公开(公告)号：US3843486A

公开(公告)日：1974-10-22

申请号：US13585471

申请日：1971-04-21

Applicant: INTERWEST GENERAL CORP

Inventor： JOHANSSON K ,  WIKHOLM K

IPC: B05D1/42 ,  B05D7/00 ,  B29C37/00 ,  B29C70/50 ,  B29D24/00 ,  B32B3/12 ,  B32B27/00 ,  B32B37/14 ,  B32B37/16 ,  E04C2/20 ,  E04C2/26 ,  E04C2/36 ,  B32B31/00 ,  B65C

CPC classification number: B32B5/16 ,  B05D1/42 ,  B05D7/52 ,  B05D7/54 ,  B29C37/0082 ,  B29C70/50 ,  B29D24/005 ,  B29K2105/04 ,  B29K2105/0845 ,  B29K2105/16 ,  B29K2105/206 ,  B29K2305/00 ,  B29K2309/08 ,  B29K2711/12 ,  B32B3/12 ,  B32B7/12 ,  B32B13/06 ,  B32B15/16 ,  B32B17/068 ,  B32B27/00 ,  B32B37/146 ,  B32B2250/40 ,  B32B2260/00 ,  B32B2264/12 ,  B32B2307/3065 ,  B32B2311/00 ,  B32B2315/08 ,  B32B2323/04 ,  B32B2327/06 ,  B32B2329/00 ,  B32B2331/04 ,  B32B2363/00 ,  B32B2371/00 ,  B32B2375/00 ,  E04C2/20 ,  E04C2/26 ,  E04C2/36 ,  Y10T156/1089

Abstract: 1. A METHOD OF MANUFACTURING SANDWICH ELEMENTS, COMPRISING THE STEPS OF SPREADING OUT A FIRST LAYER OF A MIXTURE OF SOLID PARTICLES AND LIQUID RESINOUS BINDER ON A BASE, APPLYING A SUPPORT MEMBER OF FLEXIBLE SHEET MATERIAL ON THE SURFACE OF SAID FIRST LAYER, SPREADING OUT A SECOND LAYER OF A MIXTURE OF SOLID PARTICLES AND LIQUID RESINOUS BINDER ON SAID FIRST LAYER AND SAID SUPPORT MEMBER, THE QUANTITY OF SOLID PARTICLES IN SAID MIXTURE FORMING SAID SECOND LAYER BEING SUCH THAT UPON SUBSEQUENTLY ALLOWING THE SOLID PARTICLES TO SETTLE AND TO FORM A SETTLE LAYER OF PARTICLES WITH BINDER THEREBETWEEN, AN OUTER LAYER OF BINDER IN EXCESS OF THAT WHICH SETTLES BETWEEN THE PARTICLES IS FORMED ATOP SAID SETTLED LAYER, INSERTING ONE SIDE PORTION OF A CORE BOARD ELEMENT OF OPEN-CELLED STRUCTURE INTO AND THROUGH SAID OUTER LAYER AND INTO ENGAGEMENT WITH SAID SUPPORT MEMBER, AND SAID SUPPORT MEMBER SEEPING SAID CORE BOARD ELENENT OUT OF CONTACT WITH SAID BASE, SO THAT SOME BINDER OF SAID OUTER LAYER ENTERS AND IS PICKED UP BY THE CELLS OF SAID CORE BOARD ELEMENT, AND FINALLY ALLOWING SAID BINDER TO HARDEN.