One-Shot Rigid Urethane Foam from Starch-Derived Polyethers

Otey, F. H.; Bennett, Florence L.; Zagoren, Bonnie L.; Mehltretter, C. L.

doi:10.1177/0021955x6700300304

Cited by 6 publications

(3 citation statements)

References 4 publications

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“…Premixes containing all ingredients except the isocyanate were allowed to equilibrate overnight at 25 °C before foaming. Foam preparation and testing were conducted by standard procedures (Otey et al, 1967).…”

Section: Methodsmentioning

confidence: 99%

Halogenated Polyallyl Ethers in Flame-Retardant Urethane Foams

Otey¹,

Wilham²,

Mark³

et al. 1976

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Polyallyl ethers of glycol glycosides and sorbitol were prepared and halogenated by the addition of Br2, Cl2, CCI4, and HOCI. Since these products have at least one free hydroxyl per molecule and 20 to 64% halogen, they were evaluated as reactive flame-retardant (FR) additives for polyurethane foams. Although the halogenated products have high viscosities, they dissolve in blowing agents and polyethers to yield formulations with acceptable viscosities for producing low density foams useful for insulation. The HOCI adducts have acceptable hydroxyl numbers for producing foams without any added polyol, whereas the other adducts, having low hydroxyl numbers, require blending with conventional polyethers to be suitable. At low levels of halogen, both CCI4 and HOCI adducts are significantly more effective as FR in foams than those made by direct addition of free halogen.

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Section: Methodsmentioning

confidence: 99%

Halogenated Polyallyl Ethers in Flame-Retardant Urethane Foams

Otey¹,

Wilham²,

Mark³

et al. 1976

Product R&D

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“…Foam Preparation. Rigid urethane foams were made by combining these polyethers with polymethylene polyphenyl isocyanate, blowing agent, catalysts, and emulsifier using hand mix techniques (Otey et al, 1967). The formulations had an NCO to OH ratio of 1.05.…”

Section: Methodsmentioning

confidence: 99%

“…A typical foam formulation is given in Table II. Foam testing was conducted by standard procedures reported earlier (Otey et al, 1967).…”

Section: Methodsmentioning

confidence: 99%

Halogenated Allyl Glucoside-Based Flame-Retardant Urethane Foam

Wiham¹,

Otey²,

Mehltretter³

et al. 1975

Product R&D

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dent on the strut thickness and also to a significant extent on the thickness of the unbonded face sheet. The load bearing capability of a series of pads, having a strut height of 2.69 in. and an unbonded face sheet thickness of 0.234 in. and strut thicknesses ranging from 0.10 to 0.22 in., was found to be proportional to the strut thickness raised to the 2.5 power. Another series of pads in which the strut height is 2.80 in. and the unbonded face sheet is only 0.125 in. gave load bearing characteristics proportional to the strut thickness raised to the 2.1 power. As a result of the relatively greater contribution that distortions of the face sheet make to the deformation of the pad, pads having thinner face sheets exhibit less sensitivity of C-D characteristics to strut thickness.Over the range of pad geometries studied, essentially the same compressive stress-percent deflection characteristics result from proportionally linear variations in strut height and thickness. This permits further dimensioning of pad thicknesses by adjusting strut thickness in proportion to the required change in strut height.Literature Cited

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Chemical modification of polymers with flame‐retardant compounds

Tesoro

1978

J. Polym. Sci. Macromol. Rev.

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One-Shot Rigid Urethane Foam from Starch-Derived Polyethers

Cited by 6 publications

References 4 publications

Halogenated Polyallyl Ethers in Flame-Retardant Urethane Foams

Halogenated Polyallyl Ethers in Flame-Retardant Urethane Foams

Halogenated Allyl Glucoside-Based Flame-Retardant Urethane Foam

Chemical modification of polymers with flame‐retardant compounds

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