- 专利标题： VERFAHREN ZUR ISOCYANATMODIFIZIERUNG UNTER VERWENDUNG VON KATALYSATOREN MIT N-P-N-SEQUENZ
- 专利标题（英）： Method for isocyanate modification using catalysts with an npn sequence
-
申请号： EP15705580.7申请日： 2015-02-13
-
公开(公告)号： EP3107922A1公开(公告)日： 2016-12-28
- 发明人: RICHTER, Frank
- 申请人： Covestro Deutschland AG
- 申请人地址： Kaiser-Wilhelm-Allee 60 51373 Leverkusen DE
- 专利权人： Covestro Deutschland AG
- 当前专利权人： Covestro Deutschland AG
- 当前专利权人地址： Kaiser-Wilhelm-Allee 60 51373 Leverkusen DE
- 代理机构： Levpat
- 优先权： EP14155524 20140218
- 国际公布： WO2015124503 20150827
- 主分类号： C07F9/06
- IPC分类号： C07F9/06 ; C08G18/79 ; C08G18/02 ; C08G18/18
摘要：
The invention relates to a method for modifying isocyanates, wherein at least one organic monomer isocyanate having an NCO functionality >1 is oligomerised in the presence of at least one catalyst, said method being characterised in that the catalyst comprises at least one specific compound having an NPN sequence selected from compounds of formula I (formula I), and/or from compounds of formula II (formula II) where HX represents an acid with a pKa value ≥ 2, X
– represents the anion of an acid with a pKa value ≥ 2, and n represents an integer or fractional number between 0 and 20, wherein Y represents R
12 (R
13 )N- and/or one or more substituents of the structure of formula III (formula III) and wherein R
1 to R
19 independently represent identical or different substituents selected from C
1 -C
20 alkyl-, C
1 -C
20 cycloalkyl- and C
6 -C
20 aryl groups, or wherein R
1 and R
2 , R
3 and R
4 , R
5 and R
6 , R
7 and R
8 , R
9 and R
10 , R
12 and R
13 , R
14 and R
15 , R
16 and R
17 , R
18 and R
19 independently represent identical or different substituents selected from C
1 -C
20 alkylene-, C
1 -C
20 cycloalkylene-, C
6 -C
20 arylene groups, and can form a 3- to 12-membered ring with the N atom joined to the P atom. The invention also relates to the use of a catalyst of this type.
– represents the anion of an acid with a pKa value ≥ 2, and n represents an integer or fractional number between 0 and 20, wherein Y represents R
12 (R
13 )N- and/or one or more substituents of the structure of formula III (formula III) and wherein R
1 to R
19 independently represent identical or different substituents selected from C
1 -C
20 alkyl-, C
1 -C
20 cycloalkyl- and C
6 -C
20 aryl groups, or wherein R
1 and R
2 , R
3 and R
4 , R
5 and R
6 , R
7 and R
8 , R
9 and R
10 , R
12 and R
13 , R
14 and R
15 , R
16 and R
17 , R
18 and R
19 independently represent identical or different substituents selected from C
1 -C
20 alkylene-, C
1 -C
20 cycloalkylene-, C
6 -C
20 arylene groups, and can form a 3- to 12-membered ring with the N atom joined to the P atom. The invention also relates to the use of a catalyst of this type.
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