摘要:
The subject invention provides a composition and a process for forming a flexible polyurethane foam sealing device having improved compression set properties at increased temperatures. The sealing device is formed without the use of chemical blowing agents. The composition includes an isocyanate component for reaction with a resin component comprising an isocyanate-reactive component having a functionality of least four and a hydroxyl number of less than 40, a graft dispersion, and a physical blowing agent. The most preferred physical blowing agent is HFC-245 fa or 1,1,1,3,3-pentafluoropropane.
摘要:
A bioresin composition is used to form a rigid polyurethane article that includes a first and a second biopolyol and is substantially free of aprotic solvents that chemically decompose in the presence of water. The first biopolyol includes a natural oil component. The second biopolyol includes the reaction product of a natural carbohydrate and an alkylene oxide. The rigid polyurethane foam article includes the reaction product of the bioresin composition and an isocyanate which are reacted in the presence of a chemical blowing agent.
摘要:
A bioresin composition is used to form a rigid polyurethane article that includes a first and a second biopolyol and is substantially free of aprotic solvents that chemically decompose in the presence of water. The first biopolyol includes a natural oil component. The second biopolyol includes the reaction product of a natural carbohydrate and an alkylene oxide. The rigid polyurethane foam article includes the reaction product of the bioresin composition and an isocyanate which are reacted in the presence of a chemical blowing agent.
摘要:
An elastomeric composition includes a reaction product of an isocyanate component and a resin component comprising a polyol and a polyetheramine in the presence of a first catalyst comprising a metal and a second catalyst comprising an amine. An elastomeric system and a method of making an elastomer are provided. The method includes providing the isocyanate component and the resin component, combining the resin component and the isocyanate component in the presence of the first and second catalysts to form an elastomeric composition, applying the elastomeric composition to a mold having a mold cavity, curing the elastomeric composition to form the elastomer, and demolding the elastomer from the mold cavity. An article including a first layer formed from the elastomeric composition emits less than 100 μg/g of volatile organic compounds over 0.5 hour at 90° C.
摘要:
Mayonnaise and dressing products, including reduced-calorie low-fat mayonnaise and reduced-calorie, low-fat, spoonable or pourable dressing compositions, having as a preservative system glucono-delta-lactone and, optionally, acetic acid in sufficient quantity to lower the pH to about 3.5 or less, preferably about 3.3 or less. The compositions have an increased resistance to microbial spoilage and, therefore, extended shelf life compared with currently marketed products, yet do not have the sharp acidic "bite" common to currently available products.