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Patent

Process for the preparation of substituted norbornene derivatives

Wolfgang Schneider
TLDR
In this article, a mono or dialkyl substituted norbornenes or cyclic norbornene derivatives are prepared by condensing an appropriate olefin or an ethylenically unsaturated alicyclic compound with dicyclopentadiene or cyclopentadene at an elevated temperature and pressure in the presence of a chlorinated hydrocarbon solvent.
Abstract: 
Mono or dialkyl substituted norbornenes or cyclic norbornene derivatives are prepared by condensing an appropriate olefin or an ethylenically unsaturated alicyclic compound with dicyclopentadiene or cyclopentadiene at an elevated temperature and pressure in the presence of a chlorinated hydrocarbon solvent.

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Patent

Method for preparing cycloolefin copolymers with improved heat stability

Parley C. Lane, +3 more
TL;DR: In this paper, a method for increasing the molecular weight of cycloolefin monomers is provided by this invention, which can be incorporated into ring-opening polymerization methods.
Patent

Liquid dicyclopentadiene feedstock for bulk polymerization

Parley C. Lane, +3 more
TL;DR: In this article, the authors provided liquid dicyclopentadiene feedstocks for bulk polymerization by the addition of reactive norbornene function containing cycloolefin monomers to solid, high purity dicyCLopentadene compositions.
Patent

Tetracyclododecene compositions and process for producing the same

Masaki Hashizume, +5 more
TL;DR: In this article, a tetracyclododecene composition with a regulated cyclopentadiene trimer content is presented, whereby addition polymerization with the aid of a Ziegler catalyst can be carried out while preventing gelation caused by a crosslinking reaction.
Patent

Method for enhancing the polymerization activity of crude cycloolefin monomers for bulk polymerization

James Thomas Ware, +1 more
Abstract: A process for enhancing the polymerization activity of mixtures of one or more cycloolefin monomers is provided by treatment with heat. This process can be easily incorporated into ring-opening, bulk polymerization methods and methods which form high molecular weight monomers. Enhancing the polymerization activity of crude mixtures of cycloolefin monomers by this process permits polymers having higher glass transition temperatures and higher heat distortion temperatures to be produced with greater economy.