The present invention relates to a process for the manufacture of a functionalized ethylene and propylene copolymer composition. The invention further relates to such functionalized ethylene and propylene copolymer composition.

The present invention relates to a process for the manufacture of a functionalized ethylene and propylene copolymer composition. The invention further relates to such functionalized ethylene and propylene copolymer composition.

The present invention relates to a propylene polymer composition comprising a long chain branched propylene polymer, wherein said propylene polymer composition has a) a melt flow rate MFR.sub.2 (230° C., 2.16 kg) of 0.8 to 6.0 g/10 min b) a xylene hot insolubles (XHU) fraction in an amount of not more than 0.80 wt %, based on the total weight amount of the propylene polymer composition, c) a melting temperature Tm of at least 160.0° C., d) a F30 melt strength of from 5.0 to less than 30.0 cN, and e) a heat distortion temperature (HDT) of at least 108° C., a process for producing said propylene polymer composition by reactive modification of a propylene polymer in the presence of a peroxide, an article comprising said propylene polymer composition and the use of said propylene polymer composition for producing an article.

The present invention relates to a propylene polymer composition comprising a long chain branched propylene polymer, wherein said propylene polymer composition has a) a melt flow rate MFR.sub.2 (230° C., 2.16 kg) of 0.8 to 6.0 g/10 min b) a xylene hot insolubles (XHU) fraction in an amount of not more than 0.80 wt %, based on the total weight amount of the propylene polymer composition, c) a melting temperature Tm of at least 160.0° C., d) a F30 melt strength of from 5.0 to less than 30.0 cN, and e) a heat distortion temperature (HDT) of at least 108° C., a process for producing said propylene polymer composition by reactive modification of a propylene polymer in the presence of a peroxide, an article comprising said propylene polymer composition and the use of said propylene polymer composition for producing an article.

The present invention discloses a Ziegler-Natta catalyst system for olefin polymerization, comprising at least one compound represented by formula (I) as (i) an internal electron donor, (ii) an external electron donor, or (iii) the both, wherein M.sub.1, M.sub.2, M.sub.3, M.sub.4, M.sub.5, M.sub.6, M.sub.1′, M.sub.2′, M.sub.3′, M.sub.4′, M.sub.5′ and M.sub.6′ are each independently selected from the group consisting of hydrogen, hydroxy, amino, aldehyde group, carboxy, acyl, halogen atoms, —R.sub.1 and —OR.sub.2, wherein R.sub.1 and R.sub.2 are each independently a C.sub.1-C.sub.10 hydrocarbyl, which is unsubstituted or substituted by a substituent selected from the group consisting of hydroxy, amino, aldehyde group, carboxy, acyl, halogen atoms, C.sub.1-C.sub.10 alkoxy and heteroatoms; and wherein, when among M.sub.1-M.sub.6 and M.sub.1′-M.sub.6′, any two adjacent groups on the same phenyl ring are each independently selected from the group consisting of R.sub.1 and —OR.sub.2, the two adjacent groups may optionally be linked to form a ring, with a proviso that M.sub.1, M.sub.2, M.sub.3, M.sub.4, M.sub.5, M.sub.6, M.sub.1′, M.sub.2′, M.sub.3′, M.sub.4′, M.sub.5′ and M.sub.6′ are not simultaneously hydrogen. ##STR00001##

The present invention discloses a Ziegler-Natta catalyst system for olefin polymerization, comprising at least one compound represented by formula (I) as (i) an internal electron donor, (ii) an external electron donor, or (iii) the both, wherein M.sub.1, M.sub.2, M.sub.3, M.sub.4, M.sub.5, M.sub.6, M.sub.1′, M.sub.2′, M.sub.3′, M.sub.4′, M.sub.5′ and M.sub.6′ are each independently selected from the group consisting of hydrogen, hydroxy, amino, aldehyde group, carboxy, acyl, halogen atoms, —R.sub.1 and —OR.sub.2, wherein R.sub.1 and R.sub.2 are each independently a C.sub.1-C.sub.10 hydrocarbyl, which is unsubstituted or substituted by a substituent selected from the group consisting of hydroxy, amino, aldehyde group, carboxy, acyl, halogen atoms, C.sub.1-C.sub.10 alkoxy and heteroatoms; and wherein, when among M.sub.1-M.sub.6 and M.sub.1′-M.sub.6′, any two adjacent groups on the same phenyl ring are each independently selected from the group consisting of R.sub.1 and —OR.sub.2, the two adjacent groups may optionally be linked to form a ring, with a proviso that M.sub.1, M.sub.2, M.sub.3, M.sub.4, M.sub.5, M.sub.6, M.sub.1′, M.sub.2′, M.sub.3′, M.sub.4′, M.sub.5′ and M.sub.6′ are not simultaneously hydrogen. ##STR00001##

The present invention relates to an amorphous polyolefinic ionomer and a process for the preparation of an amorphous polyolefinic ionomer.

The present invention relates to an amorphous polyolefinic ionomer and a process for the preparation of an amorphous polyolefinic ionomer.

A polyethylene homopolymer composition comprises: a first ethylene homopolymer having a density, d.sup.1 of from 0.943 to 0.975 g/cm.sup.3, a melt index, I.sub.2.sup.1 of from 0.01 to 10 g/10 min, and a molecular weight distribution, Mw/Mn of less than 3.0; and a second ethylene homopolymer having a density, d.sup.2 of from 0.950 to 0.985 g/cm.sup.3, a melt index, I.sub.2.sup.2 of at least 500 g/10 min, and a molecular weight distribution, M.sub.w/M.sub.n of less than 3.0; wherein the ratio of the melt index, I.sub.2.sup.2 of the second ethylene homopolymer to the melt index, I.sub.2.sup.1 of the first ethylene homopolymer is at least 50. The polyethylene homopolymer compositions which may be nucleated have a weight average molecular weight, M.sub.w of ≤75,000, a high load melt index, I.sub.21 of at least 200 g/10 min, a molecular weight distribution, M.sub.w/M.sub.n of from 4.0 to 12.0 and may be usefully employed in molding applications, such as, for example, in compression molded closures.

A polyethylene homopolymer composition comprises: a first ethylene homopolymer having a density, d.sup.1 of from 0.943 to 0.975 g/cm.sup.3, a melt index, I.sub.2.sup.1 of from 0.01 to 10 g/10 min, and a molecular weight distribution, Mw/Mn of less than 3.0; and a second ethylene homopolymer having a density, d.sup.2 of from 0.950 to 0.985 g/cm.sup.3, a melt index, I.sub.2.sup.2 of at least 500 g/10 min, and a molecular weight distribution, M.sub.w/M.sub.n of less than 3.0; wherein the ratio of the melt index, I.sub.2.sup.2 of the second ethylene homopolymer to the melt index, I.sub.2.sup.1 of the first ethylene homopolymer is at least 50. The polyethylene homopolymer compositions which may be nucleated have a weight average molecular weight, M.sub.w of ≤75,000, a high load melt index, I.sub.21 of at least 200 g/10 min, a molecular weight distribution, M.sub.w/M.sub.n of from 4.0 to 12.0 and may be usefully employed in molding applications, such as, for example, in compression molded closures.