摘要:
A laminated fiberglass reinforced polyester (FRP) substrate made using a primerless adhesive and the process of making the laminated FRP substrate. The primerless adhesive combines a prepolymer, an aliphatic polyisocyanate and a curative.
摘要:
A polyester polyurethane compound is formed by reacting trans-1,4-cyclohexanediisocyanate with a mixed polyester. The mixed polyester can be the copolymerization condensation product of an aliphatic dicarboxylic acid or an aromatic dicarboxylic acid, or a separate physical blend thereof reacted with a polyol. The polyurethane can also contain small amounts of non-extractable epoxies and carbodiimides. The urethane has very good hydrolytic stability in comparison with prior art polyurethane systems and also very good fuel resistance and anti-icing resistance. A preferred area of use is an aircraft fuel tanks and anti-icing components.
摘要:
The present invention is directed to a composite laminated article including a resin coated base plate and a layer of ordered photocurable composition on said resin coated plate and when the liquid photocurable composition is cured forms a polymeric printing plate. The article includes a sheet of aluminum-containing metal having a coating of a cured mixture of a specific vinyl resin and an epoxy resin and preferably a small amount of carbon black and silica and a top coat or layer of photocured ordered polyurethane containing acrylate or methacrylate radicals.
摘要:
This invention is a method of making a laminated untreated fiberglass reinforced polyester substrates and a cured polyureaurethane adhesive composition. The prepolymer component of the adhesive is the reaction product of a slowly reacting polyisocyanate and a polyol.
摘要:
A curative for a two part structural primerless urethane adhesive for fiberglass reinforced polyester substrates curable at 240.degree. F. (116.degree. C.).
摘要:
A primer composition for use on fiberglass reinforced polyester substrates combining an ether type low molecular weight epoxy resin, an amino functional silane and halogenated hydrocarbon solvent.
摘要:
There is disclosed a method for the treatment of yarn which comprises applying an aqueous emulsion of a polyester/epoxy adhesive to the yarn. The polyester/epoxy adhesive comprises a water emulsifiable polyester capped with an isocyanate group and an epoxide which is dispersed in water to fYorm an emulsion.
摘要:
A method for preparing a polyurethane suitable for lining fuel tanks, said polyurethane having good, fuel resistance and improved hydrolysis resistance by using a ketimine of an aliphatic diamine as a curing agent in a three-component system composed of a prepolymer solution, a cement solution and a curing agent solution.
摘要:
A polyurethane prepared by reacting specifically identified substituted aromatic diamines with isocyanate-terminated prepolymer. Prepolymer is prepared by reacting polyisocyanate with polymeric polyol. Diamines are required to be selected from specified substituted butylbenzoates, benzonitriles or benzoates. The diamine curative is taught to enhance the processing of the prepolymer/diamine mixture for commercial application.
摘要:
The invention relates to substituted aromatic diamines and polyurethanes cured thereby. The diamines are individually selected from 3,5-diamino-4-tert-alkylbenzoates, 3,5-diamino-4-tert-alkylbenzonitriles and alkylene bis(3-amino-4-tert-alkylbenzoate).