US 2023/0416585 A1 · Thermally Conductive Polymer Compositions Containing Carbon Black

Abstract

A composite polymer composition comprising partially crystallized carbon black. The composition exhibits superior thermal transfer properties in plastic formulations. The polymer precursor exhibits excellent rheology when compared to similar compositions comprising traditional carbon blacks. The composite polymers provide for higher loading of more thermally conductive carbon blacks in a variety of composite polymer compositions.

Claims38

Dependent claims

A thermoplastic composite polymer composition comprising:

greater than 50% by weight of a polymer matrix;
and
a partially crystallized furnace carbon black dispersed in the polymer matrix at a concentration of from 12 to 28 percent by weight, wherein the carbon black has an OAN structure of greater than 120 cm3/100 g and less than 200 cm3/100 g, a BET surface area of less than 425 m2/g, a surface energy of less than 8 mJ/m2, a percent crystallinity of less than 65% and a Raman microcrystalline planar size (La) of greater than or equal to 28 Å.

A polymer precursor composition comprising:

greater than 50% by weight of a polymer precursor comprising a polymerizable monomer or oligomer;
and
a partially crystallized furnace carbon black dispersed in the monomer or oligomer at a concentration of from 12 to 28 percent by weight, wherein the carbon black has an OAN structure of greater than 120 cm3/100 g and less than 200 cm3/100 g, a surface energy of less than 8 mJ/m2 and a Raman microcrystalline planar size (La) of greater than or equal to 28 Å.

Dependencies are inferred from the claim text.

Thermally Conductive Polymer Compositions Containing Carbon Black

Life of this patent

Thermally Conductive Polymer Compositions Containing Carbon Black

Life of this patent

Abstract

Claims38