摘要:
A curable coating composition comprises a composition containing an epoxy resin and a poly(meth)arylate wherein an adhesive improving amount of a metal di(meth)acrylate such as zinc diacrylate and a polyamine curing agent is added.
摘要:
Curable and cured compositions having improved substrate adhesion, a method of providing a coating composition with improved substrate adhesion, a method of adhering a coating composition to a substrate, a method of providing a substrate with an adherent cured coating or film, and substrates with coatings or films formed from a cured composition are provided, wherein the coating composition comprises a fatty acid modified alkyd resin, a metal salt of an .alpha., .beta.-ethylenically unsaturated carboxylic acid and, optionally, an initiator and/or metal salt drying agent.
摘要:
Thermoplastic elastomers made by copolymerizing macromolecular monomers with alkoxyalkyl acrylates serve as binders for solid propellants which binders have high burn rates and increased insensitivity over conventional binders. The preferred alkoxyalkyl acrylate is methoxyethyl acrylate.
摘要:
Curable and cured water based compositions having improved substrate adhesion, methods for their preparation and uses are provided. The coating and adhesive compositions comprise a water soluble compound, a metal salt of an .alpha., .beta.-ethylenically unsaturated compound, and a cure initiator. The compositions of the present invention are useful as substrate coating and adhesive compositions.
摘要:
Free radical-curable halogenated polyethylene polymer compositions, which are crosslinked with the aid of a crosslinking monomer selected from the group consisting of calcium diacrylate and calcium dimethacylate coagents and, optionally an alkyl aminoalkyl phenol vulcanization inhibitor, are provided. The compositions of the invention yield cured rubber articles with markedly improved tensile strength and scorch resistance. Processes for producing a cured rubber article from the disclosed free radical-curable elastomeric compositions and cured compositions prepared from such curable compositions are also provided.
摘要:
The residual level of N-vinylcarbazole in polyvinylcarbazole has been reduced to an amount less than 25 ppm by treatment of a solution of the polyvinylcarbazole with a strong acid. The polymer can be recovered in pure form by precipitation of the polymer from solution with a non-solvent.
摘要:
A method of making MAn salt in particulate form having improved dispersibility in elastomers, wherein M is a metal selected from zinc, calcium, and magnesium or other metals, A is acrylate or methacrylate, and n is 1-4, comprising contacting said salt with a solution of polymer in organic solvent, and then removing the solvent, thereby encapsulating said salt with said polymer. The resultant encapsulated metal acrylate salts, methods of use, and the resultant elastomers are also disclosed. The salts are especially useful as scorch retarders used in the processing of elastomers in a two roll mill or Banbury type internal mixer.
摘要:
A method for improving the substrate adhesion properties of polymer concrete composition including a substantially non-aqueous slurry of (i) an aggregate component, (ii) a monomer binder component in an amount effective to bind the aggregate component, upon curing, into a polymer concrete, and (iii) a polymerization catalyst. The method involves adding a crosslinking-effective amount of a metal salt of an .alpha., .beta.-ethylenically unsaturated carboxylic acid to the polymer concrete.
摘要:
Thermoplastic elastomers made by copolymerizing macromolecular monomers with alkoxyalkyl acrylates in the presence of energetic materials serve as solid propellants which have high burn rates and increased insensitivity over conventional propellants. The copolymers are prepared in situ by subjecting the mixture of monomers and energetic materials to electron beam radiation.
摘要:
The process of heating a resin composition which exhibits reversible crosslinking behavior prepared by copolymerizing an alpha, beta ethylenically unsaturated monomer with an oil soluble metal salt prepared by reacting (A) a metal compound with (B) an acid functional compound which is a reaction product of (1) an alpha-beta ethylenically unsaturated hydroxy compound and (2) a carboxylic polyacid, anhydride, sulfur oxide, or phosphorus oxide so as to cause reversible crosslinking is disclosed.