The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 13, 1993
Filed:
Apr. 04, 1990
Applicant:
Inventors:
Jan Brands, Terneuzen, NL;
Steven B Swartzmiller, Midland, MI (US);
Henri J Grunbauer, Oostburg, NL;
Kees-Jeen van Duin, Terneuzen, NL;
Assignee:
The Dow Chemical Company, Midland, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A47B / ; B32B / ; B32B / ; B65D / ;
U.S. Cl.
CPC ...
428483 ; 220444 ; 220467 ; 220902 ; 312400 ; 312236 ; 4283144 ;
Abstract
This invention relates to the use of a barrier film consisting essentially of thermoplastic homo- or copolymer polyester resin to protect a styrenic resin sheet which constitutes the inner liner wall of an insulative cabinet wall of, for example, a refrigeration appliance unit from attack by the halogen-containing blowing agents present in the insulative polyurethane foam found within the cabinet wall.