Abstract:
An object of the present invention is to provide a composition which provides a hardened product exhibiting superior electrical insulating properties, adhesiveness, or the like at the time of hardening the composition. The present invention provides a composition comprising a compound having a group represented by the general formula (I): (in the formula, R 1 , R 2 , and R 3 are identical or different, and represent a hydrogen atom or a lower alkyl group; X, Y, and Z are identical or different, and represent an oxygen atom or a sulfur atom, and at least two of X, Y, and Z represent a sulfur atom), and a compound having two or more acidic groups.
Abstract:
A method of forming a barrier coating on a lead surface comprises treating the surface with an aqueous solution of a film forming ionomer having -COO- or -SO¿3?- groups which is such that on drying the ionomer is converted to a water insoluble form, and drying said surface to form the coating thereon. The method is particularly useful for coating the inside surface of lead service pipes, e.g. water pipes.
Abstract:
A composition comprising a polymer or compound containing at least one five-membered dithiocarbonate group of general formula (I) (wherein R?1, R2 and R3¿ are the same or different and each represents hydrogen or lower alkyl), a nucleophilic reagent and a metal compound.
Abstract:
Die Erfindung betrifft ein neues Einbrennüberzugsmittel, das bei niedrigen Temperaturen ohne Abspaltung flüchtiger Verbindungen eingebrannt werden kann und gleichzeitig bei Raumtemperatur eine gute Lagerstabilität besitzt.
Abstract translation:含有羟基官能的粘合剂(A),具有至少两个6-环环状碳酸酯基团的交联剂(B)和(C),IA,IB,IIA,IIB族的羧酸酯的新型单组分烘烤搪瓷, IVA和/或IVB金属用于催化。 炉具涂料包括:(A),羟基官能的聚丙烯酸酯,聚酯,聚碳酸酯,聚醚,聚氨酯,聚二烯树脂,环氧树脂或它们与至少两个羟基(OH)基团和没有氨基的混合物,其中 能够与组分(B)反应;(B)是基于具有至少两个6-环环状碳酸酯基团/分子的化合物的交联剂。 (C)基于含有式R-COO的羧基的IA,IB,IIA,IIB,IVA和/或IVB族金属的羧酸盐,和(碳酸酯基)的当量比的催化剂混合物: (OH基)= 0.5:1-2.0:1。 R =任选取代的直链或支链1-20C烷基
Abstract:
Polyesterdiols having low viscosities of less than 3500 cps, high content of non-volatile matter in excess of 96 wt.%, and narrow molecular weight distribution of less than about 1.4 are prepared by esterification of one or more aliphatic dicarboxylic acids or ester derivatives thereof using at least at 1.5 molar excess of one or more aliphatic diols until an acid number of less than 20 is achieved, and stripping excess diol from the polyesterdiol reaction product. Where esterification catalyst is used, catalyst is substantially removed prior to stripping excess unreacted diol from polyesterdiol reaction product. The polyesterdiols so produced are useful as (i) curable components in thermosettable resin compositions, particularly compositions essentially free of volatile organic solvent and also containing a cross-linking agent and a reactive hardening agent; and/or (ii) useful as coatings, paints and adhesives, providing coatings with very low content of volatile organic compounds.
Abstract:
Water-based coating compositions comprise an aqueous solution, emulsion, or dispersion of (a) a water-soluble or water-dispersible polymer or oligomer having at least one anionic moiety which is capable of reacting with an oxazoline or oxazine moiety; (b) a water-soluble or water-dispersible polymer or oligomer having at least one oxazoline or oxazine moiety; and (c) colloidal silica; at least one of the components (a) and (b) further comprising at least one fluoroaliphatic moiety. The compositions can be used to form hard coatings having low surface energy and high abrasion resistance.
Abstract:
A coating composition suitable for use in precoated metal sheets comprising: (A) a hydroxyl group-containing film-forming resin having a hydroxyl number of from 5 to 100; (B) 0.5 to 10 parts by weight as solids of a first curing agent per 100 parts by weight as solids of said film-forming resin (A), said first curing agent having a solubility parameter lower than the solubility parameter of said film-forming resin (A) by at least 0.5; (C) 10 to 50 parts by weight as solids of a second curing agent per 100 parts by weight as solids of said film-forming resin (A), said second curing agent having a solubility parameter not lower than by 0.5 or higher than the solubility parameter of said film-forming resin (A); (D) 0.1 to 2.0 parts by weight of an acid catalyst per 100 parts by weight as solids of said film-forming resin (A) for promoting the reaction between said film-forming resin (A) and said first curing agent (B); and (E) an amount in excess for neutralizing said acid catalyst (D) of a volatile amine having a boiling point not lower than 40 °C but lower than the baking temperature of the composition.