• 专利标题:   Thermoconductive photosensitive material comprises photosensitive polyimide which is (co)polymer, inorganic filler e.g. alumina and graphene, and having preset particle size, and silica solution, and has preset thermal conductivity.
  • 专利号:   CN112442271-A
  • 发明人:   CAO X, GUI C
  • 专利权人:   HUBEI BAIHE PHARM CO LTD
  • 国际专利分类:   C08K013/02, C08K013/04, C08K003/04, C08K003/22, C08K003/28, C08K003/34, C08K003/36, C08K007/06, C08L033/04, C08L079/08, C09K005/14, G03F007/004
  • 专利详细信息:   CN112442271-A 05 Mar 2021 C08L-079/08 202140 Pages: 4 Chinese
  • 申请详细信息:   CN112442271-A CN10819637 31 Aug 2019
  • 优先权号:   CN10819637

▎ 摘  要

NOVELTY - A thermoconductive photosensitive material comprises (a) 30-50 wt.% photosensitive polyimide which is a polymer or copolymer comprising repeating units (I), (b) 10-20 wt.% inorganic filler chosen from alumina, graphene, inorganic clay, mica powder, aluminum nitride, silica, zinc oxide, carbon dioxide, carbon nanotubes and carbon nanofibers, and having particle size of 45 nm to 6 mu m, and (c) 7-20 wt.% silica solution polymerized by sol-gel method, and having particle size of 5-10 nm, and has thermal conductivity of 0.6-2.5. USE - Thermoconductive photosensitive material. ADVANTAGE - The thermoconductive photosensitive material has excellent thermoconductive coefficient of 0.6-2.5. DETAILED DESCRIPTION - A thermoconductive photosensitive material comprises (a) 30-50 wt.% photosensitive polyimide which is a polymer or copolymer comprising repeating units of formula (I), (b) 10-20 wt.% inorganic filler chosen from alumina, graphene, inorganic clay, mica powder, aluminum nitride, silica, zinc oxide, carbon dioxide, carbon nanotubes and carbon nanofibers, and having particle size of 45 nm to 6 mu m, and (c) 7-20 wt.% silica solution polymerized by sol-gel method, and having particle size of 5-10 nm, and has thermal conductivity of 0.6-2.5. m,n = 5-550;and X = tetravalent organic group. N.B.: Structure (I) is missing because it is not present in the original patent specification.