[EN] HIGH MELT STRENGTH POLYMERS AND METHOD OF MAKING SAME<br/>[FR] POLYMERES PRESENTANT UNE RESISTANCE A L'ETAT DE FUSION ELEVEE ET PROCEDE DE PRODUCTION DE TELS POLYMERES
申请人:DOW CHEMICAL CO
公开号:WO2002074816A2
公开(公告)日:2002-09-26
A polymer composition comprises: (a) a high molecular weight, branched component; and (b) a low molecular weight, branched component. Some polymer compositions are characterized by a substantial absent of amyl or methyl branches and a melt strength (MS) that satisfies the following relationship, formula (I), where x is greater than or equal to about 12.5 and y is greater than or equal to about 3. Some polymers are characterized by a melt strength (MS) that satisfies the following relationship, formula (II), where x is greater than or equal to about 3 and y is greater than or equal to about 4.5 and a molecular weight distribution of greater than 3. A process for making polymers is also disclosed.