摘要:
Polyether urethane foams that are heat laminatable are prepared by incorporating within the foam an effective amount of an organophosphorus additive. This organophosphorus additive can be an organophosphite, an organophosphonate, an organophosphate, and a mixture thereof. This foam can also include an halogenated flame retardant.
摘要:
Polyurethane foams prepared from the reaction of polyester polyol with organic isocyanate have improved flame retardance and dripping ember retardance by incorporation of an additive comprising (1) halogenated flame retardant, and (2) organic solvent soluble glycoluril-formaldehyde resin.
摘要:
Polyurethane foams prepared from the reaction of polyester polyol with organic isocyanate have improved flame retardance and dripping ember retardance by incorporation of an additive comprising (1) halogenated flame retardant, and (2) organic solvent soluble glycoluril-formaldehyde resin.
摘要:
A polyester polyurethane foam formulation useful in medical pads to support bedridden patients is described. The foam is formed by reaction of a polyester polyol, isocyanate and blowing agent combination of water and halogenated hydrocarbon auxiliary blowing agent. A halogenated flame retardant, e.g., an organophosphorus compound, is present. A liquid char forming and dripping ember retardant additive is also present.
摘要:
Polyurethane foams prepared with halogenated phosphoric acid flame retardant have low scorch and surface discoloration when prepared in the presence of a composition containing phenothiazine, 4,4'-thio-bis-(6-tertiary butyl meta cresol), and organophosphite.
摘要:
Polyurethane foams prepared from the reaction of polyester polyol with organic isocyanate have improved flame retardance and dripping ember retardance by incorporation of an additive comprising (1) halogenated flame retardant, and (2) water or alcohol soluble ureaformaldehyde resin.
摘要:
The present invention relates to a flame retardant mixture of a dialkylalkanolaminoalkylphosphonate and a poly(oxyor- ganophosphate/phosphonate) flame retardant which finds utility, for example, as a flame retardant in polymers containing urethane linkages. It confers food flame retardancy on the polymer without any substantial reduction in its heat distortion temperature.
摘要:
Polyurethane foams prepared from the reaction of polyester polyol with organic isocyanate have improved flame retardance and dripping ember retardance by incorporation of an additive comprising (1) halogenated flame retardant, and (2) water or alcohol soluble ureaformaldehyde resin.