Back-off preventing resealable adhesives

Patent metadata

Field	Value
Publication number	US-12006101-B2
Application number	US-202117467768-A
Country	US
Kind code	B2
Filing date	Sep 7, 2021
Priority date	Mar 29, 2019
Publication date	Jun 11, 2024
Grant date	Jun 11, 2024

Abstract

Adhesive compositions that replace gaskets and liners in sealing applications for packages that are detachable with hand force are described. The adhesive compositions are particularly useful in preventing leaks and spillage during storage and transport of its packaged contents. Advantageously, the adhesive composition provides packages with (1) a removal torque of from about 4 to about 20 in-lb and (2) resealable torque on subsequent openings of from about 2 to about 15 in-lb, measured in accordance to ASTM D2063.

First claim

What is claimed is:

1. An article of manufacture comprising
a first threaded member, and
a second threaded member, matingly engaged with said first threaded member,
wherein the threads of said first threaded member are at least partially coated with a resealable adhesive comprising a waterborne adhesive; and
wherein the resealable adhesive is characterized as having (1) a removal torque of from about 4 to about 20 in-lb, measured in accordance to ASTM D2063, and (2) a resealability torque of from about 2 to about 15 in-lb, measured in accordance to ASTM D2063.

2. The article of manufacture of claim 1 , wherein the waterborne adhesive comprises a pressure sensitive adhesive, ethylene vinyl acetate-based adhesive or polyacrylic-based adhesive.

3. The article of manufacture of claim 1 , wherein the first or the second threaded member is independently made of polypropylene, polyethylene, high density polyethylene, low density polyethylene, polyvinyl chloride or polyethylene terephthalate.

4. The article of manufacture of claim 1 , wherein the first threaded member is a cap, lid or closure.

5. The article of manufacture of claim 1 , wherein the first threaded member is a container neck or bottle neck.

6. An article of manufacture comprising a non-threaded closure member having an area of a circumference or perimeter dimension and a height dimension,
wherein the area of the closure member is at least partially coated with a resealable adhesive comprising a waterborne adhesive, further comprising a second non-threaded member matingly engaged with the area of said first non-threaded member, whereupon the resealable adhesive is coated between the first and the second non-threaded members; wherein the resealable adhesive is characterized as having a removal torque of from about 4 to about 20 in-lb, measured in accordance to ASTM D2063; wherein the threaded member has a resealability torque of from about 2 to about 15 in-lb, measured in accordance to ASTM D2063.

7. The article of manufacture of claim 6 , wherein the waterborne adhesive comprises a pressure sensitive adhesive, ethylene vinyl acetate-based adhesive or polyacrylic-based adhesive.

8. The article of manufacture of claim 6 , wherein the first or the second non-threaded member is independently made of polypropylene, polyethylene, high density polyethylene, low density polyethylene, polyvinyl chloride or polyethylene terephthalate.

9. The article of manufacture of claim 6 , wherein the first non-threaded member is a cap, lid or closure.

10. The article of manufacture of claim 6 , wherein the first non-threaded member is a container neck or bottle neck.

11. A method of sealing members comprising:
(a) providing a first member;
(b) providing a second member capable of matingly engaging with said first member; at least one of the said first and second members being at least partially coated with a resealable coating composition;
(c) matingly engaging said first and second members;
whereupon the reseable coating composition substantially fills the matingly engaging space between the first and the second members;
wherein the resealable coating composition is a waterborne adhesive characterized as having a removal torque of from about 4 to about 20 in-lb, measured in accordance to ASTM D2063;
wherein the resealable adhesive has a resealability torque of from about 2 to about 15 in-lb, measured in accordance to ASTM D2063.

12. The method of sealing members of claim 11 , wherein the first or the second member is independently made of polypropylene, polyethylene, high density polyethylene, low density polyethylene, polyvinyl chloride or polyethylene terephthalate.

13. The method of sealing members of claim 11 , wherein at least one of the said first and second members is a cap, lid or closure.

14. The method of sealing members of claim 11 , wherein the first and the second members are threaded members.

15. The method of sealing members of claim 11 , where in the first and the second members are non-threaded members.

Assignees

• Henkel Ag & Co Kgaa

Inventors

• Foo Winston
• Kriegl Alexis
• Wolpert Christopher
• Bull Nicholas
• Eminger Megan

Classifications

• B65D43/02

  Removable lids or covers (with means for piercing, cutting, or tearing a frangible inner closure B65D51/22) · CPC title

• B65D77/20

  by applying separate lids or covers {, i.e. flexible membrane or foil-like covers} · CPC title

• C09J123/0853

  Vinylacetate · CPC title

• C09J133/00 Primary

  Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers · CPC title

• C09J2433/00

  Presence of (meth)acrylic polymer · CPC title