| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a production method for a seal material having sufficient bonding force without deformation of the trim portion of the seal material molded by extrusion, especially for the cross-sectional shape, in the method with the seal material is produced by integrally bonding a seal member of a foam rubber at the same time of extrusion molding of a trim member by using a thermoplastic elastomer. <P>SOLUTION: A seal member S<SB>0</SB>already vulcanized is continuously fed to the trim member T extruded continuously from an extrusion molding die D<SB>2</SB>in the state of melting by heating. Both of the members S<SB>0</SB>and T are bonded by a press force F<SB>1</SB>give between S<SB>0</SB>and T during the time of keeping the temperature at which the trim member is bondable with the seal member S<SB>0</SB>. At that time, in the extrusion die D<SB>2</SB>, a portion of the trim member T under extrusion molding is exposed opposedly toward an expected bonding portion 11 of the seal member S<SB>0</SB>. At the same time, under the state of holding the cross section shape influenced by the effect of at least the press force F<SB>1</SB>of the trim member at the molding surface of the extrusion die D<SB>2</SB>, the bonding and integration is continuously provided. <P>COPYRIGHT: (C)2003,JPO |
