Title:
TWO-COMPONENT SYSTEM FOR ELASTIC COATINGS
Document Type and Number:
WIPO Patent Application WO/2019/062383
Kind Code:
A1
Abstract:
A two-component system is provided, which comprises a component A) comprising at least one polymeric polyol which has an OH content of ≤ 4.5 wt%, based on the total solids content of the polymeric polyol, and a component B) comprising at least one polyisocyanate which has a number average isocyanate group functionality of ≥ 4.0 to ≤ 10.0, based on the total solids content of the polyisocyanate, a fraction of ≤ 25 wt%, based on the total solids content of the polyisocyanate, of oligomers containing isocyanate groups and having a number-average molecular weight of ≤ 780 g/mol, and an isocyanurate group fraction of ≥ 5 mol% to ≤ 70 mol%, based on the total amount of isocyanurate groups and allophanate groups in the polyisocyanate. A method is also provided for producing a coating on a substrate, to the coating obtainable by this method, and to the coated substrate.
Inventors:
LIU QINGLAN (CN)
IRLE CHRISTOPH (DE)
MAGER DIETER (DE)
CHENG LIMIN (CN)
IRLE CHRISTOPH (DE)
MAGER DIETER (DE)
CHENG LIMIN (CN)
Application Number:
PCT/CN2018/101484
Publication Date:
April 04, 2019
Filing Date:
August 21, 2018
Export Citation:
Assignee:
COVESTRO DEUTSCHLAND AG (DE)
LIU QINGLAN (CN)
LIU QINGLAN (CN)
International Classes:
C08G18/00; C08G18/78
Domestic Patent References:
WO2015112439A1 | 2015-07-30 | |||
WO2012013681A1 | 2012-02-02 | |||
WO2012007431A1 | 2012-01-19 |
Foreign References:
CN106905509A | 2017-06-30 | |||
CN104130372A | 2014-11-05 | |||
CN105418886A | 2016-03-23 | |||
CN107189039A | 2017-09-22 |
Other References:
See also references of EP 3688050A4
Attorney, Agent or Firm:
CHINA PATENT AGENT (H.K.) LTD. (CN)
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