Polymer foam bodies are made from phosphorus-containing thermoplastic random copolymers of a dialkyl (meth)acryloyloxyalkyl phosph(on)ate. Foam bodies made from these copolymers exhibit increased limiting oxygen indices and surprisingly have good properties. In certain embodiments, the phosphorus-containing thermoplastic copolymer is blended with one or more other polymers and formed into nanofoams.

The invention provides novel bromine-containing polymers which have excellent heat resistance and are capable of imparting flame retardance or novel flame-retardant, bromine-containing polymers which have excellent heat resistance and optical characteristics, and methods for producing such polymers. The invention relates to a polymer which includes structural units of the following general formula (1):

##STR00001##

wherein R.sub.1s, R.sub.2s, m, p and the asterisks are as defined in the specification and the claims, and
to a method for producing such polymers.

The invention provides novel bromine-containing polymers which have excellent heat resistance and are capable of imparting flame retardance or novel flame-retardant, bromine-containing polymers which have excellent heat resistance and optical characteristics, and methods for producing such polymers. The invention relates to a polymer which includes structural units of the following general formula (1):

##STR00001##

wherein R.sub.1s, R.sub.2s, m, p and the asterisks are as defined in the specification and the claims, and
to a method for producing such polymers.

Methods and compositions pertaining to flame retardants using micronized rice husks are disclosed.

Methods and compositions pertaining to flame retardants using micronized rice husks are disclosed.

Fire retardant and fuel decomposition compositions that include at least one compost accelerator, at least one deliquescent, at least one polymer, at least one fire retardant, at least one polymer, and at least one wetting agent are provided. In one example, the composition includes at least one fire retardant is in a range of 50-75 weight percent, at least one deliquescent is in a range of 5-20 weight percent, at least one polymer is in a range of 0.5-2 weight percent, at least one compost accelerator is in a range of 0.5-2 weight percent, and at least one wetting agent is in a range of 0.1-1 weight percent.

Fire retardant and fuel decomposition compositions that include at least one compost accelerator, at least one deliquescent, at least one polymer, at least one fire retardant, at least one polymer, and at least one wetting agent are provided. In one example, the composition includes at least one fire retardant is in a range of 50-75 weight percent, at least one deliquescent is in a range of 5-20 weight percent, at least one polymer is in a range of 0.5-2 weight percent, at least one compost accelerator is in a range of 0.5-2 weight percent, and at least one wetting agent is in a range of 0.1-1 weight percent.

A fire insulation precursor material formed of cement, in an amount of between 10-30% w/w; and an aluminium or magnesium hydroxide, huntite or hydromagnesite in an amount of between 60-90% w/w/. A fire insulation material is provided including the previously mentioned precursor material. Further described are methods of forming a fire insulation material and applications for such material in sheaths, duct coatings, cable trays and other elongate components.

A fire insulation precursor material formed of cement, in an amount of between 10-30% w/w; and an aluminium or magnesium hydroxide, huntite or hydromagnesite in an amount of between 60-90% w/w/. A fire insulation material is provided including the previously mentioned precursor material. Further described are methods of forming a fire insulation material and applications for such material in sheaths, duct coatings, cable trays and other elongate components.

A composition contains the following components (A), (B), and (C), the component (A) being at least one melamine salt selected from the group consisting of melamine orthophosphate, melamine pyrophosphate, and melamine polyphosphate, the component (B) being at least one piperazine salt selected from the group consisting of piperazine orthophosphate, piperazine pyrophosphate, and piperazine polyphosphate, and the component (C) being a monohydrate of alumina. As disclosed, it is possible to provide a composition that can impart excellent levels of processability/moldability and flame retardancy to a resin by being mixed with the resin.