POLYIMIDES MODIFIED WITH NEW ALKENYLPHENOXYALCANES, THEIR USE AND THE NEW ALKENYLPHENOXYALCANES
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POLYIMIDES MODIFIED WITH NEW ALKENYLPHENOXYIMIDES, THEIR USE AND THE NEW ALKENYLPHENOXYIMIDES
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ALKENYLPHENOL MODIFIED POLYIMIDE
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Curable resins comprising bisimides
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Curable resins
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Curable resins ii
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Curable resins
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Thermosetting imide resins from dihydrazide
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FIBER MATERIALS PRE-IMPREGNATED WITH DUROMER POLYIMIDE RESINS, AND METHOD FOR THE PRODUCTION THEREOF
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COMPOSITES AND METHOD FOR THEIR PRODUCTION
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Alkyl and aryl magnesium halide prepn. - using alkyl or aryl halide purified by recrystallisation, dissolution, azeotropic impurity sepn and solvent distn.
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Di:propyl:acetic acid prodn. for pharmaceuticals etc. - by thermal decarboxylation of di:propyl-malonic acid in suspension in toluene
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Di:propyl:malonic acid prodn. from mono: and di:propyl malonate ester( - by saponification in presence of limited amt. of water
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Prepn. of di:propyl-acetic acid - by reacting di;ethyl malonate with propyl bromide and heating the resulting di:propyl-malonic acid
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Anhydrous carboxylic or halo:carboxylic acid alkali salt prodn. - by reacting the acid with a sub-stoichiometric amount of alkali alcoholate
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HEAT-CURABLE IMID RESIN
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HEAT-CURABLE IMIDE RESINS
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HEAT-CURABLE IMIDE RESINS
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Di:alkyl-amino-alkyl chloride hydrochloride prepn. - comprises reaction of bromo-chloroalkane with di:alkylamine using ammonium- or phosphonium halide catalyst
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PROCESS FOR THE PREPARATION OF ISOMER-FREE 2-HALOGENTHIOXANTHONES
