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 fibrous composite material comprising fibres, especially glass fibres, and vermiculite lamellae. The vermiculite lamellae are preferably size-graded to eliminate larger lamellae. Preformed flexible layers of the fibrous composite material may be used to face rigid foam board in a continuous lamination process. The articles have good fire resistance properties.