Cyclic olefin (co-)polymer provides a high-temperature alternative to acrylic. Its refractive index and transmittance are similar but the heat distortion temperature is about 30°C higher than for …

An overhead distillate including the linear C5 olefins and a bottoms product including cyclic C5 olefins are recovered from the catalytic distillation reactor system. Other aspects of the...

In this work, we have analyzed the chemical structure of the currently commercialized cyclic olefin copolymers by 13C NMR, and investigated their glass-transition temperatures and surface …

Cyclic olefin copolymer (COC) is an amorphous polymer made by several polymer manufacturers. COC is a relatively new class of polymers as compared to commodities such as polypropylene …

Cyclic olefin co-polymers are prepared by copolymerization of cyclic and linear olefins. By varying the structure, they can be tailored for specific applications. Generally, they are characterized …

Olefin, compound made up of hydrogen and carbon that contains one or more pairs of carbon atoms linked by a double bond. Olefins are important commercial petrochemicals and are …

Producing C5 olefins from steam cracker C5 feeds may include reacting a mixed hydrocarbon stream comprising cyclopentadiene, C5 olefins, and C6+ hydrocarbons in a dimerization …

Apr 13, 2004 · This report discusses the development and current status of cyclo-olefin polymer and its precision molding business, including optical film business, realized by the ZEON’s …

May 26, 2023 · Polyolefins are usually made from olefins by tethering one alkene unit to the next, trading in a pi bond within a monomer for a single bond between two repeat units. However, …

Jan 31, 2005 · In this work, we have analyzed the chemical structure of the currently commercialized cyclic olefin copolymers by C-13 NMR, and investigated their glass-transition …