Abstract: A seal layer for use in heat sealed containers, especially retortable polymer containers. A semirigid or rigid packaging container with a multilayer laminate heat sealed to a tray flange, the laminate having a barrier layer and the lidding being easily opened by cohesive failure of a layer containing as elastomer. The elastomer is preferably PIB in a heat seal film layer on a polypropylene tray.

Abstract: A method for the production of a catalyst component for use in the polymerization of an olefin, which method comprises causing a magnesium-containing solid obtained by contact of (A) magnesium metal, (B) a halogenated hydrocarbon represented by the general formula, RX [wherein R stands for an alkyl, aryl, or cycloalkyl group having 1 to 20 carbon atoms and X stands for a halogen atom], and (C) a compound of the general formula, X.sub.n.sup.1 M(OR.sup.1).sub.m-n [wherein X.sup.1 stands for a hydrogen atom, a halogen atom, or a hydrocarbon group having 1 to 20 carbon atoms, M stands for a boron, carbon, aluminum, silicon, or phosphorus atom, R.sup.1 stands for a hydrocarbon group having 1 to 20 carbon atoms, and m stands for the valency of said atom M, providing that m>n.gtoreq.0 is satisfied], to contact (d) a halogen-containing alcohol and then contact (E) an electron donor type compound and (F) a titanium compound.

Abstract: A modified polypropylene having a substantially isotactic homopolypropylene and a propylene/olefin random copolymer, the modified polypropylene including up to about 50 chain disruptors per 1000 propylene repeat units. The chain disruptors are racemic polypropylene diads and olefin, the olefin being incorporated into the high end of the molecular weight distribution of the modified polypropylene.

Abstract: A mixture of normally liquid organic compounds, particularly a light cycle oil obtained by the catalytic cracking of petroleum oils, is separated by contacting the mixture with an essentially anhydrous organic sulfoxide, particularly dimethylsulfoxide, to dissolve an organic extract in said sulfoxide and form an extract phase, comprising sulfoxide and the organic extract, and a raffinate phase, comprising the organic raffinate; diluting the extract phase with about 4.0 to 10.0 wt.