Articles utilizing acetal copolymer bonding resins

Abstract From the Canadian patent

There are provided new articles comprising elements having surfaces bonded together with a bonding resin which is an elastomeric copolymer of about 15 to 45 mol % preferably, about 25 to 35 mol % trioxane about 55 to 85 mol %, preferably, about 65 to 75 mol % of 1,3-dioxolane said mol percents based, on the total of trioxane and 1,3-dioxolane and about 0.005 to, 0.15 wt.%, preferably about 0.05 to 0.12 wt.% of 1,4-butanediol diglycidyl ether or butadient diepoxide as a bifunctional monomer, based on the total weight of copolymer. Preferably at, least one of said surfaces, and more preferably at least two of said surfaces bonded to each other are of a crystalline acetal polymer comprising at …