Solutions of each carboxylic acid
were added to the soil at concentrations to achieve final concentrations of 0.
Since no chloride ions were detected in the test solutions' (below blank), the corrosion of the steel coupon (required for copper plating to take place) was being performed by the carboxylic acid
in the presence of water.
The low molecular weight epoxide used to react with free carboxylic acid
is glycidyl-4-nonyl-phenyl-ether from Aldrich (boiling point = 312[degrees]C).
The data reveal that most of the acid resides in the aqueous phase and that different concentrations of carboxylic acid
in the aqueous phase have a larger influence on the wet scrub resistance and the viscosity of the latexes (Table 3).
It also strengthens our position as the leading global manufacturer of carboxylic acids
and the one with the broadest portfolio of these products," said Miguel Mantas, Member of Oxea's Executive Board and responsible for marketing and sales.
Hydrogenated carboxylated nitrile butadiene robber (HXNBR) is formed by polymerizing a conjugated diene such as 1,3-butadiene, a nitrile such as acrylonitrile or methacrylonitrile and an unsaturated carboxylic acid
such as acrylic or methacrylic acid to produce a polymer with a C=C backbone and a random or statistical monomer distribution.
The building blocks of the network, tetraalkoxysilanes, react together in a solution of carboxylic acid
4,254,129 (the '129 patent) which covers the carboxylic acid
metabolite of terfenadine as well as the use of the product as an antihistamine.
Equistar Chemicals has obtained a patent for an adhesive composition comprised of (a) 2% to 30% weight of a modified polyolefin comprised of a polymer grafted with carboxylic acids
, carboxylic acid
anhydrides or derivatives thereof, the polymer being selected from a group consisting of (i) ethylene homopolymers, (ii) copolymers of ethylene with propylene, 1-butene, 4-methyl 1-pentene, 1-hexene, or 1-octene, (iii) propylene homopolymers, (iv) copolymers of propylene with ethylene or C4-C10-olefins, and (v) mixtures of (i)-(iv); (b) 0.
Therban XT (HXNBR) introduces a carboxylic acid
group into HNBR polymer structure that is expected to further improve HNBR's superior mechanical strength, adhesion properties and abrasion resistance, according to the company.
patent: 6,087,453 Issued: July 11, 2000 Inventor: Koichi Nishimura Assigned: Nippon Zeon Keywords: A butadiene acrylonitrile-unsaturated dicarboxylic acid dialkyl ester copolymer, an [Alpha],[Beta]-ethylenically unsaturated carboxylic acid
, an organic peroxide vulcanizing agent
His device consists of a halogenated polymer (such as Teflon) coated by a mixture of a strong and a weak acid, typically sulfonic and carboxylic acid