Shell Oil Comapny

Johan M Beijen

William P Gergen

Edgar J Smutny

Antonius A Broekhuis

Franciscus C Groenland

Jacques G Du Chatinier

Compositions comprising linear alternating polymers of carbon monoxide and at least one ethylenically unsaturated hydrocarbon and certain polar additives containing at least two groups of substantial carbon number show improved processing properties. A method of improving the processing properties of the linear alternating polymer comprises incorporating therein at least one of the polar additives.

Polyketone polymer compositions containing a polar ester or amine

The method of forming thin-walled cupped articles from unpigmented polypropylene sheet by plug-assisted fluid pressure forming of the sheet at a temperature 4.degree. to 15.degree. C. below its melting point is known to produce clear, oriented articles of good impact strength. The low temperature impact strength of these articles can be significantly improved with little or no sacrifice of clarity by making them from sheet produced from a blend of a crystalline propylene polymer with from 1 to 30% of low density polyethylene.

Growing community of inventors

Amsterdam, Netherlands

Johan M Beijen