Page 91 - Handbook of Surface Improvement and Modification

86 Tackifiers

Glycerol ester of rosin

GENERAL INFORMATION
Name: glycerol ester of rosin
Weight average molecular mass: 800 Biobased, wt%: 93-100
Polydispersity index: 1.2 Solids content, wt%: 100
Product composition: 100% resin acids and rosin acids, esters with glycerol
PHYSICAL PROPERTIES
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State: solid/pastilles, pellets, flakes Density, kg/m : 1070-1080
Color: light amber, yellow Color, Gardner scale: 1.2-4.8 (1:1 toluene)
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Boiling point, C: 300 Softening, C: 82-95 T , C: 30-47
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Vapor pressure, kPa: <0.00013
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Viscosity at 125 C, mPas: 1348-9830 Volatility, %: <2
HEALTH & SAFETY
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Autoignition, C: >200 Flash point, C: 191-260
Carcinogenic: NTP, IARC, OSHA, ACGIH: No component of this product present at levels
greater than or equal to 0.1% is identified as a known or anticipated carcinogen.
Rat oral LD50, mg/kg: >2000 to >5000
Rabbit dermal LD50, mg/kg: >2000
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OSHA, PEL, mg/m : 5/respirable fraction dust; 15/total dust
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Derived no effect level (DNEL): 176 kg/m inhalation; 25 mg/kg/day dermal
ECOLOGICAL PROPERTIES
Aquatic toxicity, Green algae, 96-h, LC50: >1000/72H
Aquatic toxicity, Daphnia magna, 48-h, LC50: >100
Aquatic toxicity, Fathead minnow, 96-h, LC50: >1000
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Partition coefficient, logK : 3.97 at 20 C/rosin ester
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Partition coefficient, logK : >1.5 at 35 C (rosin, glycerol ester)
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USE & PERFORMANCE
Outstanding properties: Offer good thermal stability, low, odor, low color, broad compatibility,
100% bio-based, good specific adhesion and enhanced flexibility. Provide excellent adhesive per-
formance due to high polarity with broadest polymer compatibility.
Recommended for polymers: EVA, EBA, SIS, SBS, SB rubber, natural rubber, acrylic polymers,
paraffin, and waxes
Recommended for products: packaging, PSA tapes and labels, flooring, rubber compounding,
freezer-grade packaging, hygiene, bookbinding, and woodworking
Food approval FDA: 175.105 Adhesives, 175.125 Pressure Sensitive Adhesives, 175.300 Resin-
ous & Polymeric Coatings, 176.170 Components of Paper & Paperboard in Contact with Aqueous
& Fatty Foods, 176.180 Components of Paper & Paperboard in Contact with Dry Foods, 176.200
Defoaming Agents Used in Coatings, 176.210 Defoaming Agents Used in Manufacture of Paper &
Paperboard, 177.1210 Closures with Sealing Gaskets,178.3870 Rosin & Derivatives, 177.2600
Rubber Articles Intended for Repeated Use