Multi-layer gas barrier materials for vacuum insulated structure
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F25D-023/00
B29C-051/00
B32B-027/00
F25D-023/06
B32B-027/32
B29C-051/08
B29C-051/14
B29C-051/26
출원번호
US-0980778
(2015-12-28)
등록번호
US-10018406
(2018-07-10)
발명자
/ 주소
Liu, Hua
Deka, Laksha J.
Alshourbagy, Mohamed
Mukherjee, Diptesh
출원인 / 주소
Whirlpool Corporation
대리인 / 주소
Price Heneveld LLP
인용정보
피인용 횟수 :
0인용 특허 :
234
초록▼
A method of forming a vacuum insulated refrigerator cabinet structure includes providing a multi-layer sheet of material comprising at least one layer of barrier material that is disposed between first and second outer structural layers. The barrier material and the first and second outer layers com
A method of forming a vacuum insulated refrigerator cabinet structure includes providing a multi-layer sheet of material comprising at least one layer of barrier material that is disposed between first and second outer structural layers. The barrier material and the first and second outer layers comprise thermoplastic polymers. The multi-layer sheet of material is thermoformed to form a non-planar first component having a central portion and four sidewalls extending transversely from the central portion. The method further includes securing a second component having a central portion and four sidewalls extending transversely from the central portion to the first component to form an interior space therebetween. Porous filler material is positioned in the interior space, and a vacuum is formed in the interior space. The first and second components are sealed together to form a vacuum insulated refrigerator cabinet structure.
대표청구항▼
1. A method of forming a vacuum insulated appliance structure, the method comprising; providing a multi-layer sheet of material comprising at least one layer of barrier material disposed between first and second outer layers, wherein the barrier material and the first and second outer layers compris
1. A method of forming a vacuum insulated appliance structure, the method comprising; providing a multi-layer sheet of material comprising at least one layer of barrier material disposed between first and second outer layers, wherein the barrier material and the first and second outer layers comprise thermoplastic polymers and/or elastomeric material;thermoforming the multi-layer sheet of material to form a non-planar first component having a central portion and four sidewalls extending transversely from the central portion;securing a second component having a central portion and four sidewalls extending transversely from the central portion to the first component to form an interior space therebetween;positioning porous filler material in the interior space;forming a vacuum in the interior space; andsealing the first and second components together to form a vacuum insulated appliance structure. 2. The method of claim 1, wherein: the first component comprises a wrapper of a refrigerator cabinet;the second component comprises a liner of a refrigerator cabinet that is received inside the wrapper. 3. The method of claim 1, wherein: the second component comprises a metal liner of a refrigerator cabinet. 4. The method of claim 1, wherein: the outer layers comprise HIPS or ABS, PP, PBT or PE. 5. The method of claim 4, wherein: the barrier material comprises PVdC, nylon, or liquid crystal polymer. 6. The method of claim 4, wherein: the at least one layer of barrier material comprises first and second barrier layers comprising first and second barrier materials, respectively, wherein the first barrier material is impervious to water vapor, and the second barrier material is impervious to oxygen. 7. The method of claim 6, wherein: the first barrier material comprises at least one of a fluoropolymer, COC, COP, or HDPE. 8. The method of claim 6, wherein: the second barrier material comprises EVOH. 9. The method of claim 6, including: a tie layer disposed between the first and second barrier layers, wherein the tie layer comprises a tying polymer material that bonds to the first and second barrier materials. 10. The method of claim 9, wherein: the tie layer polymer material comprises modified polyolefin with functional groups whereby the tie layer polymer is capable of bonding to polymers and metals. 11. A method of forming a vacuum insulated appliance structure, the method comprising; providing a multi-layer sheet of material comprising at least one layer of barrier material disposed between first and second outer layers, wherein the barrier material and the first and second outer layers comprise thermoplastic polymers and/or elastomeric material;heating and forming the multi-layer sheet of material to form a first component having a central portion and a plurality of sidewalls extending transversely from the central portion;securing a second component having a central portion and a plurality of sidewalls extending transversely from the central portion to the first component to form an interior space therebetween;positioning porous filler material in the interior space;forming a vacuum in the interior space; andsealing the first and second components together to form a vacuum insulated appliance structure. 12. The method of claim 11, wherein: the multi-layer sheet of material is flat prior to heating and forming. 13. The method of claim 11, wherein: the first component comprises a wrapper of a refrigerator cabinet;the second layer component comprises a liner of a refrigerator cabinet that is received inside the wrapper. 14. The method of claim 11, wherein: the second component comprises a metal liner of a refrigerator cabinet. 15. The method of claim 11, wherein: the outer layers comprise HIPS or ABS, PP, PBT or PE. 16. The method of claim 15, wherein: the barrier material comprises PVdC, nylon, or liquid crystal polymer. 17. The method of claim 15, wherein the at least one layer of barrier material comprises first and second barrier layers comprising first and second barrier materials, respectively, wherein the first barrier material is impervious to water vapor, and the second barrier material is impervious to oxygen. 18. The method of claim 17, wherein: the first barrier material comprises at least one of a fluoropolymer, COC, COP, or HDPE. 19. The method of claim 11, including: positioning the multi-layer sheet of material between male and female mold parts; andpressing the male and female mold parts together. 20. The method of claim 19, wherein: the male mold part includes a central surface and four outwardly facing surfaces that extend transversely from the central portion.
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