Packaging material

Claim 2

A PACKING SHEET MATERIAL ADAPTED FOR USE IN PROVIDING SEALED ENCLOSURES WITH PROTECTIVE ATMOSPHERES FOR SMALL, GREASE-FREE, METAL ARTICLES SO AS TO PROTECT SAID METAL ARTICLES FROM THE CORROSIVE ACTION OF WATER VAPOR AND OXYGEN, SAID SHEET MATERIAL COMPRISING A FLEXIBLE, RELATIVELY-STIFF, SMOOTH SURFACED, SHEET SUPPORT MEMBER AND A MACROSCOPICALLY HOMOGENEOUS FILM-LIKE COATING ADHERED THEREOVER, SAID COATING COMPRISING A HEAT-ACTIVATIBLE, THERMOPLASTIC, FLEXIBLE NORMALLY NON-TACKY, VINYL RESIN ADHESIVE AND A VOLATILE INHIBITOR OF THE CORROSION OF METALS DISPERSED THROUGHOUT SAID ADHESIVE, THE WEIGHT RATIO OF SAID ADHESIVE TO SAID CORROSION INHIBITOR BEING BETWEEN 1:15 AND 85:25 WITH THE TOTAL DRY SOLIDS COATING WEIGHT OF SAID ADHESIVE AND CORROSION INHIBITOR BEING BETWEEN 10 TO 40 LBS, PER REAM OF SHEET SUPPORT MEMBER EQUIVALENT TO 500 SHEETS MEASURING 24''''X 36'''' SAID CORROSION INHIBITOR BEING CHARACTERIZED BY HAVING A VAPOR PRESURE AT LEAST GREATER THAN 0.00002 MM. HG AT 21* C. AND BY BEING NON-REACTIVE WITH SAID ADHESIVE

Claim 3

A PROCESS FOR PACKING FOR SMALL, GRASE-FREE, METAL ARTICLES IN HEAT-SEALED, BARRIER-TYPE ENCLOSURES SO AS TO PROTECT SAID METAL ARTICLES AGAINST THE CORROSIVE ACTION OF WATER VAPOR AND OXYGEN SAID PROCESS COMPRISING WRAPPING SAID ARTICLES WITH A PACKAGING MATERIAL COMPRISING A FLEXIBLE, RELATIVELY-STIFF, SMOOTH-SURFACED, SHEET SUPPORT MEMBER AND A MACROSCOPICALLY HOMOGENEOUS COATING ADHERED THEREOVER SAID COATING COMPRISING A HEAT ACTIVTABLE THERMOPLASTIC, NORMALLY NON-TACKY ADHESIVE AND A VOLATILE INHIBITOR OF THE CORROSION OF METALS DISPERSED THROUGHOUT SAID ADHESIVE, SAID CORROSION INHIBITOR BEING CHARACTERIZED BY A VAPOR PRESSURE AT LEAST GREATER THAN 0.0002 MM HG AT 21* C. AND BY BEING NON-REACTIVE WITH SAID ADHESIVE, SAID PACKAGING MATERIAL BEING DISPOSED ABOUT SAID METAL ARTICLES WITH ITS COATED SIDE FACING INWARDLY AND WITH AREAS THEREOF MEETING TO FROM AN ENCLOSURE SAID METAL ARTICLES, AND (2) APPLYING HEAT AND PRESSURE TO MEETING AREAS OF SAID PACKAGING MATERIAL SO AS TO ACTIVATE THE ADHESIVE IN THE COATING THEREOF THE SEAL BETWEEN SAID MEETING AREAS WHILE SIMULTANEOUSLY ACCELERATING THE VOLATIZATION OF THE CORROSION INHIBITOR FROM AREAS OF THE COATING IMMEDIATELY ADJACENT TO THOSE AREAS TREATED WITH HEAT, THEREBY TO FORM A HEAT SEALED ENCLOSURE WITH A PROTECTIVE ATMOSPHERE THEREIN.

Claim 4

A PROCESS FOR PACKING FOR SMALL, GRASE-FREE, METAL ARTICLES IN HEAT-SEALED, BARRIER-TYPE ENCLOSURES SO AS TO PROTECT SAID METAL ARTICLES AGAINST THE CORROSIVE ACTION OF WATER VAPOR AND OXYGEN SAID PROCESS COMPRISING WRAPPING SAID ARTICLES WITH A PACKAGING MATERIAL COMPRISING A FLEXIBLE, RELATIVELY-STIFF, SMOOTH-SURFACED, SHEET SUPPORT MEMBER AND A MACROSCOPICALLY HOMOGENEOUS COATING ADHERED THEREOVER SAID COATING COMPRISING A HEAT ACTIVTABLE THERMOPLASTIC, NORMALLY NON-TACKY ADHESIVE AND A VOLATILE INHIBITOR OF THE CORROSION OF METALS DISPERSED THROUGHOUT SAID ADHESIVE, SAID CORROSION INHIBITOR BEING CHARACTERIZED BY A VAPOR PRESSURE AT LEAST GREATER THAN 0.0002 MM HG AT 21* C. AND BY BEING NON-REACTIVE WITH SAID ADHESIVE, SAID PACKAGING MATERIAL BEING DISPOSED ABOUT SAID METAL ARTICLES WITH ITS COATED SIDE FACING INWARDLY AND WITH AREAS THEREOF MEETING TO FROM AN ENCLOSURE SAID METAL ARTICLES, AND (2) APPLYING HEAT AND PRESSURE TO MEETING AREAS OF SAID PACKAGING MATERIAL SO AS TO ACTIVATE THE ADHESIVE IN THE COATING THEREOF THE SEAL BETWEEN SAID MEETING AREAS WHILE SIMULTANEOUSLY ACCELERATING THE VOLATIZATION OF THE CORROSION INHIBITOR FROM AREAS OF THE COATING IMMEDIATELY ADJACENT TO THOSE AREAS TREATED WITH HEAT, THEREBY TO FORM A HEAT SEALED ENCLOSURE WITH A PROTECTIVE ATMOSPHERE THEREIN.