Sulfonated bis(alkylphenoxy)alkanes as dental plaque barriers
申请人:Johnson & Johnson Products Inc.
公开号:US04307078A1
公开(公告)日:1981-12-22
Compounds useful in compositions and methods for preventing the attachment of dental plaque to the surfaces of the teeth of mammals comprise certain sulfonated bis(alkylphenoxy)alkanes and the pharmaceutically acceptable salts thereof. They are used in pharmaceutically acceptable vehicles that are periodically applied to teeth.
Phosphonitrilic chloride polymers are substituted with aryloxide or alkoxide groups by reaction with an alkali metal aryloxide or alkoxide in a single liquid hydrocarbon reaction medium, e.g. cyclohexane, toluene and the like, in which the aryloxides or alkoxides are essentially insoluble and in which the substituted product is soluble.
Polyphosphazenes containing 20-80 mole percent phenoxy, 20-80 mole percent alkylphenoxy and 2-30 mole percent alkoxy substituents possess low glass transition temperature while still exhibiting good smoke values in standard tests.
Polyphosphazene elastomers for use in making low denisty foam comprising a [ P =N ]n substantially linear backbone randomly substituted with 20-80 mole percent phenoxy, 20-80 mole percent lower alkylphenoxy, 1-50 mole percent alkoxy and 0.5-20 mole percent alkenylphenoxy and the foamed products made therefrom.
用于制造低变性泡沫的聚磷氮烯弹性体,其基本线性骨架[ P =N ]n被20-80摩尔%的苯氧基、20-80摩尔%的低级烷基苯氧基、1-50摩尔%的烷氧基和0.5-20摩尔%的烯基苯氧基随机取代,以及由此制成的泡沫产品。
Curable poly(aryloxyphosphazene) copolymers
申请人:THE FIRESTONE TIRE & RUBBER COMPANY
公开号:EP0215278A1
公开(公告)日:1987-03-25
Low or no chlorine content poly(aryloxyphosphazene) copolymers useful for fireproof foams are surprisingly produced in a one step process without use of excess phenoxide reactant over a shorter than conventional time period by (a) adding linear (NPCl2)n to a mixture of phenoxides comprising alkali or alkaline earth metal phenoxide, alkylphenoxide and allylphenoxide in quantities such that the total of the phenoxides is the equivalent of the total chlorine atoms in the (NPCl2)n and allylphenoxide is present in an amount equivalent to from about 2% to about 10% of the chlorine atoms in the (NPCl2)n; and (b) reacting the admixture formed in step (a) at a temperature ranging from about 280°F. to about 320°F. for a time period ranging from about 7 hours to about 10 hours.