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:
Dec. 28, 1982
Filed:
Jun. 11, 1981
Applicant:
Inventor:
Peter J Briggs, Cheshire, GB;
Assignee:
Imperial Chemical Industries Limited, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ;
U.S. Cl.
CPC ...
4283044 ; 4283184 ; 4283191 ; 428329 ; 428331 ;
Abstract
Laminated foamed plastics articles, especially polyurethane and polyisocyanurate rigid foam panels, are faced with a composite layer of vermiculite lamellae and metal foil, especially aluminum foil. The vermiculite lamellae are preferably size-graded to below 50 microns and form a coating on the metal foil which has a thickness preferably below 50 microns. The laminated articles have good fire resistance properties.