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gum rosin

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rosin, colophony

A resin obtained as a residue in the distillation of crude turpentine from the sap of pine trees (gum rosin) or from an extract of the stumps and other parts of them (wood rosin).
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
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References in periodicals archive
Gum Rosin (Gr) and potassium persulphate (KPS) were purchased from HIMEDIA and SD-Fine Chemicals Pvt.
Synthesis of Semi Interpenetrating Network Hydrogel [(GrA-Psy)-cl-Poly (AA)] and its Application for Efficient Removal of Malachite Green from Aqueous Solution
China has abundant pine resources, which guarantees sufficient oleoresin for gum rosin production.
Production and Market of Gum Rosin in China Now Available at ReportsandReports
Ingredient Quantity (phr (a)) Natural rubber (STR 5L) 100 ZnO 5 Stearic acid 2 N220 40 N550 30 Aromatic oil 12 TMQ 2 6PPD 2 Petroleum resin 0, 4, 8, 12 Phenolic resin 0, 4, 8, 12 Gum rosin 0, 4, 8, 12 TBBS 1 sulfur 2 (a.) phr, parts per hundred of rubber.
Effect of Tackifiers on mechanical and dynamic properties of carbon- black-filled NR Vulcanizates
Siegwerk of Germany reported in October that gum rosin prices had gone up by 40% in a few weeks, significantly raising the cost of its portfolio of publication gravure, heatset and coldset inks.
EU's return to economic growth may boost printers, ink manufacturers: Packaging, digital and LED-UV markets are bright spots for ink suppliers, but higher raw material costs remain a serious concern
"Secondly, gum rosin prices out of China have risen by more than 70% in 2013 as gum sellers and traders have been attempting to force a rebound in prices," Mr.
The year in review: for printing ink manufacturers, 2013 has been a fairly good year, with packaging, inkjet and UV continuing to be highlights
In particular, crude oil, gum rosin, titanium dioxide, nitrocellulose and pigments are of concern.
NPIRI's 2013 Technical Conference focuses on packaging, regulations and new technologies
Feedstocks, crude oil and gum rosin remain areas of concern for ink companies.
The raw material report: raw material prices have stabilized during the past year, although costs remain at high levels. However, stricter environmental mandates are impacting the availability of some key ingredients
"The world-wide gum rosin price run-up of the past few years will not soon be forgotten," Mr.
Arez LLC's new plant in Crossett, AR is moving ahead
"We would also highlight gum rosin and titanium dioxide ([TiO.sub.2]) as two other raw material categories where, due to potential limits on supply, fluctuations in demand can quickly translate into sharply higher costs," Mr.
The raw material report: while the costs and availability of many raw materials have stabilized during 2012, there remain reasons for concern for prices and supply during the coming year
"However, due to the bigger diversity of applications and hence raw materials used in packaging the exposure to a specific supply-side issue - like, for instance, gum rosin - tends to have somewhat less of an impact on the overall segment than in publication."
The packaging ink report
The prices of inorganies, especially titanium dioxide, vegetable oils and gum rosin, were also continuing to go up.
The European ink report: the slowing European economy and higher raw material prices are serious concerns ink manufacturers in 2012
Global gum rosin supply continues to be challenged.
NAPIM's November 2011 printing ink raw materials supply update
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