Title:
APPLICATION OF TUNG OIL IN POLYURETHANE COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2023/141825
Kind Code:
A1
Abstract:
The present invention relates to a polyurethane composition, comprising at least one polyurethane prepolymer containing an isocyanate group; and 0.7-2.5 wt% of tung oil based on the total weight of the composition. In addition, the present invention further relates to a method for improving the anti-pulverization, especially in the case of a high carbon black content, of a coating of a polyurethane composition, comprising: adding, before curing, 0.7-2.5 wt% of tung oil based on the total weight of the polyurethane composition to the polyurethane composition that comprises at least one polyurethane prepolymer containing an isocyanate group.
Inventors:
SONG ZHIYONG (CN)
NAKAYAMA TOSHIAKI (JP)
NAKAYAMA TOSHIAKI (JP)
Application Number:
PCT/CN2022/074077
Publication Date:
August 03, 2023
Filing Date:
January 26, 2022
Export Citation:
Assignee:
SIKA TECH AG (CH)
SONG ZHIYONG (CN)
SONG ZHIYONG (CN)
International Classes:
C09D175/04; C08L75/04; C09J175/04
Foreign References:
| CN108239516A | 2018-07-03 | |||
| CN108504324A | 2018-09-07 | |||
| CN109722204A | 2019-05-07 | |||
| JP2003119382A | 2003-04-23 | |||
| JP2000178334A | 2000-06-27 | |||
| CN101824259A | 2010-09-08 |
Attorney, Agent or Firm:
CCPIT PATENT AND TRADEMARK LAW OFFICE (CN)
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