摘要:
An improved flame-retardant polycarbonate composition of an aromatic carbonate polymer in admixture with an organic alkali metal salt or an organic alkaline earth metal salt or mixtures thereof, which composition has in admixture therewith an additive which is an inorganic halide or an organic monomeric or polymeric aromatic or heterocyclic halide.
摘要:
A non-opaque flame-retardant polycarbonate composition comprising in admixture an aromatic carbonate polymer and an additive which may be the metal salts of sulfonic acids of aromatic ketones; said aromatic carbonate polymer and additive having a refractive index in the range of 1.54 to 1.65.
摘要:
A non-opaque flame retardant polycarbonate composition comprising in admixture an aromatic carbonate polymer and a flame retardant additive which may be the metal salts of either monomeric or polymeric substituted aromatic sulfonic acids, or mixtures thereof; said aromatic carbonate polymer and additive having a refractive index in the range of 1.54 to 1.65.
摘要:
A plasticized polycarbonate composition comprising in admixture a high molecular weight aromatic carbonate polymer and minor amount of an oligomeric-polymeric plasticizer.
摘要:
A non-opaque flame retardant polycarbonate composition comprising in admixture an aromatic carbonate polymer and an additive which may be the metal salts of sulfonic acids of aromatic sulfides; said aromatic carbonate polymer and additive having a refractive index in the range of 1.54 to 1.65.
摘要:
A flame retardant polycarbonate composition comprising in admixture an aromatic carbonate polymer and a flame retardant additive which may be the metal salts of either monomeric or polymeric phenol ester sulfonic acids, or mixtures thereof.
摘要:
Polyarylates having amide terminal groups are prepared using a terminating amount of ammonia, ammonium compounds, primary amines, secondary amines, hydrogen ammonium salts of secondary amines, or hydrogen ammonium salts of primary amines. These amide terminated polyarylates exhibit improved thermal properties and are useful in the production of films and molded articles.
摘要:
A process for preparing aryl sulfone sulfonic acids by reacting an aryl sulfone in the molten state with sulfur trioxide under substantially anhydrous conditions.
摘要:
A transalkylation process for the preparation of dihydric phenols comprising reacting, in the presence of an acid or base catalyst, at least one mole of an aromatic monohydroxy compound such as a phenol with at least one mole of an aromatic dihydroxy compound such as a dihydric phenol, thereby forming at least one dihydric phenol which is different than said aromatic dihydroxy compound.