Abstract: Vinyl heat welding rod for seam sealing vinyl resilient flooring, whether in sheet or tile form, are used to obtain a homogeneous, monolithic appearing surface. This rod is specifically made to duplicate the appearance of the flooring material. For a chip-image flooring structure, a sheet of multicolored chips having a similar, but different formulation from that of the flooring material is prepared and the sheet is cut into suitable strips, heat pressed in a rod mold, end adhered or further molded to form the desired length, and used as a vinyl heat welding rod for sealing seams in flooring. Thus, the chip pattern is evident in the seam area and does not appear different when compared to the adjacent surface.

Abstract: The invention is directed to a comfort cushion adapted for use by a person standing for a prolonged period. The cushion causes increased leg muscle activity that results in increased movement of blood upward from the feet of the standing person. The cushion is composed of a wear layer which is resistant to abrasion from foot traffic and a base material which is substantially more compressible than the wear layer. The comfort cushion causes the foot to assume a slightly different angular relationship to the horizontal as compared with the conditions that exist when one is standing on a conventional flat floor. This, in turn, causes increased leg muscle activity.

Abstract: A curable coating composition comprising the reaction product of at least one unsaturated polyaryloxyphosphazene, at least one unsaturated aryloxycyclotriphosphazene, and a crosslinking agent is disclosed. In one embodiment, the coating composition is suitable for use as a cigarette burn resistant wear layer coating for thermoplastic floor coverings.

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

Abstract: Polymers comprising randomly repeating units of the general formula ##STR1## wherein R.sub.1 is linear or branched C.sub.1 -C.sub.10 alkoxy, R.sub.2 is linear or branched C.sub.1 -C.sub.10 alkyl, hydrogen or halogen, and W is C.sub.2 to C.sub.10 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.

Abstract: This invention relates to polyphosphazenes which have an at least partially regulated structure corresponding to the formula:--N.sub.3 P.sub.3 (Cl).sub.5 (OR.sup.1)--.sub.n (I)where n is greater than 2, and where R.sup.1 is phenyl or substituted phenyl. This invention further relates to copolymers, derived from the above polymers (I), which correspond to the formula:--N.sub.3 P.sub.3 (OR.sup.1)(OR.sup.2).sub.5 --.sub.n (II)where R.sup.1 is phenyl or substituted phenyl and where R.sup.2 is different than R.sup.1 and is an alkyl or substituted alkyl radical or a phenyl or substituted phenyl radical.These polymers are prepared by polymerizing cyclic triphosphazenes of the formula: ##STR1## to form the polymers (I) which, in turn, are reacted to replace the chlorine with organic radicals to form polymers (II).The polymers (II) can be formed by chemical blowing agents to form fire retardant articles. These polymers have fire retardant properties and evolve little or no smoke when exposed to an open flame.

Abstract: Polymers comprising randomly repeating units of the general formula ##STR1## wherein R.sub.1 is linear or branched C.sub.1 -C.sub.10 alkoxy, R.sub.2 is linear or branched C.sub.1 -C.sub.10 alkyl, hydrogen or halogen, and W is C.sub.2 to C.sub.10 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.

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

Abstract: Flame and smoke-suppressant polymer compositions are described comprising a resinous polymer of vinyl chloride and a flame and smoke-suppressant amount of(1) at least one compound of the formula ##STR1## wherein R is C.sub.1 to C.sub.18 linear or branched alkyl and R.sub.1, R.sub.2 and R.sub.3 are the same or different and are hydrogen, C.sub.1 to C.sub.8 linear or branched alkyl or halogen; and(2) an oxide, hydroxide or salt of iron (III), zinc, or mixtures thereof.

Abstract: Smoke-suppressant additives for polyphosphazene homopolymers, copolymers and foams thereof are described. Smoke suppression occurs by the incorporation of an effective amount of organo titanate-treated mineral filler.

Abstract: Poly(aryloxyphosphazene) copolymers and foams thereof having a significant portion of C.sub.1 - C.sub.4 alkoxyphenoxy groups are described. The copolymers consist of the units which occur in a nonregular fashion and are represented by the following general formulas: ##STR1## wherein R.sub.1 represents a C.sub.1 - C.sub.4 linear or branched alkyl radical in the ortho-, meta-, or para-position, and R.sub.2 represents hydrogen, a C.sub.1 - C.sub.10 linear or branched alkyl radical, or a C.sub.1 - C.sub.4 linear or branched alkoxy radical substituted on any sterically permissible position on the phenoxy group, with the proviso that when R.sub.2 is alkoxy, OR.sub.1 and R.sub.2 are different. The copolymers of this invention may contain small amounts of randomly distributed units in addition to the repeating units described above, these additional units containing reactive sites enabling the properties of the copolymers to be modified by crosslinking and/or curing.

Abstract: Polyphosphazene blends and foams thereof are described. The blends comprise of at least one polyphosphazene copolymer having a Young's Modulus of up to about 5.times.10.sup.8 dynes/cm.sup.2 and at least one polyphosphazene homopolymer or copolymer having a Young's Modulus of at least about 5.times.10.sup.8 dynes/cm.sup.2. The copolymers used to prepare the blends comprise randomly repeating units represented by the formulas ##STR1## wherein R.sub.1 and R.sub.2 are the same or different and are hydrogen, a C.sub.1 -C.sub.10 linear or branched alkyl radical, or a C.sub.1 -C.sub.4 linear or branched alkoxy radical substituted on any sterically permissible position on the phenoxy group, with the proviso that when R.sub.2 is alkoxy, R.sub.1 and R.sub.2 are different. The blends of this invention can be formed into 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.

Abstract: 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.

Abstract: This invention relates to fire-retardant polyisocyanurate and polyurethane foams having reduced smoke levels when burned and to methods for producing such foams. The foams are produced by incorporating into the polyisocyanurate or polyurethaneA. polycarboxylic cycloaliphatic acids having 3 non-adjacent carboxylic acid groups or any configuration with more than 3 carboxylic acid groups up to and including acids containing one carboxylic acid group per carbon atom,B. polycarboxylic heterocycloaliphatic acids having 3 non-adjacent carboxylic acid groups or any configuration with more than 3 carboxylic acid groups up to and including acids containing one carboxylic acid group per carbon atom,C. polycarboxylic aromatic acids having 3 non-adjacent carboxylic acid groups or any configuration with more than 3 carboxylic acid groups up to and including acids containing one carboxylic acid group per carbon atom,D.

Abstract: Smoke suppressant additives for poly(aryloxyphosphazene) homopolymers, copolymers and foams thereof are described. Smoke suppression occurs by the incorporation of an effective amount of a normally solid carboxylic acid.

Abstract: Polyphosphazene blends and foams thereof are described. The blends comprise of at least one polyphosphazene copolymer having a Young's Modulus of up to about 5.times.10.sup.8 dynes/cm.sup.2 and at least one polyphosphazene homopolymer or copolymer having a Young's Modulus of at least about 5.times.10.sup.8 dynes/cm.sup.2. The copolymers used to prepare the blends comprise randomly repeating units represented by the formulas ##STR1## wherein R.sub.1 and R.sub.2 are the same or different and are hydrogen, a C.sub.1 - C.sub.10 linear or branched alkyl radical, or a C.sub.1 - C.sub.4 linear or branched alkoxy radical substituted on any sterically permissible position on the phenoxy group, with the proviso that when R.sub.2 is alkoxy, R.sub.1 and R.sub.2 are different. The blends of this invention can be formed into 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.

Abstract: Poly(aryloxyphosphazene) polymers and foams thereof having di(C.sub.1 -C.sub.10)alkylaminophenoxy groups are described. The polymers consist of the units which occur in a nonregular fashion and are represented by the following general formula: ##STR1## wherein R.sub.1 and R.sub.2 are the same or different and are C.sub.1 -C.sub.10 linear or branched alkyl radical. Copolymeric dialkylaminoaryloxy-aryloxyphosphazenes are disclosed represented by units of the general formula: ##STR2## wherein R.sub.1 and R.sub.2 are defined above and R represents hydrogen, halogen, C.sub.1 -C.sub.10 linear or branched alkyl radical, or C.sub.1 -C.sub.4 linear or branched alkoxy radical substituted on any sterically permissible position on the other phenoxy group. The radical NR.sub.1 R.sub.2 is substituted in the meta or para position on the phenoxy radical. The polymers are elastomers, have desirable tensile strengths and may be used to form flexible or semi-rigid films, sheets, and foams.

Abstract: Poly(aryloxyphosphazene) copolymers and foams thereof having a significant portion of C.sub.1 - C.sub.4 alkoxyphenoxy groups are described. The copolymers consist of the units which occur in a nonregular fashion and are represented by the following general formulas: ##STR1## wherein R.sub.1 represents a C.sub.1 - C.sub.4 linear or branched alkyl radical in the ortho-, meta-, or para-position, and R.sub.2 represents hydrogen, a C.sub.1 - C.sub.10 linear or branched alkyl radical, or a C.sub.1 - C.sub.4 linear or branched alkoxy radical substituted on any sterically permissible position on the phenoxy group, with the proviso that when R.sub.2 is alkoxy, OR.sub.1 and R.sub.2 are different. The copolymers of this invention may contain small amounts of randomly distributed units in addition to the repeating units described above, these additional units containing reactive sites enabling the properties of the copolymers to be modified by crosslinking and/or curing.

Abstract: Smoke suppressant additives for poly(aryloxyphosphazene) homopolymers, copolymers and foams thereof are described. Smoke suppression occurs by the incorporation of an effective amount of a normally solid carboxylic acid.

Abstract: Vinyl heat welding rod for seam sealing vinyl resilient flooring, whether in sheet or tile form, are used to obtain a homogeneous, monolithic appearing surface. This rod is specifically made to duplicate the appearance of the flooring material. For a chip-image flooring structure, a sheet of multicolored chips having a similar, but different formulation from that of the flooring material is prepared and the sheet is cut into suitable strips, heat pressed in a rod mold, end adhered or further molded to form the desired length, and used as a vinyl heat welding rod for sealing seams in flooring. Thus, the chip pattern is evident in the seam area and does not appear different when compared to the adjacent surface.