Dsm IP Assets B.v.

Covestro (netherlands) B.v.

Zeon Corporation

Dsm Assets B.v.

Marco Marcus Matheus Driessen

Paulus Antonius Maria Steeman

Melvin P Zussman

Debra Lynn Fish Repko

Johan Franz Gradus Antonius Jansen

John Edmond Southwell

Franciscus Johannes Marie Derks

Rudolfus Antonius Theodorus Maria Van Benthem

Johannes Wilhelmus Belt

Jacobus Adriaan Antonius Vermeulen

Beert Jacobus Keestra

Michael Alphonsus Cornelis Johannes Van Dijck

Jigeng Xu

Adrianus Cornelis Bastiaan Bogaerds

Richard Thomas

Joseph Petronella Friederichs

Robbert Van Sluijs

Michelle Elizabeth Seitz

Gerhard Vliet Van

Guido Joseph Elisabeth Hansen

Micha Sandor Nicolaas Hubert Mulders

Beert Jacobs Keestra

Gerhard Van Vliet

Micha Mulders

Matthias Jozef Gertruda Brouns

Described herein are methods and compositions for forming three-dimensional objects via material jetting processes, the methods including the repeated steps of selectively depositing a liquid thermoset material onto a surface from a nozzle of at least one jetting head in a first specified direction and exposing at least a portion of the liquid thermoset material to a source of actinic radiation in order to form a three-dimensional object from the cured thermoset material, wherein the jetting head is configured to eject droplets of the liquid thermoset material from the nozzle at prescribed elevated operating temperatures, and wherein the liquid thermoset material is chosen so as to possessing prescribed viscosity and rheological characteristics.

Compositions and methods for high-temperature jetting of viscous thermosets to create solid articles via additive fabrication

Thermoset compositions and methods for forming three-dimensional articles via an additive fabrication process, and articles made therefrom are disclosed herein. In an embodiment, a composition comprises a first network-forming component comprising a first oligomer comprising a backbone and having at least 2 polymerizable groups, one or more first network monomers, and a first network initiator. The backbone of the first oligomer comprises a polyepoxide based on Bisphenol A, F, or S, a polyepoxide based on hydrogenated Bisphenol A, F, or S, a polycarbonate, or a polyimide. The composition may further comprise a second network-forming component.

Thermosetting compositions and forming three-dimensional objects therefrom

Thermoset compositions and methods for forming three-dimensional articles via an additive fabrication process, and articles made therefrom are disclosed herein. In an embodiment, a composition comprises a first network-forming component comprising a TPA-based polyester comprising a backbone and having at least 2 polymerizable groups, one or more first network monomers, and a first network initiator. The backbone of the TPA-based polyester comprises the reaction product of a terephthalic acid and a polyol. The composition may further comprise a second network-forming component.

The invention relates to a radiation curable resin composition comprising a cationically polymerizable component, a cationic photoinitiator, a hydroxy component, an impact modifier and wherein the resin composition after full cure has a modulus of &#x3e;2 GPa; a yield stress &#x3c;70 MPa; and a Kvalue &#x3e;1.3 MPa&#xb7;(m)or an Izod value &#x3e;0.45 J/cm. The resin composition can preferably be used in the preparation of three dimensional objects.

Radiation curable resin composition and rapid three dimensional imaging process using the same

A method and apparatus for additive fabrication which provides a substrate which helps the newly hardened resin layer to separate from the substrate while providing a substrate of appropriate strength and durability. In an embodiment, the substrate is a multi-layer substrate comprising a transport layer and a structural layer, the transport layer comprising a polyolefin or a fluoropolymer, and the structural layer comprising a semi-crystal line thermoplastic polymer.

Substrate-based additive fabrication process and apparatus

There is described a process for producing a gel free hyperbranched polyamide polymer having primary amino groups (useful as a crosslinker). The process comprises the step of reacting at least one diamine and at least one unsaturated diester in a molar ratio of diamine to diester greater than 1 but less than 3 (preferably 2.1 to 2.9); to form the polyamide in a two stage reaction Michael addition and then amidation. The diamine in kept in excess with at least 5% of water by total weight of the diamine and diester, a reaction temperature less than the boiling point of the diamine; and is held under reduced pressure (30 mbar to 1 atms). Gelation does not occur even after substantially all ethylenic (&#x2014;C&#x2550;C&#x2014;) double bonds; and &#x3e;95% ester [&#x2014;C(O)&#x2550;O] groups have reacted. This violates the Flory rules which predict a gel would form based on the number of functional groups present and their degree of conversion.

Polymer, process and composition

This invention relates to the use of resin compositions for chemical anchoring, wherein the resin composition comprises at least: a. a thiol-containing component, and b. a resin containing one or more reactive moieties selected from the group of: i. non-aromatic carbon double bond moieties, and ii. epoxide moieties, and an initiator. Preferably, the resin composition further comprises a diluent, more preferably a reactive diluent. Furthermore, the present invention also relates to the use of a multi-component, preferably a 2-component system of which one component contains a thiol group(s) containing component for chemical anchoring by means of cold curing.

Method for chemical anchoring

This invention relates to a process for the preparation of a hydrogenated polymer comprising the steps of hydrogenation of at least one carbon-carbon double bond of an unsaturated polymer in latex in the presence of hydrazine, an oxidizing compound and a catalyst, followed by separation of the hydrogenated polymer from the latex. After the separation of the hydrogenerated polymer from the latex a mixing step is carried out in which the hydrogenated polymer is first mixed with an amine group containing compound and next the hydrogenated polymer is mixed with a compound that is capable of reacting with an amine. The invention also relates to the hydrogenated polymer. The invention further relates to the use of this polymer in a compounds to make an article by shaping and vulcanisation.

Process for the preparation of a hydrogenated polymer

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Maasbracht, Netherlands

Marco Marcus Matheus Driessen