Sika Technology Ag

Barbara Jucker

Marcel Oertli

Ueli Pfenninger

Urs Burckhardt

Pierre-Andre Butikofer

Daniele Rutz

Raphael Teysseire

Carsten Zilg

Thomas Pusel

Susanne Strauss

Willi Tenisch

Pierre-André Bütikofer

Takuya Kunitomo

Shoko Sakata

Pierre-André Buetikofer

A two-component composition is based on silane-functional polymers, especially silane-functional polymers with high reactivity. Such a composition shows long shelf life without the requirement of expensive stabilizers and is suitable to be used as a low E-modulus joint sealant offering excellent durability in high movement joints.

Two-component composition

A composition that includes at least one silane-functional polymer P and 20 to 60% by weight of aluminum hydroxide or magnesium hydroxide or mixture thereof, is disclosed. The composition has a viscosity of 500 to 20,000 mPa&#xb7;s measured according to DIN 53018 at a temperature of 20&#xb0; C. The composition is suitable as a liquid membrane and has very good flammability properties, i.e., it is difficult to ignite and is self-extinguishing.

Liquid film based on silane-terminated polymers

The current invention relates to a moisture-hardening composition that contains, in addition to a silane-functional polymer with end groups of formula (I), a reaction product that can be manufactured from an amino silane with primary amino groups and an alkene that is free of silane groups. The compositions are characterized by improved expandability with concurrent high reactivity, good adhesion characteristics, and high tear strength and are suited especially for use as elastic bonding substance or sealant.

Moisture-hardening compositions containing silane-functional polymers and aminosilane adducts

A silane-functional polyester of formula (I): wherein

Silane-functional polyesters in moisture-curing compositions based on silane-functional polymers

A composition including: i) at least one moisture-reactive silane-functional polymer which is liquid at room temperature; and ii) at least one silane-functional polyester of formula (I): 

Moisture-curing compostion with improved initial strength

The present invention relates to moisture-curing compositions that comprise, in addition to a first type of polymer having a specific end group, at least one additional type of polymer having a different specific end group. It has been shown that such compositions have a surprisingly quick adhesive formation and a low amount of seepage.

Moisture-curing composition comprising at least two polymers having silane groups

The invention relates to moisture-curable compositions that air provided with increased elasticity while having good mechanical properties and adhesion. Said compositions contain at least on silane-functional polymer A, at least one aminosilane AS2, and at least one &#x3b1;-functional organodialkoxysilane at an amount of 0.6 to 5.0 parts by weight relative to 100 parts by weight of polymer A. Also disclosed are the production and use of the inventive compositions, especially as a sealant and adhesive.

Moisture-curable composition featuring increased elasticity

Moisture-curing compositions include at least one silane-functional polymer P with at least two terminal groups of formula (I) and at least one reaction product R which is produced from at least one aminosilane AS with at least one primary amino group and at least one silane group-free alkene M which is capable of entering in 1,4 addition reactions with primary amino groups. The compositions have improved adhesive properties and are especially suitable for use as adhesives, sealing materials or coatings, especially as elastic adhesive or sealing materials.

Moisture-curing compositions containing silane-functional polymers and aminosilane adducts with good adhesive properties

Moisture-curing compositions include at least one silane-functional polymer P with at least two terminal groups of formula (I), at least one aminosilane AS and at least one (meth)acrylsilane or anhydriodosilane of formula (II). The compositions have improved adhesive properties and are especially suitable for use as adhesives, sealing materials or coatings, especially as elastic adhesive or sealing materials.

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Zurich, Switzerland

Barbara Jucker