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High Molecular Weight Polypropylene through Specifically DesigneZirconocene Catalysts

✍ Scribed by Dr. Walter Spaleck; Dr. Martin Antberg; Dr. Jürgen Rohrmann; Dr. Andreas Winter; Dr. Bernd Bachmann; Dr. Paul Kiprof; Dr. Joachim Behm; Prof. Dr. Wolfgang A. Herrmann

Publisher
John Wiley and Sons
Year
1992
Tongue
English
Weight
499 KB
Volume
31
Category
Article
ISSN
0044-8249

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📜 SIMILAR VOLUMES

Solubility of high molecular weight, ste
Solubility of high molecular weight, sterically hindered amines in polypropylene
✍ A. P. Mar'in; V. Borzatta; M. Bonora; L. Greci 📂 Article 📅 2000 🏛 John Wiley and Sons 🌐 English ⚖ 176 KB 👁 2 views

The dissolution of four sterically hindered amines with molecular weights from 1364 to 2758 was studied in polypropylene in the interval, 60 -130°C. The solubility of the additives at 100°C passes through a maximum during time and the maximum solubility increases with increasing additive molecular w

Diffusion of high molecular weight, ster
Diffusion of high molecular weight, sterically hindered amines in polypropylene
✍ A. P. Mar'in; V. Borzatta; M. Bonora; L. Greci 📂 Article 📅 2000 🏛 John Wiley and Sons 🌐 English ⚖ 145 KB 👁 2 views

The diffusion of sterically hindered amines with molecular weight 1364, 1393, 2286, and 2758 was studied in polypropylene between 60 and 130°C. The diffusion coefficient changes with time and plots log D vs 1/T are given as broken lines for additives with molecular weight 2286 and 2758. IR data show

Loss of high molecular weight, stericall
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✍ A. P. Mar'in; V. Borzatta; M. Bonora; L. Greci 📂 Article 📅 2000 🏛 John Wiley and Sons 🌐 English ⚖ 167 KB 👁 1 views

The loss from polypropylene (PP) of sterically hindered amines with molecular weight ranging from 1364 to 2758 in heptane, chloroform, and methanol at room temperature was studied. The additives leak from polymer in heptane and in chloroform and some residual concentration remains in the polymer; th

High modulus/tenacity filaments from ble
High modulus/tenacity filaments from blends of different molecular weights of polypropylene
✍ A. Chatterjee; B. L. Deopura 📂 Article 📅 2005 🏛 John Wiley and Sons 🌐 English ⚖ 106 KB 👁 1 views

## Abstract Polypropylene (PP) filaments are prepared by blending two different molecular weight components of PP. A melt‐spinning process to produce filaments includes mixing of components, extrusion, and two‐stage drawing, followed by a unique Gradient Drawing™ process. Blending results in highly