发明名称 |
STAR-BRANCHED POLYAMIDES AND STAR-BRANCHED POLYAMINE DERIVATES THEREOF |
摘要 |
<p>A star/comb-branched polyamides having at least 3 branches emanating from the residue of a core compound pending from a substantially linear polymer backbone wherein each branch has a plurality of amide moieties in which each such amide moiety has its amide nitrogen in the chain of the branch and each such amide nitrogen bears a pendant carbonyl moiety, said amide moieties being hydrolyzable to form amine moieties without cleaving the chain of the branch. Star/comb-branched polyamides having good resistance to degradation upon exposure to shear are prepared by reacting polyvalent core compounds such as tribromoneopentyl alcohol with an oxazoline such as 2-ethyl-2-oxazoline to provide the desired polyamide. The polyamides are readily hydrolyzed with acid such as hydrochloric acid to form star/comb-branched polyamines. The polyamides and the polyamines are useful as viscosity enhancing agents in such applications as paints, mobility control agents and hydraulic fluids.</p> |
申请公布号 |
EP0195126(B1) |
申请公布日期 |
1993.09.29 |
申请号 |
EP19850115834 |
申请日期 |
1985.12.12 |
申请人 |
THE DOW CHEMICAL COMPANY |
发明人 |
TOMALIA, DONALD A.;HALL, MARK J. |
分类号 |
C08G73/00;C07C67/00;C07C231/00;C07C231/12;C07C233/18;C07C233/36;C08G69/00;C08G73/02;C08G73/04;C09K3/00 |
主分类号 |
C08G73/00 |
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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