Resealable pressure sensitive adhesives and products

Details Resealable pressure sensitive adhesives and products Resealable pressure sensitive adhesives and products

1980-12-24

1983-08-16

Cockeram, H. S.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524306, 524310, 524311, 524312, 524324, 524476, 524482, 524484, 524505, 525 98, 428497, 428500, 428516, 428521, C08L 9300, C08K 501, C08L 9100, C08L 900

Patent

active

043992498

ABSTRACT:
Pressure sensitive adhesive compositions are provided that are especially suitable for forming contact bonds that are resealable to polyethylene surfaces at room temperature. Such adhesive compositions include a blend of a linear or a radial block copolymer, an end-block modifying resin compatible with the end or thermoplastic block of the copolymer and incompatible with the mid of elastomeric block, a plasticizing process oil compatible with the mid or elastomeric block, and, only if desired, not more than about 14 weight percent of a mid block or elastomeric block associating or modifying resin compatible with the mid or elastomeric block and incompatible with the end or thermoplastic block. A particularly advantageous utilization of these compositions is as a releasable and resealable sealing strip for thin-walled storage or sandwich bag products made of a polyolefin film.

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