发明名称 |
POLYMETHYLENE POLYPHENYLAMINE MODIFIED DIAMINE CHAIN EXTENDERS AND POLYUREA ELASTOMERS THEREFROM |
摘要 |
Reaction injection molded polyurea elastomers are disclosed that are derived from the reaction of (1) an aromatic polyisocyanate; (2) primary or secondary amine terminated polyethers; and (3) an aromatic amine extender combination comprising (a) an aromatic diamine having at least one of the positions ortho to each amine group substituted by a lower alkyl group and (b) a polymethylene polyphenylamine. The use of the polymethylene polyphenylamine component allows for the retention of the good physical properties of the prior art polyureas while at the same time effecting a cost reduction in the preparation of this useful class of polymers. |
申请公布号 |
DE3667063(D1) |
申请公布日期 |
1989.12.28 |
申请号 |
DE19863667063 |
申请日期 |
1986.09.24 |
申请人 |
THE DOW CHEMICAL COMPANY |
发明人 |
EWEN, JAMES H.;GUERRERO, JOHN O. |
分类号 |
C08G18/00;C08G18/10;C08G18/32;C08G18/65;C08G18/66;(IPC1-7):C08G18/32;C08G18/50 |
主分类号 |
C08G18/00 |
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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