发明名称 |
NOVEL POLYMER AND THERMOSETTING COMPOSITION CONTAINING SAME |
摘要 |
This disclosure relates to a process of purifying a polymer. The process includes (a) providing an organic solution containing a polyimide or polyamic ester in at least one polar, aprotic polymerization solvent; (b) adding at least one purification solvent to the organic solution to form a diluted organic solution, the at least one purification solvent is less polar than the at least one polymerization solvent and has a lower water solubility than the at least one polymerization solvent at 25° C.; (c) washing the diluted organic solution with water or an aqueous solution to obtain a washed organic solution; and (d) removing at least a portion of the at least one purification solvent in the washed organic solution to obtain a solution containing a purified polyimide or polyamic ester. This disclosure also relates to a process of preparing a film on a semiconductor substrate, as well as related purified polymer solutions, films, and articles. |
申请公布号 |
SG11201508593Q(A) |
申请公布日期 |
2015.12.30 |
申请号 |
SG11201508593Q |
申请日期 |
2014.05.16 |
申请人 |
FUJIFILM ELECTRONIC MATERIALS U.S.A., INC. |
发明人 |
MALIK, SANJAY;REINERTH, WILLIAM A.;DE, BINOD B.;NAIINI, AHMAD A. |
分类号 |
C08G81/02 |
主分类号 |
C08G81/02 |
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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