发明名称 |
Substituted birefringent polyamide |
摘要 |
A class of polyamides comprising recurring units having certain substituted-biphenylene or substituted-stilbene radicals is disclosed. The substituted radicals include substituents so as to confer a non-coplanar molecular configuration and a substantially cylindrical distribution of electron density about the long axis of the recurring units and the chain-extended polymers including such radicals. Molecularly oriented polymers of the invention exhibit optically uniaxial properties. The highly birefringent polymers are suited to application in optical filter and other devices where a refractive and birefringent material is desired.
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申请公布号 |
US4461886(A) |
申请公布日期 |
1984.07.24 |
申请号 |
US19830486800 |
申请日期 |
1983.04.20 |
申请人 |
POLAROID CORPORATION |
发明人 |
ROGERS, HOWARD G.;GAUDIANA, RUSSELL A.;MANELLO, JEANNETTE S.;SAHATJIAN, RONALD A. |
分类号 |
C08G69/26;C08G69/32;(IPC1-7):C08G69/12 |
主分类号 |
C08G69/26 |
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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