Modified tert-butoxycarbonyl(m-BOC) derivatives as monomeric and polymeric aminoprotecting groups — VII
摘要:
Polymerizable N-methacrylamino m-BOC-type 1,1-dimethyl-2-methacrylmethanamido-ethoxy-carbonyl- and 1,1-dimethyl-3-methacrylmethanamido-butoxy-carbonyl group, derived from the corresponding t-alkohols have been developed as acid labile aminoprotecting groups. The synthesis of monomeric and polymeric N-methacrylamino m-BOC amino acids and amino acid methyl esters and their application for peptide synthesis following the (N --> C)-assembly method are described. The rapid, acid induced cleavage of the protecting group leads to the formation of oxazole resp. oxazine derivatives.
Transesterification of Methyl Methacrylate with Amino Alcohols. Preparation of a Primary Aminoalkyl Methacrylate and 2-Isopropenyl-4,4-dimethyloxazoline1
Cross-linkable, electrically conductive composition, electric conductor and process for forming the same
申请人:NITTO CHEMICAL INDUSTRY CO., LTD.
公开号:EP0837112A2
公开(公告)日:1998-04-22
An anticorrosive composition comprising (a') an acidic group-containing, self-doping type soluble, electrically conducting polymer.
一种防腐组合物,包含 (a') 一种含酸性基团、自掺杂型可溶性导电聚合物。
CROSS-LINKABLE CONDUCTIVE COMPOSITION, CONDUCTOR, AND PROCESS FOR FORMING THE SAME
申请人:NITTO CHEMICAL INDUSTRY CO., LTD.
公开号:EP0844284A1
公开(公告)日:1998-05-27
The first of this invention is a cross-linkable, electrically conductive composition comprising (a) a soluble, electrically conducting polymer having a sulfonic acid group and/or a carboxyl group and (b) a compound having at least two functional groups capable of reacting with the sulfonic acid group and/or carboxyl group of the soluble, electrically conducting polymer (a).
Process for preparing bead polymers with an average particle size in the range from 1 to 40 microns, moulding compositions comprising bead polymer, and mouldings and PAMA plastisols
申请人:ROEHM GMBH & CO. KG
公开号:US20020123563A1
公开(公告)日:2002-09-05
The present invention provides a process for preparing bead polymers having an average particle size of 1 to 40 &mgr;m, which includes:
contacting:
at least one polymerizable mix which includes at least 50% by weight of at least one (meth)acrylate monomer,
at least one aluminum compound, and
an aqueous phase, to prepare a mixture;
dispersing the mixture at a shear rate≧10
3
s
−1
to form a dispersion, wherein the dispersion is stabilized by the aluminum compound; and
polymerizing to produce bead polymers having an average particle size of 1 to 40 &mgr;m.
VERFAHREN ZUR HERSTELLUNG EINER ZUSAMMENSETZUNG, DIE POLYMERE ESTERVERBINDUNGEN MIT LANGKETTIGEN ALKYLRESTEN AUFWEIST, SOWIE VERWENDUNG DIESER ZUSAMMENSETZUNG
申请人:RohMax Additives GmbH
公开号:EP1244716A1
公开(公告)日:2002-10-02
VERFAHREN ZUR HERSTELLUNG VON POLYMERZUSAMMENSETZUNGEN MIT REDUZIERTEM HALOGENGEHALT, HALOGENREDUZIERTE POLYMERZUSAMMENSETZUNGEN SOWIE VERWENDUNG DIESER ZUSAMMENSETZUNG