Brekner Michael Joachim Dr, Rohrmann Juergen Dr, Spaleck Walter Dr, Antberg Martin Dr: Process for preparing cycloolefin polymers.. Hoechst, January 16, 1991: EP0407870-A2 (105 worldwide citation)

Polymerisate von polycyclischen Olefinen der Formeln I bis IV mit einer Viskositätszahl grösser 20 cm /g und einer Glastemperatur oberhalb 100 DEG C erhält man ohne Ringöffnung mit einer hohen Polymerisationsgeschwindigkeit bei technisch günstigen Polymerisationstemperaturen mittels eines Katalysato ...

Jung Jae Chang, Bok Cheol Kyu, Baik Ki Ho: Bicycloalkene photoresist copolymers. Hyundai Electronics Industries, July 1, 1998: GB2320718-A (43 worldwide citation)

A photoresist includes a copolymer of one or more bicycloalkene derivatives with maleic anhydride and/or vinylene carbonate, and has a molecular weight of 3000 to 100,000. The bicycloalkene derivative is a 5-norbornene- or bicyclo 2.2.2oct-5-ene-2-carboxylic acid or ester. The photoresist can be use ...

Cynthia Bennett, Michael Joachim Brekner, Jochen Coutandin, Otto Herrmann Schoenherr, Frank Osan: Semi-crystalline cycloolefin copolymer film. Hoechst Aktiengesellschaft, Foley & Lardner, September 3, 1996: US05552504 (43 worldwide citation)

A film including semi-crystalline cycloolefin copolymers which have a content of catalyst residues of <100 ppm and their use as capacitor films, reproduction films, film keyboards and film switches, substrates for liquid crystal displays and packaging films.

Takuji Okamoto, Junichi Matsumoto, Masami Watanabe, Hiroshi Maezawa: Process for producing cyclic olefin based polymers, cyclic olefin copolymers, compositions and molded articles comprising the copolymers. Idemitsu Kosan, Oblon Spivak McClelland Maier & Neustadt P C, May 13, 1997: US05629398 (42 worldwide citation)

A process for effectively producing a cyclic olefin polymer and a cyclic olefin/alpha-olefin copolymer without opening the cyclic olefin, is disclosed. Further, a novel cyclic olefin/alpha-olefin copolymer prepared by the above-mentioned process, compositions and molded articles comprising the novel ...

Stephen M Dershem, Kevin J Forrestal, Puwei Liu: Heterobifunctional monomers and uses therefor. Henkel Corporation, Steven C Bauman, September 20, 2005: US06946523 (38 worldwide citation)

In accordance with the present invention, there are provided novel heterobifunctional monomers and users for the same. Invention compounds have many of the properties required by the microelectronics industry, such as, for example, hydrophobicity, high Tg values, low dielectric constant, ionic purit ...

Michael Riedel, Thomas Weller, Alexandra Jacobs: Process for preparing a cycloolefin copolymer. Ticona, Mitsui Petrochemical, February 9, 1999: US05869586 (34 worldwide citation)

The present invention relates to a process for preparing a cycloolefin copolymer by polymerization of at least one cyclic olefin and at least one acyclic olefin in the presence of a catalyst comprising at least one metallocene compound of the formula I, ##STR1## where L is a .pi.-ligand, L' is a .pi ...

Errol J Olivier: Olefin polymers containing bound antioxidant. DSM Copolymer, Rockey Rifken and Ryther, November 12, 1996: US05574118 (34 worldwide citation)

This invention is addressed to olefin polymers having antioxidant properties which are prepared by Ziegler polymerization of one or more monomers containing ethylenic unsaturation along with a polymerizable antioxidant monomer in the form of a substituted norbornene in which at least one substituent ...

Bruce A Harrington, Gregory G Hlatkey, Jo Ann M Canich, Natalie A Merrill: Method for preparing alpha-olefin/cycloolefin copolymers. Exxon Chemical Patents, C L Bell, W G Muller, June 3, 1997: US05635573 (30 worldwide citation)

Cycloolefin/alpha-olefin copolymers in a molar ratio from 5/95 to 95/5, optionally including long linear alpha-olefin, branched alpha-olefins and/or polyenes as additional comonomers, are prepared using a cyclopentadienyl metallocene catalyst system based on a transition metal compound from Group 4 ...

Kenji Wakatsuru, Takehiko Kawate, Shigemi Shiraki, Toshihiro Sagane, Shuji Minami, Masayuki Okabe, Ryosuke Tomita, Hideaki Yamaguchi: Cycloolefin random copolymer and process for preparing same. Mitsui Petrochemical, Sherman and Shalloway, December 21, 1993: US05272235 (30 worldwide citation)

In accordance with the present invention, there are provided cycloolefin random copolymers composed of ethylene and cycloolefin and containing substantially no polyethylene, and processes for preparing the same. Optical disc substrates prepared from the above-mentioned copolymers are excellent in tr ...

Thomas Weller, Michael Aulbach, Frank Kuber, Gerhard Erker, Christian Psiorz, Bernd Bachmann, Frank Osan: Metallocenes as catalysts in the preparation of cycloolefin copolymers. Targor, Connolly Bove Lodge & Hutz, November 23, 1999: US05990254 (29 worldwide citation)

The present invention relates to a stereorigid metallocene compound containing, as ligands, at least two substituted or unsubstituted cyclopentadienyl groups which are bonded to one another via a monocyclic or polycyclic ring system, where at least one cyclopentadienyl group is fused to the monocycl ...