INDEX neoprene

ASTM D 3675 Surface Flammability of Flexible Cellular Materials Using a Radiant Heat Energy Source This method may be used on cellular elastomeric materials such as flexible polyurethane foam and neoprene foam. It employs a radiant panel heat source consisting of a 300 by 460-nun (12 by 18 in.) panel in front of which an inclined 150 by 460-m (6 by 18 in.) specimen of the material is placed. The orientation of the specimen is such that ignition is forced near its upper edge, and the flame front progresses downward. Factors derived from the rate of progress of the flame front and heat liberated by the material under test are combined to provide a flame spread index. The method was developed to test cellular elastomeric materials which could not be tested by ASTM E 162. 

CAS 21645-51-2 EINECS/ELINCS 244-492-7 Uses Smoke suppressant, flame retardant, filler for PVC and XLPE wire/ cable insulation, SBR compds., epoxies, silicones, elastomers, neoprene foam, vinyl sheet flooring, adhesives, coatings, paints, polishes Pn rerties Superfine powd. 3.5 p avg. particle diam. sp.gr. 2.42 surf, area 8 m /g oil absorp. 32 brightness (TAPPI) 95 ref. index 1.57 hardness (Mohs) 2.5-3.5... 

Uses Plasticizer for rubber industry, CR, neoprene, nitrile, PC, other polymers textile surf, finishes softener thread lubricant antistat Properties Gardner 5 clear liq. sol. in hexane, toluene, kerosene, ethyl alcohol, acetone partly sol. in propylene glycol insol. in water m.w. 449 sp.gr. 0.984 vise. 18 cps f.p. -65 C acid no. 0.45 sapon. no. 240 hyd. no. 10 flash pt. 204 C ref. index 1.445 0.06% moisture... 

A graphical method can be used to predict the utility of solvent blends in adhesives based on Neoprene. It is based on using the solubility parameter (6) and the hydrogen bonding index (7) of each constituent solvent to predict that of the blend. The 6 and 7 of blends are additive according to their volume proportions. 

Once the solubility parameter and hydrogen bonding index of the blend has been determined, the blend can be positioned on the chart shown in Fig. 6. Solvents or blends which fall within the kidney shaped area will yield smooth, free-flowing solutions with all solvent grade types except Neoprene AH. Those which fall outside the kidney shape will not dissolve Neoprene. If a particular solvent blend falls in the shady area it may or may not be suitable depending on the amount of true solvent (e.g., toluene) in the blend. 

Rroperffos Cl. liq. neariy odoriess sol. in methylene chloride, chlorofluorocarbons, ethyl ether, xylene, MEK, acetone, ethanol, dioxane, dihexyl adipate insol. in methanol, cydohexanol, ethylene glycol sol. 34 ppb in water m.w. 236.53 sp.gr. 0.818 vise. 1.0 cSI pour pt. -85 C b.p. 152-153 C flash pt. (COC) 38 C autoigni-lion temp. 418 C ref index 1.3825 lei 0.9% uel 13.8% surf. lens. 17.4 dynes/ cm dielec. sir. 350 V/mil dielec, const. 2.30 Terdcdegy LD50 (oral, rat) > 5 g/kg low toxicity Environrrtentai May be hazardous to aquatic life Precaution Flamm. wear rubber, neoprene or nitrile gloves, chemical goggles ... 

Chem. Descrip. Epoxidized unsat. soy bean oils CAS 8013-07-8 EINECS/ELINCS 232-391-0 Uses Sec. plasticizer, costabilizer for flexible PVC, plastlsols, calendered and extruded prods., wetting of pigments, chlorinated paraffins, alkyd resins, neoprene, ethyl/cellulose, PVC/PVA emulsions Properties Gardner 3 max. cl. liq. dens. 0.99 g/ml vise. 3-7 poise acid no. 1.0 max. ref. index 1.473 7.0% min. cone. 

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