Prometheus Developments

A Salesman’s Guide to the PRP and MIPS,

Or Phosphorus Rich Polymers  and Mixed Intumescent Salts to give them their full names.

(technical visitors should click here)

Here’s the sausage

PRP oligomers are liquid short chain orthophosphate esters of carbonific polyols. MIPS are a precipitated salt of PRP oligomers.

Here’s the sizzle

PRP and MIPS are flame retardants that activate at temperatures lower than most flame retardants and do so with very little smoke emission

How we make the Sausage

“Laws are like sausages, it is better not to see them being made”.

Otto von Bismarck

However, what we do is integrate the functionalities of a conventional intumescent system at the molecular scale so the activation to an insulating char occurs very quickly from the homogenous phase. The process is quick, cheap, very efficient and uses commodity materials.

Of course you still have to cook the sausage.

PRP and MIPS can be used as a flame retardant and fire protective coating for many applications. From clear varnishes, timber impregnation, fire protection of polyolefins, fire resistant polyurethane, and structural steel protection. Many formulations are listed in this web site. Ask us how to cook the sausage.

There are lots of different sausages.

Garlic and onion sausage does not work well with bacon and eggs, so there are many different PRP and MIPS for different applications. Here is a summary.

PRP Form(s) 1 makes fire retardant and fire protective intumescent varnishes and paints, rapid cure intumescent for structural steel, fire resistant binders for particle board, fire resistant impregnation for wood

PRP Form(s) 2 cold cures phenolic resins to enhanced fire stability and interesting foams

PRP Form 4 gives flame retardant polyurethane foams, elastomers and paints

MIPS aqueous dispersion produce intumescent (including an external epoxy) paints and excellent sealants

MIPS powder can be used to make offshore fire protective, and flame retardant thermoplastics and thermosets.