Foamed slabstock

ICI has also developed a PU recycling process for all MDI flexible PU foam slabstock. With their parmer Vergier, they have established a UK 1 million pilot plant facility, aiming to move to commercial scale 5,000 tpa operation in 3 to 5 years after 1998. However, no information is available at this stage on plant at a commercial scale (131). 

Preparation. Urethane-modified isocyanurate foams are mostly fH epared by the one-shot process based on the jH inciple discussed previously in the urethane modification section. The semi-prepolymer process is used only in limited cases because of viscosity problems. This section describes several examples of formulations for producing block foams, slabstock foams, laminate foams, and spray foams. 

There are two main types of flexible foam slabstock polyester-based foams, used for technical and high elongation grade laminates or textiles and polyether-based foams used for upholstery, HR, and flame retardance. By varying the type of polyester or polyether, the length of the polyol chain, the structure and size of the hard segment, and the amount of blowing, the foam can be tailored to meet the required specifications. ... 

Chem. Descrip. 2,2 -Dimorpholinodiethyl ether Uses Blowing catalyst tor PU flexible and rigid team, one-component foam, slabstock foams, coatings, adhesives Properties Sp.gr. 1.1 (20/20 C) t.p. -28 C b.p. 309 C flash pt. (TCC) 295 F... 

CH3)2NCH2CH20CH2CH2N(CH3CH2CH20H Uses Catalyst for PU foam, slabstock Trade Name Synonyms Jeffcat ZF-10 t[Huntsman http //www.huntsman.com] N,N,N-Trimethyl-2-hydroxypropyl ammonium 2-ethylhexanoate Empirical C14H31NO3 Properties M.w. 261.41 Uses Catalyst for PU foams... 

Bis-hexamethylenetriamine t-Butyl toluenediamine Dibutyltin bisisooctyl thioqlycolate JM,N-Diethylcyclohexylamine N,N-Dimethylethylamine Imidazole Lead 2-ethylhexoate N-Methyldicyclohexylamine PEG-2 C13-15 alkyl amine N,N, N",N"-Pentamethyldiethylenetriamine 1,3-Pentanediamine Phenylmercuric propionate Potassium 2-ethylhexanoate N,N,N, N -Tetramethyl-1,3-propanediamine catalyst, PU coatings Dibutyltin diacetate Triethylene diamine catalyst, PU elastomers Diazabicycloundecene catalyst, PU flexible foams Dicoco methylamine catalyst, PU foam slabstock Dimethylethanolamine catalyst, PU foams... 

Pentaerythrityi triacryiate crosslinking agent, finishes fast-curing Melamine-formaldehyde resin, isobutyiated crosslinking agent, flexible PU foam slabstock Diethanolamine... 

A U.S. EPA study in 1993 estimated the U.S. production of flexible polyurethane foam slabstock at 600,000 tons. The 25 companies that manufactured foam at the time were estimated to emit 15,000 tons of methylene chloride (CH2CI2) into the atmosphere. This amounted to 10% of the total emission of this hazardous air pollutant (HAP) into the air nationwide. The volatile emissions from the industry (estimated by industry sources in 1992) is sununarized in Table 1.5 (note no process water is used in flexible polyurethane manufactnie, so only air emissions are considered.)... 

Suprasec VM85 HF Suprasec VM90 HF 2-8-3-1 High functionality polymeric MDI. Rigid polyurethane and isocyanurate foams. Continuous lamination of rigid foam and rigid foam slabstock. 

Some of the flexible polyurethane foam slabstock equipment manufacturers are as follows Admiral Equipment Corporation, Akron, Ohio, USA Karl Henneke Maschinen-fabrik, Birlinghoven, West Germany Laader Berg, Aalesund, Norway Martin Sweets Co Inc, Louisville 12,... 

Flexible, Semi-flexible, and rigid foam Slabstock/Bunstook Insulation Flexible, integral skin, HR foam, coatings and adhesives... 

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