Humidity control system

• US 9,616,381 B2
• Filed: 08/01/2016
• Issued: 04/11/2017
• Est. Priority Date: 08/11/2015
• Status: Active Grant

• Current Assignee: Desiccare Incorporated
• Original Assignee: Desiccare Incorporated
• Inventors: Glorioso, Sammie Joe, Blankenhorn, Benjamin Edward
• Primary Examiner(s): Jones, Christopher P
• Application Number:
  US15/225,771
• Publication Number:
  US 20170043292A1
• Time in Patent Office: 253 Days
• CPC Class Codes: B01D 2252/103 Water
• CPC Class Codes: B01D 2252/202 Alcohols or their derivatives
• CPC Class Codes: B01D 2252/50 Combinations of absorbents
• CPC Class Codes: B01D 2253/20 Organic adsorbents
• CPC Class Codes: B01D 2257/104 Oxygen
• CPC Class Codes: B01D 2257/90 Odorous compounds not provided for in groups B01D2257/00 - B01D2257/708
• CPC Class Codes: B01D 53/0407 Constructional details of adsorbing systems
• CPC Class Codes: B01D 53/261 by adsorption
• CPC Class Codes: B01D 53/263 by absorption
• CPC Class Codes: B01D 53/28 Selection of materials for use as drying agents
• CPC Class Codes: B01J 20/02 comprising inorganic material
• CPC Class Codes: B01J 20/22 comprising organic material
• CPC Class Codes: B01J 20/24 Naturally occurring macromolecular compounds, e.g. humic acids or their derivatives
• CPC Class Codes: B01J 20/261 obtained by reactions only involving carbon to carbon unsaturated bonds macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds per se C08F
• CPC Class Codes: B01J 20/262 obtained otherwise than by reactions only involving carbon to carbon unsaturated bonds, e.g. obtained by polycondensation macromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds per se C08G
• CPC Class Codes: B01J 20/28047 Gels
• CPC Class Codes: B01J 20/2805 Sorbents inside a permeable or porous casing, e.g. inside a container, bag or membrane
• CPC Class Codes: B65D 65/42 Applications of coated or impregnated materials
• CPC Class Codes: B65D 79/02 Arrangements or devices for indicating incorrect storage or transport B65D79/005 takes precedence ; measuring devices G01
• CPC Class Codes: B65D 81/266 for absorbing gases, e.g. oxygen absorbers or desiccants B65D51/244, B65D51/30 take precedence
• CPC Class Codes: B65D 81/268 : the absorber being enclosed in a small pack, e.g. bag, included in the package
• CPC Class Codes: G01N 21/81 : Indicating humidity
• CPC Class Codes: G06K 19/0717 : the sensor being capable of sensing environmental conditions such as temperature history or pressure
• CPC Class Codes: G06Q 30/0185 : Product, service or business identity fraud
• CPC Class Codes: G08B 13/2448 : Tag with at least dual detection means, e.g. combined inductive and ferromagnetic tags, dual frequencies within a single technology, tampering detection or signalling means on the tag
• CPC Class Codes: G08B 13/2451 : Specific applications combined with EAS

Abstract

A humidity control system includes a humectant system including a humectant material including a viscous miscible glycerol and water mix and a humectant package.

Claims

1. A humidity control system comprising:

a humectant package;

a humectant material comprising;

a viscous miscible glycerol; and

water; and

a coating coated on an inner surface of the humectant package and between the humectant package and the humectant material, the coating comprising polyethylene, oriented polystyrene, a porous polyethylene resin, polyurethane, a polyether block amide, and/or a polymeric mixture comprising a hydrophilic monomer.

2. The humidity control system of claim 1, wherein the coating has a thickness of between about 0.001 inch and 0.01 inch.

3. The humidity control system of claim 2, wherein the thickness of the coating is 0.001 inch.

4. The humidity control system of claim 1, wherein the water vapor transmission rate of the humectant system is between about 16 g/100 sq. in/day and about 42 g/100 sq. in/day.

5. The humidity control system of claim 1, wherein the humectant material further comprises a gelling agent.

6. The humidity control system of claim 5, wherein the gelling agent comprises gelatin, xanthan, alginate and/or pectin.

7. The humidity control system of claim 5, wherein the humectant material comprises between about 70% to about 90% by weight glycerol.

8. The humidity control system of claim 7, wherein the humectant material comprises:

25% by weight the water;

1% by weight the gelling agent; and

74% by weight the glycerol.

9. The humidity control system of claim 7, wherein the humectant material comprises:

20% by weight the water;

1% by weight the gelling agent; and

79% by weight the glycerol.

10. The humidity control system of claim 7, wherein the humectant material comprises between about 0.9% and about 1.1% by weight of the gelling agent.

11. The humidity control system of claim 1, further comprising a humidity indicating card affixed to a surface of the humectant package by an adhesive.

12. The humidity control system of claim 11, wherein the adhesive comprises glue, hot melt adhesive, single-sided tape, double-sided tape and/or adhesive backing.

13. The humidity control system of claim 11, further comprising a security device.

14. The humidity control system of claim 13, wherein the security device comprises a radio frequency identification tag and/or an electronic article surveillance tag.

15. The humidity control system of claim 13, wherein the security device is affixed to the humectant package by a second adhesive.

16. The humidity control system of claim 15, wherein the second adhesive comprises at least one of a double-sided tape, a single-sided tape, a printed tag, an adhesive backing, and a hot melt adhesive.

17. The humidity control system of claim 12, wherein the adhesive comprises hot melt adhesive.

18. The humidity control system of claim 1, wherein the coating adhesively joins together opposing sides of the humectant package.

19. The humidity control system of claim 1, wherein the coating comprises the polyether block amide.