Title:
A SYNTHETIC BASED SELF SEAL ADHESIVE SYSTEM FOR PACKAGING
Document Type and Number:
WIPO Patent Application WO1999065998
Kind Code:
A3
Abstract:
The present invention provides a waterbase self seal adhesive system utilizing a self seal adhesive containing no natural rubber. The self seal adhesive system is comprised of a transfer (front) adhesive disposed on a transfer (front) web and an anchor (back) adhesive disposed on an anchor (back) web with the two adhesives forming the seal for the package. The self seal adhesives bond to themselves when pressure is applied to close or seal the packaging material. In one embodiment, when peeled apart, the adhesive transfers from one substrate of the package to the other substrate of the package to enable opening of the package and thereafter prevents resealing of the package. In another embodiment, when peeled apart, the adhesive splits, adhesively fails from either or both the front web or the back web, or destroys one or both of the substrates of the package. In either embodiment, primers and release coatings may also be used to enhance performance of the self seal adhesive.
Inventors:
WASSERMAN CHARLES J
STORY HAROLD G
STORY HAROLD G
Application Number:
PCT/US1999/012261
Publication Date:
February 10, 2000
Filing Date:
June 02, 1999
Export Citation:
Assignee:
ATO FINDLEY INC (US)
International Classes:
C09J121/02; C09J133/06; (IPC1-7): C09J7/02; B65D75/58
Domestic Patent References:
| WO1999039989A1 | 1999-08-12 | |||
| WO1996011236A1 | 1996-04-18 |
Foreign References:
| EP0683216A1 | 1995-11-22 | |||
| US5691052A | 1997-11-25 | |||
| EP0338304A2 | 1989-10-25 | |||
| US5616400A | 1997-04-01 | |||
| EP0872530A1 | 1998-10-21 |
Other References:
DATABASE WPI Section Ch Week 198831, Derwent World Patents Index; Class A18, AN 1988-215573, XP002900693
DATABASE WPI Section Ch Week 199612, Derwent World Patents Index; Class A18, AN 1996-112932, XP002900694
DATABASE WPI Section Ch Week 199612, Derwent World Patents Index; Class A18, AN 1996-112932, XP002900694
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