Ineos Europe Ag

Imen Ghouila

Jean-Louis Chamayou

Claudine Viviane Lalanne-Magne

Andrew David Bell

Serge Desportes

Eric Osmont

Claudine Lalanne-Magne

Novel copolymers having a density (D) in the range 0.895-0.910 g/cm, a melt index MI(2.16 kg, 190&#xb0; C.) in the range of 0.01-6 g/10 min, a Compositional Distribution Branch Index (CDBI) in the range 55-85%, and a sealing initiation temperature (SIT) and density (D) satisfying the relationship SIT&#x2264;(A&#xd7;D)&#x2212;B wherein A is 800&#xb0; C.&#xd7;cm/g and B is 650&#xb0; C., wherein the SIT (&#xb0; C.) is determined on a 70 &#x3bc;m film at 0.5N/15 mm and D Is in units of g/cmare disclosed. The copolymers may be suitably prepared by use of metallocene catalyst systems and may be used in film applications, in particular as sealing layers for packaging applications.

Copolymers and films thereof

Method for controlling a process for the production of a polymer by polymerization of a monomer and a comonomer. The process includes maintaining a substantially constant effective flow ratio (EFR), the effective flow ratio being defined as EFR=(Q&#x2212;L)/(Q&#x2212;L), Qand Qbeing, respectively, flow rates of comonomer and monomer to the reactor, Land Lbeing, respectively, losses of comonomer and monomer.

Method for production of polymer

Growing community of inventors

Martigues, France

Imen Ghouila