Mononuclear star-branched polymer dielectric material and organic thin film transistor
US7928430B2 · kind B2 · utility
1Cited by
3References
5Claims
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Key dates
| Filing date | Feb 8, 2007 |
| Grant date | Apr 19, 2011 |
| Priority date | — |
| Expiry date | Feb 14, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K10/466
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A mononuclear star-branched polymer dielectric material having a repeat unit of the formula (I):A-Bn (I)wherein, A represents a multifunctional center having a functionality and a functional group with “n” arms; n is an integer greater than 2. B represents a hydrolyzed or partially hydrolyzed compound of the formula (II):wherein, X represents H or CH3; R represents H, alkyl or is selected from a group consisting of acetoxyl, t-butyl, t-butyldimethyl silyl, acid labile groups and acid stable groups; “a” is an integer from 1 to 5; y and z are molar ratio and are the numbers satisfying y+z=1, 0<y≦1 and 0≦z<1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.