Amine-promoted, peroxide-cured polyester composition
AssigneeRule Industries, Inc.
InventorPeter A. Rubel
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Abstract
A novel amine-promoted, peroxide-cured polyester composition which can be utilized at low temperatures, e.g. 25.degree. to 50.degree. F., but which will not react at an excessively rapid rate should the amine be added to the curing agent before the curing agent is mixed with the polyester. The preferred system comprises, in addition to the polyester resin and peroxide curing agent, (a) an organoalkanolamine and (b) a hydrated inorganic filler on which the amine is distributed.
Claims18
In a process for amine-promoting a peroxide cure of a polyester laminating resin composition, the improvement which comprises adding to said composition an effective quantity of amine promoter having a vapor pressure of less than 1 mm mercury at 20.degree. C. while maintaining said amine promoter in intimate contact on a quantity of hydrated filler, said quantity of filler being from 7 to 50 times the weight of said amine promoter.
As a composition of matter useful is promoting the cure of polyester resin, a quantity of water-insoluble hydrated powder of the type that will lose its water of hydration between 100.degree. C. and 300.degree. C. with, intimately distributed on said powder, an effective quantity of amine promoting agent.
A system useful in the low temperature, amine-promoted, peroxide cure of polyester resins said system consisting essentially of the following components:
- (1) A peroxide-curable polyester laminating resin composition
- (2) An effective quantity of peroxide-curing agent
- (3) An effective quantity of a amine promoter composition comprising amine which has a vapor pressure of less than 1 mm of mercury at 20.degree. C. immobilized on the surface of a metal hydrate powder.
Dependencies are inferred from the claim text.