as well as epoxy matrices.

主权项

1. A porous powder comprising at least one polyimide porous particle,
wherein the shape of the particle is a fluffy, non-spherical shape of a size in the range of 75 to 5,000 microns; and wherein the pore volume of the particle is from greater than or equal to 0.01 to 0.10 cc/g.