Invention Grant
US07972685B2 Glass mat laminate comprised of polymerizable cyclic polyester oligomers suitable for composites with a class-A surface 有权
由可聚合的环状聚酯低聚物组成的玻璃垫层压板,适用于具有A级表面的复合材料

  • Patent Title: Glass mat laminate comprised of polymerizable cyclic polyester oligomers suitable for composites with a class-A surface
  • Patent Title (中): 由可聚合的环状聚酯低聚物组成的玻璃垫层压板,适用于具有A级表面的复合材料
  • Application No.: US11141238
    Application Date: 2005-05-31
  • Publication No.: US07972685B2
    Publication Date: 2011-07-05
  • Inventor: Venkat K. Raghavendran
  • Applicant: Venkat K. Raghavendran
  • Applicant Address: US VA Forest
  • Assignee: Azdel, Inc.
  • Current Assignee: Azdel, Inc.
  • Current Assignee Address: US VA Forest
  • Agency: Clements Bernard PLLC
  • Agent Gregory N. Clements
  • Main IPC: B32B27/04
  • IPC: B32B27/04
Glass mat laminate comprised of polymerizable cyclic polyester oligomers suitable for composites with a class-A surface
Abstract:
A composition of a fiber reinforced multi-layered laminate that when compression-molded forms a composite having a Class-A surface that is resin rich. The fiber reinforced multi-layered laminate has an outer layer of a cyclic polyester oligomer containing a latent polymerization catalyst; a glass mat; a core layer of a cyclic polyester oligomer containing a latent polymerization catalyst; a second glass mat, and another outer layer of a cyclic polyester oligomer containing a latent polymerization catalyst. When compression molded, the combination of heat and pressure force the core layer through the permeable glass mats and toward the surface. The latent polymerization catalyst initiates polymerization of the cyclic polyester oligomer forming a Class-A surface that is resin rich. The core layer of a cyclic polyester oligomer thoroughly permeates the reinforcing fiber forming a composite having a middle, with a nearly uniform mixture of reinforced glass fiber and thermoplastic in situ polymerized resin.
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