公开(公告)号：US3520750A

公开(公告)日：1970-07-14

申请号：US3520750D

申请日：1966-12-23

Applicant: ALLIED CHEM

Inventor： LI HSIN L ,  PREVORSEK DUSAN C ,  OSWALD HENDRIKUS J ,  KOCH PAUL J ,  SCHMITT GEORGE J

IPC: B29C43/30 ,  B29C51/14 ,  B29C70/00 ,  B29C70/50 ,  B32B27/00

CPC classification number: B32B27/00 ,  B29C43/305 ,  B29C51/14 ,  B29C70/00 ,  B29C70/504 ,  B29K2309/08 ,  Y10T156/1007

公开(公告)号：US3690980A

公开(公告)日：1972-09-12

申请号：US3690980D

申请日：1970-06-29

Applicant: ALLIED CHEM

Inventor： PREVORSEK DUSAN C ,  LI HSIN L ,  KOCH PAUL J ,  OSWALD HENDRIKUS J ,  SCHMITT GEORGE J

IPC: B32B15/08

CPC classification number: B32B15/08 ,  Y10T156/1039 ,  Y10T156/1043

Abstract: A COLD FORMABLE SANDWICH STRUCTURE WHICH HAS A THERMOSETTING RESINOUS CORE BETWEEN FACE SHEETS COMPRISING LAMINAE OF A THERMOPLASTIC SHEET WHICH INCORPORATES A METALLIC FOIL. THE METAL FOIL-THERMOPLASTIC RESIN FACING SHEETS ARE OF SUFFICIENT THICKNESS AND STRENGTH SO THAT THE SANDWICH CONTAINING THE THERMOSETTING CORE BETWEEN THE FACE SHEETS MAY BE COLD-FORMED INTO SHAPED ARTICLES AND SUCH SHAPES AS IS IMPARTED TO IT IS RETAINED BY THE THERMO-

PLASTIC FACE SHEETS WITHOUT EXTERNAL CONSTRAINT ON THE SHAPE AS THE THERMOSETTING CORE IS SUBSEQUENTLY CURED AT RELATIVELY HIGH TEMPERATURE.

公开(公告)号：US3578552A

公开(公告)日：1971-05-11

申请号：US3578552D

申请日：1968-04-04

Applicant: ALLIED CHEM

Inventor： PREVORSEK DUSAN C ,  LI HSIN L ,  KOCH PAUL J ,  OSWALD HENDRIKUS J ,  SCHMITT GEORGE J

IPC: B32B15/08 ,  B32B27/36 ,  B32B27/40

CPC classification number: B32B15/08 ,  Y10T156/1044 ,  Y10T428/31681 ,  Y10T428/31692

Abstract: PLASTIC FACE SHEETSS WITHOUT EXTERNAL CONSTRAINT ON THE SHAPE AS THE THERMOSETTING CORE IS SUBSEQUENTLY CURED AT RELATIVELY HIGH TEMPERATURES.

A COLD FORMABLE SANDWICH STRUCTURE WHICH HAS A THERMOSETTING RESINOUS CORE BETWEEN FACE SHEETS COMPRISING LAMINAE OF A THERMOPLASTIC SHEET WHICH INCORPLORATES A METALLIC FOIL. THE METAL FOIL-THERMOPLASTIC RESIN FACING SHEETS ARE OF SUFFICIENT THICKNESS AND STRENGTH SO THAT THE SANDWICH CONTAINING THE THERMOSETTING CORE BETWEEN THE FACE SHEETS MAY BE COLD-FORMED INTO SHAPED ARTICLES AND SUCH SHAPE AS IS IMPARTED TO IT IS RETAINED BY THE THERMO-