Abstract: A process in which a blowing agent dispersion medium is used for producing poly(vinyl chloride) that is particularly well suited for use in insulation covers and the insulation covers made from the resultant poly(vinyl chloride).

Abstract: A laminate insulating jacketing material having a layer of poly(vinyl chloride) bonded to a layer of aluminum foil having superior insulation jacketing properties, to be applied over pipe, tank or equipment insulation.

Abstract: A rigid or semi-rigid cover for installation over an insulated pipe fitting is provided. The cover is pre-cut in the geometric design that enables it to conform to the shape of the pipe fitting when installed.

Abstract: A one piece pipefitting cover for insulated Y-shaped joints, including strainers or lateral 45.degree.-Y fittings, made of a flexible material, i.e., polyvinyl chloride, comprising a relatively flat base symmetrical about its center axis having oppositely facing lateral members and semi-circular edge members along its sides wherein when rotated about its center axis forms a cover conforming to the shape of the insulated fitting.

Abstract: A process in which a blowing agent dispersion is used for producing poly(vinyl chloride) that is particularly well suited for use in insulation covers and the insulation covers made from the resultant poly(vinyl chloride).

Abstract: Disclosed is a pipe fitting cover for angled pipe joints formed of a single integral structure in which the opposed ends of the structure are secured about the angled pipe joint by a single securing means in the central portion of the topmost opposed end and wherein the top end may have an arcuate edge to provide a smoother overlap of the top end and bottom end. Also disclosed is a novel securing means for securing the cover about the angled pipe joint and a method of securing the cover about the angled pipe joint.

Abstract: There is disclosed fiberglass insulation for use in insulating a pipe elbow, the insulation comprises a continuous strand of a plurality of removably connected fiberglass wraps, each of said wraps comprises a pair of opposed ends having essentially the same width and a mid-section between the opposed ends having opposed arcuate sides wherein the width of the mid-section measured at any point along the opposed arcuate sides is greater than the width of the opposed ends. Also included as part of the present invention are the individual wraps which comprise the continuous strand of fiberglass insulation.