摘要 |
<p>A polyurethane resin is composed of a polyol component, a polyisocyanate component and optionally, a chain extender component. At least a portion of the polyol component or chain extender component is a siloxane polyol component represented by the following formula (1) and/or formula (2): <CHEM> wherein R means an alkyl group, R min denotes a hydrogen atom or C1-5 alkyl group, k, l and m stand for 1-250, 0-5 and 0-50 respectively, and n is an integer of 1-3 in the formula (1) and an integer of 2-3 in the formula (2). A thermal recording material containing the polyurethane resin as a heat-resistant layer is also disclosed.</p> |
申请人 |
DAINICHISEIKA COLOR & CHEMICALS MFG. CO., LTD., TOKIO/TOKYO;UKIMA COLOUR & CHEMICALS MFG. CO., LTD., TOKIO/TOKYO |
发明人 |
HANADA, KAZUYUKI, KITAKATSUSHIKA-GUN SAITAMA-KEN;KURODA, KOHICHII, KITA-KU TOKYO;MISAIZU, IWAO, AGEO-SHI SAITAMA-KEN;KASHIMURA, MASASHI, KITA-KU TOKYO;GOTO, TOMOKO, KAWAGUCHI-SHI SAITAMA-KEN;KURIYAMA, KATSUMI, KOSHIGAYA-SHI SAITAMA-KEN |