Selective polyurethane prepolymer synthesis
AssigneePolyU GmbH
InventorsKlaus LANGERBEINS, Michael SENZLOBER
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Abstract
The present invention relates to a selective process for the preparation of NCO-functionalized polyols, to their use in the preparation of silylated polyurethanes, to processes for preparing silylated polyurethanes and to silylated polyurethanes obtainable by a reaction of NCO-functionalized polyol with amino silane and to their use in CASE applications (coatings, adhesives, sealants and elastomers).
Claims59
Silylated polyurethanes obtainable by a reaction of NCO-functionalized polyol with organosilane.
Method for the preparation of silylated polyurethanes comprising the following steps:
- provision of NCO-functionalized polyol,
- reaction of NCO-functionalized polyol with organosilane, preferably with aminosilane.
Method for the preparation of silylated polyurethanes comprising the following steps:
- provision of a mixture of NCO-functionalized polyol and oligomeric and/or polymeric polyurethane prepolymers,
- reaction of the provided mixture with organosilane, preferably with aminosilane.
Dependencies are inferred from the claim text.