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POLYSULFIDE [20 records]

Record 1 2014-12-12

English

Subject field(s)
  • Prosthetic Dentistry
DEF

An elastomeric impression material based on an organic polymer in which the repeating units are linked by disulfide groups.

OBS

polysulfide impression material; polysulfide-based impression material : terms and definition standardized by the International Organization for Standardization(ISO).

French

Domaine(s)
  • Dentisterie prothétique
DEF

Produit pour empreinte à base d'élastomère obtenu par la liaison des groupes disulfides de polymères organiques.

OBS

produit pour empreinte au polysulfure : terme et définition normalisés par l'Organisation internationale de normalisation (ISO).

Spanish

Campo(s) temático(s)
  • Prótesis dental
DEF

Material elastomérico para impresión basado en un polímero orgánico en el cual las unidades que se repiten se enlazan mediante grupos disulfuro.

OBS

El endurecimiento comúnmente se logra mediante la prolongación de la longitud de cadena y el entrecruzamiento.

OBS

No se recomienda el uso de términos tales como "mercaptanos" ni "tioles".

Save record 1

Record 2 2013-08-08

English

Subject field(s)
  • Chemistry

French

Domaine(s)
  • Chimie

Spanish

Campo(s) temático(s)
  • Química
DEF

Polímero orgánico cuya estructura repetitiva se enlaza mediante grupos disulfuro.

Save record 2

Record 3 2012-04-18

English

Subject field(s)
  • Pulp Preparation (papermaking)
CONT

Because of significant advantages, the kraft process has become established as the world's dominant pulping method. Nonetheless, the process also has some severe shortcomings.... Two add-on technologies date from pre-1970, the polysulfide process(used commercially on a limited basis) and the H2S pretreatment process(demonstrated at the pilot plant level). Both methods are successful in providing significant increases in pulp yield, up to 7 % on dry wood. Unfortunately, both methods are associated with increased concentration of sulfur in the chemical cycle, which exacerbates the odor problem. Additionally, both methods require further processing steps that increase the capital and operating costs of the pulp mill.

OBS

H2S should read H2S.

French

Domaine(s)
  • Préparation de la pâte à papier
CONT

La place prédominante qu'occupe le procédé kraft parmi les méthodes de mise en pâte utilisées dans le monde témoigne bien du nombre d'avantages marqués qu'il offre. Le procédé comporte néanmoins de graves inconvénients [...] La plupart des modifications proposées visent l'obtention d'une meilleure rétention des hydrates de carbone par une stabilisation des monomères de bouts de chaîne des polymères de la cellulose et des hémicelluloses [...] Deux méthodes bien connues, le procédé au polysulfure et le pré-traitement au H2S, assurent une amélioration marquée du rendement en pâte, mais elles ont malheureusement pour inconvénient d'entraîner une augmentation de la concentration de soufre dans le cycle chimique et donc, d'aggraver le problème causé par les mauvaises odeurs.

Spanish

Save record 3

Record 4 2011-08-22

English

Subject field(s)
  • Chemical Elements and Compounds
Universal entry(ies)
C10H20O2S
formula, see observation
HSCH2COOCH2C7H15
formula, see observation
25103-09-7
CAS number
DEF

A chemical product which appears under the form of a combustible, water-white liquid with a faint fruity odour and is used in antioxidants, fungicides, oil additives, plasticizers, insecticides, stabilizers, polymerization modifiers, as a stabilizer in tin-sulfur compounds and a stripping agent for polysulfide rubber.

OBS

isooctyl thioglycolate: commercial name.

OBS

Chemical formula: C10H20O2S or HSCH2COOCH2C7H15

French

Domaine(s)
  • Éléments et composés chimiques
Entrée(s) universelle(s)
C10H20O2S
formula, see observation
HSCH2COOCH2C7H15
formula, see observation
25103-09-7
CAS number
DEF

Produit chimique se présentant sous la forme d'un liquide blanchâtre, combustible, à odeur légèrement fruitée, utilisé comme antioxydant, fungicile et plastifiant.

OBS

thioglycolate d'isooctyle : nom commercial.

OBS

Formule chimique : C10H20O2S ou HSCH2COOCH2C7H15

Spanish

Campo(s) temático(s)
  • Elementos y compuestos químicos
Entrada(s) universal(es)
C10H20O2S
formula, see observation
HSCH2COOCH2C7H15
formula, see observation
25103-09-7
CAS number
OBS

Fórmula química: C10H20O2S o HSCH2COOCH2C7H15

Save record 4

Record 5 2011-08-22

English

Subject field(s)
  • Plastics Manufacturing
  • Rubber
Universal entry(ies)
C10H21Cl
formula, see observation
DEF

A commercial term referring to a chemical compound comprising mixed isomers, having the formula C10H21Cl, appearing under the form of a combustible, colorless liquid, used as a solvent for oils, fats, greases, resins, gums, in extractants and cleaning compounds, as an intermediate for insecticides, pharmaceuticals, plasticizers, polysulfide rubbers, resins and cationic surfactants.

OBS

The decyl "chain" as shown in formulas 5 through 9 is termed a "straight chain", as one carbon follows another, like the links of a chain. Structures 15 or 16 are termed "branched chains". [An illustration of the formulas follows.] The overall formula for 5-7, C10H21Cl, is the same. Formulas 5-7 each represents "decyl chloride." However 15 and 16 differ in a crucial way. The difference is that formulas 15 and 16 have two "CH3" groups near the left end of the molecule. This is seen more easily in 17, a "condensed formula" that is equivalent to the "line formula" 15. Furthermore, 15 to 17 have a single "CH" group present, whereas 7 has no "CH" groups, only "CH3" and "CH2" groups. The new structure 15 or 17 carries a different name: "isodecyl chloride."

French

Domaine(s)
  • Plasturgie
  • Caoutchouc
Entrée(s) universelle(s)
C10H21Cl
formula, see observation
OBS

chlorure d'isodécyle : terme commercial.

OBS

Formule chimique : C10H21Cl

Spanish

Campo(s) temático(s)
  • Fabricación de plásticos
  • Caucho
Entrada(s) universal(es)
C10H21Cl
formula, see observation
OBS

Fórmula química : C10H21Cl

Save record 5

Record 6 2011-08-03

English

Subject field(s)
  • Trade Names
  • Rubber
CONT

Polysulfide-type synthetic rubber is a compound of aliphatic hydrocarbon chains linked by di-, tri-and tetra-sulfide links, manufactured from sodium polysulfide and a dihalide. Thiokol is the commercial trade name. In the manufacturing process, the sodium polysulfide is heated to 160°F.... This synthetic rubber shows oil and solvent resistance, good aging, low permeability, and has good processing characteristics.... Thiokol has been used in paint-spray hoses, oil and gasoline hoses and rollers, and as a binder.

OBS

Thiokol®: A trademark of Morton International, Inc.

Key term(s)
  • Thiokol

French

Domaine(s)
  • Appellations commerciales
  • Caoutchouc
DEF

Nom générique de thermoplastiques résistant aux corps gras et insensibles aux basses températures.

DEF

Désignation commerciale d'un certain nombre de polymères contenant des atomes de soufre et possédant des propriétés élastomères.

CONT

Parmi ces polymères, le Thiokol A est obtenu en polycondensant le polysulfure de sodium avec le dichloro-1,2 éthane vers 70-80 °C. [...] Il est très résistant aux solvants organiques, huiles et essences, ainsi qu'à l'action de l'oxygène et de l'ozone. Il est en général employé après avoir été chargé par du noir de carbone. Il est, en particulier, utilisé comme revêtement protecteur des métaux.

OBS

Thiokol® : Marque de commerce de la société Morton International, Inc.

Key term(s)
  • Thiokol

Spanish

Save record 6

Record 7 2011-07-05

English

Subject field(s)
  • Chemical Elements and Compounds
  • Crop Protection
Universal entry(ies)
(NH4)2x
formula, see observation
12259-92-6
CAS number
DEF

A chemical compound known only in solution, yellow, unstable, hydrogen sulfide odor, decomposed by acids with evolution of hydrogen sulfide, used as analytical reagent, and as insecticide spray.

OBS

Red ammonium sulfide solution. ... contains about 8% NH3 and 22% sulfur, corresponding to about 30% (NH4)2S3. ... Yellow ammonium sulfide solution ... contains 8-9% NH3 and about the same percentage of sulfur, corresponding to 16-20% as (NH4)2S.

OBS

Chemical formula: (NH4)2x

French

Domaine(s)
  • Éléments et composés chimiques
  • Protection des végétaux
Entrée(s) universelle(s)
(NH4)2x
formula, see observation
12259-92-6
CAS number
OBS

Connu seulement sous forme de solution, jaune, instable, odeur de SH2. Usages : Réactif chimique; insecticide.

OBS

Formule chimique : (NH4)2x

Spanish

Save record 7

Record 8 2008-11-06

English

Subject field(s)
  • Aircraft Propulsion Systems
CONT

Fuel is stored in aircraft in three different ways; metal tanks that are manufactured and placed in the cavity(i. e., the Cessna 172), wet wing or integral tanks. This system is utilized in some general aviation aircraft but is more prevalent in commercial aircraft. The cavity is sealed with urethane or polysulfide sealant to hold the fuel in the cavity. Bladders(or fuel cells) have been the staple way to store fuel in general aviation aircraft. The bladder is removable(for repair) and holds the fuel in a collapsible tank in the event of damage to the cavity.

French

Domaine(s)
  • Propulsion des aéronefs
OBS

vessie : terme uniformisé par les Comités d'uniformisation de la terminologie aéronautique (CUTA) - Maintenance et Opérations aériennes.

Spanish

Save record 8

Record 9 2007-08-27

English

Subject field(s)
  • Crop Protection
DEF

The actual amount of a pesticide chemical (active ingredient) put in or on a plant, animal, per unit area (i.e. per acre or 1000 square feet), a building (i.e. based on cubic feet) or per unit of time (per hour).

CONT

Calcium Polysulfide... Rates : Applied at 3-10 gallons of 5% solution/100 gallons of water or at 1-7 gallons of 5% solution/acre.

French

Domaine(s)
  • Protection des végétaux
OBS

La dose d'application prescrite sur l'étiquette est essentiellement la plus petite dose efficace de produit devant être employée.

Spanish

Save record 9

Record 10 2001-02-12

English

Subject field(s)
  • Textile Industries
CONT

sulfar fiber : A manufactured fiber in which the fiber-forming substance is a long chain synthetic polysulfide... These are high-performance fibers... They show excellent strength retention in harsh environments; are flame retardant; and non-conducting.

CONT

... It possessed a non-conducting fiber ice-container.

French

Domaine(s)
  • Industries du textile
CONT

Le textile comprend des fils non conducteurs, à base minérale, qui assurent sa résistance mécanique et thermique, et des fils chargés, constitués d'un mélange de fibres non conductrices minérales et de fibres conductrices dans une proportion déterminant les propriétés électriques résultantes, à ajuster selon les applications : éléments chauffants, protection antistatique, blindage d'appareils informatiques.

Spanish

Save record 10

Record 11 2001-02-06

English

Subject field(s)
  • Synthetic Fabrics
  • Chemistry
CONT

sulfar fiber : A manufactured fiber in which the fiber-forming substance is a long chain synthetic polysulfide in which at least 85% of the sulfide(-S-) linkages are attached directly to two aromatic rings.

French

Domaine(s)
  • Textiles artificiels et synthétiques
  • Chimie

Spanish

Save record 11

Record 12 2001-02-06

English

Subject field(s)
  • Textile Industries
CONT

sulfar fiber : A manufactured fiber in which the fiber-forming substance is a long chain synthetic polysulfide... These are high-performance fibers... They show excellent strength retention in harsh environments; are flame retardant; and non-conducting.

CONT

... It possessed a non-conducting fiber ice-container.

French

Domaine(s)
  • Industries du textile
CONT

Le textile comprend des fils non conducteurs, à base minérale, qui assurent sa résistance mécanique et thermique, et des fils chargés, constitués d'un mélange de fibres non conductrices minérales et de fibres conductrices dans une proportion déterminant les propriétés électriques résultantes, à ajuster selon les applications : éléments chauffants, protection antistatique, blindage d'appareils informatiques.

Spanish

Save record 12

Record 13 2001-02-06

English

Subject field(s)
  • Textile Industries
  • Environment
CONT

sulfar fiber : A manufactured fiber in which the fiber-forming substance is a long chain synthetic polysulfide... These are high-performance fibers... They show excellent strength retention in harsh environments; are flame retardant; and non-conducting.

French

Domaine(s)
  • Industries du textile
  • Environnement
OBS

S'emploie généralement au pluriel.

Spanish

Save record 13

Record 14 2001-02-06

English

Subject field(s)
  • Synthetic Fabrics
  • Thread Spinning (Textiles)
DEF

A manufactured fiber in which the fiber-forming substance is a long chain synthetic polysulfide in which at least 85% of the sulfide(-S-) linkages are attached directly to two aromatic rings... These are high-performance fibers with excellent resistance to strong chemicals and high temperature. They show excellent strength retention in harsh environments; are flame retardant; and non-conducting. They find use in high-temperature filter fabrics... and high-performance composites.

French

Domaine(s)
  • Textiles artificiels et synthétiques
  • Filature (Textiles)

Spanish

Save record 14

Record 15 2001-02-06

English

Subject field(s)
  • Synthetic Fabrics
CONT

sulfar fiber : A manufactured fiber in which the fiber-forming substance is a long chain synthetic polysulfide... The raw material is polyphenylene sulfide which is melt spun and processed into staple fibers.

French

Domaine(s)
  • Textiles artificiels et synthétiques
OBS

Les fibres synthétiques sont filées à l'état fondu, c'est-à-dire en fusion.

Spanish

Save record 15

Record 16 2001-02-06

English

Subject field(s)
  • Textile Industries
  • Environment
CONT

sulfar fiber : A manufactured fiber in which the fiber-forming substance is a long chain synthetic polysulfide... These are high-performance fibers... They show excellent strength retention in harsh environments; are flame retardant; and non-conducting.

French

Domaine(s)
  • Industries du textile
  • Environnement
CONT

Les tenues de protection pour intervention en milieu agressif ou toxique : La tenue «anti-acides»; Tenue «anti gaz»; Tenue «anti-frelons»; Tenue d'intervention en milieu radioactif.

CONT

Protection de la brillance des pièces de machines et de l'outillage en milieu agressif.

Spanish

Save record 16

Record 17 2001-02-06

English

Subject field(s)
  • Synthetic Fabrics
CONT

sulfar fiber : A manufactured fiber in which the fiber-forming substance is a long chain synthetic polysulfide... These are high-performance fibers with excellent resistance to strong chemicals and high temperature... They find use in high-temperature filter fabrics... and high-performance composites.

French

Domaine(s)
  • Textiles artificiels et synthétiques

Spanish

Save record 17

Record 18 2001-02-06

English

Subject field(s)
  • Synthetic Fabrics
  • Chemistry
CONT

sulfar fiber : A manufactured fiber in which the fiber-forming substance is a long chain synthetic polysulfide... These are high-performance fibers with excellent resistance to strong chemicals and high temperature.

French

Domaine(s)
  • Textiles artificiels et synthétiques
  • Chimie
CONT

Gants industriels grande taille : Protègent les mains des produits chimiques forts. Recouverts de PVC.

Spanish

Save record 18

Record 19 1993-03-25

English

Subject field(s)
  • Pulp Preparation (papermaking)
CONT

Because of significant advantages, the kraft process has become established as the world's dominant pulping method. Nonetheless, the process also has some severe shortcomings.... Two add-on technologies date from pre-1970, the polysulfide process(used commercially on a limited basis) and the H2S pretreatment process(demonstrated at the pilot plant level). Both methods are successful in providing significant increases in pulp yield, up to 7% on dry wood. Unfortunately, both methods are associated with increased concentration of sulfur in the chemical cycle, which exacerbates the odor problem. Additionally, both methods require further processing steps that increase the capital and operating costs of the pulp mill.

French

Domaine(s)
  • Préparation de la pâte à papier
CONT

La place prédominante qu'occupe le procédé kraft parmi les méthodes de mise en pâte utilisées dans le monde témoigne bien du nombre d'avantages marqués qu'il offre. Le procédé comporte néanmoins de graves inconvénients (...) La plupart des modifications proposées visent l'obtention d'une meilleure rétention des hydrates de carbone par une stabilisation des monomères de bouts de chaîne des polymères de la cellulose et des hémicelluloses (...) Deux méthodes bien connues, le procédé au polysulfure et le pré-traitement au H2S, assurent une amélioration marquée du rendement en pâte, mais elles ont malheureusement pour inconvénient d'entraîner une augmentation de la concentration de soufre dans le cycle chimique et donc, d'aggraver le problème causé par les mauvaises odeurs.

Spanish

Save record 19

Record 20 1985-05-03

English

Subject field(s)
  • Chemistry

French

Domaine(s)
  • Chimie

Spanish

Save record 20

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