×

Articles containing precisely branched functional polymeric phase change materials

  • US 9,938,365 B2
  • Filed: 02/07/2014
  • Issued: 04/10/2018
  • Est. Priority Date: 03/04/2011
  • Status: Active Grant
First Claim
Patent Images

1. A temperature regulating article comprising:

  • a substrate; and

    a temperature regulating composition bound to the substrate;

    wherein the temperature regulating composition comprisesa polymeric phase change material bound to the substrate, wherein the polymeric phase change material includes a branched polymer with equally spaced repeating sidechains each separated by at least three carbon backbone atoms, wherein the number of carbon backbone atoms between sidechains controls a degree of crystallization of the polymeric phase change material at a given transition temperature, wherein the polymeric phase change material includes between 20 and 200 branches per 1000 carbon atoms,wherein the polymeric phase change material has a latent heat of at least 5 Joules per gram and a transition temperature between 0°

    C. and 40°

    C. dependent upon the number of carbon backbone atoms between sidechains, andwherein the sidechains are selected from the group consisting of CH3, C2H5, CnH2n+1, OCH3, and OC2H5.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×