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Monsonfo Technical Bulletin No. 0-139
August, 1956
Monsanto Chemical Company, Organic Chemicals Division, St. Louis 1, Mo.
MONTAR COMPOUNDS
GENERAL INFORMATION
Montar* compounds are a series of high-inciting, dark colored polyphenyls. Each has a characteristic range of properties. Montar 3, 4, 5 and 6 are chlorinated polyphenvls; Moiitar 9 is a mixture of straight polyphenyls.
All of these compounds are effective as low-cost binders or tackifiers, for adhesives,
mastics, or hot-meh systems in which dark color is not objectionable. They are
readily incorporated in rubber base adhesives for paper by first dissolving the Montar
in a suitable solvent. (See Solubility Data, page 3.)
.
The chlorinated polvphenyls '{Montar 3, 4, 5 and 6) contribute .flame resistance to specialty asphalt products; concentrations of iOr/c or more yield product? with in stantaneous flame-out.
All Montar products are compatible with polyvinyl chloride up to about 10 parts per
100 parts of resin, and can be used as extender-type plasticizers to reduce formulat
ing costs. Their composition suggests that they may be useful as plasticizers for a
variety of other synthetic resins.
.
Montar compounds are readily available in large quantities. Sample quantities may be obtained. This bulletin presents sample formulations and information helpful in the development of new formulations.
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APPLICATIONS
Additives for Asphalt
All the Maxtor products are compatible with asphalt at ratios up to two parts for each part of asphalt. As illus trated in the table (below), Montar Xo. 4 (polychlorinated polyphenyl) contributes flame retardancc at con centrations as low as 10#, with instantaneous flame-out above 30#. This property is caused by the formation of an intumescent layer on the surface of the mixture, which "snuffs" our the flame.
Composition
Pure Asphalt 10# Montar Xo. 4 20# Montar Xo. 4 30# Montar Xo. 4 50# Montar Xo. 4 60# Montar Xo. 4
Flame-out Time
210 seconds 90 seconds 10-20 seconds Instantaneous Instantaneous Instantaneous
Both softening point and brittleness of the asphalt blend are increased as the concentration of Montar is increased. Blending is accomplished by thorough mixing, using heat where necessary.
Use in Rubber Adhesives
.
A 50# solution of either Montar Xo. 4 or Xo. 5 mixed with a 60#-solids rubber emulsion (1:1 ratio) yields
a paper adhesive with good tack.
.
Emulsified Montor
*.
The emubifiability of all the Montar products suggests additional applications in the adhesives field. In a recent test, 5# of an emulsifier was added to a 50# solution of Montar, then the mixture was progressively diluted with water. The emulsion did not break until water dilution reached 160#.
Use In Vinyls
.
Up to 10 parts of any Montar can be blended with 100 parts of polyvinyl chloride resin by simple mixing.
TYPICAL PROPERTIES OF MONTAR COMPOUNDS
Property Softening Point
(ASTM), CC. Acidity Chlorine, # CaO, ft Fe, Flash Point
Fire Point
Montor No. 3
120-170
SO-52 5-10 0.3 - 0.6 570 F. (298 C.) Above 650 F.
Polychlorinated Polyphenyls
Montor No. 4
Montar No. 5
140- 200
ISO - 250
........ Slighth
54-55
53 - 56
5-10
1-3
0.5- 1.0
0.1 -0.2
None
Xone
Xone
Xone
Polyphenyl
Montar No. 6
150-210
Montar No. 9
i 130-160
0.1 -0.3 mg. XaOH/gm.
59-61
Xone
2-5
0.2-0.4 .
0.2 - 0.4
Xone
495 I*. (257 C.)
Xone
580 F. (304" C.)
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SOLUBILITY DATA
Montar No.
i A 5 6 9
Benzene
vs vs . vs vs vs
Key: 1--.lmolublc VSS -- Very fJiyhtJy soluble SS---Slightly tolublc S-- Soluble VS--Very soluble
Toluene
vs vs vs vs vs
Kerosene
s s vs vs
SS
Methanol
SS SS SS SS I
Acetone
VSS VSS SS SS SS
. AVAILABILITY
A)) Montar compounds arc commercially available from Monsanto's Organic Chemicals Division in St. Louis (I\ O. IIox 47S), Missouri.
TOXICITY AND SAFE HANDLING INFORMATION
No formal toxicity data exist on Montar compounds. As a general precaution, prolonged skin contact should be avoided, especially v.hen working with solutions of the compounds. Otherwise, the compositions can be handled in the same manner as roofing tar.
THIS BWJ.ETIN REPLACES MONSANTO TECHNICAL BULLETIN P-116
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Printed in U S A.
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MONTAR COMPOUNDS
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Monsonto Technical Bulletin No. 0 -1 3 9 August, 1956
For further information on the products described in this bulletin contact the nearest Monsanto office.
MONSANTO CHEMICAL COMPANY
ST. LOUIS
AKRON ATLANTA BOSTON CHICAGO CINCINNATI
CLEVELAND DETROIT HOUSTON LOS ANGELES MINNEAPOLIS
NEW YORK SAN FRANCISCO SEATTLE WILMINGTON
MONSANTO CHEMICALS LTD. London
MONSANTO CHEMICALS (AUSTRALIA) LTD. Melbourne
MONSANTO (CANADA) LTD. Montreal * Toronto Vancouver
. Representatives in the Principal Cities of the World
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