Page 93 - Handbook of Surface Improvement and Modification

88 Tackifiers

Polyterpenes

GENERAL INFORMATION
Name: polyterpenes CAS #: 259094-71-8, 25359-84-6
Weight average molecular mass: 520-696
Polydispersity index: 1.3-1.4
Product composition:95 to >100% styrenated terpene rosin; polyterpene resin, made from selected
terpene monomers; >99% polyterpene resin, made from selected terpene monomers, based on β-
pinene; >99% terpene phenolic resin
PHYSICAL PROPERTIES
State: liquid, viscous/paste, Odor: odorless, mild, phenolic Color: light yellow to yellow
solid/flakes, pastilles, pellets
o
o
Softening, C: 26 to 148 T , C: -20 to 97 Color, Gardner scale: 2-6
g
o
Viscosity at 150 C, mPas: 255-19,170 Vapor pressure, kPa: <0.00013
3
Volatility, VOC %: 0-5/EPA method 24 Density, kg/m : 980-1050
HEALTH & SAFETY
o
Autoignition, C: 386 Rat oral LD50, mg/kg: >2,500 to >10,000
o
Rabbit dermal LD50, mg/kg: >2,000 to >10,000 Flash point, C: 93-243
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.
3
OSHA, PEL, mg/m : 5/respirable fraction dust; 15/total dust
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
Biodegradation probability: 8.5-39%/28d/not readily biodegradable
Partition coefficient, logK : >4.04 to >6.5
ow
USE & PERFORMANCE
Outstanding properties: Thermally stable, low odor and volatility. Light-colored and low molecu-
lar weight. Possess higher softening point. Resistant to change in viscosity, color, and oxidation.
Offer fast setting hot melt adhesives as well as high heat resistant adhesives. Provide improved for-
mulating latitude to achieve optimum performance in finished adhesives. Aliphatic compatibility.
Broad polymer compatibility, improved adhesion to difficult substrates, can be used as a co-tacki-
fier for SBC system. Compatibility with styrenic-block copolymers.
Recommended for polymers: acrylics, EVA copolymers, styrenic block copolymers, NR, most syn-
thetic elastomers, polyolefins, ethylene-based copolymer resins, SIS block copolymers, SBS,
SEBS, SBR, PUR, EnBa
Recommended for products: PSAs for tapes and labels, nonwoven, bookbinding, packaging, seal-
ants, caulks
Food approval FDA: 175.105 Adhesives, 175.125 Pressure Sensitive Adhesives, 175.300 Resin-
ous & Polymeric Coatings, 176.170 Components of Paper and Paperboard in Contact with Aque-
ous and Fatty Foods, 176.180 Components of Paper and Paperboard in Contact with Dry Foods,
177.1210 Closures with Sealing Gaskets