## Abstract The mechanical response of integralβskin rigid polyurethane foam, with an average density of 300 to 700 kg/m^3^, to constant rate and creep loading was determined. Sandwich specimens were modeled by layers of a core material and two skins, whose secant moduli had been determined experim
β¦ LIBER β¦
Some properties of rigid polyurethane foam obtained from oligoglycerooxalate
β Scribed by V. O. Ozola; U. K. Stirna; I. V. Gruzin'
- Publisher
- Springer US
- Year
- 1975
- Tongue
- English
- Weight
- 86 KB
- Volume
- 9
- Category
- Article
- ISSN
- 1573-8922
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The reactions between polymeric diphenyl methane diisocyanate (polymeric MDI) and conventional polyols to produce foamed polyurethane products are well documented and published. Current polyurethane foams are predominantly produced from these reactions whereby the polyol components are usually obtai