Photoinitiators

Patent metadata

Field	Value
Publication number	US-9399633-B2
Application number	US-201514938896-A
Country	US
Kind code	B2
Filing date	Nov 12, 2015
Priority date	Nov 12, 2010
Publication date	Jul 26, 2016
Grant date	Jul 26, 2016

Abstract

The present invention provides novel photoinitiators for polyurethane formation, in which a photoinitiator moiety and a tertiary amine are incorporated into the photoinitiator structure, and thus the polyurethane polymer.

First claim

The invention claimed is:

1. A photoinitiator of the formula (I):

in which:
Pi is

With Za attached in para position to the chlorine atom;
Za and Zb together form a single bond, or a linker in which
Za is selected from optionally substituted —(O—(C 1 -C 12 alkylene)) n -, optionally substituted —(NR 1 —(C 1 -C 12 alkylene)) n wherein R 1 is H or optionally substituted C 1 -C 12 alkyl and optionally substituted —(S—(C 1 -C 12 alkylene)) n -; wherein n is 1; wherein Za is joined to Pi via the O, N or S atom in Za; and
Zb is a single bond;
X 1 and X 2 are independently selected from optionally substituted C 1 -C 12 alkylene, optionally substituted C 1 -C 12 alkenylene, optionally substituted heterocyclyl, —O—, —S—, —NR 2 —, —C(═O)—, —C(═NR 2 )—, —Si(R 2 ) 2 —O—, optionally substituted aryl, and combinations thereof, wherein R 2 is H or optionally substituted C 1 -C 12 alkyl;
wherein X 1 and X 2 may be linked to one another or to Za to form one or more ring structures;
wherein Za, X 1 and X 2 are selected such that N is a tertiary amine;
W 1 and W 2 are independently selected from the group consisting of —OH, —NH 2 , —NHR 3 and —SH, wherein R 3 is an optionally substituted C 1 -C 12 alkyl.

2. A photoinitiator according to claim 1 , wherein W 1 and W 2 are the same.

3. A photoinitiator according to claim 1 , wherein X 1 and X 2 are independently selected from optionally substituted C 1 -C 12 alkylene, —O—, —S—, —NR 2 —, wherein R 2 is H or optionally substituted C 1 -C 12 alkyl, and combinations thereof.

4. A photoinitiator according to claim 1 , wherein X 1 and X 2 may be linked to one another to form one or more ring structures.

5. A photoinitiator according to claim 1 , wherein X 1 and X 2 are independently selected from optionally substituted C 1 -C 12 alkylene, or optionally substituted C 1 -C 6 alkylene.

6. A photoinitiator according to claim 1 , wherein X 1 and X 2 are the same.

7. A photoinitiator according to claim 1 , wherein Za is selected from optionally substituted —O—(C 1 -C 12 alkylene)-, or optionally substituted —O—(C 1 -C 6 alkylene)-.

8. A photoinitiator according to claim 1 , wherein X 1 and X 2 are independently selected from optionally substituted C 1 -C 12 alkylene, and W 1 and W 2 are —OH.

9. A photoinitiator according to claim 1 , being
4-{3-[bis(2-hydroxyethyl)amino]propoxy}-1-chloro-9H-thioxanthen-9-one.

Assignees

• Coloplast As

Inventors

• Madsen Niels Joergen
• Sehnal Petr
• Nielsen Christian B
• Anderson David George

Classifications

• C08G18/5024

  containing primary and/or secondary amino groups · CPC title

• C08J3/24

  Crosslinking, e.g. vulcanising, of macromolecules (mechanical aspects B29C35/00; crosslinking agents C08K) · CPC title

• C08G18/3275

  containing two hydroxy groups · CPC title

• C08J2375/00

  Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers · CPC title

• C08G18/758

  containing two or more cycloaliphatic rings · CPC title