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US 5,211,792 AGranted
Method of laminating multiple layers
OwnerRichard Carterinventor
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Abstract
A preheatable scrim and method of use for bonding together multiple layers of materials to form a laminate. The scrim includes a carrier layer which is impregnated with an adhesive having a melting point such that it can set and hold a bond. The scrim is preheated to its activation temperature and sandwiched between the materials layers. The sandwich is pressed together to bond the layers.
Claims14
A method of bonding together two layers of material to produce a contoured laminate, said method comprising:
- providing said two layers at a first temperature;
- providing a flexible carrier;
- depositing a thermoplastic adhesive on said carrier to form an adhesive/carrier composite, said adhesive characterized in that it has a sharp melting point such that it can set and hold a bond;
- preheating the composite to a second temperature substantially higher than the first temperature, said second temperature being the activation temperature of the adhesive, while maintaining said two layers at said first temperature;
- placing the preheated composite at said second temperature between said two layers to form a sandwich assembly;
- pressing the sandwich assembly together to achieve intimate contact between the layers of material and the composite such that said layers act as a heat sink to rapidly cool said composite below said second temperature;
- maintaining said intimate contact for a time period sufficient to achieve bonding;
- and
- cold molding the sandwich assembly to form a contoured laminate.
6 more elements
Dependencies are inferred from the claim text.