Devices and methods for controlling headspace humidity and oxygen levels
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61L-009/00
A61K-047/22
A23L-003/3436
A61K-047/12
B01J-020/22
B01D-053/14
B65D-081/26
B01J-020/28
A23L-003/3517
A23L-003/3544
출원번호
US-0695297
(2017-09-05)
등록번호
US-10201612
(2019-02-12)
발명자
/ 주소
Egberg, David C.
Esse, Robert L.
출원인 / 주소
Boveda, Inc.
대리인 / 주소
Padmanabhan & Dawson PLLC.
인용정보
피인용 횟수 :
0인용 특허 :
71
초록▼
A humidity control device for use in maintaining the desired humidity of a closed environment, e.g., a container, while also decreasing headspace oxygen, the device including a water vapor and oxygen permeable pouch, an aqueous salt solution containing humidity controlling salts in combination with
A humidity control device for use in maintaining the desired humidity of a closed environment, e.g., a container, while also decreasing headspace oxygen, the device including a water vapor and oxygen permeable pouch, an aqueous salt solution containing humidity controlling salts in combination with salts of ascorbic acid or isomers thereof.
대표청구항▼
1. A liquid humidity and oxygen control device for use in an enclosure for maintaining a desired relative humidity and oxygen level of the enclosure, the device comprising: a water vapor and oxygen permeable and liquid impermeable pouch, the pouch defining an interior space, and formed from material
1. A liquid humidity and oxygen control device for use in an enclosure for maintaining a desired relative humidity and oxygen level of the enclosure, the device comprising: a water vapor and oxygen permeable and liquid impermeable pouch, the pouch defining an interior space, and formed from material comprising an oxygen permeability rate comprising, in an atmosphere of approximately 70 degrees F., at least 0.2 ml of headspace oxygen per square inch per 24-hour period; andan effective amount of a humidity and oxygen control solution disposed within the interior space and comprising a salt solution comprising a nonionic substance selected from the group consisting of propylene glycol, glycerin, and a simple sugar. 2. The humidity and oxygen control device of claim 1, wherein the at least one simple sugar is selected from the group consisting of: glucose, and fructose and sugar alcohols. 3. The humidity and oxygen control device of claim 2, wherein the sugar alcohol is selected from the group consisting of: xylitol, sorbitol and mannitol. 4. The humidity and oxygen control device of claim 1, wherein the pH of the solution is between 6.0 and 10. 5. The humidity and oxygen control device of claim 1, where the solution contains at least one of ascorbate isomer salts and erythorbic isomer salts. 6. The humidity and oxygen control device of claim 1, wherein said humidity control solution is thickened by an amount of one or more compatible viscosity control agents selected from the group consisting of chemically modified cellulose and xanthan gum. 7. The humidity and oxygen control device of claim 1, wherein material of the pouch is selected from the group consisting of polyesters, polyamides, poly lactate, polyolefin, and combinations thereof. 8. The humidity and oxygen control device of claim 1, further comprising a water vapor and oxygen impermeable backing configured to be arranged over an opening of the enclosure. 9. The humidity and oxygen control device of claim 8, wherein the backing comprises an adhesive material. 10. A non-plastic container defining a volume therein, the container having a lid configured to enclose an opening of the container, and comprising: a humidity and oxygen control device for maintaining a desired relative humidity and oxygen level within the container, the humidity and oxygen control device comprising: a water vapor and oxygen permeable and liquid impermeable pouch arranged within the container, the pouch defining an interior space, and formed from material comprising an oxygen permeability rate; andan effective amount of a humidity and oxygen control material disposed within the interior space of the pouch and comprising a salt solution comprising a nonionic substance selected from the group consisting of propylene glycol, glycerin, and a simple sugar. 11. The container of claim 10, wherein the oxygen permeability rate comprises, in an atmosphere of approximately 70 degrees F., at least 0.2 ml of headspace oxygen per square inch per 24-hour period. 12. The container of claim 10, wherein the lid comprises threading for engaging threading of the container. 13. The container of claim 10, wherein the humidity and oxygen control device comprises a water vapor and oxygen impermeable backing configured to be arranged between the lid and the opening of the container. 14. The container of claim 13, wherein the backing comprises an adhesive material. 15. The container of claim 10, wherein the at least one simple sugar is selected from the group consisting of: glucose, fructose, and sugar alcohols. 16. The container of claim 15, wherein the sugar alcohol is selected from the group consisting of: xylitol, sorbitol and mannitol. 17. A lid for an enclosure of an opening of a non-plastic container defining a volume therein, the lid comprising: a container engaging portion; anda humidity and oxygen control device for maintaining a desired relative humidity and oxygen level within the container, the humidity and oxygen control device comprising: a humidity and oxygen impermeable backing configured to be arranged between the container engaging portion and an opening of the container;coupled to the backing, a water vapor and oxygen permeable and liquid impermeable pouch configured to be arranged within the container, the pouch defining an interior space, and formed from material comprising an oxygen permeability rate; andan effective amount of a humidity and oxygen control material disposed within the interior space of the pouch and comprising a salt solution comprising a nonionic substance selected from the group consisting of propylene glycol, glycerin, and a simple sugar. 18. The lid of claim 17, wherein the oxygen permeability rate comprises, in an atmosphere of approximately 70 degrees F., at least 0.2 ml of headspace oxygen per square inch per 24-hour period. 19. The lid of claim 17, wherein the container engaging portion comprises threading for engaging threading of the container. 20. The lid of claim 17, wherein the backing comprises an adhesive material.
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