Abstract:
Polyamide compositions containing an effective amount of an elemental phosphorus flame retardant additive, preferably red phosphorus, are rendered more flame retardant by heating the composition in the presence of oxygen at a temperature of at least about 100*C.
Abstract:
DISCLOSED ARE UNCURED POLYEPOXIDE RESIN COMPOSITIONS COMPRISING A POLYEPOXIDE CONTAINING OXIRANE GROUPS TOGETHER WITH A METHYL-NORBORNANE-2,3-DICARBOXYLIC ANHYDRIDE AS CURING AGENT, PREFERABLY IN THE PRESENCE OF AN ACCELERATING AGENT, SUCH AS A TERTIARY AMINE OR AN ORGANO METALLIC COMPOUND, AND CURED POLYEPOXIDE RESINS PRODUCED THEREFROM. ALSO DISCLOSED IS PRODUCTION OF NOVEL LIQUID ANHYDRIDE COMPOSITIONS COMPRISING A MIXTURE OF 1AND 5-METHYL-NORBORNANE-2,3-DICARBOXYLIC ANHYDRIDES PRESENT IN A WEIGHT RATIO NO GREATER THAN ABOUT 3:1, AT LEAST ABOUT 40 WEIGHT PERCENT OF SAID 5-METHYL ISOMERS OF SAID MIXTURE BEING OF EXO-CONFIGURATION, BY HEATING AN ANHYDRIDE MIXTURE COMPRISING ENDO-1- AND 5-MEHTYL-5NORBORNENE 2,3-DICARBOXYLIC ANHYDRIDES AT AN ELEVATED TEMPERATURE IN THE PRESENCE OF HYDROGEN. THE POLYEPOXIDE COMPOSITIONS DISCLOSED ARE SUBSTANTIALLY LESS VOLATILE DURING CURING AT ELEVATED TEMPERATURES, AND CURED RESINS PRODUCED THEREFROM EXHIBIT SUPERIOR MECHANICAL PROPERTIES AND ARE OF LIGHTER COLOR AS COMPARED WITH CURED RESINS PRODUCED FROM POLYEPOXIDE COMPOSITIONS DERIVED FROM KNOWN CYCLOALIPHATIC ANHYDRIDE CURATIVES. THE LIQUID NOVEL ANHYDRIDE COMPOSITIONS DISCLOSED ARE STORAGE STABLE FOR EXTENDED PERIODS OF TIME WITHOUT DEPOSITION OF SOLIDS AND CHANGE OF COLOR, AND ARE STABLE TO CHANGES IN TEMPERATURES BELOW DISTILLATION TEMPERATURES.
Abstract:
A method of improving the yield of plants such as legumes by the application thereto of plant growth regulants comprising Alpha oximino alkanoic acids and derivatives thereof having the general formula:
wherein n is an integer from 1 to 12, R is selected from the group consisting of hydrogen, alkyl, cycloalkyl, aralkyl, alkaryl, aryl, heterocyclic, alkenyl and alkynyl, and X is selected from the group consisting of OZ, SZ, NZZ'' and OZ'''' in which Z and Z'' are independently selected from the group consisting of hydrogen, alkyl, cycloalkyl, aralkyl, alkaryl, aryl, heterocyclic, alkenyl and alkynyl and in which Z'''' is an alkali metal.
Abstract translation:通过应用植物生长调节剂的植物生长调节剂提高植物的产量的方法,所述植物生长调节剂包含α-肟基链烷酸及其衍生物,其具有以下通式:O R-(CH 2)nCC ANGLE PARALLEL X NOH其中n是 1至12,R选自氢,烷基,环烷基,芳烷基,烷芳基,芳基,杂环,烯基和炔基,X选自OZ,SZ,NZZ'和OZ“ Z和Z'独立地选自氢,烷基,环烷基,芳烷基,烷芳基,芳基,杂环,烯基和炔基,其中Z“是碱金属。