发明名称 |
DICYCLOPENTADIENE-MODIFIED UNSATURATED POLYESTER, PROCESS FOR PRODUCING THE SAME, AND RESIN AND MOLDING MATERIAL EACH CONTAINING UNSATURATED POLYESTER |
摘要 |
A process for producing a dicyclopentadiene-modified unsaturated polyester excellent in properties required of molding materials, especially excellent long-term stability, which comprises the first step of reacting a reaction mixture of maleic anhydride (MA) and water (H2O) with dicyclopentadiene (DCPD) and the second step of reacting the resultant reaction product with a polyhydric alcohol or with a polyhydric alcohol and a polybasic acid to obtain the target polyester, wherein (1) the molar ratio of the water to the dicyclopentadiene in the first step exceeds 1 and that of the maleic anhydride to the dicyclopentadiene is 1.2 or higher, or (2) the molar ratio of the water to the maleic anhydride in the first step is 1 or lower, or (3) the requirements (1) and (2) are met in combination; a polyester resin comprising the modified unsaturated polyester and a radical-polymerizable monomer; and a molding material comprising the resin as the main component and giving a molding having excellent resistance to hot water.
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申请公布号 |
WO0046269(A1) |
申请公布日期 |
2000.08.10 |
申请号 |
WO1999JP00518 |
申请日期 |
1999.02.05 |
申请人 |
NIPPON SHOKUBAI CO., LTD.;MATSUKAWA, KENJI;HAYASHI, TOSHIO;TAKABATAKE, KOJI;HAYASHI, KATSURA;FUNAKI, HIRONORI |
发明人 |
MATSUKAWA, KENJI;HAYASHI, TOSHIO;TAKABATAKE, KOJI;HAYASHI, KATSURA;FUNAKI, HIRONORI |
分类号 |
C08F283/01;C08G63/553;C08L67/06;(IPC1-7):C08G63/553;C08K7/02 |
主分类号 |
C08F283/01 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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