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:
Sep. 29, 1981
Filed:
Apr. 14, 1980
Applicant:
Inventor:
Peter J Briggs, Cheadle Hulme, GB;
Assignee:
Imperial Chemical Industries Limited, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ; B32B / ; B29D / ;
U.S. Cl.
CPC ...
428247 ; 264 453 ; 428110 ; 428255 ; 428310 ; 428313 ; 521902 ;
Abstract
The laminates have a core of rigid isocyanurate-based foam sandwiched between two facing sheets which are preferably non-combustible. Embedded in the core, substantially throughout its thickness, are multiple layers of a mesh of continuous glass fibre strands which is readily permeable to the foam forming ingredients. Each layer of the mesh is substantially parallel to the facing sheets. The laminates show advantages over laminates reinforced with single filament surface veil mat, single filament expanded mat, single filament random swirl mat and continuous rovings.