公开(公告)号：US4461852A

公开(公告)日：1984-07-24

申请号：US512776

申请日：1983-07-11

申请人： Tsutomu Nakamura ,  Akira Kuroda ,  Masatoshi Onishi ,  Tetsuo Sasaki

发明人： Tsutomu Nakamura ,  Akira Kuroda ,  Masatoshi Onishi ,  Tetsuo Sasaki

IPC分类号： C08G18/54 ,  C08G18/32 ,  C08J9/00

CPC分类号： C08G18/542 ,  C08G2101/0025 ,  C08G2101/005 ,  C08G2150/60

摘要： A phenolic resin foam having excellent mechanical strength and flame resistance is obtained by letting a resinous mixture comprising a benzylic ether type phenolic resin, a blowing agent, an aromatic sulfonic acid, a polyisocyanate compound, and water to stand at room temperature or more so as to allow the mixture to foam and solidify.

摘要翻译： 通过使含有苄基醚型酚醛树脂，发泡剂，芳香族磺酸，多异氰酸酯化合物和水的树脂混合物在室温以上放置，得到机械强度和阻燃性优异的酚醛树脂发泡体， 以使混合物发泡和固化。

公开(公告)号：US4345042A

公开(公告)日：1982-08-17

申请号：US241439

申请日：1981-03-06

申请人： Akira Kuroda ,  Tsutomu Nakamura ,  Masatoshi Onishi

发明人： Akira Kuroda ,  Tsutomu Nakamura ,  Masatoshi Onishi

IPC分类号： C08G18/00 ,  C08G18/02 ,  C08G18/09 ,  C08G18/54 ,  C08G18/14

CPC分类号： C08G18/542 ,  C08G18/092 ,  C08G2101/005 ,  C08G2170/60

摘要： A polyurethane-modified polyisocyanurate foam having an excellent heat-resistance and flame-resistance and a reduced smoke-generation, comprises a reaction product of a mixture containing (A) at least one polyisocyanate compounds; (B) at least one polyol compound including, benzylic ether type phenolic resin of the formula (1): ##STR1## wherein R=H, hydrocarbon, oxyhydrocarbon or halogen, X=H or methylol, the molar ratio methylol/H.gtoreq.1, m+n.gtoreq.2 and m/m.gtoreq.1; p=1.about.3, (C) a trimerization catalyst, and; (D) a blowing agent, the ratio of the isocyanate equivalent of the isocyanate compound to the hydroxyl equivalent of the polyol compound being from 1.5 t 10.

摘要翻译： 含有（A）至少一种多异氰酸酯化合物的混合物的反应产物，具有优异的耐热性和阻燃性和减少烟雾产生的聚氨酯改性的聚异氰脲酸酯泡沫， （B）至少一种多元醇化合物，其包括式（1）的苄醚型酚醛树脂：其中R = H，烃，氧烃或卤素，X = H或羟甲基，羟甲基/ H> = 1，m + n> / = 2和m / m> / = 1; p = 1差异3，（C）三聚催化剂，和 （D）发泡剂，异氰酸酯化合物的异氰酸酯当量与多元醇化合物的羟基当量的比为1.5t 10。

公开(公告)号：US4340768A

公开(公告)日：1982-07-20

申请号：US196756

申请日：1980-10-14

申请人： Susumu Jinbo ,  Shoichi Kohno ,  Masatoshi Onishi

发明人： Susumu Jinbo ,  Shoichi Kohno ,  Masatoshi Onishi

IPC分类号： C07C27/00 ,  C07C37/02 ,  C07C37/68 ,  C07C37/72 ,  C07C39/15 ,  C07C67/00 ,  C07C37/84

CPC分类号： C07C37/72 ,  C07C37/02

摘要： 4,4'-Dihydroxybiphenyl is produced by hydrolyzing 4,4'-dibromobiphenyl in the presence of a copper compound catalyst in an alkaline aqueous solution; extracting by-products from the alkaline aqueous solution with an alcohol or ketone which forms an organic phase; neutralizing or acidifying the alkaline aqueous solution with an acid; extracting the reaction product with the specific solvent; and crystallizing the reaction product from the extracted solution to obtain 4,4'-dihydroxybiphenyl having high purity.

摘要翻译： 在铜化合物催化剂存在下，在碱性水溶液中水解4,4'-二溴联苯来制备4,4'-二羟基联苯; 用形成有机相的醇或酮从碱性水溶液中萃取副产物; 用酸中和或酸化碱性水溶液; 用特定溶剂萃取反应产物; 并从提取的溶液中使反应产物结晶，得到高纯度的4,4'-二羟基联苯。