Laminated pipe insulation product and method of producing same

Details Laminated pipe insulation product and method of producing same Laminated pipe insulation product and method of producing same

B - Operations, Transporting

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B

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B32B 17/04 (2006.01) B29C 43/52 (2006.01) F16L 59/02 (2006.01)

Patent

CA 1218006

Abstract of the Disclosure A method of producing laminated or sandwich type pipe insulation comprising compressing and reducing an outer fiberglass layer together with one or more mineral wool layers, both originally containing a resin filler or adhesive. The adhesive is selected from phenol or urea-type resins and more specially from phenol formal- dehyde and urea formaldehyde resins. Heat and pressure are utilized to manufacture the laminate and the thick- ness of the fiberglass is reduced to 1/10 to 1/20 of its original size during the manufacturing. A temperature of 100-500°F is utilized and an exopressure of 50-1,000 psi is used. Particular pipe insulations produced are the specialty ells (L's) and tees (T's) made by the above process.

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