Bp Chemicals Limited

Bp Chimie S.a.

Bp Chimie

Alain Senez

Jean P Thiersault

Daniel Claude Durand

Jean L Vidal

Jean C Roustant

Jean-Paul Thiersault

A polymer composition comprising (a) 99 to 75 weight percent of LLDPE and (b) 1 to 25 weight percent of a copolymer of propylene (CP) with 7 to 40 weight % o one or more C.sub.4 to C.sub.12 alpha-olefins and 0 to 10 weight % of ethylene. The propylene copolymer (CP) has a fusion enthalpy not more than 75 J/g. The composition is readily converted into uniform thickness film by extrusion blowing, and exhibits good hot tack strength during heat-sealing operations.

Polymer compositions based on linear low density polyethylene and

The invention concerns polyethylene compositions particularly adapted for the manufacture of film and hollow bodies by blow-moulding, characterized in that they contain

Polyethylene composition for extrusion, particularly for blow moulding

The invention concerns polypropylene compositions with improved impact strength adapted for conversion to finished articles by extrusion drawing, extrusion blow-molding or thermoforming characterized in that they contain:

Propylene compositions with improved impact strength

The invention concerns polypropylene compositions with high impact strength adapted to the manufacture of car components such as bumpers or dashboards, characterized in that they contain:

Polypropylene compositions with high impact strength

The invention relates to a process of thermomechanical treatment in the molten state, in the presence of organic peroxides, of co-polymers with a density less than 0.935, obtained by co-polymerization under a pressure of less than 4 MP.sub.a of ethylene and a higher alpha-olefin. The co-polymers thus treated may advantageously be used for the manufacture of finished objects such as films according to the current techniques of conversion of 'high pressure' type polyethylene.

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Callas-Cabries, France

Alain Senez