PROCESS FOR THE SYNTHESIS OF DISENTANGLED UHMW-PE USING A CR OR TI CATALYST

DARIO ROMANO, (Inventor), SARA RONCA, (Inventor), JOHAN BOS, (Inventor), SANJAY RASTOGI, (Inventor)

Research output: Patent

Abstract

The invention pertains to a process for the manufacture of disentangled ultra-high molecular weight polyethylene in the presence of a co-catalyst comprising trialkylaluminum and a catalyst which is a substituted monocyclopentadienyl, monoindenyl, monofluorenyl or heterocyclopentadienyl complex of chromium or titanium in which at least one of the substituents on the cyclopentadienyl ring carries a neutral donor function which is bonded rigidly, not exclusively via sp3-hybridized carbon or silicon atoms, characterized in that the process comprises the following steps in the given order: i) a solvent and a trialkylaluminum-scavenger and optionally co-catalyst are added to a reaction vessel, ii) ethylene is added to the reaction vessel, iii) a mixture of the catalyst and co-catalyst is added to the reaction vessel. UHMW-PE obtainable by this process is also claimed, as are fibers, films tapes and moldings comprising this material, and their use in penetration-resistant articles, gloves, biaxial films, cables, slings, ropes, nets, pipes and prostheses.

Original languageEnglish
Patent numberWO2014060252
IPCC08F 4/ 69 A I
Priority date16/10/12
Publication statusPublished - 24 Apr 2014

Cite this

ROMANO, DARIO., RONCA, SARA., BOS, JOHAN., & RASTOGI, SANJAY. (2014). IPC No. C08F 4/ 69 A I. PROCESS FOR THE SYNTHESIS OF DISENTANGLED UHMW-PE USING A CR OR TI CATALYST. (Patent No. WO2014060252).
ROMANO, DARIO (Inventor) ; RONCA, SARA (Inventor) ; BOS, JOHAN (Inventor) ; RASTOGI, SANJAY (Inventor). / PROCESS FOR THE SYNTHESIS OF DISENTANGLED UHMW-PE USING A CR OR TI CATALYST. IPC No.: C08F 4/ 69 A I. Patent No.: WO2014060252.
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abstract = "The invention pertains to a process for the manufacture of disentangled ultra-high molecular weight polyethylene in the presence of a co-catalyst comprising trialkylaluminum and a catalyst which is a substituted monocyclopentadienyl, monoindenyl, monofluorenyl or heterocyclopentadienyl complex of chromium or titanium in which at least one of the substituents on the cyclopentadienyl ring carries a neutral donor function which is bonded rigidly, not exclusively via sp3-hybridized carbon or silicon atoms, characterized in that the process comprises the following steps in the given order: i) a solvent and a trialkylaluminum-scavenger and optionally co-catalyst are added to a reaction vessel, ii) ethylene is added to the reaction vessel, iii) a mixture of the catalyst and co-catalyst is added to the reaction vessel. UHMW-PE obtainable by this process is also claimed, as are fibers, films tapes and moldings comprising this material, and their use in penetration-resistant articles, gloves, biaxial films, cables, slings, ropes, nets, pipes and prostheses.",
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ROMANO, DARIO, RONCA, SARA, BOS, JOHAN & RASTOGI, SANJAY 2014, PROCESS FOR THE SYNTHESIS OF DISENTANGLED UHMW-PE USING A CR OR TI CATALYST, Patent No. WO2014060252, IPC No. C08F 4/ 69 A I.

PROCESS FOR THE SYNTHESIS OF DISENTANGLED UHMW-PE USING A CR OR TI CATALYST. / ROMANO, DARIO (Inventor); RONCA, SARA (Inventor); BOS, JOHAN (Inventor); RASTOGI, SANJAY (Inventor).

IPC No.: C08F 4/ 69 A I. Patent No.: WO2014060252.

Research output: Patent

TY - PAT

T1 - PROCESS FOR THE SYNTHESIS OF DISENTANGLED UHMW-PE USING A CR OR TI CATALYST

AU - ROMANO,, DARIO

AU - RONCA,, SARA

AU - BOS,, JOHAN

AU - RASTOGI,, SANJAY

PY - 2014/4/24

Y1 - 2014/4/24

N2 - The invention pertains to a process for the manufacture of disentangled ultra-high molecular weight polyethylene in the presence of a co-catalyst comprising trialkylaluminum and a catalyst which is a substituted monocyclopentadienyl, monoindenyl, monofluorenyl or heterocyclopentadienyl complex of chromium or titanium in which at least one of the substituents on the cyclopentadienyl ring carries a neutral donor function which is bonded rigidly, not exclusively via sp3-hybridized carbon or silicon atoms, characterized in that the process comprises the following steps in the given order: i) a solvent and a trialkylaluminum-scavenger and optionally co-catalyst are added to a reaction vessel, ii) ethylene is added to the reaction vessel, iii) a mixture of the catalyst and co-catalyst is added to the reaction vessel. UHMW-PE obtainable by this process is also claimed, as are fibers, films tapes and moldings comprising this material, and their use in penetration-resistant articles, gloves, biaxial films, cables, slings, ropes, nets, pipes and prostheses.

AB - The invention pertains to a process for the manufacture of disentangled ultra-high molecular weight polyethylene in the presence of a co-catalyst comprising trialkylaluminum and a catalyst which is a substituted monocyclopentadienyl, monoindenyl, monofluorenyl or heterocyclopentadienyl complex of chromium or titanium in which at least one of the substituents on the cyclopentadienyl ring carries a neutral donor function which is bonded rigidly, not exclusively via sp3-hybridized carbon or silicon atoms, characterized in that the process comprises the following steps in the given order: i) a solvent and a trialkylaluminum-scavenger and optionally co-catalyst are added to a reaction vessel, ii) ethylene is added to the reaction vessel, iii) a mixture of the catalyst and co-catalyst is added to the reaction vessel. UHMW-PE obtainable by this process is also claimed, as are fibers, films tapes and moldings comprising this material, and their use in penetration-resistant articles, gloves, biaxial films, cables, slings, ropes, nets, pipes and prostheses.

M3 - Patent

M1 - WO2014060252

ER -