• 专利标题:   Fluorocomposition used for forming coated article, comprises fluoromaterials having preset melting point, and including reactive functional group e.g. carbonyl group, and has preset yellow index using film sample with preset thickness.
  • 专利号:   WO2021118919-A1
  • 发明人:   ABE M, AIDA S
  • 专利权人:   AGC CHEM AMERICAS INC
  • 国际专利分类:   B32B027/32, C08L027/12, C08L027/18, C09D127/12
  • 专利详细信息:   WO2021118919-A1 17 Jun 2021 202154 Pages: 30 English
  • 申请详细信息:   WO2021118919-A1 WOUS063568 07 Dec 2020
  • 优先权号:   US947045P

▎ 摘  要

NOVELTY - A fluorocomposition comprises a fluoromaterial (m1) having melting point of at least 260 degrees C and 10-200 reactive functional groups for every 1000000 main chain carbon atoms, and a fluoromaterial (m2) having melting point of at least 260 degrees C and at least 700 reactive functional groups for every 1000000 main chain carbon atoms, and has yellow index (YI) of less than 60 as measured in accordance with ASTM-E513-96 with a film sample having a thickness of 0.2 plus minus 0.02 mm prepared by pressure molding with a mold temperature 340 degrees C, a mold time of 10 minutes, and a pressure of 10 MPa. The reactive functional groups of materials (m1) and (m2) are chosen from anhydride group, carbonyl group, hydroxyl group, epoxy group, and isocyanate group. The content ratio of material (m1) to material (2) is 99/1-20/80. USE - Fluorocomposition used for forming film for forming coated article (all claimed) e.g. substrate such as positive temperature coefficient ceramic material. ADVANTAGE - The fluoropolymer-free fluorocomposition has excellent abrasion resistance, melt moldability, stress cracking resistance, heat resistance, and chemical resistance. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) a coated article, which comprises a substrate with a film formed using the fluorocomposition; and (2) manufacture of the fluorocomposition, which involves providing the materials (m1) and (m2), and mixing the materials (m1) and (m2).