초록 ▼

An oriented continuous strand mat of glass fiber filaments is formed by interleaved layers of generally circular or random loops and elongated elliptical loops having their longitudinal axes positioned in the direction of travel of an endless conveyor upon which the glass fibers are deployed to form

An oriented continuous strand mat of glass fiber filaments is formed by interleaved layers of generally circular or random loops and elongated elliptical loops having their longitudinal axes positioned in the direction of travel of an endless conveyor upon which the glass fibers are deployed to form a mat useable in a stampable glass fiber reinforced thermoplastic resin sheet having increased tensile strength in the length of the sheet. An elongated deflector plate having a planar deflecting surface whose length is aligned with the direction of conveyor travel, and whose face plane is generally perpendicular thereto receives pulled strands which have passed through an air flow nozzle and forms the strands into the elongated elliptical loops used to make the mat.

대표청구항 ▼

A process for forming a glass fiber mat from a molten glass source, comprising the steps of: forming a plurality of glass fibers from a molten glass; gathering the fibers into glass fiber strands; feeding the said glass fiber strands to a plurality of strand feeders positioned serially above an endl

A process for forming a glass fiber mat from a molten glass source, comprising the steps of: forming a plurality of glass fibers from a molten glass; gathering the fibers into glass fiber strands; feeding the said glass fiber strands to a plurality of strand feeders positioned serially above an endless conveyor; traversing said plurality of strand feeders transversely across said endless conveyor while said endless conveyor is moving generally perpendicularly to the direction of traversal of said strand feeders; causing selected first ones of said strand feeders to form first small circular or random loops of continuous strands on said endless conveyor; and causing selected second ones of said strand feeders to form second elongated, generally elliptical loops of continuous glass on said endless conveyor, said first and said second loops of continuous strands being interlayered on said endless conveyor to form said glass fiber mat, and needling said mat to entangle the glass fibers and impart mechanical integrity to the mat.