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. 22, 1981
Filed:
Aug. 14, 1979
Applicant:
Inventor:
Per L Wolff, Birkerod, DK;
Assignee:
Koninklijke Emballage Industrie Van Leer B.V., Amstelveen, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ;
U.S. Cl.
CPC ...
428313 ; 428921 ;
Abstract
Non-inflammable, non-flashing foam products such as foam boards, which comprise a layer of a rigid foam of a furfuryl alcohol-formaldehyde containing resin composition wherein at least one surface of said foam product has, as an integral part of its surface layer, porous glass fibre tissue. In accordance with another feature of the invention the glass fibre tissue surface is covered with a layer of an inorganic material such as a silicate. Methods of making these foam products are also disclosed.