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

1981-10-27

1984-07-10

Hall, James R.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

264113, 428 36, 138149, B32B 702

Patent

active

044593333

ABSTRACT:
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 formaldehyde and urea formaldehyde resins. Heat and pressure are utilized to manufacture the laminate and the thickness of the fiberglass is reduced to 1/10 to 1/20 of its original size during the manufacturing. A temperature of 100.degree.-500.degree. 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.

REFERENCES:
patent: 4201247 (1980-05-01), Shannon

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