Resealable articles and process

A peelable label having a back face mounted onto a release sheet and a resealing area located on the back face of the peelable label, the improvement comprising said resealing area being a resealable and releasable pressure sensitive adhesive composition including:

• between about 20 and 60 weight percent based on the total weight of the composition of a block copolymer having non-elastomeric polymer blocks and at least one elastomeric polymer block, each said non-elastomeric block being a monoalkenyl arene polymer block, said elastomeric block being a conjugated diene polymer block;
• between about 5 and 50 weight percent based on the total weight of the composition of an end block modifying resin that includes a monoalkenyl arene, said end block modifying resin being compatible predominantly with the non-elastomeric block and substantially incompatible with the elastomeric block;
• between about 20 and 60 weight percent based on the total weight of the composition of a plasticizing process oil that is compatible predominantly with said elastomeric block and generally incompatible with the non-elastomeric block of the block copolymer;
• and
• not more than about 14 weight percent, based on the total weight of the composition, of a mid block modifying resin that is compatible predominantly with the elastomeric block and substantially incompatible with the non-elastomeric block of the block copolymer.

A pad of peelable sheets, each said sheet having a back face and a resealing area located on each of said back faces of the peelable sheets, the improvement comprising said resealing area being a resealable and releasable pressure sensitive adhesive composition including:

• between about 20 and 60 weight percent based on the total weight of the composition of a block copolymer having non-elastomeric polymer blocks and at least one elastomeric polymer block, each said non-elastomeric block being a monoalkenyl arene polymer block, said elastomeric block being a conjugated diene polymer block;
• between about 5 and 50 weight percent based on the total weight of the composition of an end block modifying resin that includes a monoalkenyl arene, said end block modifying resin being compatible predominantly with the non-elastomeric block and substantially incompatible with the elastomeric block;
• between about 20 and 60 weight percent based on the total weight of the composition of a plasticizing process oil that is compatible predominantly with said elastomeric block and generally incompatible with the non-elastomeric block of the block copolymer;
• and
• not more than about 14 weight percent, based on the total weight of the composition, of a mid block modifying resin that is compatible predominantly with the elastomeric block and substantially incompatible with the non-elastomeric block of the block copolymer.

A dispenser having a roll of wrapping film therewithin and a resealing area located on said dispenser at a position at which the resealing area adheres a leading portion of the wrapping film thereto, the improvement comprising said resealing area being a resealable and releasable pressure sensitive adhesive composition including:

• between about 20 and 60 weight percent based on the total weight of the composition of a block copolymer having non-elastomeric polymer blocks and at least one elastomeric polymer block, each said non-elastomeric block being a monoalkenyl arene polymer block, said elastomeric block being a conjugated diene polymer block;
• between about 5 and 50 weight percent based on the total weight of the composition of an end block modifying resin that includes a monoalkenyl arene, said end block modifying resin being compatible predominantly with the non-elastomeric block and substantially incompatible with the elastomeric block;
• between about 20 and 60 weight percent based on the total weight of the composition of a plasticizing process oil that is compatible predominantly with said elastomeric block and generally incompatible with the non-elastomeric block of the block copolymer;
• and
• not more than about 14 weight percent, based on the total weight of the composition, of a mid block modifying resin that is compatible predominantly with the elastomeric block and substantially incompatible with the non-elastomeric block of the block copolymer.

A process of providing a storage bag having a resealable and releasable pressure sensitive adhesive area, comprising:

• blending together an adhesive composition including:
• between about 20 and 60 weight percent based on the total weight of the composition of a block copolymer having non-elastomeric polymer blocks and at least one elastomeric polymer block, each said non-elastomeric block being a monoalkenyl arene polymer block, said elastomeric block being a conjugated diene polymer block,
• between about 5 and 50 weight percent based on the total weight of the composition of an end block modifying resin that includes a monoalkenyl arene, said end block modifying resin being compatible predominantly with the non-elastomeric block and substantially incompatible with the elastomeric block,
• between about 20 and 60 weight percent based on the total weight of the composition of a plasticizing process oil that is compatible predominantly with said elastomeric block of the block copolymer and generally incompatible with the non-elastomeric block of the block copolymer and
• not more than about 14 weight percent based on the total weight of the composition of a mid block modifying resin that is compatible predominantly with the elastomeric block and substantially incompatible with the non-elastomeric block of the block copolymer;
• and
• applying said adhesive composition to a polyolefin film panel of the storage bag, said adhesive composition being the resealable and releasable area of the storage bag.