Hoechst Aktiengesellschaft

Ticona Gmbh

Targor Gmbh

Other

Mitsui Petrochemical Industries, Ltd.

Mitsui Petrochemical Ind. Ltd.

Mitsui Petrochemical Ltd.

Frank Osan

Michael-Joachim Brekner

Thomas Weller

Jurgen Rohrmann

Wilfried Hatke

Frank Kuber

Michael Aulbach

Freddy Helmer-Metzmann

Helmut Ritter

Arnold Schneller

Bernd Bachmann

Roland Nolte

Konstantin Ledjeff

Ralf Thorwirth

Herbert Peiffer

Martin Antberg

Cynthia Bennett

Thomas Dries

Gerhard Erker

Otto Herrmann-Schoenherr

Christian Psiorz

Ursula Murschall

Gunter Schloegl

Michael Ahlers

Michael Schreck

Toru Nakamura

Horst-Tore Land

Otto Herrmann-Schonherr

Hellmuth Deckers

Satoshi Arai

Andreas Winter

Willi Kreuder

Andreas Schleicher

Hans-Friedrich Herrmann

Jochen Coutandin

Gunter Schlogl

Frank K Uber

Junichi Fukuzawa

Klaus Berger

Toshimi Nishioka

Takuya Hoga

Dieter Ruchatz

Vincent J Sullivan

Masayuki Arai

Thomas Wehrmeister

Klaus Alberti

J Urgen Rohrmann

Oliver Stark

Jorg Eysmondt

Otto Herrmann-Sch&ouml;nherr

A toner for development of an electrostatically charged image, said toner comprising a binder resin, a colorant, a function imparting agent, and a charge control agent, wherein said binder resin at least contains a polyolefin resin having a cyclic structure, said polyolefin resin is composed of a resin or resin fraction having a number average molecular weight (Mn), as measured by GPC, of less than 7,500 and a resin or resin fraction having said number average molecular weight of 7,500 or more, and in said polyolefin resin having a cyclic structure, a resin or resin fraction having an intrinsic viscosity (i.v.) of 0.25 dl/g or more, and a number average molecular weight (Mn) of 7,500 or more and a weight average molecular weight (Mw) of 15,000 or more, as measured by the GPC method, is contained in a proportion of less than 50% by weight based on the entire binder resin.

Electrostatically charged image developing toner containing a polyolefin resin having a cyclic structure

The present invention relates to a process for producing a bimodal or multimodal mixture of amorphous polyolefins having a different molar mass, in which at least one amorphous polyolefin having a high molar mass is brought into contact and mixed with at least one amorphous polyolefin having a low molar mass in solution and the solvent is subsequently removed.

Method of producing amorphous polyolefins with a wide mole weight distribution

Polymer alloy comprising a) one or more cycloolefin copolymers and b) one or more types of core/shell particles.

Blends of cycloolefin and core/shell polymers

The present invention relates to a fiber which comprises at least one partly crystalline cycloolefin copolymer which can be prepared by polymerization of a symmetrical polycyclic olefin, an acyclic olefin and, if desired, a monocyclic olefin in the presence of a catalyst system comprising an aluminoxane and a metallocene compound of the formula

Fibers made of cycloolefin copolymers

Thermoplastic cycloolefin copolymers (COCs) having high tear strength and low optical attenuation, a process for their preparation, and their use as optical waveguides (optical fibers).

Cycloolefin copolymers having high tear strength and low optical attenuation

In order to produce a polymer electrolyte membrane from sulfonated, aromatic polyether ketone, an aromatic polyether ketone of the formula (I)

Polymer electrolyte membrane and process for the production thereof

Chemically homogeneous cycloolefin copolymers of polycyclic olefins, such as, for example, norbornene or tetracyclododecene, with cycloolefins and/or acyclic olefins are obtained without ring opening and in a high space-time yield if a catalyst system is used which comprises an aluminoxane and a stereorigid metallocene compound of an element from groups IVb to VIb, of the formula

Metallocene and catalyst used for the preparation of chemically homogeneous cycloolefin copolymers

An oriented film composed of thermoplastic polymers is described which comprises at least one vacuole-containing layer. The vacuole-containing layer comprises particulate hollow bodies which are essentially composed of a polymer which is incompatible with the thermoplastic polymer. A process for producing the film is also described.

Oriented film composed of thermoplastic polymer with particulate hollow

A polyolefin film which includes at least one layer containing polyolefin and cycloolefin polymer (COP), where the cycloolefin polymer is amorphous and has a mean molecular weight M.sub.w in the range from 200 to 100,000, and this mean molecular weight M.sub.w of the cycloolefin polymer is at most 50% of the mean molecular weight M.sub.w of the polyolefin, and the cycloolefin polymer is a homopolymer or a copolymer containing at most 20% by weight of comonomer.

Polyolefin film containing cycloolefin polymer, process for the

Polymer alloy comprising a) one or more cycloolefin copolymers and b) one or more types of core/shell particles having a diameter of 0.01 to 0.7 micrometer.

Modified cycloolefin copolymer

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 monocyclic or polycyclic ring system, and to a process for the preparation of a cycloolefin copolymer. The cycloolefin copolymers obtained in this way have high tear strengths and are suitable for the production of extrusion parts and injection moldings.

Metallocenes as catalysts in the preparation of cycloolefin copolymers

The disclosed oriented polyolefin film contains at least one voided layer. The voided layer contains an amorphous void-initiating polymer which, after orienting, is present as a separate particle inside the void. In the process for producing the polyolefin film, a molten blend comprising an olefin polymer and the amorphous polymer is extruded through a die at an extrusion temperature above the glass temperature or Vicat softening point of the amorphous polymer, the resulting film is drawn off on one or more rollers, and is then subjected to stretch orientation, followed optionally by thermofixing and a surface treatment.

Oriented polyolefin film with amorphous polymer, a process for its

The present invention relates to a cycloolefin polymer having a solution viscosity &lt;0.25 dl/g, comprising polymerized units of at least one cycloolefin and, if desired, polymerized units of one or more acyclic olefins, wherein the cycloolefin polymer has at one or both ends an olefinically unsaturated group having at least 3 carbon atoms.

Cycloolefin polymers

Growing community of inventors

Kelkheim, Germany

Frank Osan