MY158111A - A lid for a container and a process for making same - Google Patents

Abstract

24 T(I 0 7001 Q Z A LID FOR A CONTAINERAND A PROCESS 140 W 04 FOR MAKING SAME ABSTRACT 5 THERE IS DISCLOSED HEREIN A LID 2 FOR A CONTAINER 67, THE LID 2 COMPRISING A FIRST PLASTIC LAYER 15 AND A SECOND PLASTIC LAYER 14 DISPOSED ON TOP OF THE FIRST LAYER, THE FIRST LAYER INCLUDING AT LEAST ONE PORTION COMPRISING AT LEAST ONE COLOURED PIGMENT, THE SECOND LAYER INCLUDING AT LEAST ONE PORTION COMPRISING AT LEAST ONE THERNIOCHROMIC SUBSTANCE WHICH IS CAPABLE OF BECOMING SUBSTANTIALLY TRANSLUCENT UPON REACHING A PREDETERMINED TO TEMPERATURE IN RESPONSE TO HEAT TRANSFER FROM OR TO CONTENTS OF THE CONTAINER SO AS TO REVEAL AT LEAST ONE OF THE PORTIONS COMPRISING THE COLOUXED PIGMENT OF THE FIRST LAYER. THERE IS ALSO DISCLOSED HEREIN A PROCESS FOR INALCING THE SAME. ALSO DISCLOSED AS A LID FOR A CONTAINER, THE LID COMPRISING A LAYER COMPRISING AT LEAST ONE PORTION HAVING AT LEAST ONE THERMOCHXORNIC SUBSTANCE WHICH IS ADAPTED TO CHANGE COLOUR AND/OR BECOME SUBSTANTIALLY 15 TRANSLUCENT UPORF REACHING A PREDETERMINED TEMPERATURE(S) IN RESPONSE TO HEAT TRANSFER FROM OR TO COILTENTS OF THE CONTAINER, THE LAYER,BEING PROVIDED IN AT LEAST ONE PORTION WITH AT LEAST ONE COLOURED PIGMENT, WHICH PORTION IS OBSERVABLE AT SAID PREDETEM-TINCD TEMPERATURE(S) AND NON-OBSERVABLE AT A TEMPERATURE OTHER THAN THE PREDETERMINED TEINPERATURE(S), THE COLOUR OF SAID PIGMENT BEING THE SAME OR SUBSTANTIALLY THE SAME COLOUR 2O AS THAT OF SAID THERMOCHROMIC SUBSTANCE AT A TEMPERATURE OTHER THAN THE PREDETERMINED TEMPERATARE(S) OR WHICH PORTION BECOMES NON-OBSERVABLE AT SAID PREDETERMINED TEMPERATURE(S) AND OBSERVABLE AT A TEMPERATURE OTHER THAN THE PREDETERMINED TEMPERATURE(S), THE COLOUR OF SAID PIGMENT BEING THE SAME OR SUBSTANTIALLY THE SAME COLOUR AS THAT OF SAID THERMOCHROMIC. SUBSTANCE AT THE PREDETERMINED TEMPERATURE(S).