alkyl group


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Related to alkyl group: alkylation
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Noun1.alkyl group - any of a series of univalent groups of the general formula CnH2n+1 derived from aliphatic hydrocarbons
chemical group, radical, group - (chemistry) two or more atoms bound together as a single unit and forming part of a molecule
ethyl, ethyl group, ethyl radical - the univalent hydrocarbon radical C2H5 derived from ethane by the removal of one hydrogen atom
methyl, methyl group, methyl radical - the univalent radical CH3- derived from methane
References in periodicals archive ?
The PDMS and fluorinated alkyl group are tethered onto silica nanoparticle to reduce the surface energy of silica particles in order to facilitate the migration of silica particles toward air-coating interfaces during coating drying process (29).
7,511,006 B2; The Clorox Company has patented a cleaning composition that is comprised of, by weight, 0.1-5.0% of a C8 to C10 alkylpolyglucoside wherein the alkyl group is substantially C8 alkyl, substantially C10 alkyl, or a mixture of substantially C8 and C10 alkyl; 0.5-5.0% of a C2 to C4 alcohol or combination of C2 to C4 alcohols; 0.05-2.0% of glycerol; and optionally dyes, builders, fatty acids, fragrances, colorants, antifoaming agent, water-soluble organic acid and preservatives.
The salt of organic sulfonic acid comprises one or more selected from the group consisting of alkali salts of alkyl sulfonic acid with alkyl group with 6-22 carbon atoms, alkali salts of alkyl aryl sulfonic acid with alkyl group with 2-22 carbon atoms and alkali salts of sulfo fatty acid ester with alkyl group with 2-22 carbon atoms.
The electron donating nature of bigger pendant alkyl group and the distribution of electron in polymer chain can also be inferred from the spectra.
Cabot Corporation has received a patent for a pigment composition comprised of at least one pigment and at least one dispersant composition comprised of at least one anionic surfactant and at least one polymer comprised of at least one salt of a carboxylic acid group, wherein the pigment is a modified carbon product comprised of a carbon product having attached at least one organic group, and wherein the organic group is comprised of at least one aromatic group or at least one C1-C12 alkyl group and further it is comprised of at least one anionic group or salts thereof.
Comprising 50-80% is a composition selected from the group consisting of a random copolymer of propylene with 7-40% by weight of a CH2_CHR alkene, where R is an alkyl group containing from 2 to 6 carbon atoms, and from 0.5 to 6% by weight of ethylene as additional comonomer; a composition comprising (a) at least 20% by weight B1, and (b) B2, a random copolymer of propylene with up to 10% by weight of ethylene a composition comprising (a) at least 20% by weight B1; and (b) a propylene homopolymer; and (iv) a composition comprising (a) at least 20% by weight B1; (b) B2, and (c) a propylene homopolymer.
In addition, a signal assigned to a silicon atom in which one bond is connected to the alkyl group, [(Si--O).sub.3][Si--R] (T peak), is observed at -79.9 ppm for V20T80 and at -65.8 ppm for E20T80.
BASF Corporation has been granted a patent for a method of making a curable coating composition containing a carbamate functional reactive additive, providing a compound comprising at least one epoxy group and at least one branched alkyl group of from five to 30 carbon atoms, reacting the compound with carbon dioxide so as to produce a carbonate functional compound, reacting said carbonate functional compound with ammonia so as to produce a carbamate functional reactive additive, and incorporating the carbamate functional reactive additive into a curable coating composition.
US 6,303,801 B1: Researchers for Sumitomo Chemical Company, Ltd., Osaka, Japan, have patented a process for producing an alkyl-substituted hydroquinone with a compound including hydrogen atoms and/or a straight or branched chain alkyl group.
Key statement: Tire belt comprising a rubber composition based on at least one isoprene elastomer, a reinforcing filler, a crosslinking system and an antioxidant agent, characterized in that said antioxidant agent comprises a 4,4'-bis(alkylamino)triphenylamine corresponding to the formula in which [R.sup.1] and [R.sup.2], which are identical or different, each represent a linear or branched alkyl group having from 1 to 12 carbon atoms or a cycloalkyl group having from 5 to 8 carbon atoms.
has received a patent for a pigment dispersing resin which is a copolymer of sulfonic group-containing polymerizable unsaturated monomer; polyoxyalkylene chain-containing nonionic polymerizable unsaturated monomer; (meth)acrylic acid ester type polymerizable monomer having two tertiary alkyl groups per molecule and/or (meth)acrylic acid ester type polymerizable monomer having one tertiary alkyl group and one secondary hydroxyl group per molecule; and other ethylenically unsaturated monomer and where the copolymer is obtained by the copolymerization of monomers at the following proportion on the basis of the total weight of monomers.