초록 ▼

The invention includes a composite panel and a method for manufacturing it. The panel has a smooth polyester plastic face, a first fiberglass reinforced polyester layer adjacent to the smooth face, a honeycomb structure core of polypropylene plastic with one face adhered to the first polyester layer

The invention includes a composite panel and a method for manufacturing it. The panel has a smooth polyester plastic face, a first fiberglass reinforced polyester layer adjacent to the smooth face, a honeycomb structure core of polypropylene plastic with one face adhered to the first polyester layer, and a second fiberglass reinforced polyester layer adhered to the second face of the core. The panel is manufactured by assembling the components in a series of steps and curing the polyester layers in sequence on a flat horizontal mold.

대표청구항 ▼

A composite panel having: (1) a first face comprising a first layer of cured polyester resin bonded to (2) a second layer of cured polyester resin having embedded therein a fabric of woven roving fiberglass bonded by said second layer of cured resin to one side of (3) a polypropylene core layer of t

A composite panel having: (1) a first face comprising a first layer of cured polyester resin bonded to (2) a second layer of cured polyester resin having embedded therein a fabric of woven roving fiberglass bonded by said second layer of cured resin to one side of (3) a polypropylene core layer of thin wall, open cell, honeycomb structure, in turn bonded to (4) a second face comprising a third layer of cured polyester resin having embedded therein a fabric of woven roving fiberglass, said third layer of cured polyester resin bonding said second face to the second side of said polypropylene core layer, and (5) means to prevent resin from said second and third layers from penetrating through the cells of the honeycomb structure core.