... Abstract : Ultraviolet spectrophotometry is used to show the presence of rosin or ester gum modifications in the unsaponifiable portion of an isolated ...
DTIC Science & Technology
It was established that coatings on the basis of pure PS rosin and epoxy rosins, along with positive qualities, have much brittleness. With the addition of bitumen there is an improvement in the elasticity of the coatings, but their frost resistance and h...
National Technical Information Service (NTIS)
The allergenicity of two different types of rosins (gum rosin and tall oil rosin) was compared. The rosins were divided into their neutral and acid fractions. The neutral fraction of tall oil rosin failed to induce contact sensitivity in animals tested according to the Guinea pig maximization ...
PubMed
... organic compounds produced during electronics soldering operations using rosin-based fluxes and rosin core solders, was investigated. ...
...of the rosin. (b) By placing a tin mold of suitable design inside the barrel...container is filled, the rosin within the mold will have come from a position not less...inches below the surface of the rosin. The mold thus placed must be entirely within...
Code of Federal Regulations, 2011
... Accession Number : AD0620075. Title : SYNTHETIC ROSIN-BASE WATERPROOF COATINGS,. Corporate Author : FOREIGN ...
...2011-04-01 2011-04-01 false Glycerol ester of rosin. 172.735 Section 172.735 Food...Specific Usage Additives § 172.735 Glycerol ester of rosin. Glycerol ester of wood rosin, gum rosin, or tall oil rosin...
Rosin has a complex chemical composition. The aim of this study was to investigate if it is possible to define 1 or 2 compounds as the rosin allergens. 2 compounds, 13, 14(beta)-epoxyabietic acid and 7-oxodehydroabietic acid, identified in gum rosin and tall oil rosin, were used as screening substances for patch ...
1 SOLDER FUME and you #12;INTRODUCTION q This leaflet tells you about possible health hazards from solder fume when using flux materials containing rosin, sometimes known as colophony. It also explains arising from exposure to rosin-based or modified rosin-based solder fluxes. WHAT IS ROSIN? q ...
E-print Network
On Minimizing the Energy Consumption of an Electrical Vehicle. Abdelkader Merakeb(merakeb_kader ***at*** yahoo.fr) Frederic Messine(Frederic.Messine ...
A fracturing fluid composition consists of water, friction, reducing agent, suspending agent, and rosin acid dimer. The rosin acid dimer is available commercially under the name Dymerex. It is a pale colored thermoplastic resin consisting of approx. 80% to 90% by wt of dimeric rosin acids. (3 claims)
Energy Citations Database
...STORES General § 160.3 Rosin defined. Except as provided in § 160.15, rosin is the vitreous, well-strained, transparent, solid resin which (a) remains after the volatile terpene oils are distilled from (1) the oleoresin collected from...
...Sampling and Grading § 160.21 Rosin not fit for grading. An article consisting of rosin with an excessive amount of trash or other visible extraneous foreign material, or an article that is of such color or appearance as not to permit its accurate...
...SERVICE (Standards, Inspections, Marketing Practices), DEPARTMENT OF AGRICULTURE (CONTINUED) NAVAL STORES REGULATIONS AND STANDARDS FOR NAVAL STORES General § 160.13 Grade designations for rosin. The grades of rosin...
...Uses for Specific Chemical Substances § 721...rosin amidoamine reaction product (generic). (a) Chemical substance and significant...reporting. (1) The chemical substance identified...rosin amidoamine reaction product (PMN...
...Uses for Specific Chemical Substances § 721...rosin amidoamine reaction product (generic). (a) Chemical substance and significant...reporting. (1) The chemical substance identified...rosin amidoamine reaction product...
...Uses for Specific Chemical Substances ...rosin amidoamine reaction product (generic). (a) Chemical substance and significant...reporting. (1) The chemical substance identified...rosin amidoamine reaction product...
Code of Federal Regulations, 2010
...Applicability; description of the manufacture of gum rosin and turpentine subcategory. 454... EFFLUENT GUIDELINES AND STANDARDS GUM AND WOOD CHEMICALS MANUFACTURING POINT SOURCE CATEGORY Gum Rosin and Turpentine Subcategory §...
Nov 16, 2010 ... Description: Changes in the composition of gum rosin during disproportionation in the presence of 5% palladium-on-charcoal have been ...
Treesearch
...opaque appearance, that is, loss of transparency, brought about by the occlusion of moisture or the formation of an excessive quantity of resin acid crystals in the rosin. Establishment of New and Modified...
Single Camera Multiplexing for Multi-Target Tracking Chiraz BenAbdelkader, Philippe Burlina with a single camera on a pan/tilt platform, to track multiple moving targets within the camera's field of regard at any one time, it may not be possible to track all targets of in- terest at once. The problem
Person Identification using Automatic Height and Stride Estimation Chiraz BenAbdelkader�, Ross to automatically identify peo- ple in monocular low-resolution video by estimating the height and stride parameters of their gait. Stride parameters (stride length and cadence) are functions of body height, weight, and gender
... dynamics. The theoretical discussion is applied to experimental evidence on rosin, polyisobutylene and polystyrene. (Author). ...
Language: English ...
NBII National Biological Information Infrastructure
...2010-07-01 2010-07-01 false Dimer acid/polymerized rosin amidoamine reaction...Chemical Substances § 721.9485 Dimer acid/polymerized rosin amidoamine reaction...substance identified generically as Dimer acid/polymerized rosin amidoamine...
...2011-07-01 false Disulfonic acid rosin amine salt of a benzidine derivative (generic name...721.1675 Disulfonic acid rosin amine salt of a benzidine derivative (generic name...generically as disulfonic acid rosin amine salt of a benzidine derivative (PMN...
...Applicability; description of manufacture of tall oil rosin, pitch and fatty acids subcategory...MANUFACTURING POINT SOURCE CATEGORY Tall Oil Rosin, Pitch and Fatty Acids Subcategory...Applicability; description of manufacture of tall oil rosin, pitch and fatty acids...
In the EU rosin is classified as a skin sensitiser, apparently on the basis of its oxidation to sensitising agents. Rosin (gum, tall oil or wood) is not a skin sensitiser when examined in the guinea pig maximisation test (GPMT). Oxidised rosins are sensitisers in the GPMT. Oxidised gum rosin was further tested in ...
Computing Global Shape Measures 11 intuitive results (see Fig. 12), and so Zuni�c and Rosin 0� defined considers the left shape to be the more convex, while Zuni�c and Rosin's measure more correctly determines rosin Computing Global Shape Measures 13 Zuni�c and Rosin 0 proposed a scheme based on perimeter ...
Colophony (rosin) is a widespread material which is obtained from species of the family Pinaceae. It has a complex chemical composition, which differs depending mainly on the recovery process. The global production is about one million tons a year and the largest single consumption is in the sizing of paper and paper board. Rosin is a common cause of ...
Rosin of different sources is commonly used in many technical products and is known to cause contact allergy. The aim of the present investigation was to study the frequency of occupational dermatoses and of contact allergy to rosin in a factory producing tall-oil rosin. 163/180 present employees and 17/35 former employees participated ...
Patients with suspected allergy to colophony were patch-tested with colophony (rosin) of different kinds (gum rosin, tall oil rosin). More cases of allergy were detected by testing with more than one type of colophony. Tall oil rosin produced a smaller number of positive reactions than the gum ...
The Rosin-Rammler law is applied to solving the problem of changes in sizing characteristics in screened coals if screens of different-size openings from those employed had been used.
Gum rosin markets and those of competing materials have been studied together with methods of producing and using gum rosin and gum spirits of turpentine in Georgia. Decline of the gum naval stores industry is examined. Recommendations to help move gum ro...
...NAVAL STORES Labeling, Advertising and Packing § 160.93 Powdered rosin...quantity of inert, nonresinous foreign material: Provided, That the nature and quantity of such inert material shall be stated on the...
...454.60 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) EFFLUENT GUIDELINES AND STANDARDS GUM AND WOOD CHEMICALS MANUFACTURING POINT SOURCE CATEGORY Rosin-Based Derivatives Subcategory § 454.60...
...AND WOOD CHEMICALS MANUFACTURING POINT SOURCE CATEGORY Tall Oil Rosin, Pitch and Fatty Acids Subcategory § 454.41...this subpart. (b) The term �product� shall mean tall oil rosin, pitch and fatty...
... EFFLUENT GUIDELINES AND STANDARDS GUM AND WOOD CHEMICALS MANUFACTURING POINT SOURCE CATEGORY Gum Rosin and Turpentine Subcategory § 454...may be discharged from the manufacture of gum rosin and turpentine by a point source...
... EFFLUENT GUIDELINES AND STANDARDS GUM AND WOOD CHEMICALS MANUFACTURING POINT SOURCE CATEGORY Gum Rosin and Turpentine Subcategory § 454... (b) The term �product� shall mean gum rosin and...
...105(c)(5) of this chapter and used in defoaming agents complying with § 176.210 of this chapter, food-packaging adhesives complying with § 175.105 of this chapter, and rubber articles complying with § 177.2600 of this chapter. (f)...
natural resins, such as glycerol and pentaerythritol esters of partially hydrogenated rosin, and synthetic polymers such as p-alpha-methylstyrene, ...
NASA Website
Sipponen A, Laitinen K. Antimicrobial properties of natural coniferous rosin in the European Pharmacopoeia challenge test. APMIS 2011; 119: 720-24. Rosins (resins) are natural products of the coniferous trees. Purified rosin from the trunk of Norway spruce (Picea abies) is antibacterial against the gram-positive bacteria, but not ...
gaseous hydrogen (delivered as liquid) and some direct liquid requirements. ...... hydrogen peroxide hydrogenated bisphenol A hydrogenated rosin ...
... systems of quartz, glasses, graphites, clays, earth, and rosin (colophony) of quartz, glasses, metals, and paraffin in water, mineral oils and some ...
...2010-10-01 2010-10-01 false Stowage of cotton or vegetable fibers with rosin...Vehicles, and Asbestos § 176.901 Stowage of cotton or vegetable fibers with rosin...the same vessel. (b) When separate stowage is impracticable, the cotton or...
...Disulfonic acid rosin amine salt of a benzidine derivative (generic name). 721.1675 Section 721.1675 Protection of Environment...Disulfonic acid rosin amine salt of a benzidine derivative (generic name). (a) Chemical substance and significant new uses...
Starting from commercially available natural rosin derivatives, a class of bifunctional rosin-derived amine thiourea catalysts were designed and synthesized. The doubly stereocontrolled asymmetric addition of a variety of 1,3-dicarbonyl compounds to nitroalkenes was investigated. These rosin-derived chiral thioureas have been shown to ...
A series of chemically modified rosin resins have been tested for their potential to cause skin sensitization using the mouse LLNA. Where direct comparative evidence is available, the results of the mouse LLNA are consistent with previously obtained data using the GPMT. Reactions with sufficient fumaric acid or maleic anhydride lead to maleopimaric acid anhydride (an acid ...
This research is directed at characterizing purified maleopimaric acid (MPA), looking at the amount of MPA and fumaropimaric acid (FPA) made from a large amount of rosin and maleic anhydride (MA) or fumaric acid (FA) with various molar ratios and sources of rosin and evaluating the properties of fortified rosin sizes made from both MPA ...
We have carried out the synthesis of side-chain rosin-ester-structured poly(?-caprolactone) (PCL) through a combination of ring-opening polymerization and click chemistry. Rosin structures are shown to be effectively incorporated into each repeat unit of caprolactone. This simple and versatile methodology does not require sophisticated purification of raw ...
Tako-no-Suidashi ointment (TSO) is an old Japanese over-the-counter drug, used for the drainage of infectious pustular disease, such as furuncles, carbuncles and infectious atheroma, although whether it works well or not is unknown. The ingredients of the TSO compound commonly include rapeseed oil, gum rosin, wood rosin, Japanese wax, paraffin, petrolatum, ...
Solutions of gum rosin and acetone reproduce the volatile- and temperature-dependent viscosity, together with the phase behaviour, of hydrated magmas. A range of experimental exsolution conditions was investigated, including the variation of supersaturation, rate of decompression, solution temperature and volatile content. Degassing processese were controlled by the formation ...
NASA Astrophysics Data System (ADS)
... Block t.talic Transliteration Block Italic Transliteration A A, P PP F,, r ""o C C C ... (foam concrete) with the application of a glue-rosin frother on the ...
Traditionally, soldering of boards and other electronic components has been done using rosin based fluxes and lead-based solders, even in automated ...
The video describes how tubing is annealed, cooled and filled with rosin, and how a wire template is made. It shows how bends are marked, made, and checked.
... method for a bearing lubricating grease, involving thickening of rosin, universal oil and castor oil with lithium and potassium soaps of fatty acids. ...
... Change in softening point for gum or wood rosin derivatives used as plasticizing materials in chewing gum base. 21 CFR 172.615. ...
Center for Food Safety and Applied Nutrition (CFSAN)
