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:
Feb. 05, 1991
Filed:
Jul. 18, 1988
Gunter Holzner, Grand-Lancy, CH;
Firmenich S.A., Geneva, CH;
Abstract
Multi-layer laminated sandwich sheet, comprising at least two layers which are superimposed and stuck together by welding or gluing, one layer being constituted by a material impervious to the active volatile agents of a perfuming or deodorizing composition, of an aroma or of an insecticidal or bactericidal substance, and the other layer being composed of a film made from a polymer or a copolymer with a polyolefin base or from a copolymer of polyamide and polyether, which film contains, in dispersed and homogeneous phase, a base constituted by a perfuming or deodorizing composition, an aroma or an insecticidal or bactericidal substance, and packaging utilizing the said sheet.