摘要:
Compositions curable by heat comprise a halogen-containing vinyl polymer, a plasticizer therefor in which the polymer is insoluble at room temperature, an epoxide resin having an epoxide equivalency greater than one and as curing agent a condensation product containing no primary amino groups and made by condensing an amine containing two or more primary amino groups with a volatile ketone, the composition also comprising sufficient moisture to be curable by heat. Specified halogen-containing polymers are polyvinyl chloride; copolymers of vinyl chloride with vinyl acetate, ethylene, acrylic esters, acrylonitrile, maleic anhydride and vinylidene chloride; and chlorinated polyvinyl chloride, partially hydrolysed polyvinyl acetates and acetals. Specified plasticizers are phthalates, sebacates, phosphates, epoxidised unsaturated fatty acids and alcohols and esters thereof. Specified epoxide resins are polyglycidyl ethers of polyhydric compounds, e.g. butane-1, 4-diol, glycerol, N-phenyldiethanolamine, resorcinol, 2, 2-bis (4-hydroxyphenyl) propane and phenol-aldehyde condensates; polyglycidyl esters of polycarboxylic acids, e.g. phthalic acid; aminopolyepoxides obtained by dehydrohalogenating reaction products of epihalohydrins with amines, e.g. n-butylamine, aniline and 4,41-di(monomethylamino)-diphenylmethane; and epoxidised unsaturated polyolefins. The curing agent may be derived from acetone, methyl ethyl ketone, methyl isopropyl ketone, diisopropyl ketone, methyl isobutyl ketone or methyl cyclohexanone, and an alkylene diamine or polyalkylene polyamine, bis(4-amino -3- methylcyclohexyl) methane, 3-(3-aminocyclohexyl) n-propylamine, bis(4-aminophenyl) methane, bis(4-aminophenyl) sulphone or m-phenylenediamine. The compositions may also contain fillers, reinforcements, pigments and dyes, and water liberating materials such as hydrated calcium sulphate. The compositions may be used for coating metals, glass, wood, ceramics and polyester and polyamide textiles, and as adhesives. Examples describe compositions comprising polyvinyl chloride, adipate plasticizer, polyethylene oxide, epoxidised soya bean oil, organotin stabilizer and (1) the reaction products of epichlorhydrin and 2,2-bis(4-hydroxyphenyl) propane and of diethylene triamine and methyl isobutyl ketone; (2) the reaction products of epichlorhydrin and N-phenyldiethanolamine and of diethylene triamine and methyl isobutyl ketone; and (3) a vinyl chloride/vinyl acetate/maleic anhydride terpolymer, silica and reaction products of epichlorhydrin and 2,2-bis(4-hydroxyphenyl) propane and of ethylene diamine and methyl isobutyl ketone. Specification 777,052 is referred to.ALSO:Substrates such as metals, e.g. mild steel and aluminium, glass, wood and ceramics may be coated with heat curable compositions comprising a halogen-containing vinyl polymer, a plasticizer therefor in which the polymer is insoluble at room temperature, an epoxide resin having an epoxide equivalency greater than one and as curing agent a condensation product containing no primary amino groups and made by condensing an amine containing two or more primary amino groups with a volatile ketone, the composition also comprising sufficient moisture to be curable by heat. Specified polymers are polymers and copolymers of vinyl chloride, and chlorinated polyvinyl chloride, partially hydrolysed polyvinyl acetates and acetals. Specified plasticizers are phthalates, sebacates, phosphates, epoxidized unsaturated fatty acids and alcohols and esters thereof. Specified epoxide resins are polyglycidyl ethers of polyhydric compounds, e.g. butane-1,4-diol, glycerol, N-phenyldiethanolamine, resorcinol, 2,2-bis(4-hydroxyphenyl) propane and phenol-aldehyde condensates; polyglycidyl esters of polycarboxylic acids, e.g. phthalic acid; aminopolyepoxides obtained by dehydrohalogenating reaction products of epihalohydrins with amines, e.g. n-butylamine, aniline and 4,41-di(monomethylamino)-diphenylmethane; and epoxidized unsaturated polyolefins. The curing agent may be derived from acetone, methyl ethyl ketone, methyl isopropyl ketone, diisopropyl ketone, methyl isobutyl ketone or methyl cyclohexanone, and an alkylene diamine, polyalkylene polyamine, bis(4-amino-3-methylcyclohexyl) methane, 3(3-aminocyclohexyl)n-propylamine, bis(4-aminophenyl) methane, bis(4-aminophenyl) sulphone or m-phenylene diamine. The compositions may also comprise fillers, pigments, dyes, and water liberating materials such as hydrated calcium sulphate. Examples describe the coating of shot blasted mild steel panels with compositions comprising polyvinyl chloride, adipate plasticizer, polyethylene oxide, organotin stabilizer, epoxidized soya bean oil, a condensate of diethylene triamine and methyl isobutyl ketone and (1) a condensate of epichlorhydrin and 2,2-bis(4-hydroxyphenyl) propane and (2) a condensate of epichlorhydrin and N-phenyl diethanolamine. Specification 777,052 is referred to.
摘要:
The present invention generally relates to various polymer solid electrolyte materials suitable for various electrochemical devices and methods for making or using the same. Certain embodiments of the invention are generally directed to solid electrolytes having relatively high ionic conductivity and/or other mechanical or electrical properties, e.g., tensile strength or decomposition potential. Certain aspects include a polymer, a plasticizer, and an electrolyte salt. In some cases, the polymer may exhibit certain structures such as:
where R1 can be one of the following groups:
where n is an integer between 1 and 10000, m is a integer between 1 and 5000, and R2 to R6 are each independently selected from the group consisting of hydrogen, methyl, ethyl, phenyl, benzyl, acryl, epoxy ethyl, isocyanate, cyclic carbonate, lactone, lactam, and vinyl; and * indicates a point of attachment.
摘要:
The present disclosure provides an adduct comprising the reaction product of a residual epoxy oligomer product and a reactive compound having at least two reactive hydrogens where the residual epoxy oligomer product was obtained from a process for producing an aromatic epoxy resin. The adduct may be used in a variety of ways, such as a curing agent in a curable system containing a curable resin.
摘要:
Provided are a sealant that is affixed to an electronic device provided on an electronic substrate or the like or to an exposed metal portion to protect the electronic device or other adherend from moisture and the like and a sealant composition before being cured to become the sealant. The sealant and the sealant composition have form stability, flexibility, and adhesiveness.The sealant composition contains, as essential components, a cured epoxy resin having a flexible backbone, a monofunctional (meth)acrylic ester monomer, a photo-radical polymerization initiator, and a styrene-based elastomer. The monofunctional (meth)acrylic ester monomer is curable by irradiation with light. The sealant composition has form stability and also has a flexibility such that a load measured when the sealant composition having a thickness of 1 mm is compressed by 25% with a cylindrical probe having a bottom end with a diameter of 10 mm is 0.19 to 3.2 N. The sealant is obtained by photocuring the sealant composition.
摘要:
The present invention provides a two-part mechano-responsive composition, comprising: Part I: a tetra-glycidyl amine multifunctional epoxy resin represented by the general formula (I); and Part II: a polythiol and an amine. The cured composition has a mechano-responsive property without adding any dyes or luminescence agents, and by subjected to mechanical stimuli, the cured composition changes its colour, and the colour is in the visible spectrum range, which can be easily checked with naked eyes; and the colour change is reversible.
摘要:
The invention relates to compositions containing at least one epoxide adduct A that comprises an average of more than one epoxide group per molecule, at least one polymer B of formula (I), at least one thixotropic agent C based on a urea derivative in a non-diffusing carrier material, and at least one hardener D for epoxy resins, which is activated at an increased temperature. Said composition is used especially as an adhesive and is provided with an extraordinarily high impact peel working value, especially at low temperatures. The invention further relates to epoxide group-terminal impact strength modifiers of formula (I), which significantly increase the impact resistance in epoxy resin compositions, particularly two-component epoxy resin compositions.