Abstract:
Composes actifs lepidoptericides et herbicides ayant la formule generale (FORMULE) ou R, R1, R2 et R3 sont definis dans la description. En general, ces composes ont une activite lepidoptericide accrue et un effet phytotoxique reduit sur les recoltes a proteger des lepidopteres.
Abstract:
A compound characterised in that it corresponds to the following general formula: wherein
R represents C 1 -C 4 haloalkyl; R 1 represents hydrogen or C 1 -C 4 alkyl; and R 2 represents C 2 -C 8 cyanoalkyl, C 5 -C 12 cyanoalkylcycloalkyl, C 5 -C 12 cyanocycloalkyl, C 3 -C 6 cyanoalkylalkoxy or cyanobenzyl; provided that, when R 2 represents cyanoalkyl, R repres- entsdibromoalkyl; is disclosed.
The above compounds may be prepared by reacting an appropriate nitrile amine or salt thereof with an appropriate halogenated acid chloride. The use of the above compounds reduces the injury to desired vegetation caused by herbicides, more particularly thiocarbamates and haloacetanilides. Compositions comprising such antidotes and such herbicides are also disclosed.
Abstract:
Small amounts of a polyurethane elastomer are blended with an internally plasticized vinyl chloride copolymer to improve the abrasion resistance, elasticity, softness or "hand", and low temperature flexibility of films made from the resulting blend. The internally plasticized vinyl chloride copolymer may contain 50 to 80% by weight of vinyl chloride, 3 to 47% by weight of a C 6 -C 10 alkyl acrylate and 47 to 3% by weight of a bis(hydrocarbyl)vinyl phosphonate. The polyurethane elastomer may have a Shore "A" hardness of 69 to 75 and an average particle size of under 1000 micrometers.
Abstract:
Herbicidally active thiocarbamates are employed in combination with organophosphorothioates, the latter in sufficient qualtity to prevent soil degradation of the former. As a result, the herbicidal effectiveness of the thiocarbamate is significantly enhanced and prolonged, rendering a single application of the herbicide effective over a longer period of time.
Abstract:
The stability of vanadium tetrachloride is improved by the addition of phosphorus halides such as phosphorus trichloride. Preferably, the vanadium tetrachloride is prepared by the reductive chlorination of vanadium oxychloride in the presence of activated carbon having a sulphur content less than 1% by weight.
Abstract:
Molten hexachlorobenzene by-product from perchloroethylene/carbon tetrachloride manufacture is collected by dispersing it in water which causes it to solidify and form a slurry and the slurry is then passed through a filter/package device which removes the solid hexachlorobenzene by-product from the slurry and also serves as a container for the solid material. The filter/package device comprises a housing (81 having an opening for admitting slurry, means (81) to allow liquid to flow out of a storage space defined by said housing and an interior liner (9) formed as a filter medium so that solid material can be recovered from the slurry.
Abstract:
Chlorination of an acid with a chlorinating agent produces a reaction mixture from which the desired acid chloride may be recovered by distillation. In the chlorination and distillation, by-products, polymers and degradation products may be produced which can cause a decrease in the yield of the desired acid chloride. A particular problem arises from the tendency of acid chlorides to degrade and/ or polymerize when subjected to excessive temperatures for long periods. An improved process for recovering an acid chloride from a mixture containing the acid consists in distilling the acid chloride from the mixture in the presence of an effective quantity of a distillation improvement additive, such as an organo polysiloxane or a mineral oil, which remains substantially liquid under the conditions of distillation. In this way the problems referred to are reduced or overcome and increased yields of acid chloride are obtained.
Abstract:
A photopolymerizable composition comprising photopolymerizable ethylenically unsaturated compounds and, as the photoinitiator, a benzoyl benzoate having the formula: wherein X is OR, NHR or NRR; R is an independently selected hydrocarbon of 1 to 30 carbon atoms, alkoxysubst i tuted alkyl of 2 to 12 carbon atoms or aminosubstituted alkyl of 2 to 12 carbon atoms; R' is an independently selected halogen orX; and n and m are independently selected integers from 0 to 3.