The resist material according to the present invention contains a compound represented by the following formula (1):

##STR00001##

wherein each R.sup.0 is independently a monovalent group having an oxygen atom, a monovalent group having a sulfur atom, a monovalent group having a nitrogen atom, a hydrocarbon group, or a halogen atom; and each p is independently an integer of 0 to 4.

The material for forming a film for lithography according to the present invention contains a compound represented by the following formula (1):

##STR00001##

wherein, each R.sup.0 independently represents a monovalent group having an oxygen atom, a monovalent group having a sulfur atom, a monovalent group having a nitrogen atom, a hydrocarbon group or a halogen atom, and each p is independently an integer of 0 to 4.

There is provided a conductive polymer having high conductivity with excellent heat resistance. Using the conductive polymer, there can be provided solid electrolytic capacitors having low ESR, high reliability, and less leakage current. There can be also provided conductive films having high conductivity and superior heat resistance. There is provided a conductive polymer dispersion liquid obtained by a method in which in the presence of a copolymer from styrenesulfonic acid, and at least one kind of a non-sulfonic acid monomer selected from the group consisting of methacrylate, acrylate, and an unsaturated hydrocarbon containing alkoxysilane compound or its hydrolysate, thiophene or its derivative is polymerized by oxidation polymerization in water, or in an aqueous solution comprising a mixture of water and a water miscible solvent to produce the conductive polymer dispersion liquid. Using the conductive polymer as solid electrolyte, a solid electrolyte capacitor can be provided. Also, using the conductive polymer, a conductive film can be provided.

A foam product comprising an expanded foam body having cells defined therein and blowing agent held within the cells, wherein at least 5% by weight of the foam body is formed from at least one component from a renewable source.

A foam product comprising an expanded foam body having cells defined therein and blowing agent held within the cells, wherein at least 5% by weight of the foam body is formed from at least one component from a renewable source.