Patent ID: 6887416

Claim:
A method for compression moulding a container closure cap, which has a first part ( 16 , 17 ) and a second part ( 18 ), which are joined together by at least one thinner section ( 19 ), characterised by the following steps: Preparing a mould with a female mould part ( 11 ; 111 ) and a male mould part ( 12 ), which are moveable relative to one another, in order to enclose there between a mould cavity, which has a first mould part for forming the first part ( 16 , 17 ) of the closure cap, a second mould part for forming the second part ( 18 ) of the closure cap and a intermediate cavity part for forming the thinner section ( 19 ), Feeding a portion of plastics material into the female mould part ( 11 ; 111 ), Moving the female mould part ( 11 ; 111 ) and the male mould part ( 12 ) relative to one another to close the mould cavity, Moving an additional mould part ( 14 ; 114 ) relative to the mould cavity in such a way that the volume of the mould cavity is reduced and a part of the portion of plastics material is pressed from the first cavity part through the intermediate cavity part into the second cavity part, in order to form the thinner section ( 19 ) and the second part ( 18 ) of the closure cap.