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:
Jun. 14, 1988
Filed:
Jan. 23, 1987
Applicant:
Inventors:
Paul Halg, Winterthur, CH;
Harald Severus, Schaffhausen, CH;
Assignee:
Swiss Aluminum Ltd. - Research Laboratores, Neuhausen, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ; B32B / ; B32B / ;
U.S. Cl.
CPC ...
4283171 ; 156310 ; 156320 ; 156321 ; 156322 ; 4283179 ; 4283188 ; 4283191 ;
Abstract
Composite panels with plastic core of polyvinylchloride and metal outer layers bonded to the core by means of adhesive layers, including those where flame retardant additives are incorporated in the plastic core, do not exhibit completely satisfactory properties for certain applications, in particular with respect to behavior under fire conditions viz., the creation of smoke. Composite panels having a plastic core of post-chlorinated polyvinylchloride or a mixture of the same with polyvinylchloride avoid these disadvantages.