Cold seal package and method for making the same
First Claim
1. A method for making a cold seal package comprising:
- applying a first substantially natural latex rubber-free contact adhesive to an anchor surface to form an anchor contact adhesive coating;
applying a release coating composition to a transfer surface to form a release-coated transfer surface;
applying a second substantially natural latex rubber-free contact adhesive to the release-coated transfer surface to form a transfer contact adhesive coating; and
contacting the anchor contact adhesive coating with the transfer contact adhesive coating, each of which are at a temperature of about 50°
C. or less, to form a substantially non-refastenable cold seal between the anchor surface and the release-coated transfer surface;
wherein, upon peeling the anchor and transfer surfaces apart, substantially all of the anchor contact adhesive coating and the transfer contact adhesive coating that formed the cold seal remain on the anchor surface;
wherein the release coating composition comprises a release material blended with a substantially natural latex rubber-free contact adhesive.
2 Assignments
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Accused Products
Abstract
The present invention is directed to a cold seal package that includes constructions wherein two substrates, or two portions of one substrate, are sealingly engaged to one another using a substantially natural latex rubber-free contact adhesive. The two substrates can be easily peeled apart without substantial damage to the substrates. Furthermore, the substrates cannot typically be resealed, or refastened, once peeled apart. That is, the cold seal formed by the adhesive between the substrates is substantially non-refastenable. Advantageously, a cold seal package of the present invention is particularly well suited for aseptic delivery of packaged goods, such as bandages, dressings, and the like.
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Citations
28 Claims
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1. A method for making a cold seal package comprising:
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applying a first substantially natural latex rubber-free contact adhesive to an anchor surface to form an anchor contact adhesive coating; applying a release coating composition to a transfer surface to form a release-coated transfer surface; applying a second substantially natural latex rubber-free contact adhesive to the release-coated transfer surface to form a transfer contact adhesive coating; and contacting the anchor contact adhesive coating with the transfer contact adhesive coating, each of which are at a temperature of about 50°
C. or less, to form a substantially non-refastenable cold seal between the anchor surface and the release-coated transfer surface;
wherein, upon peeling the anchor and transfer surfaces apart, substantially all of the anchor contact adhesive coating and the transfer contact adhesive coating that formed the cold seal remain on the anchor surface;wherein the release coating composition comprises a release material blended with a substantially natural latex rubber-free contact adhesive. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A method for making a cold seal package comprising:
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applying a first substantially natural latex rubber-free contact adhesive to an anchor surface to form an anchor contact adhesive coating; applying a release coating composition to a transfer surface to form a substantially continuous pattern-coated release coating thereon thereby forming a release-coated transfer surface; applying a second substantially natural latex rubber-free contact adhesive to the release-coated transfer surface to form a transfer contact adhesive coating; and contacting the anchor contact adhesive coating with the transfer contact adhesive coating, each of which are at a temperature of about 50°
C. or less, to form a substantially non-refastenable cold seal between the anchor surface and the release-coated transfer surface;
wherein, upon peeling the anchor and transfer surfaces apart, substantially all of the anchor contact adhesive coating and the transfer contact adhesive coating that formed the cold seal remain on the anchor surface. - View Dependent Claims (24)
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25. A method for making a cold seal package comprising:
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applying a first substantially natural latex rubber-free contact adhesive to an anchor surface to form an anchor contact adhesive coating; applying a release coating composition to a transfer surface to form a release-coated transfer surface wherein the anchor surface and the transfer surface are on two different portions of a contiguous sheet material; applying a second substantially natural latex rubber-free contact adhesive to the release-coated transfer surface to form a transfer contact adhesive coating; and contacting the anchor contact adhesive coating with the transfer contact adhesive coating, each of which are at a temperature of about 50°
C. or less, to form a substantially non-refastenable cold seal between the anchor surface and the release-coated transfer surface;
wherein, upon peeling the anchor and transfer surfaces apart, substantially all of the anchor contact adhesive coating and the transfer contact adhesive coating that formed the cold seal remain on the anchor surface. - View Dependent Claims (26)
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27. A method for making a cold seal package comprising:
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applying a first substantially natural latex rubber-free contact adhesive to an anchor surface to form an anchor contact adhesive coating, wherein the anchor surface is part of a substrate comprising a high density polyethylene polymeric film; applying a release coating composition to a transfer surface to form a release-coated transfer surface, wherein the transfer surface is part of a substrate comprising a high density polyethylene polymeric film; applying a second substantially natural latex rubber-free contact adhesive to the release-coated transfer surface to form a transfer contact adhesive coating; and contacting the anchor contact adhesive coating with the transfer contact adhesive coating, each of which are at a temperature of about 50°
C. or less, to form a substantially non-refastenable cold seal between the anchor surface and the release-coated transfer surface;
wherein, upon peeling the anchor and transfer surfaces apart, substantially all of the anchor contact adhesive coating and the transfer contact adhesive coating that formed the cold seal remain on the anchor surface. - View Dependent Claims (28)
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Specification