Sika Technology Ag

Eth Singapore Sec Ltd.

Eth Zurich (swiss Federal Institute of Technology Zurich)

Valunor Ag

Eth Zurich

Norman Blank

Steven Rosenberg

Vincent Belpaire

Jürgen Finter

Hong Yao

Thomas Bove

Adrian Van Maurik

Hans Peter Tschan

Urs Burckhardt

Andreas Kramer

Ueli Sulser

Didier Lootens

Frank Hoefflin

Ulf Velten

Jan Olaf Schulenburg

Juergen Finter

Elyes Jendoubi

Christina Hampel

Kevin Christian Casey

Carsten Zilg

Fabio Matteo Gramazio

Matthias Kohler

Robert Flatt

Cheong Kow

Susanne Strauss

Dominique Mellano

Jabbar Al Shemari

Burkhard Walther

Finn Erik Solvang

Norman Peter Hack

Heinz Bänziger

Philip E Weber

Robert D Myers

Willi Viktor Lauer

Julien Lopez Rios

Georg Schulze

Jörg Vogelsang

Bernd Burchardt

The present disclosure concerns expandable silica particles having a coating comprising talc powder and kaolin powder provided on the outer surface of the expandable silica particle and expandable and expanded silica particles comprising silica fume and/or ultrafine quartz silica sand beneath the surface of the particles. Methods for producing expandable and expanded silica particles are disclosed, including a method using a vibration plate and a furnace having a vibration plate for carrying out that method. The expanded silica particles have high compressive strength, substantially uniform cell size and distribution, low water absorption, and low porosity on the outer surface. They are useful as a filler in matrix materials, like concrete or epoxy, as insulation material with various binder materials, and as water filtration medium.

Expandable silica particles and methods for making and using the same

Method of fabricating a 3-dimensional structure, mesh formwork element for fabricating a 3-dimensional structure, and method of fabricating the same. The method of fabricating a 3-dimensional structure comprises providing a mesh formwork element such that a cavity bound by at least two opposing portions of the mesh formwork is formed; accumulating a material in the cavity; and allowing the material to harden; wherein apertures in the at least two opposing portions of the mesh formwork element are adapted to the hydro-static pressure of the accumulated material or vice versa such that at least two surfaces of the hardened material substantially take on the respective shapes defined by the two opposing portions of the mesh formwork element.

Method of fabricating a 3-dimensional structure, mesh formwork element for fabricating a 3-dimensional structure and method of fabricating the same

In a reinforcing system for reinforcing a cavity of a structural element, a support element is connected to the structural element in the structural element for reinforcement purposes. The support element has channels, an adhesive is disposed in the cavity between the support element and the structural element, and the adhesive can be introduced into the cavity between the support element and the structural element by means of the channels.

Reinforcing system for reinforcing a cavity of a structural element

In the case of a reinforcing system for reinforcing a cavity of a structural element, a carrier element is connected to the structural element in the structural element for reinforcement purposes. The carrier element has channels, an adhesive is disposed in the cavity between the carrier element and the structural element, and the adhesive can be introduced into the cavity between the carrier element and the structural element by means of the channels.

The invention relates to a membrane including a partition layer, wherein the partition layer contains at least 50 wt % of PVC, and a barrier layer. The barrier layer can be a barrier layer, wherein the barrier layer has a polyamide layer containing more than 50 wt % of copolymer, wherein said polyamide layer is connected to the partition layer by a polyurethane layer, wherein the polyurethane layer contains more than 10 wt % of polyurethane. Alternatively, the barrier layer can be a barrier layer, wherein the barrier layer is made of a composition containing 5-50 wt % of polyurethane and 50-95 wt % of copolymer. The membranes according to the invention have significantly lower plasticizer migration compared to the membranes of the prior art and are characterized by improved aging resistance, in particular with regard to the adhesion of the barrier layer to the partition layer, and impermeability to moisture.

PVC membrane having reduced plasticizer migration

A polyurethane adhesive which is useful in bonding porous and non-porous surfaces is provided. The adhesive is especially useful in bonding windshield glass into automotive frames under a variety of environmental conditions, particularly in after market windshield replacement applications. The polyurethane includes at least one urethane prepolymer which is based on at least one thermoplastic polyol. In one embodiment, the urethane prepolymer may be formed from one or more polyisocyanates, one or more polyetherpolyols and one or more thermoplastic polyesterpolyols, wherein the prepolymer has a free isocyanate content of from about 0.6 to about 3.5% by weight, based on the weight of the polyurethane. In another embodiment, a one-part adhesive composition is provided which includes an isocyanate-functional and thermoplastic polyurethane prepolymer having a free isocyanate content of from about 0.6 to about 3.5% by weight, based on the weight of the polyurethane, and a combination of several catalysts which are capable of catalyzing the reaction of isocyanate moieties with isocyanate-reactive moieties while providing less temperature dependent catalyzing of the reaction between isocyanate moieties and water. Also provided is a process for bonding two or more substrates together utilizing the polyurethane adhesive. In automotive windshield replacement applications, the polyurethane adhesive allows for a sufficient working time and development of green strength to provide a safe drive-away time within 1 hour at a temperature from about 0 to about 100&#xb0; C.

Polyurethane adhesive for windshield applications

Polymers P as dispersants, in particular as liquefiers, for hydraulically setting systems, and hydraulically setting systems including the polymer P. The polymer P includes at least one acid unit, at least one ester unit, and at least one unit containing terephthalate or naphthalate.

Dispersant for hydraulically setting systems

A structural reinforcement material is provided that includes a base material selected from thermosets, low viscosity thermoplastics with short transition phases and low viscosities, low melting point metallic alloys, and combinations thereof. At STP, the structural reinforcement material is a solid or a formable dough or a mixture thereof. When heated to an activation temperature, the structural reinforcement material becomes flowable into a cavity. Following cooling, the structural reinforcement material is a solid or a thermoset with a strength sufficient to reinforce the cavity. A structural reinforcement insert comprising the structural reinforcement material is also provided, as is a reinforced cavity of an automobile and a method of reinforcing a cavity.

Structural reinforcement material, insert, and reinforced cavity comprising same

An automotive windshield replacement method which includes: a) applying an adhesive to an automotive windshield and/or an automobile body substrate, said adhesive including at least one urethane prepolymer formed from reaction materials including: i) isophorone diisocyanate and/or 4,4'-diphenylmethanediisocyanate; ii) an ethylene oxide-end-capped triol having a weight average molecular weight of about 4500 to about 5000; and iii) hexanediol adipate; b) contacting the substrates together, within the working time of the adhesive, along at least a portion of the substrate(s) to which the adhesive has been applied; and c) allowing the adhesive to bond the substrates together.

The invention relates to the determination of the dynamic elastic modulus of a material, such as a material comprising a mineral binder like cement, or gypsum, or the like, or a polymer, or ceramic, preferably mortar or concrete, in particular shotcrete, using sound, preferably ultrasound waves which penetrate the material and are continuously measured and analyzed. In particular, the invention relates to an apparatus, to a measuring device, and to a method for determining the dynamic elastic modulus of a material using the apparatus.

Device and method for determining the dynamic elastic modulus of a material

The invention relates to humidity hardening compounds containing at least one polyurethane polymer, P, exhibiting an isocyanate group, at least one polyimine ALD of Formula (I) of at least 22% by weight, in relation to the sum of the components of the compound which contain the isocyanate group, as well as, if necessary, a polyisocyanate oligomer OP. The humidity hardening compound is particularly suitable for providing coatings and linings. The use of the imines makes possible VOC-free or VOC-poor compounds, which is a substantial advantage for indoor applications.

VOC-free or VOC-poor polyurethane coating

The invention relates to viscosifiers, especially terminated polymers that have functional terminal groups, said polymers being pre-extended by polyamines, polymercaptans, (poly)aminoalcohols, (poly)mercaptoalcohols or (poly)aminomercaptans and being reacted to give polymers that are terminated by other functional groups. The viscosifiers have a low content in educts or educt descendants that deteriorate the properties of compositions. They are also charaterized in that the formation of high-molecular addition products is considerably reduced or even excluded so that products obtained have low viscosity and good storage stability. The epoxy-terminated polymer of formula (I) is especially preferred. 

Amide or thioester pre-extended epoxy-terminated viscosifiers and method for producing the same

A method for installing a constrained layer damper on a product of manufacture is disclosed. The method includes applying a layer of first polymeric material to a substrate of the product, wherein the first polymeric material is visco-elastic when solidified. Then, a second layer of polymeric material, which is stiff when solidified, is applied to the first polymeric material such that said first polymeric material is constrained between the second polymeric material and the substrate of the product. At least one of the layers of polymeric materials is dispensed in fluid form during the manufacture of the product from a bulk source of fluid material. The polymeric materials are chosen such that they do not require the application of heat above room temperature to solidify.

Constrained layer damper

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Uster, Switzerland

Norman Blank