The invention relates to sulfonimide bearing phenolic compounds and the use of those compounds to produce polyphosphazenes functionalized by one or more of those compounds alone, or in combination with cosubstituents. The invention also relates to blends of sulfonimide functionalized phosphazene polymers with other polymers, membranes formed of the functionalized polymers, and the use of those membranes in devices such as fuel cells.

Synthesis of polyphosphazenes with sulfonimide side groups

Provided are flame retardant coating compositions and articles coated therewith, which compositions comprise (A) a coating and (B) an effective flame retarding amount of a mixture of (i) at least one compound selected from the group consisting of the (a) sterically hindered nitroxyl stabilizers, (b) sterically hindered hydroxylamine stabilizers and (c) sterically hindered alkoxyamine stabilizers and (ii) at least one conventional flame retardant selected from the group consisting of (d) organohalogen flame retardants, (e) organophosphorus flame retardants, (f) isocyanurate flame retardants and (g) melamine based flame retardants. The coated articles are for example iron, steel, stainless steel, aluminum and other non-ferrous metals, wood, plywood, paper, cardboard, chip board, particle board, plastics, thermoplastics, epoxies, neoprene, rubber, composites, fiberglass reinforced composites, polyesters, polymeric foam, masonry, fabric or textiles, wire and cable constructions and circuit boards.

Flame retardant coatings

An immunoadjuvant soluble polyphosphazene polyelectrolyte is disclosed. In one embodiment, the polymeric adjuvant is a poly(organophosphazene) with (i) ionized or ionizable pendant groups that contain, for example, carboxylic acid, sulfonic acid, or hydroxyl moieties, and (ii) pendant groups that are susceptible to hydrolysis under the conditions of use, to impart biodegradability to the polymer.

Phosphazene polyelectrolytes as immunoadjuvants

A flame retardant which is free from halogen, has a high melting point and low volatility, and does not lower the characteristics inherent in resins, comprising a crosslinked phenoxy-phosphazene compound obtained by crosslinking a phosphazene compound with crosslinking groups such as phenylene groups, wherein each crosslinking group is interposed between the two oxygen atoms left after the elimination of phenyl groups and the amount of the phenyl groups of the crosslinked phosphazene compound is 50 to 99.9 % based on the total amount of the phenyl groups of the phosphazene compound before crosslinking. Further, the present invention also provides resin compositions containing the flame retardant; and moldings of the resin compositions.

Crosslinked phenoxyphosphazene compounds, flame retardant, flame-retardant resin compositions, and moldings of flame-retardant resins

This invention relates to a method of sealing openings in structural components of a building to reduce the amount of smoke which may pass through the opening in the event of a fire. The method comprises filling an opening in a structural component of a building with a support material; applying a coating of a silicone composition over the filled opening and allowing the silicone composition to cure into a continuous elastomeric film having certain properties. These silicone compositions exhibit pseudo plastic rheology which facilitates their application by spraying.

A method of sealing openings in structural components of buildings for controlling the passage of smoke

Flame-retardant and low-smoke plasticized polyphosphazenes are disclosed. The plasticizers are substituted cyclotriphosphazenes and cyclotetraphosphazenes.

Polyphosphazene plasticized resins

This invention relates to blends of polyphosphazenes and silicone polymers. The blends of this invention can be formed into coatings, sheets or films or into flexible or semi-rigid foams. The blends are extremely fire retardant and produce low smoke loads, or essentially no smoke, when heated in an open flame.

Polyphosphazene polymer/silicone rubber blends and foams therefrom

Thermal degradation of polybis(p‐isopropylphenoxy)‐phosphazene

A process is disclosed for the catalytically-induced preparation of phosphazene polymers. Cyclic halophosphazenes are polymerized in the presence of a catalytically sufficient amount of a compound having the formula M(OR') x where M is an alkali metal or alkaline earth metal, x is equal to the valence of the metal and R' is C 1 to C 10 linear or branched alkyl, C 1 to C 10 substituted linear or branched alkyl, the substituent selected from the group consisting of nitro, C 1 to C 10 alkyl, C 1 to C 10 alkoxy, C 6 to C 10 aryl and C 6 to C 10 aryloxy, or N 3 P 3 Cl z (OR') 6-z wherein R' is as defined above and z equals 0 to 5.

Catalytic process for the preparation of phosphazene polymers

RJH:KSH CURABLE ARYLOXYPHOSPHAZENE POLYMERS Abstract of the Disclosure Polymers comprising randomly repeating units of the general formula , , ' and wherein R1 is linear or branched C1-C10 alkoxy, R2 is linear or branched C1-C10 alkyl, hydrogen or halogen, and W is C2 to C10 alkenyl-substituted aryloxy. These novel polymers are elastomers and may be used to form flexible and semirigid foams and coatings. They display good fire retardance and low smoke levels.

Ronald Lee Dieck

Papers

Polyphosphazene plasticized resins

Polyphosphazene polymer/silicone rubber blends and foams therefrom

Thermal degradation of polybis(p‐isopropylphenoxy)‐phosphazene

Catalytic process for the preparation of phosphazene polymers

Curable aryloxyphosphazene polymers