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Patent Searching and Data


Title:
PROCESS OF COATING WOOD
Document Type and Number:
WIPO Patent Application WO/2021/151688
Kind Code:
A3
Abstract:
The present invention relates to a process of coating wood with at least two waterbased coating compositions the process comprising: a) applying a coating composition A comprising at least one anionic polymer A with a Hansch parameter ≤1.6, and drying or allowing to dry said aqueous coating composition A, b) applying a coating composition B comprising at least one anionic polymer B with a Hansch parameter ≥1.7 and pigment, and drying or allowing to dry said aqueous coating composition B, with the proviso that the difference of the Hansch Parameters of anionic polymer B and anionic polymer A is at least 0.5. The invention also relates to wood coated accordingly, and the use of a coating composition A, comprising an aqueous anionic polymer A with a Hansch parameter ≤1.6, as an undercoat for coating wood.

Inventors:
GASCHLER WOLFGANG (DE)
CONIGLIO MOSKOVICS RODRIGO (UY)
Application Number:
PCT/EP2021/050760
Publication Date:
September 10, 2021
Filing Date:
January 15, 2021
Export Citation:
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Assignee:
BASF SE (DE)
International Classes:
B05D7/00; C09D5/02; B05D7/08; C08F2/22; C08F12/08; C08F22/14; C09D7/61; C09D15/00; C09D125/14; C09D131/04; C09D133/06; C08K3/22; C08K3/26; C08K3/34
Foreign References:
US3847857A1974-11-12
EP3374439A12018-09-19
US20190263941A12019-08-29
Attorney, Agent or Firm:
BASF IP ASSOCIATION (DE)
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