Ecole Polytechnique Federale De Lausanne

Ecole Polytechnique Féderale De Lausanne (Epfl)

École Polytechnique Fédérale De Lausanne (epfl)—technology Transfer Office (Tto)

Ecole Polytechnique Federale De Lausanne (Epfl) Epfl-Tto

Novelis, Inc.

Holger Frauenrath

Daniel Görl

Yves Leterrier

Libero Zuppiroli

Roman Marty

Christopher Plummer

Rolando Ferrini

Emmanuel Croisier

Stéphane Suarez

Shuichi Haraguchi

Oguzhan Oguz

Roman Niklaus Marty

Su Liang

Justin Gerard McMullen

Michael Schär

Veronique Michaud

Bjoern Schulte

Stephen Schrettl

Julian Nicolas Bleich

Piotr Mocny

Mathilde GUÈRIN

Michèle Edith Berner

Reuben Yeo

Justin Mcmullen

Mathilde Guèrin

Enzo Bomal

The invention describes a composition containing a) a functionalized polymerthat comprises at least one polyester segmentand at least one, in particular at least two, polymer aggregating segmentcapable of forming non-covalent bonds based on a supramolecular interaction, b) an aggregating additivethat comprises at least one additive aggregating segmentcapable of forming non-covalent bonds based on the same supramolecular interaction as the polymer aggregating segments, wherein the polymer aggregating segmentsand the additive aggregating segmentare ditopic, wherein the polymer aggregating segmentsand the additive aggregating segmentare designed such that they can form aggregatesthat contain polymer aggregating segmentsand additive aggregating segments, and wherein the polyester segment () has a number average molecular weight of from 10'000 g/mol to 500′000 g/mol. The invention also describes a functionalized polymerthat comprises at least one polyester segmentand at least two polymer aggregating segmentscapable of forming non-covalent bonds based on a supramolecular interaction, wherein the polymer aggregating segmentsare ditopic and designed such that they can form aggregates and wherein the polyester segmenthas a number average molecular weight of from 10′000 g/mol to 500′000 g/mol. The invention also describes a method for the preparation of sheets, films, fibers, or molded parts from the composition or the functionalized polymeraccording to the invention, sheets, films, fibers, or molded parts comprising a composition or a functionalized polymeraccording to the invention, and the use of the composition according to the invention for the preparation of sheets, films, fibers, or molded parts.

Composition and method for the preparation of sheets, films, fibers, and molded parts

The invention describes a composition containing a) a functionalized polymer () that comprises at least one polymer segment () and at least two polymer aggregating segments () capable of forming non-covalent bonds based on a supramolecular interaction, b) an aggregating additive () that comprises at least one additive aggregating segment () capable of forming non-covalent bonds based on the same supramolecular interaction as the polymer aggregating segments (), wherein the polymer aggregating segments () and the additive aggregating segment () are ditopic, wherein the polymer aggregating segments () and the additive aggregating segment () are designed such that they can form aggregates () that contain polymer aggregating segments () and additive aggregating segments (), and wherein the aggregating additive () has a molecular weight of from 50 g/mol to 2000 g/mol. The invention also describes a method for the preparation of the composition according to the invention, the use of an aggregating additive () with a functionalized polymer (), and the use of the composition according to the invention.

Composition containing a polymer and an additive

The invention relates to a method for the preparation of a coating comprising at least one coating layer on a substrate, the method comprising the steps of a. providing monomers of the type R&#x2014;(N)-(L)-(C&#x2550;C)-(L')-(N&#x2032;)&#x2014;R&#x2032;, wherein R is a head moiety, R&#x2032; is a tail moiety, (C&#x2261;C)is an oligoyne moiety, L and L&#x2032; are linker moieties, N and N&#x2032; independently are branched or unbranched optionally substituted C-Calkyl moieties optionally containing 1 to 5 heteroatoms, x, m, o, and y are independently 0 or 1, n is 4 to 12, and wherein the head moiety allows for an interaction with the surface of the substrate; b. bringing the monomers into contact with the substrate wherein the interaction of the head moieties of the monomers with the surface of the substrate induces at least a part of the monomers to align in a defined manner thereby forming a film on the surface and bringing the oligoyne moieties of the monomers into close contact with each other; c. inducing a reaction between oligoyne moieties by providing an external stimulus so as to at least partially cross-link the aligned monomers, thereby forming a coating layer on the substrate. The invention further relates to a coating obtainable according to the method of the invention, the use of a coating obtainable according to the method of the invention, a substrate comprising a coating obtainable according to the invention and the use of solid substrate. The invention further relates to a method for the synthesis of the monomers according to the invention.

Method for the preparation of a coating comprising oligomeric alkynes

Various blends of polymers are disclosed, comprising oligopeptide functionalised polymers such as polyisobutylene and polystyrene. Mono-functionalised and di-functionalised polymers (each containing 0 to 5 peptide units beyond its terminal amide group) may be blended with each other and/or with non-functionalised polymers to produce blended compositions. Such compositions are of use, for example, in vibrations dampers. Certain blends also exhibit self-healing properties.

Blends of oligopeptide terminal polyisobutylene or polystyrene

The present invention concerns a color conversion film comprising at least one active layer, said layer comprising an organic fluorescent dye containing a fluorescent core, wherein said dye is substituted with at least one polymer segment. It also concerns its method of preparation.

Color conversion films comprising polymer-substituted organic fluorescent dyes

Growing community of inventors

Lausanne, Switzerland

Holger Frauenrath