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POLYMER SYSTEM [25 records]

Record 1 2023-05-16

English

Subject field(s)
  • Plastics Manufacturing
DEF

The phase of a two-phase equilibrium system consisting of a polymer and a low-molecular-weight material and in which the polymer concentration is higher.

OBS

gel phase: In the standard ISO 479, the use of the term "gel phase" is discouraged.

OBS

polymer-rich phase; concentrated phase: terms and definition standardized by the International Organization for Standardization (ISO).

French

Domaine(s)
  • Plasturgie
DEF

Phase d'un système d'équilibre en deux phases composée d'un polymère et d'un matériau de faible poids moléculaire et dans laquelle la concentration en polymère est la plus forte.

OBS

phase gel : Dans la norme ISO 472, l'utilisation du terme «phase gel» est déconseillée.

OBS

phase riche d'un polymère; phase concentrée : termes et définition normalisés par l'Organisation internationale de normalisation (ISO).

Key term(s)
  • phase riche en polymères

Spanish

Campo(s) temático(s)
  • Fabricación de plásticos
DEF

Fase de un sistema de equilibrio en dos fases, compuesta por un polímero y un material de bajo peso molecular, en la cual la concentración de polímero es la más alta.

Save record 1

Record 2 2022-07-24

English

Subject field(s)
  • Textiles: Preparation and Processing
  • Technical Textiles
DEF

... an application of nanoparticle-based composition or formulation to polymer system used for fiber production, and to fibrous substrates including fibers, yarn and fabric.

CONT

Different methods can be included in nanofinishing ranging from various deposition technique such as electroless deposition and vapor deposition to layer-by-layer coating, sol-gel, ex situ and in situ synthesis, and fabrication of nanomaterials …

Key term(s)
  • nano-finishing

French

Domaine(s)
  • Apprêt et traitements divers (Textiles)
  • Textiles techniques
DEF

Application d'un traitement à base de nanoparticules à des solutions de polymères utilisées pour la production de fibres et à des matériaux textiles (fibres, fils et étoffes) afin de leur conférer certaines propriétés.

Spanish

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Record 3 2022-04-29

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Photography
CONT

In the lack of polymer lenses delivered to the chip surface, a commercial chip can be used to convert an optical microscope into a holographic recording system.

French

Domaine(s)
  • Optique
  • Infographie
  • Photographie

Spanish

Save record 3

Record 4 2017-04-25

English

Subject field(s)
  • Industrial Techniques and Processes
  • Chemical Engineering
CONT

Plasma coating refers to a coating that has been deposited on a substrate surface using a plasma system. This plasma technology is used in a number of applications where a very thin and uniform film thickness is required. Common coating materials include chemicals such as silicon dioxide or silicon nitride as well as a variety of organic polymer forming species.... Plasma coating applications include coating objects with antiglare, dielectric, water repellent(hydrophobic), heat and chemical resistance coatings. A coating may be deposited on a variety of materials including metals, polymers and ceramics.

Key term(s)
  • coating by plasma

French

Domaine(s)
  • Techniques industrielles
  • Génie chimique
CONT

Facile à nettoyer : le revêtement fonctionnel qui repousse l'eau et les salissures. Le revêtement par plasma produit des surfaces très hydrophobes, c'est-à-dire qu'elles repoussent l'eau (effet lotus). [Les] domaines d'application pionniers sont le revêtement de pièces automobiles (par exemple, des jantes en aluminium) ou les fenêtres et les vitres.

Spanish

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Record 5 2016-03-08

English

Subject field(s)
  • Oil Production
  • Chemical Engineering
CONT

Phase behavior remains one of the mainstays in designing fluid systems for surfactant/polymer flooding. ... Industrial laboratories have developed their own procedures as an aid to designing surfactant flooding systems.

French

Domaine(s)
  • Production pétrolière
  • Génie chimique
CONT

Sur le plan de la mécanique des fluides, nous manquons d'informations quantitatives concernant les effets de dispersion des solutions de tensioactifs et de polymères (et des écoulements polyphasiques qui en résultent) vis-à-vis du déplacement des liquides les uns par les autres dans le milieu poreux.

Spanish

Save record 5

Record 6 2013-03-05

English

Subject field(s)
  • Plastics Manufacturing
DEF

The phase of a two-phase equilibrium system consisting of a polymer and a low-molecular-weight material and in which the polymer concentration is lower.

OBS

The use of the term "sol phase" is discouraged.

OBS

polymer-poor phase; dilute phase: terms and definition standardized by the International Organization for Standardization (ISO).

French

Domaine(s)
  • Plasturgie
DEF

Phase pauvre du polymère; phase diluée : Phase d'un système d'équilibre en deux phases composée d'un polymère et d'un matériau de faible poids moléculaire et dans laquelle la concentration en polymère est la plus faible.

OBS

L'utilisation de l'expression «phase sol» est déconseillée.

OBS

phase pauvre en polymère; phase diluée : termes, dont un est non lexicalisé (phase pauvre du polymère), et définition normalisés par l'Organisation internationale de normalisation (ISO).

Spanish

Campo(s) temático(s)
  • Fabricación de plásticos
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Record 7 2012-05-16

English

Subject field(s)
  • Biochemistry
CONT

Hydrophobic, hydrophilic, and electrostatic interactions between the carrier and the substrate and/or effectors often produce an unequal distribution of these species between the micro-and macroenvironment. This is called the partition effect... The most obvious example here would be the case of an enzyme, acting on an cationic substrate, immobilized by attachment to a polyanion(i. e. a negatively charged polymer). The positive substrate would be concentrated around the negative polymer and thus, although the average concentration of the substrate in the system might be low, around the enzyme it will be relatively high.

French

Domaine(s)
  • Biochimie
CONT

Le faible volume de distribution est sans doute imputable à la forte liaison du naproxen aux protéines plasmatiques et à l'effet de cloisonnement selon le pH qui, ensemble, confinent fortement le médicament au compartiment plasmatique.

Spanish

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Record 8 2011-10-13

English

Subject field(s)
  • Chemistry
DEF

Molecular-weight nonhomogeneity in a polymer system; that is, there is some molecular-weight distribution throughout the body of the polymer.

French

Domaine(s)
  • Chimie

Spanish

Save record 8

Record 9 2010-05-19

English

Subject field(s)
  • Biological Sciences
DEF

Purification technique based on the preferential distribution of a soluble affinity ligand-product complex to one of the phases in an aqueous polymer two-phase system. To achieve this, the affinity ligand is covalently attached to a carrier which is preferably the less polar polymer in the two-phase system, usually PEG(polyethylene glycol) 6000.

OBS

The affinity partitioning approach may also be used for the isolation and separation of enzymes. The partition of the constituents of an enzyme extract in an aqueous two phase system comprising either polyethylene glycol (PEG) and dextran or PEG and potassium phosphate may be attributed mainly to non-specific physicochemical interaction.

French

Domaine(s)
  • Sciences biologiques
DEF

Séparation par partage de phase dont l'efficacité est augmentée en rendant affine pour une biomolécule à purifier l'une des phases liquides. Le polymère ainsi modifié contrôlerait la répartition de la biomolécule au sein du système biophasique.

Spanish

Save record 9

Record 10 2006-08-02

English

Subject field(s)
  • Routes of Administration (Pharmacology)
CONT

A polymer and active agent have been mixed to form a homogeneous system, also referred to as a matrix system. Diffusion occurs when the drug passes from the polymer matrix into the external environment.

French

Domaine(s)
  • Voies d'administration (Pharmacologie)
DEF

Système dans lequel le principe actif est réparti uniformément dans un polymère solide.

CONT

Il existe également deux systèmes transdermiques, le patch réservoir (contenant un solvant alcoolique permettant la solubilisation du principe actif et donc son passage cutané) et le patch matriciel (sans solvant alcoolique, le 17-bêta-oestradiol étant présent sous forme cristalline dispersé dans le polymère du système matriciel).

Spanish

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Record 11 2006-06-14

English

Subject field(s)
  • Paints and Varnishes (Industries)
  • Crop Protection
  • Ship Maintenance
CONT

A careful balance is needed between the amount of rosin required to provide sufficient biocide release and the quantity of the other film-forming components used to make the coating tough and durable. As the rosin content increases the binder system becomes softer and more soluble in seawater whereas a low rosin content makes the binder system virtually insoluble and hard. Antifoulings which are softer and more soluble are known as “controlled depletion polymer”(CDP) or soluble matrix antifoulings, whereas the hard types are known as insoluble matrix or “contact leaching” antifoulings.

Key term(s)
  • controlled depletion polymer anti-fouling
  • CDP anti-fouling
  • controlled solubility copolymer anti-fouling paint
  • controlled depletion polymer anti-fouling paint

French

Domaine(s)
  • Peintures et vernis (Industries)
  • Protection des végétaux
  • Entretien des navires
CONT

Nautilus Self-Polishing unit les avantages de la peinture antifouling à matrice soluble, parce qu'il consent à la pellicule de la peinture de se consommer progressivement, afin de toujours offrir une nouvelle couche.

Key term(s)
  • peinture antisalissure à base de polymère à épuisement contrôlé
  • peinture antisalissure à matrice soluble

Spanish

Save record 11

Record 12 2006-05-23

English

Subject field(s)
  • Synthetic Fabrics
  • Strength of Materials
DEF

Polymer, resin or other matrix-material system in which reinforcement is accomplished via high-strength, high-modulus materials in continuous filament form or in discontinuous form such as a staple fibers, fibrets, and in-situ dispersion.

French

Domaine(s)
  • Textiles artificiels et synthétiques
  • Résistance des matériaux
CONT

Il existe deux types de matériaux composites. Les composites grande diffusion(GD), les composites haute performance (HP) [...] Les composite HP sont principalement utilisés dans l'industrie aéronautique. Les renforts utilisés sont plutôt des fibres longues dont le taux de renfort est supérieur à 50 %. Contrairement aux composites GD, leurs propriétés mécaniques, résistance mécanique et rigidité, sont largement supérieurs à celles des métaux.

Spanish

Save record 12

Record 13 2003-10-29

English

Subject field(s)
  • Chemical Elements and Compounds
  • Rubber
CONT

Butyl Gauntlet Glove Box Gloves. ... The glove is made of a Butyl layer. The elastomer is an isoprene-isobutylene copolymer rubber.

CONT

Product Name: G&E Blended Butyl. Chemical Name: blend of isoprene/isobutylene copolymer. Chemical Family: Poly(alkene).

CONT

A transdermal therapeutic system(TTS) comprising an active substance which is sensitive to hydrolysis, and having a layer-like structure comprising a backing layer impermeable to moisture and active substance, a matrix comprising the active substance, and optionally a protective layer covering the matrix is characterized in that the matrix contains a water-binding component [which] may be of mineral or non-mineral nature. One embodiment further provides for the matrix or one of its layers to contain an acrylic-acid ester copolymer, a polyisobutylene, an ethylene-vinyl-acetate polymer, or styrene-isoprene block polymer, or a synthetic isoprene-isobutylene copolymer, or a hot-melt adhesive.

French

Domaine(s)
  • Éléments et composés chimiques
  • Caoutchouc
CONT

Les diverses familles d'élastomères : Élastomères non styréniques : le [butylcaoutchouc], qui est un copolymère d'isobutylène et d'isoprène.

CONT

Lorsqu'une résistance à la traction et un allongement supérieurs (dans les deux sens) sont critiques, par climats froids ou chauds, utiliser le ruban de copolymère isobutylène-isoprène SikaLastomer [marque déposée] de préférence aux rubans butyle d'usage général.

CONT

Le chewing-gum que vous mastiquez est fait à partir de caoutchouc [butyle]. Le copolymère isobutylène-isoprène donne au chewing-gum sa consistance élastique.

Spanish

Save record 13

Record 14 2001-06-14

English

Subject field(s)
  • Chemistry
  • Oil Production
CONT

The injected slug is formulated with three or more components. The basic components (hydrocarbon, surfactant and water) are sufficient to form the micellar solutions. A cosurfactant fourth component (usually alcohol) can be added.

CONT

Improved cosurfactants help surfactant/polymer flood performance. In the earlier system designs, simple alcohols... were used... Ethoxylated alcohol use... shows much promise as an improved cosurfactant. These chemicals have resulted in improved oil recovery and allow slugs to be tailored for higher salinity and temperature.

French

Domaine(s)
  • Chimie
  • Production pétrolière
CONT

Pour obtenir une microémulsion avec des gouttelettes de 100 angströms il faut [...] diviser par dix mille la tension interfaciale de départ. En ajoutant un simple tensioactif ce serait impossible. [...] C'est pour cela qu'il faut recourir le plus souvent à un deuxième tensioactif. Ce «cotensioactif» est d'autant plus efficace qu'il est partiellement soluble dans l'eau et dans l'huile, comme certains alcools.

Spanish

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Record 15 2000-05-30

English

Subject field(s)
  • Oil Production
CONT

Once it has been determined that the production performance can be improved through the use of polymers, then the polymer system must be chosen.... This... demands the determination of several variables... :polymer type; polymer concentration variations with time; injection rate variations with time; and total time of injection.

French

Domaine(s)
  • Production pétrolière

Spanish

Save record 15

Record 16 1998-07-13

English

Subject field(s)
  • Plastics Manufacturing
DEF

... a stainless steel "sleeve" that has the exact outside dimension of the final extruded product.

CONT

We are the manufacturers of calibrating machines and calibrating dies, used for the sizing of Pipes and Profiles. The extruded melt is delivered to the sizing die in the Calibrating Machine where it is cooled and fixed to its desired dimension, using water and vacuum-air. The water cooling system in the die can be either direct water cooling on the goods or indirect water cooling on the goods depending on type of polymer.

French

Domaine(s)
  • Plasturgie
CONT

Calibreur à pression interne et refroidissement à eau.

Key term(s)
  • manchon de calibrage
  • filière de calibrage

Spanish

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Record 17 1997-07-10

English

Subject field(s)
  • Oil Production
CONT

... the alkaline-polymer system can bank the oil more efficiently than either an alkaline or a polymer solution alone.

French

Domaine(s)
  • Production pétrolière

Spanish

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Record 18 1997-04-02

English

Subject field(s)
  • Computer Hardware
  • Audiovisual Techniques and Equipment
CONT

The real break through(in DVD technology) has come in the chemistry laboratories of Agfa in Belgium, where scientists are experimenting with data storage on a molecular plane, using a layer of photo-addressable polymers on the disc. The polymers have side-chains that rotate into one of 36 positions when subjected to light. Before recording, the polymer layer is opaque. Once subjected to light, the polymer's side-chains rotate to an extent that is controlled by varying the strength of the laser impulse. The laser will not be reading a two-dimensional system of pit/no-pit but a three-dimensional scale of grey dots, corresponding to four bits on each molecule. the twisting molecule discs could be on the market in about 10 years.

French

Domaine(s)
  • Matériel informatique
  • Audiovisuel (techniques et équipement)

Spanish

Save record 18

Record 19 1996-10-17

English

Subject field(s)
  • Glues and Adhesives (Industries)

French

Domaine(s)
  • Colles et adhésifs (Industries)
OBS

D'après Techniques de l'ingénieur, D 2ll-1.

Spanish

Save record 19

Record 20 1996-07-17

English

Subject field(s)
  • Textiles: Preparation and Processing
  • Synthetic Fabrics
  • Strength of Materials
  • Aeronautical Engineering and Maintenance
CONT

Polymer, resin or other matrix-material system in which reinforcement is accomplished via high-strength, high-modulus materials in continuous filament form or in discontinuous form such as a staple fibers, fibrets, and in-situ dispersion.

OBS

carbon and graphite fibers offer high modulus and the highest strength of all reinforcing fibers.

CONT

High-modulus composite materials are not only lighter, but are much less radar-reflecting, which helps to reduce the aircraft radar signature.

French

Domaine(s)
  • Apprêt et traitements divers (Textiles)
  • Textiles artificiels et synthétiques
  • Résistance des matériaux
  • Aérotechnique et maintenance
OBS

Module : désigne une caractéristique mécanique d'un matériau donné, utile pour établir les relations liant ses contraintes et ses déformations.

Spanish

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Record 21 1995-03-28

English

Subject field(s)
  • Chemistry
OBS

Thickeners increase the viscosity and control the rheology of a polymer system during processing. There are inorganic and organic thickeners. Among the inorganic types are various grades of clay, fumed silicas, and magnesium oxide.

OBS

... the most popular thickeners are magnesium oxide, magnesium hydroxide, calcium oxide, calcium hydroxide, or combinations of these materials.

French

Domaine(s)
  • Chimie
OBS

Voir fiche «épaississant» dans le domaine des plastiques.

Spanish

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Record 22 1995-01-23

English

Subject field(s)
  • Textiles: Preparation and Processing
  • Synthetic Fabrics
CONT

Polymer, resin or other matrix-material system in which reinforcement is accomplished via high-strength, high-modulus materials in continuous filament form or in discontinuous form such as a staple fibers, fibrets, and in-situ dispersion.

French

Domaine(s)
  • Apprêt et traitements divers (Textiles)
  • Textiles artificiels et synthétiques

Spanish

Save record 22

Record 23 1995-01-23

English

Subject field(s)
  • Textiles: Preparation and Processing
  • Synthetic Fabrics
  • Strength of Materials
CONT

Polymer, resin or other matrix-material system in which reinforcement is accomplished via high-strength, high-modulus materials in continuous filament form or in discontinuous form such as a staple fibers, fibrets, and in-situ dispersion.

Key term(s)
  • high strength material

French

Domaine(s)
  • Apprêt et traitements divers (Textiles)
  • Textiles artificiels et synthétiques
  • Résistance des matériaux

Spanish

Save record 23

Record 24 1990-05-03

English

Subject field(s)
  • Industrial Tools and Equipment
  • Plastic Materials
CONT

The size of the system(polymizer) is dependant on the volume of polymer required to supply the clarifier, paper machine, etc.

French

Domaine(s)
  • Outillage industriel
  • Matières plastiques

Spanish

Save record 24

Record 25 1988-03-30

English

Subject field(s)
  • Oil Production
DEF

The heart of a polymer blending system which meters the powdered or granulated polymer into a controlled water stream to give a uniform dispersion.

OBS

The typical arrangement allows the polymer to contact a tangentially swirling stream of water in a funnel-shaped device.

Key term(s)
  • dry polymer blending system
  • polymer blending system
  • GACO mixer
  • Dow mixer
  • polymer mixer

French

Domaine(s)
  • Production pétrolière
CONT

Les polymères sous forme de poudre, sont mélangés dans une unité de dispersion à l'eau préalablement chauffée.

Spanish

Save record 25

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