Process Economics Program Report 26A
Published: Jan-77
This supplement to Process Economics Program Report 26,
issued in July 1967, reviews the commercial and technical developments in unsaturated
polyester resins that occurred between mid-1967 and early 1976. It presents
the process economics of producing a general purpose unsaturated polyester resin
by a batch fusion process and a batch solvent process, each using glycol; a
batch process and a continuous process, each using propylene oxide; and a continuous
process using glycol. The industry status is updated and the recent developments
in the formulation and preparation of low shrink/low profile resins, water-extended
resins, flame- retardant resins, heat-resistant resins, and viscosity controls
for unsaturated polyester resins are reviewed.
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