公开(公告)号：US3783068A

公开(公告)日：1974-01-01

申请号：US3783068D

申请日：1970-03-12

Applicant: NORTHROP CORP

Inventor： BROWN G

IPC: B65H81/00

CPC classification number: B29C70/08 ,  Y10T428/24994 ,  Y10T428/31765

Abstract: A METHOD OF FORMING POLYAMIDE FILMS REINFORCED WITH REINFORCING FILAMENTS, COMPRISING PROVIDING A THIN FUSIBLE, NON-POROUS FILM OF THE POLYAMIDE ON A FILAMENT WINDING DRUM, WRAPPING REINFORCING FILAMENTS THEREON, COATING THE FILAMENTS WITH ADDITIONAL POLYAMIDE RESIN, STAGING THE MATERIAL TO A TACK-FREE CONDITION, THEN REMOVING IT FROM THE WINDING DRUM AND APPLYING HEAT TO REMOVE THE VOLATILES FROM THE FILM. STACKED LAYERS OF THE FILM CAM THEN BE SUBJECTED TO TEMPERATURES AND PRESSURES SUFFICIENT TO FUSE AND CURE THE LAYERS INTO AN INTEGRATED STRUCTURE.

公开(公告)号：US3756905A

公开(公告)日：1973-09-04

申请号：US3756905D

申请日：1971-12-20

Applicant: NORTHROP CORP

Inventor： MILLS G ,  BROWN G

IPC: B29C70/08 ,  B32B5/12

CPC classification number: B32B27/08 ,  B29C70/08 ,  B29K2105/101 ,  B32B27/281 ,  B32B2260/021 ,  B32B2260/046 ,  B32B2262/103 ,  Y10T428/24132 ,  Y10T428/249947

Abstract: A PLASTIC LAMINATE IS FORMED FROM LAYERS OF COMPOSITE MATERIAL MADE FROM FILAMENTS WHICH HAVE BEEN IMPREGNATED WITH A PLASTIC BINDER. A SUBSTANTIAL IMPROVEMENT IN THE STRUCTURAL CHARACTERISTICS OF THE LAMINATE IS ACHIEVED BY ALTERNATING FILAMENT RICH LAYERS OF COMPOSITE MATERIAL WITH RESIN RICH LAYERS OF COMPOSITE MATERIAL IN FORMING THE LAMINATE STRUCTURE.