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POLYURETHANE POLYOL [5 records]

Record 1 2012-10-19

English

Subject field(s)
  • Chemical Elements and Compounds
  • Plastic Materials
CONT

They were producing and exporting to India Instapak Chemical B which has the same HS Tariff category as Slabstock Polyol produced by domestic producers, but which is neither like nor directly competitive with FSP [flexible slabstock polyurethane foams]. Although both substances contain Polyol, Instapak Chemical B differs from FSP in the following ways :(i) Different molecular weight of Polyol.(ii) Different chemical additives.(iii) Unique reactivity with Instapak Chemical A.... Instapak Chemical B and FSP are not directly competitive articles because it has a unique end use. It is used only to produce protective foam in-house to package items such as defence electronics, avionics, computer peripherals, aircraft parts etc. and not for mattresses or flexible slabstock.

OBS

Foaming. ... Compounding of the ingredients of a foam formulation is generally carried out in either of two ways: the "one-shot" or the "partial prepolymer" method. ... In the partial prepolymer method all the isocyanate is reacted first with part of the polyol; this intermediate is referred to as the A component. The remainder of the polyol, containing the catalyst, blowing agent, and other ingredients, forms the B component. The two components are supplied in separate containers and constitute a two-part prefoam mixture system that requires good agitation for blending and foaming.

OBS

Instapak®: A registered trademark for polyurethane foam packaging systems.

Key term(s)
  • Instapak chemical A
  • Instapak component A

French

Domaine(s)
  • Éléments et composés chimiques
  • Matières plastiques
OBS

Expansion (formation de mousse). [...] Il y a en général, deux façons d'effectuer la formulation des ingrédients d'une mousse : elle se fait soit par la méthode en un seul stade («one shot») soit par celle du prépolymère partiel. [...] Dans la méthode du prépolymère partiel, la quantité totale d'isocyanate réagit d'abord avec une partie du polyol; l'intermédiaire qui en résulte constitue le composant A. Le reste du polyol, qui contient le catalyseur, l'agent gonflant et les autres ingrédients, forme le composant B. Les deux composants sont présentés dans des récipients distincts et constituent un système moussant en deux parties préparé à l'avance, qui nécessite une bonne agitation pour effectuer le mélange des constituants et déclencher la montée de la mousse.

OBS

Instapak® : marque déposée.

Key term(s)
  • composant A de la mousse plastique Instapak

Spanish

Save record 1

Record 2 2012-10-19

English

Subject field(s)
  • Chemical Elements and Compounds
  • Plastic Materials
CONT

They were producing and exporting to India Instapak Chemical B which has the same HS Tariff category as Slabstock Polyol produced by domestic producers, but which is neither like nor directly competitive with FSP [flexible slabstock polyurethane foams]. Although both substances contain Polyol, Instapak Chemical B differs from FSP in the following ways :(i) Different molecular weight of Polyol.(ii) Different chemical additives.(iii) Unique reactivity with Instapak Chemical A.... Instapak Chemical B and FSP are not directly competitive articles because it has a unique end use. It is used only to produce protective foam in-house to package items such as defence electronics, avionics, computer peripherals, aircraft parts etc. and not for mattresses or flexible slabstock.

OBS

Foaming. ... Compounding of the ingredients of a foam formulation is generally carried out in either of two ways: the "one-shot" or the "partial prepolymer" method. ... In the partial prepolymer method all the isocyanate is reacted first with part of the polyol; this intermediate is referred to as the A component. The remainder of the polyol, containing the catalyst, blowing agent, and other ingredients, forms the B component. The two components are supplied in separate containers and constitute a two-part prefoam mixture system that requires good agitation for blending and foaming.

OBS

Instapak®: A registered trademark for polyurethane foam packaging systems.

Key term(s)
  • Instapak chemical B
  • Instapak component B

French

Domaine(s)
  • Éléments et composés chimiques
  • Matières plastiques
OBS

Expansion (formation de mousse). [...] Il y a en général, deux façons d'effectuer la formulation des ingrédients d'une mousse : elle se fait soit par la méthode en un seul stade («one shot») soit par celle du prépolymère partiel. [...] Dans la méthode du prépolymère partiel, la quantité totale d'isocyanate réagit d'abord avec une partie du polyol; l'intermédiaire qui en résulte constitue le composant A. Le reste du polyol, qui contient le catalyseur, l'agent gonflant et les autres ingrédients, forme le composant B. Les deux composants sont présentés dans des récipients distincts et constituent un système moussant en deux parties préparé à l'avance, qui nécessite une bonne agitation pour effectuer le mélange des constituants et déclencher la montée de la mousse.

OBS

Instapak® : marque déposée.

Key term(s)
  • composant B de la mousse plastique Instapak

Spanish

Save record 2

Record 3 2010-05-17

English

Subject field(s)
  • Chemical Elements and Compounds
CONT

Propylene oxide is reasonably anticipated to be a human carcinogen based on sufficient evidence of carcinogenicity in experimental animals. It is used primarily as a chemical intermediate in the production of polyurethane polyols, propylene glycols, glycol ethers, and specialty chemicals.

Key term(s)
  • polyurethane polyols

French

Domaine(s)
  • Éléments et composés chimiques
Key term(s)
  • polyols à base de polyuréthanes

Spanish

Save record 3

Record 4 2003-04-15

English

Subject field(s)
  • Chemical Elements and Compounds
  • Missiles and Rockets
Universal entry(ies)
CONT

The projectile’s rocket motor ... contains about 0.5 kg of aluminised rubbery HTPB (hydroxy-terminated polybutadiene) propellant set in an intricate shape to give the maximum possible burning area.

CONT

The liquid hydroxy-terminated polybutadiene Krasol LBH 3000 was used as a polyol for the preparation of polyurethane elastomers.... Size exclusion chromatography and liquid adsorption chromatography were used to characterise low-molecular weight hydroxy-terminated polybutadienes prepared by anionic polymerisation.

CONT

hydroxy terminated polybutadiene (1, 2 addition), ... hydroxy terminated polybutadiene (1, 4 addition) ...

OBS

hydroxy-: [A] chemical prefix indicating the OH group in an organic compound, such as hydroxybenzene for phenol, C6H5OH ... [oxy- and hydroxyl- are to be avoided in this sense.]

OBS

HTPB: This might be an in-house or a non-recognized abbreviation; not to be used alone, to avoid any risk of confusion.

French

Domaine(s)
  • Éléments et composés chimiques
  • Missiles et roquettes
Entrée(s) universelle(s)
CONT

Le moteur-fusée du projectile [...] contient 500 g de polybutadiène hydroxylé, à charge d'aluminium et d'élastomères. Sa forme est étudiée pour que la surface de combustion soit aussi grande que possible.

CONT

Liants, plastifiants, monomères et polymères, comme suit : [...] HTPB (polybutadiène terminé par un hydroxyle) ayant une fonctionnalité hydroxyle égale ou supérieure à 2,2 et inférieure ou égale à 2,4, un indice d'hydroxyle inférieur à 0,77 méq/g, et une viscosité à 30 °C inférieure à 47 poises [...]

OBS

HTPB; PBHT : abréviations non officielles; ne pas les utiliser seules, pour éviter tout risque de confusion.

Spanish

Save record 4

Record 5 2003-02-06

English

Subject field(s)
  • Chemical Elements and Compounds
  • Plastic Materials
CONT

FSP [flexible slabstock polyol, used in the manufacture of slabstock foams and polyurethane foam mattresses] is manufactured as homopolyol and hetropolyol [sic : heteropolyol]. Propylene oxide(PO) based polyols are referred to as homopolyols and those containing ethylene oxide mix are known as hetropolyols [sic : heteropolyols]. Both homopolyols and [heteropolyols] are used interchangeably by the foamers.

French

Domaine(s)
  • Éléments et composés chimiques
  • Matières plastiques
OBS

homopolyol : terme formé sur le modèle de «homopolymère», qui se rapporte à un polymère provenant d'une seule espèce de monomère et à partir de «polyol», syn. : «polyalcool», qui se rapporte à un corps possédant plusieurs fonctions alcool.

Spanish

Save record 5

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