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Reinforced plastic article with improved surface properties

  • US 3,152,949 A
  • Filed: 11/02/1960
  • Issued: 10/13/1964
  • Est. Priority Date: 11/02/1960
  • Status: Expired due to Term
First Claim
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1. A RIGID REINFORCED SYNTHETIC RESIN ARTICLE HAVING GOOD DIELECTRIC PROPERITIES AND HIGH IMPACE STRENGTH AT LEAST ONE SURFACE OF WHICH MAY BE MACHINED BY SANDING AND GRINDING TO PROVIDE A BONDABLE SURFACE WITHOUT COLOGGING THE MACHINING TOOL COMPRISING, A SYNTHETIC RESIN BASE CONSISTING OF A COPOLYMER OF STYRENE AND DIVINYLBENZENE, A WOVEN POLYPROPYLENE REINFORCING FABRIC IMBEDDED IN SAID BASE, AND A MAT OF NON-WOVEN POLYPROPYLENE FIBERS IMBEDDED IN AT LEST ONE SURFACE OF SAID BASE.

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