公开(公告)号：US3832214A

公开(公告)日：1974-08-27

申请号：US15771671

申请日：1971-06-28

Applicant: TENNECO CHEM

Inventor： WANG W

IPC: B32B27/00 ,  C08J9/28 ,  B29D27/04 ,  B44D1/09

CPC classification number: C08J9/28 ,  B32B27/00 ,  C08J2201/0544

Abstract: SUPPLE, MICROPOROUS, BREATHABLE ELASTOMERIC FILMS WITH A SYSTEM OF INTERCOMMUNICATING CELLS ARE DESCRIBED. THE FILMS WHICH OPTICALLY CONTAIN INERT ORGANIC OR INORGANIC PARTICLES VARYING IN SIZE FROM ABOUT 0.02 MICRON TO 150 MICRONS ARE PREPARED BY DEPOSITION FROM A SOLUTION SPREAD ON A SUITABLE SURFACE. DEPOSITION IS EFFECTED BY EXPOSURE OF THE SOLUTION TO A LIQUID WHICH IS MISCIBLE WITH THE SOLVENT BUT WHICH DOES NOT DISSOLVE THE ELASTOMER. THE USEOF THE FILM IN THE PREPARATION OF LEATHER REPLACEMENT COMPOSITIONS BY INTEGRATION AS A GRAIN LAYER IN AND ON THE SURFACE OF SUITABLE SUBSTRATES IS DESCRIBED. FOR THIS USE THE SELECTED SUBSTRATE IS WET WITH A LIQUID IN WHICH THE ELASTOMER IS INSOLUBLE, COATED WITH A SOLUTION OF THE ELASTOMER IN A SOLVENT WHICH IS MISCIBLE WITH THE LIQUID USED TO WET SUBSTRATE, AND THE WET, COATED SUBSTRATE IS TREATED WITH ADDITIONAL LIQUIE TO DEPOSIT THE ELASTOMER EXTENDING INTO THE UPPER STRATA OF THE SUBSTRATE AND ABOVE ITS SURFACE.

公开(公告)号：US3764454A

公开(公告)日：1973-10-09

申请号：US3764454D

申请日：1970-11-13

Applicant: TENNECO CHEM

Inventor： HEALY L ,  WANG W ,  GROSS J

IPC: B32B27/00 ,  D04H1/46 ,  D04H13/00 ,  D06N3/14 ,  B32B3/26 ,  B32B7/02 ,  B32B7/08

CPC classification number: B32B5/06 ,  B32B5/02 ,  B32B5/08 ,  B32B5/145 ,  B32B5/18 ,  B32B5/245 ,  B32B2260/021 ,  B32B2262/02 ,  B32B2262/06 ,  B32B2262/08 ,  B32B2262/14 ,  B32B2266/0264 ,  B32B2266/0278 ,  B32B2307/724 ,  D04H1/46 ,  D04H1/498 ,  D06N3/14 ,  Y10S428/904 ,  Y10T428/24438 ,  Y10T428/24992 ,  Y10T428/24994 ,  Y10T428/24996 ,  Y10T428/249961 ,  Y10T428/249986 ,  Y10T428/2969 ,  Y10T442/667

Abstract: LEATHER REPLACEMENT PRODUCTS ARE PREPARED BY NEEDLING A FLEECE INTO A POLYURETHANE FOAM, NEEDLING A SECOND FLEECE ONTO THE RESULTING WEB AND DEPOSITING A POLYURETHANE ELASTOMER INTO THE VOID SPACES AND INTERSTICES OF THE RESULTING PRODUCTS.