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Laminated materials and laminated articles
   
Document Number
US Patent 4960648
Issued Date
October 2, 1990
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Abstract
A laminated material is prepared in which a resin composition layer (A) containing a thermoplastic resin and an inorganic filler in a scaly or non-scaly form in an amount from 20% to 80% by weight of the total weight of the thermoplastic resin and the filler interposes a resin composition layer (B) containing a thermoplastic resin and an inorganic filler in an amount from 30% to 70% by weight of the weight of the inorganic filler contained in the resin composition layer (A), the filler being in a scally form when the filler in the layer (A) is in a scaly form or being in a non-scaly form when the filler in the layer (A) is in a non-scaly form with a thermoplastic resin layer. For the laminated material in which the scaly inorganic filler is contained in the layer (A), the layer (B) containing the thermoplastic resin and the non-scaly inorganic filler in the amount of 20% to 80% by weight of the total weight of the thermoplastic resin and the non-scaly filler is interposed between the layer (A) containing the thermoplastic resin and the scaly inorganic filler in the amount of 20% to 80% by weight of the total weight of the thermoplastic resin and the scaly inorganic filler and the thermoplastic resin (C).
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Number of Claims:
9
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Published
October 2, 1990
Application Number
07/336,281
Filed
April 12, 1989
US Classification
428/476.3   428/474.7 428/475.2 428/483 428/500 428/516 428/517 428/518 428/688
Int'l Classification
B32B   27/20   (20060101)  
Examiner
Priority Data
Apr 14, 1988 [JP] 63-92562 Apr 14, 1988 [JP] 63-92563
USPTO Field of Search
428/500   428/518   428/517   428/515   428/483   428/688   428/516   428/474.7   428/475.2   156/244.1  
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