IP Library Granted Patent US 7,300,500
Granted Patent B2
US 7,300,500 · App. 10/962,214 · Granted Nov 27, 2007

Adsorbent-formed object and an adsorbent unit

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Quick Facts
Patent No.
US 7,300,500
App. No.
10/962,214
Granted
Nov 27, 2007
Kind
B2
Abstract

An adsorbent molded article comprising granular absorbant and binder having sustained adsorption over an indefinite period; an adsorbent unit employing said adsorbent molded article; and a housing employing said adsorbent molded article or adsorbent unit.

Claims (45)

1. Adsorbent molded article for use within a housing, said adsorbent molded article comprising as constituent materials thereof:

granular adsorbent coated at least partially with an absorption-regulating substance comprising a fatty acid and/or derivative thereof; and

binder;

wherein an adsorbent molded article having volume of about 98 mm 3 , when placed in a cell of about 14.3 cm 3 capacity having an air intake and an air outlet, supplied via said air intake with a continuous 50 cm 3 /min flow of hydrated gas having a dew point of about −15° C., and measured for the percentage of moisture removed from hydrated gas exiting via said air outlet, takes about 10 hours or more for said percentage of moisture removed to reach about 30% or less.

2. Adsorbent molded article according to claim 1 wherein said granular adsorbent are coated completely with an absorption-regulating substance.

3. Adsorbent molded article for use within a housing, comprising as constituent materials thereof:

granular adsorbent coated at least partially with an absorption-regulating substance comprising fatty acid and/or derivative thereof; and

binder resin.

4. Porous adsorbent molded article according to claim 1 .

5. Porous adsorbent molded article according to claim 2 .

6. Porous adsorbent molded article according to claim 3 .

7. Adsorbent molded article according to claim 1 wherein said granular adsorbent is a moisture adsorbent.

8. Adsorbent molded article according to claim 2 wherein said granular adsorbent is a moisture adsorbent.

9. Adsorbent molded article according to claim 3 wherein said granular adsorbent is a moisture adsorbent.

10. Adsorbent molded article according to claim 4 wherein said granular adsorbent is a moisture adsorbent.

11. Adsorbent molded article according to claim 6 wherein said granular adsorbent is a moisture adsorbent.

12. Adsorbent molded article according to claim 1 wherein said adsorbent is an alkaline earth metal oxide.

13. Adsorbent molded article according to claim 3 wherein said adsorbent is an alkaline earth metal oxide.

14. Adsorbent molded article for use within a housing according to claim 3 wherein said granular adsorbent is coated completely with said absorption-regulating substance.

15. Adsorbent molded article according to claim 1 wherein said binder is fluororesin and/or polyolefin resin.

16. Adsorbent molded article according to claim 3 wherein said binder is fluororesin and/or polyolefin resin.

17. Adsorbent molded article according claim 1 wherein said binder is polytetrafluoroethylene.

18. Adsorbent molded article according claim 3 wherein said binder is polytetrafluoroethylene.

19. Adsorbent molded article according to claim 1 having spectral reflectance factor in accordance with JIS Z 8722 Method b is of 0.7.

20. Adsorbent molded article according to claim 3 having spectral reflectance factor in accordance with JIS Z 8722 Method b is of 0.7.

21. Adsorbent unit for use within a housing wherein said adsorbent unit comprises adsorbent molded article according to claim 1 .

22. Adsorbent unit for use within a housing wherein said adsorbent unit comprises adsorbent molded article according to claim 3 .

23. Adsorbent unit according to claim 21 wherein said adsorbent molded article is provided at least in part with a pressure sensitive adhesive portion or bonding adhesive portion.

24. Adsorbent unit according to claim 22 wherein said adsorbent molded article is provided at least in part with a pressure sensitive adhesive portion or bonding adhesive portion.

25. Adsorbent unit according to claim 21 wherein said adsorbent molded article is contained within a containing structure composed at least in part of breathable sheet material.

26. Adsorbent unit according to claim 22 wherein said adsorbent molded article is contained within a containing structure composed at least in part of breathable sheet material.

27. Adsorbent unit according to claim 25 wherein said breathable sheet material is porous polytetrafluoroethylene film.

28. Adsorbent unit according to claim 26 wherein said breathable sheet material is porous polytetrafluoroethylene film.

29. Adsorbent unit according to claim 25 wherein said containing structure is unified with the housing.

30. Adsorbent unit according to claim 26 wherein said containing structure is unified with the housing.

31. Housing having in the interior thereof adsorbent molded article according to claim 1 .

32. Housing having in the interior thereof adsorbent molded article according to claim 3 .

33. Housing having in the interior thereof adsorbent unit according to claim 21 .

34. Housing having in the interior thereof adsorbent unit according to claim 22 .

35. Housing according to claim 31 which is a semi-hermetic enclosure.

36. Housing according to claim 32 which is a semi-hermetic enclosure.

37. Organic electroluminescent element comprising housing according to claim 31 .

38. Organic electroluminescent element comprising housing according to claim 32 .

39. Hard disk drive unit comprising housing according to claim 31 .

40. Hard disk drive unit comprising housing according to claim 32 .

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 22, 2019
From: W. L GORE & ASSOCIATES, INC.; W.L. GORE & ASSOCIATES, CO., LTD.
To: Z. KURODA (THAILAND) CO., LTD.
Reel/Frame 048417/0676 →
CHANGE OF NAME Recorded May 10, 2018
From: JAPAN GORE-TEX INC.
To: W. L. GORE & ASSOCIATES, CO., LTD
Reel/Frame 046172/0620 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 7, 2005
From: OKADA, YUICHI; HIRANO, YUKO; KUBO, SHINGO
To: JAPAN GORE-TEX, INC.
Reel/Frame 016336/0796 →