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:
Mar. 11, 2003
Filed:
Jan. 18, 2000
Yrjö Aho, Rauha, FI;
Tomi Kimpimäki, Turku, FI;
Kari Nurmi, Raisio, FI;
Tapani Penttinen, Huutjärvi, FI;
Kimmo Santamäki, Turku, FI;
Kari Yrjölä, Imatra, FI;
Other;
Abstract
The invention relates to coated board, a process for its manufacture, and containers and packaging formed therefrom. The board comprises at least one polymer-based coat preventing the transmission of liquids and gases, which coat is according to the invention made from a polymer dispersion to which talc particles are added so that talc will constitute 30-80% of the dry weight of the dried coat. The coating is applied onto the board during its manufacture as on-line coating. The board may be, for example, a multi-layer board ( ) which has a middle layer ( ) containing CTMP or other similar mechanical pulp, on its both sides outer layers ( ) formed from sulfate pulp, against these on both sides of the board ( ) talc-containing polymeric barrier layers ( ), and on one side of the board a heat sealing layer ( ) introduced onto the barrier layer ( ).