发明名称 |
Method for producing a skin layer of a flexible, elastomeric, thermoset, phase-separated polyurethane material |
摘要 |
The thermoset, phase-separated polyurethane material of the flexible skin layer is produced from a reactive mixture which is made of one or more isocyanate compounds and isocyanate reactive compounds which comprise one or more polyol compounds, flexibilisers, chain extenders and/or crosslinkers and amine-initiators. Apart from at least one crosslinking amine-initiator, these amine-initiators further comprise at least one extender amine-initiator which has a functionality of 2 and a molecular weight of less than 300 and which corresponds to formula (I)
€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ HR 1 N-R 2 -OH€ƒ€ƒ€ƒ€ƒ€ƒ(I)
wherein:
R 1 is H or a cyclic or acyclic hydrocarbon chain, which is substituted or not and which comprises one or more hetero-atoms or not, R 1 being preferably H or a C1 to C6 alkyl group; and
R 2 is a hydrocarbon chain which is substituted or not, which comprises a hetero-atom or not and which comprises a backbone linking the amino group with the hydroxyl group and containing at least two carbon atoms.
The combination of the flexibiliser and the extender amine-initiator was found to have an increased effect on the flexural modulus and the softening temperature of the polyurethane material whilst maintaining the required mechanical properties at a satisfactory level. |
申请公布号 |
EP2542605(B1) |
申请公布日期 |
2014.07.16 |
申请号 |
EP20110708774 |
申请日期 |
2011.03.04 |
申请人 |
RECTICEL AUTOMOBILSYSTEME GMBH |
发明人 |
VANLANDSCHOOT, KOEN;MISPELON, JURGEN;HAELTERMAN, BART;SNELLINGS, GEERT |
分类号 |
C08G18/18;C08G18/28;C08G18/32;C08G18/48;C08G18/66;C08G18/75 |
主分类号 |
C08G18/18 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|