Henkel Ag & Company, Kgaa

Ablestik (shanghai) Ltd.

Ralf Dunekake

Johann Klein

Udo Kragl

Esteban Mejia

Andrea Gutacker

Thomas Plantenberg

David Briers

Markus Bonigut

Sebastien Lanau

Marleen Winterberg

Jing Zhou

Ligang Zhao

Klaus Helpenstein

Claudia Meckel-Jonas

Christina Despotopoulou

Annika Dietrich

Stijn Gillissen

Jens Baumgard

Leticia Borque

Henrik Lund

Karen Leyssens

Marta Woznicka

Niklas Schafhausen

The present invention relates to radiation of dual radiation/moisture curable compositions based on (meth)acrylate- and silane-terminated polymers that can be used as 3D printing materials and provide isotropic and elastomeric properties. The invention further relates to the use thereof as 3D printing materials and printing methods using said compositions.

Radiation curable and printable composition

The present disclosure relates to a radiation or radiation/moisture dual curable compositions based on (meth)acrylate polymers or (meth)acrylate- and silane-terminated polymers. The invention further relates to their use as an adhesive, sealant and/or coating material, and adhesive, sealant and/or coating materials comprising said curable composition thereof.

Radiation curable composition with improved mechanical properties

A method for producing a hydroxyl-functionalized polysiloxane having secondary or tertiary hydroxyl groups, said method comprising the steps of:  

Process for the preparation of hydroxyl-functionalized polysiloxanes

The present invention relates to a method for preparing functionalized cyclosiloxanes of Formula I, wherein R, R, R, m, n1 and n2 are as defined herein, comprising reacting (i) a cyclosiloxane of Formula II with (ii) a substituted acetylene of Formula III in the presence of a hydrosilylation catalyst. The invention further relates to methods for preparing biscyclosiloxanes by reacting the vinyl cyclosiloxanes obtained according to the described methods and the (bis)cyclosiloxanes obtainable according to the described methods.

Method for the preparation of functionalized cyclosiloxanes

A silicon-based curable composition providing improved transparency, mechanical strength and resistance against heat and photo-degradation comprises at least one organopolysiloxane represented by the composition formula (1):(RSiO)(RSiO)(RRSiO)(RSiO)(RSiO)(RRSiO)&#x2003;&#x2003;(1),wherein each Rindependently represents a methacryloxyalkyl group having 5 to 20 carbon atoms and a&#x2267;0, b&#x2267;0, c&#x2267;0, d&#x2267;0, e&#x2267;0, f&#x2267;0, c+e&#x3e;0, and a+b+c+d+e+f=1; and at least one curing catalyst. The product is ideal for encapsulation of LED (light emitting device) elements.

Hybrid silicone composition for light emitting device

Curable compositions are disclosed, containing at least one organopolysiloxane, which contains at least one hydroxyl group and/or group which can be hydrolyzed, in aqueous dispersion, i) at least one oganopolysiloxane having a dynamic viscosity of 0.05 to 7 (measured according to Brookfield DV-II+, spindle 3, 23&#xb0; C.), which is free of hydroxyl groups and/or groups which can be hydrolyzed, in aqueous dispersion, at least one cross-linking agent, at least one emulsifier, at least one cross-linking catalyst, at least one aqueous silicon-free polymer dispersion, at least one filler, and optionally water. The compositions are suitable as sealants, adhesives, or coating agents for application in the construction field, in particular in the sanitary field and in the kitchen field. They are characterized in relation to aqueous silicone preparations known up to this point by an improved adhesion spectrum, in particular on plastic substrates.

Curable compositions containing aqueous dispersions of organopolysiloxanes

Growing community of inventors

Duesseldorf, Germany

Ralf Dunekake