Symmetrical bis(unsymmetrical tertiary-alkyl and tertiary- aralkyl azo)
申请人:Pennwalt Corporation
公开号:US03937761A1
公开(公告)日:1976-02-10
Novel symmetrical bis(unsymmetrical t-alkyl and t-aralykl azo) compounds of the general formula I: R -- N = N -- R.sub.12 -- N = N -- R' (I) wherein R = R' = (R").sub.3 C--, e.g., 1,2-ethylene bis(4-t-butylazo-4-cyanovalerate); and the use of I for sequential generation of free radicals, e.g. styrene monomer and 1,2-ethylene bis(4-t-butylazo-4-cyanovalerate) are reacted to obtain polystyrene containing attached azo groups which in turn is reacted with methyl methacrylate monomer to obtain a block copolymer of polystyrene and poly(methyl methacrylate).
对称的新型双(非对称的t-烷基和t-芳基偶氮基)化合物的一般式I为:R - N = N - R.sub.12 - N = N - R' (I),其中R = R' = (R").sub.3 C--,例如1,2-乙烯基双(4-t-叔丁基偶氮基-4-氰基戊酸酯);以及使用化合物I进行自由基的顺序生成,例如苯乙烯单体和1,2-乙烯基双(4-t-叔丁基偶氮基-4-氰基戊酸酯)反应以获得含有偶氮基的聚苯乙烯,然后再与甲基丙烯酸甲酯单体反应以获得聚苯乙烯和聚甲基丙烯酸甲酯的嵌段共聚物。
Luminescent materials, phosphors and compositions containing such
申请人:Michigan Biotechnology Institute
公开号:US05618467A1
公开(公告)日:1997-04-08
The present invention relates to luminescent materials, phosphors, and compositions containing phosphors and methods of their use. More particularly, it relates to organic phosphors which are amino acid salts and methods of using those phosphors and compositions to make objects photo-luminescent.
Phosphors, compositions containing such phosphors and methods of use
申请人:Michigan Biotechnology Institute
公开号:US05464651A1
公开(公告)日:1995-11-07
The present invention relates to phosphors, composition containing phosphors and methods of their use. More particularly, it relates to organic phosphors which are amino acid salts compositions containing the phosphors and methods of using those phosphors and compositions to make objects photo-luminescent.
Fermentative production of valuable compounds on an industrial scale using chemically defined media
申请人:——
公开号:US20020039758A1
公开(公告)日:2002-04-04
The present invention describes the use of chemically defined media for the fermentative production of valuable compounds on an industrial scale. Microbial strains which are suitable for fermentation on an industrial scale using a chemically defined medium include fungal, yeast and bacterial strains. Suitable strains can be obtained as wild type strains or by screening and selection after mutagenic treatment or DNA transformation.
Fermentative production of lipids on an industrial scale using chemically defined media
申请人:De Laat Maria Wilhelmus Theodorus Antonius
公开号:US20070092955A1
公开(公告)日:2007-04-26
We describe the use of chemically defined media for the fermentative production of valuable compounds on an industrial scale. Microbial strains which are suitable for fermentation on an industrial scale using a chemically defined medium include fungal, yeast and bacterial strains. Suitable strains can be obtained as wild type strains or by screening and selection after mutagenic treatment or DNA transformation.