Heat insulating box

Details Heat insulating box Heat insulating box

1997-07-07

1999-11-16

Clardy, S. Mark

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

428 357, 428 365, 428421, 4284242, 4284258, B29D 2200

Patent

active

059853930

ABSTRACT:
A heat insulating box, such as a refrigerator box, comprises a heat insulator and a box member that is in contact with the heat insulator. The heat insulator is formed of a urethane foam using either HCFC-123 (CHCl.sub.2 CF.sub.3) or HCFC-141b (CH.sub.3 CCl.sub.2 F) or both as a forming agent, and the box member is formed of a styrene/acrylonitrile/butadiene terpolymer, a styrene/ethylene-.alpha.-olefinic rubbery copolymer/acrylonitrile terpolymer (AES resin), a styrene/alkyl acrylate ester containing rubbery copolymer/acrylonitrile terpolymer (AAS resin), or a mixture of the AES resin and the AAS resin.

REFERENCES:
patent: 5229457 (1993-07-01), Kamoshita et al.
patent: 5248546 (1993-09-01), Greenlee
patent: 5707700 (1998-01-01), Akahoshi et al.

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