Patent ID: 7441312

Claim:
A sealing slide fastener ( 10 ), comprising: a closing slider ( 8 ); two tapes ( 1 , 2 ) of elastic material having respective edges ( 1 b , 2 b ) facing each other, each of said two tapes carrying a respective set of injection molded teeth ( 3 , 4 ), said edges being pressed against each other by coupling of said sets of teeth caused by passage of said closing slider; each of said two tapes having two outer layers ( 1 e , 2 e ) of thermoplastic material and an inner reinforcing layer ( 7 ) between said two outer layers; and each of said teeth having two halves ( 3 a , 3 b , 4 a , 4 b ) that are each injection molded directly on a respective one of said outer layers without an intervening adhesive layer and that are chemically welded directly to the respective one of said outer layers without an adhesive.