Resealable articles and process

Details Resealable articles and process Resealable articles and process

1983-05-26

1985-02-19

Thomas, Alexander S.

Severing by tearing or breaking

Severing by manually forcing against fixed edge

With housing for work supply

225 50, 206390, 206447, 428 35, 428 40, 428194, 428906, 156344, 383 86, 383 95, B32B 306, B26F 302

Patent

active

045000212

ABSTRACT:
Articles are provided that include pressure sensitive adhesive compositions which are especially suitable for forming contact bonds that are resealable 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 or 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. Articles that particularly advantageously utilize these compositions are thin-walled storage or sandwich bag products made of a polyolefin or other film that has a releasable and resealable sealing strip. Others include peelable labels and note pads and dispensers for thin storage wrap products.

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Shell Oil Co. Bull., "Kraton 1107 Rubber Based Adhesives".
Shell Oil Co. Bull., "Formulations Based on Kraton DE 1112 Rubber".
Shell Oil Co. Bull., "Kraton XG-1657 Rubber".

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