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Title:
TWO-COMPONENT POLYURETHANE ELASTOMER COATING FOR CORROSION AND WEATHERING PROTECTION
Document Type and Number:
WIPO Patent Application WO/2020/229229
Kind Code:
A3
Abstract:
The present invention relates to a two-component composition suitable for providing a coating preparation from which a cured layer can be obtained in order to protect the surface of materials against the detrimental impact of weathering and/or corrosion. The two-component composition comprises a first component C1 comprising (a) a polyolefin having a polymer backbone consisting of (a-i) repeating units derived from an olefinically unsaturated monomer having 4 carbon atoms and, optionally, (a-ii) a hydrocarbon group L having 5-20 carbon atoms in a non-terminal position of said polymer backbone, wherein said polymer backbone has functional groups selected from hydroxyl groups and amine groups at its chain ends; and (C2) a second component comprising a preparation comprising (b1) a polyisocyanate having 2 or more isocyanate groups and/or (b2) a reaction product having isocyanate groups obtained by reacting said polyisocyanate having 2 or more isocyanate groups (b1) and (b2a) a polyolefin having a polymer backbone consisting of (b2a-i) repeating units derived from an olefinically unsaturated monomer having 4 carbon atoms and, optionally, (b2a-ii) a hydrocarbon group having 5-20 carbon atoms in a non-terminal position of said polymer backbone, wherein said polymer chain has functional groups selected from hydroxyl groups and amine groups at its chain ends.

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Inventors:
BRUCHERTSEIFER CHRISTIAN (DE)
BUCK KLAUS (DE)
CSIHONY SZILARD (DE)
WALTHER BURKHARD (DE)
NOWICKI ROLAND (DE)
Application Number:
PCT/EP2020/062445
Publication Date:
December 30, 2020
Filing Date:
May 05, 2020
Export Citation:
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Assignee:
CONSTRUCTION RESEARCH & TECHNOLOGY GMBH (DE)
International Classes:
C08G18/76; C08F8/00; C08F8/04; C08F110/10; C08G18/62; C08G18/75; C09D175/04
Foreign References:
US5221707A1993-06-22
EP0632077A21995-01-04
Attorney, Agent or Firm:
BASF IP ASSOCIATION (DE)
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