Protective barrier coating for tubes and cores

Patent metadata

Field	Value
Publication number	US-11499270-B2
Application number	US-202117175272-A
Country	US
Kind code	B2
Filing date	Feb 12, 2021
Priority date	May 29, 2018
Publication date	Nov 15, 2022
Grant date	Nov 15, 2022

Abstract

A paperboard carrier suitable for use with textiles may include one or more strips of paperboard secured together to form a hollow tubular body, the body having an outer surface, and a coating covering some or all of the outer surface. The coating comprises a coating agent such as a silicon resin dispersed in a solvent such as isopropyl alcohol and little or no water. The coating may be applied to the outer surface by using a plurality spray nozzles arranged axially or circumferentially about the carrier.

First claim

The invention claimed is:

1. A paperboard carrier suitable for use in winding a material thereon, the carrier comprising:
one or more strips of paperboard secured together to form an elongate structure, the elongate structure defining an outer surface; and
a non-aqueous coating disposed on the outer surface in a predetermined region, the coating comprising a coating agent and a solvent, wherein:
the coating is not heat cured.

2. The paperboard carrier of claim 1 , wherein:
the coating agent is selected from the group consisting of a fluorourethane copolymer, a silicone resin and a fluoroalkyl acrylate copolymer emulsion; and
the solvent is selected from the group consisting of acetone, methyl alcohol and isopropyl alcohol.

3. The paperboard carrier of claim 2 , wherein:
the coating consists essentially of the coating agent and the solvent.

4. The paperboard carrier of claim 1 , wherein:
the coating agent is a fluorourethane copolymer; and
the solvent is acetone.

5. The paperboard carrier of claim 4 , wherein:
the coating comprises about 10% to about 20% fluorourethane copolymer and from about 80% to about 90% acetone.

6. The paperboard carrier of claim 1 , wherein:
the coating agent is a silicone resin; and
the solvent is isopropyl alcohol.

7. The paperboard carrier of claim 6 , wherein:
the coating comprises about 4% to about 10% silicone resin and from about 90% to about 96% isopropyl alcohol.

8. The paperboard carrier of claim 6 , wherein:
the silicone resin comprises a siloxane.

9. The paperboard carrier of claim 6 , wherein:
the silicone resin comprises silicone resin and octamethylcyclotetrasiloxane.

10. The paperboard carrier of claim 6 , wherein:
the silicone resin comprises about 50% silicone resin and about 50% octamethylcyclotetrasiloxane.

11. The paperboard carrier of claim 1 , wherein:
the coating agent is a fluoroalkyl acrylate copolymer emulsion; and
the solvent is methyl alcohol.

12. The paperboard carrier of claim 1 , wherein:
the coating comprises about 50% fluoroalkyl acrylate copolymer emulsion and about 50% methyl alcohol.

13. The paperboard carrier of claim 1 , wherein:
the coating agent is a reactive silicone resin that produces a durable moisture barrier when the coating is applied to the outer surface.

14. The paperboard carrier of claim 1 , wherein:
the coating is a predetermined color that identifies a type of carrier.

15. The paperboard carrier of claim 1 , wherein:
the coating is a spray coating.

16. The paperboard carrier of claim 1 , wherein:
the predetermined region is one or more annular bands.

17. The paperboard carrier of claim 16 , wherein:
the one or more annular bands are arranged contiguously such that the coating is uninterrupted.

18. The paperboard carrier of claim 1 , wherein:
the elongate structure has two ends; and
the predetermined region is one or more circumferential bands proximate one or both ends.

19. The paperboard carrier of claim 1 , wherein:
the material is a textile having a textile coating; and
a concentration of the coating agent in the solvent is a function of the textile coating.

20. A carrier suitable for use in winding a material thereon, the carrier comprising:
an elongated tubular body having two ends and defining an outer surface; and
a non-aqueous, fast curing, room temperature air dried coating disposed on the outer surface in a predetermined region, the coating comprising a coating agent and a non-aqueous solvent.

Assignees

• Sonoco Dev Inc

Inventors

• Hernandez Rosario Ismael Antonio
• Lintz Aaron Edward
• Kelley Kevin Manly

Classifications

• B65H2701/522

  Chemical agents · CPC title

• B65H75/10

  without flanges, e.g. cop tubes · CPC title

• B65H75/50

  Methods of making reels, bobbins, cop tubes, or the like by working an unspecified material, or several materials · CPC title

• B65H2701/176

  Cardboard · CPC title

• B31C3/00 Primary

  Making tubes or pipes by feeding obliquely to the winding mandrel centre line · CPC title