Hinges for highly inorganically filled composite materials

B - Operations – Transporting – 32 – B

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B32B 1/04 (2006.01) B27N 3/00 (2006.01) B28B 1/00 (2006.01) B28B 1/52 (2006.01) B28B 3/12 (2006.01) B28B 3/20 (2006.01) B28B 11/00 (2006.01) B28B 23/00 (2006.01) B29C 43/00 (2006.01) B29C 43/02 (2006.01) B29C 43/06 (2006.01) B29C 43/24 (2006.01) B29C 43/34 (2006.01) B29C 43/46 (2006.01) B29C 44/04 (2006.01) B29C 49/00 (2006.01) B29C 51/00 (2006.01) B29C 55/18 (2006.01) B29C 67/24 (2006.01) B29C 71/00 (2006.01) B32B 3/04 (2006.01) B32B 5/02 (2006.01) B32B 5/04 (2006.01) B32B 5/18 (2006.01) B32B 9/00 (2006.01

Patent

CA 2179272

A hinge for use in inorganically filled composite materials is provided. The hinge has an inorganically filled structural matrix comprising a water-dispersable organic polymer binder an aggregate material, and a fibrous material. The hinge allows inorganically filled materials to be bent along a line without breakage of the material. The hinge is preferably formed by scoring a formed sheet of inorganically filled material (50). The hinge is particularly useful in containers that require bending of various container parts, such as in food containers and boxes made from inorganically filled materials.

On fournit une charnière destinée à des matériaux composites contenant une charge minérale. La charnière a une matrice structurelle à charge minérale, contenant un liant organique polymère qui peut se disperser dans l'eau, une charge minérale et un matériau fibreux. La charnière permet de plier les matériaux à charge minérale le long d'une ligne sans que le matériau ne casse. La charnière est formée de préférence en entaillant une feuille de matériau (50) contenant une charge minérale. La charnière est particulièrement utile pour des récipients où il faut plier différentes parties, comme par exemple pour les récipients et les boîtes destinés à des aliments, faits en des matériaux contenant une charge minérale.

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