The present invention relates to a process for isomerization of pentene-2-oic acid into pentene-3-oic and pentene-4-oic acids.
The pentene-nitriles, more particularly 3-pentene-nitrile and 4-pentene-nitrile, may give adiponitrile by reaction with hydrogen cyanide.
A fibre for thermal bonding comprising copolymers of propylene and 1-pentene, the amount of 1- pentene derived units being from 0.1% to 20% wt.
A 4-methyl-1-pentene (co)polymer composition of the present invention contains (A) a specific 4-methyl-1-pentene (co)polymer and (B) a specific 4-methyl-1-pentene/α-olefin copolymer at a specific ratio.
Disclosed is an optical resin comprising a copolymer of 4-methyl-1-pentene with at least one monomer selected from the group consisting of 3-methyl-1-pentene, 3-methyl-1-butene, and 4,4-dimethyl-1-pentene.
If there are five carbon atoms, then it is a pentose.
Perfluoro-2-pentyne can be synthesized by reacting a 1,1,1-trihalo-2,2,2-trifluoroethane with pentafluoropropylene aldehyde into a 2-halo-1,1,1,4,4,5,5,5-octafluoro-2-pentene and eliminating a hydrogen halide from this 2-pentene.
Copolymer of tetrafluoroethylene, heptafluoro-1-pentene and ethene (CAS RN 94228-79-2
Hexafluoro-2-butyne can be used to produce CF3CH=CHCF2CF3 (1,1,1,4,4,5,5,5-octafluoro-2-pentene).
A representative compound is (E)-N-methyl-5-(3-pyridinyl)-4-penten-2-amine.
Addition of HCl to poly(5-N,N-diisopropylamino-1-pentene) yields the corresponding polyelectrolyte.
The surface layer (A) contains 80 to 100% by mass of a 4-methyl-1-pentene polymer.
The sheath (4) is formed of poly-4- methyl pentenes-1 covering the outer conductor (3).
A terpolymer of ethylene, 1-pentene and a further alpha olefin.
The resin is one selected among cycloolefin polymers, polycyclohexane resins, and 4-methyl-1-pentene polymers.
The present invention relates to a process for the conversion of n-butanol to di-isobutene and pentene and/or di-pentene, in particular the present invention relates to the conversion of synthesis gas to di-isobutene and pentene and/or di-pentene.
The process for dimerization of propylene into methyl-4-pentene-1 uses the catalyst disclosed hereabove.
1-(4-Methoxyphenyl)-1-penten-3-one (alpha-Methylanisylideneacetone), when used as a fragrance ingredient
Also disclosed is a method for producing 4-methyl-1-pentene using such a catalyst.
The invention relates to a method for isomerization of pentene nitrile in an educt flow, wherein isomerization is performed on a homogeneously dissolved catalyst.
Requêtes fréquentes français :1-200, -1k, -2k, -3k, -4k, -5k, -7k, -10k, -20k, -40k, -100k, -200k, -500k, -1000k,
Requêtes fréquentes anglais :1-200, -1k, -2k, -3k, -4k, -5k, -7k, -10k, -20k, -40k, -100k, -200k, -500k, -1000k,
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