Abstract: Polyphosphazene copolymers are prepared which contain units represented by the formulas: ##STR1## wherein X is --OR'RC--C.uparw.CH in which R and R' are hydrogen or alkyl groups containing from 1 to 6 carbon atoms; wherein X' is selected from the group consisting of substituted and unsubstituted alkoxy, aryloxy, amino and mercapto groups and wherein 20.ltoreq.(a+b+c).ltoreq.50,000 per polymer.The copolymers of the invention can be utilized to form protective films and may also be utilized in applications such as moldings, coatings and the like.

Abstract: Polyphosphazene copolymers are prepared which contain randomly distributed units represented by the formulas: ##STR1## wherein X is --OB(OR).sub.2 in which R is a branched, straight chain or cyclic alkyl group containing from 1 to 12 carbon atoms or mixtures thereof, and wherein X' is selected from the group consisting of substituted and unsubstituted alkoxy, aryloxy, amino and mercapto groups. The alkyl groups may vary in carbon chain length within the borate or all be the same.The copolymers of the invention can be utilized to form protective films and may also be utilized in applications such as for moldings, coatings, and the like. The copolymers of the invention also crosslink at room temperature in the presence of water yielding a solvent resistant film.

Abstract: The catalyst system disclosed herein comprises a combination or a chelate of a hydrocarbyl lithium compound with a bicyclic amine compound bridged together through nitrogen in each cyclic ring by means of 1-4, preferably 2-4 carbon atoms and each cyclic ring having at least one nitrogen and at least one other heteroatom in its cyclic structure selected from the class consisting of NR, O, S and PR. This catalyst system is particularly useful in the polymerization of vinyl compounds such as ethylene, propylene, styrene, butadiene, etc. The process for the polymerization of conjugated dienes produces polymers of excellent properties. For example, with butadiene-1,3 and other appropriate conditions, polybutadiene with high percentages of syndiotactic crystalline structure may be produced.

Abstract: Polyphosphazene polymers are prepared which contain repeating units represented by the formulas: ##STR1## wherein X is the same or a mixture of different radicals represented by the following structural formula: ##STR2## wherein R.sub.1 is selected from the group consisting of alkyl and aryl radicals and R.sub.2, R.sub.3 and R.sub.4 are independently selected from the group consisting of hydrogen, alkyl, alkenyl aryl, alkoxy, aryloxy and heterocyclic radical and R.sub.1-4 can be substituted with one or more substituents which are non-reactive with various materials during polymer formation; and X' can be substituted or unsubstituted and is selected from the group consisting of halogen, alkoxy, aryloxy, amino and mercapto radicals or mixtures thereof; and 20 (w+y+z) 50,000 per polymer.The polymers of the present invention can be utilized in applications such as molding, coatings, foams, fibers and the like.

Abstract: Polyphosphazene copolymers are prepared which are comprised of repeating units represented by the formulas: ##STR1## wherein X is represented by the formula: ##STR2## wherein R.sub.1, R.sub.2 and R.sub.3 are independently selected from the group consisting of hydrogen, substituted and unsubstituted alkyl radicals containing from 1 to 15 carbon atoms, substituted and unsubstituted cycloalkyl, aryl, arylalkyl, and heterocyclic radicals; X' is selected from the group consisting of substituted and unsubstituted alkoxy, aryloxy, mercapto and amino radicals, and mixtures thereof; and 20.ltoreq.(w+y+z).ltoreq.50,000 per polymer unit.The polyphosphazene polymers of the present invention are prepared by the reaction of the enol form of an aldehyde or a ketone and an additional reactant such as an alkanol, aryl alcohol, mercaptan, or amine with poly(dichlorophosphazene) in the presence of a tertiary amine. The polymers of this invention may be modified by crosslinking or curing.

Abstract: Polyphosphazene polymers are prepared which contain randomly distributed units represented by the formulas: ##STR1## wherein X is selected from the group consisting of substituted and unsubstituted mono, di, and tri nitro substituted phenoxy groups and mixtures thereof and wherein X' is the same as X or is selected from the group consisting of substituted and unsubstituted alkoxy, alkenyloxy, aryloxy, alkenylaryloxy, amino and mercapto groups.The polymers of the invention can be utilized to form protective films and may also be utilized in application such as for moldings, coatings, and the like where heat stability and solvent resistance are important.

Abstract: Polyphosphazene polymers are prepared which contain repeating units represented by the formulas: ##STR1## wherein X and X' are the same or different and are represented by: ##STR2## wherein R is selected from the group consisting of hydrogen and unsubstituted and substituted alkyl, aryl, and heterocyclic groups; X' may additionally be selected from the group consisting of chloro- and substituted or unsubstituted alkoxy, aryloxy, amino and mercapto radicals or a mixture thereof; and 20.ltoreq.(w+y+z).ltoreq.50,000.The polymers of the invention can be utilized in applications such as molding, coatings, foams and the like.

Abstract: Polyphosphazene polymers are prepared which contain repeating units represented by the formulas: ##STR1## wherein X is the same or a mixture of different radicals represented by: ##STR2## wherein X.sub.1 is selected from the group consisting of --O-- and --S--; X.sub.2 is selected from the group consisting of --O--, --S--, --NH--, and --N(R)-- where R is a lower alkyl radical; R.sub.1 and R.sub.2 are independently selected from a group consisting of hydrogen, chloro, bromo, cyano, nitro, alkylmercapto, dialkylamino, and substituted and unsubstituted alkyl, aryl, alkoxy and aryloxy radicals; the sum of (q+q') is an integer from 0 to 4; X' can be the same as X or can be selected from a group consisting of halogen and substituted and unsubstituted alkoxy, aryloxy, amino and mercapto radicals and mixtures thereof.The polymers of the invention can be utilized in applications such as coatings, moldings, foams and the like.

Abstract: Polyphosphazene polymers are prepared which contain repeating units represented by the formulas: ##STR1## wherein X and X' are the same or different and are represented by: ##STR2## wherein R.sub.1 is selected from the group consisting of hydrogen and a methyl group; R.sub.2 and R.sub.3 are independently selected for each carbon atom from a group consisting of hydrogen and alkyl radical containing from 1 to 6 carbon atoms; 2.ltoreq.m.ltoreq.20; X' can additionally be selected from the group consisting of substituted and unsubstituted alkoxy, aryloxy, amino and mercapto radicals, and mixtures thereof, which are compatible with an alkoxy acrylate substituent and are known in the state of the art of polyphosphazene technology; and 20.ltoreq.(w+y+z).ltoreq.50,000 per polymer.The polymers of the invention can be utilized to form protective films and can also be utilized in applications such as for molding, coatings, foams and the like.

Abstract: The composition described herein is a hydrogenated polymer derived from a butadiene diblock copolymer having 85-100%, preferably 95-100% 1,2-structure in one block and the other block comprising essentially 1,4-butadiene. The 1,2-block comprises at least 10%, preferably at least 25%, of the total weight of the diblock copolymer. The hydrogenated product is an elastomeric material which is oxidation-resistant and stable against ozone. Moreover, since the original polymer may be made by a method which permits control of the molecular weight, the molecular weight of the ultimate hydrogenated product is also controllable. The control of molecular weight and microstructure give highly desirable properties in the ultimate elastomeric product, and also control of tacticity and crystallinity.

Abstract: Thermoplastic elastomer blends of alpha-olefin polymers and copolymers, such as polypropylene, polyethylene, etc., having a melting point of at least 90.degree. C. with hydrogenated butadiene medium and high vinyl polymers have good physical properties such as low brittle point, good impact resistance at low temperatures, minimum creep at high temperatures, and good elongation. The blends can be repeatedly processed and still maintain good physical properties. The amount of alpha-olefin polymer or copolymer in the blend may range from about 10 percent to about 60 percent with the amount of the hydrogenated polybutadiene correspondingly ranging from about 90 percent to about 40 percent based on the combined weight of the two components. The blends are mixed at temperatures at least as high as the melting point of the alpha-olefin polymer or copolymer. These blends have excellent ozone resistance and aging properties, as well as excellent paint adhesion.

Abstract: Polyphosphazene polymers are prepared which contain units represented by the formulas: ##STR1## wherein X is ##STR2## in which R is an alkyl group of 1 to 8 carbon atoms and a is an integer of 2 to 8 and wherein X' is the same as X for homopolymers and for copolymers X' is selected from the group consisting of substituted and unsubstituted alkoxy, aryloxy, amino or mercapto groups.The polymers of the invention can be utilized to form protective films and may also be utilized in applications such as moldings, coatings and the like.

Abstract: Solution polymerization of cyclic dichlorophosphazenes represented by the general formula (NPCl.sub.2).sub.n in which "n" is less than 15 to essentially linear polydichlorophosphazenes in which the degree of polymerization is within the range of 20 to 50,000 is improved by the use of selected solvents and by the presence of elemental sulfur or sulfur donating compounds in the polymerization mixture.

Abstract: The process disclosed herein comprises the use of a catalyst system comprising a complex of R.sub.2 Mg.(ROK).sub.2 in the hydrocarbon solution polymerization of 1,3-butadiene. Preferably the solvent is hexane, but cyclohexane or other alkane or cycloalkane may be used. The ratio of ROK to R.sub.2 Mg is from 1.0/1 to 5/1 and the R.sub.2 Mg and ROK are added separately to the butadiene solution. This process produces a high trans 1,4-polybutadiene which is particularly suitable as a coating for metals such as the coating of steel for beverage cans.

Abstract: Polyphosphazene polymers are prepared which contain units represented by the formulas: ##STR1## wherein X is --NHNHCOOR in which R is alkyl containing from 1 to 12 carbon atoms, cycloalkyl containing 3 to 12 carbon atoms or aryl; wherein X' is X or is selected from the group consisting of substituted or unsubstituted alkoxy, aryloxy, amino and mercapto groups and wherein 20.ltoreq.(a+b+c).ltoreq.50,000 per polymer.The polymers of the invention can be utilized to form films and may also be utilized in applications for moldings, coatings and the like.

Abstract: Polyphosphazene polymers are prepared which contain repeating units represented by the formula: ##STR1## wherein X and Y are the same or different and are selected from the group consisting of:--CH.sub.2 O--, --O--, --S--, and --NH--;and R is selected from the group consisting of halogen, cyano, nitro, alkoxy and alkyl radicals containing from 1 to 12 carbon atoms; n'=0 to 4; and 20.ltoreq.w.ltoreq.50,000 per polymer. The polymers of the invention can contain a mixture of different ortho-difunctional phenylene substituents.The polymers of the invention can be utilized to form protective films and can also be utilized in applications such as for molding, coatings, foams, fibers and the like.

Abstract: Polyphosphazene copolymers are prepared which contain randomly distributed units represented by the formulas: ##STR1## wherein X is ##STR2## in which R is alkyl containing from 1 to 12 carbon atoms or aryl, wherein X' is selected from the group consisting of substituted or unsubstituted alkoxy, aryloxy, amino and mercapto groups and wherein 20.ltoreq.(a+b+c).ltoreq.50,000 per polymer.The copolymers of the invention can be utilized to form solvent resistant films and may also be utilized in applications for moldings, coatings and the like. Additionally, the copolymers may be utilized as crosslinking agents for other reactive monomers or polymers. An especially useful feature of these copolymers is that they can be cured or crosslinked at room temperature.

Abstract: Polyphosphazene polymers are prepared which contain units represented by the formulas: ##STR1## wherein X is ##STR2##in which R and R.sub.1 are selected from the group consisting of alkyl groups containing from 1 to 12 carbon atoms, cycloalkyl groups containing from 3 to 12 carbon atoms and aryl groups; wherein X' is X or is selected from the group consisting of substituted or unsubstituted alkoxy, aryloxy, amino and mercapto groups and wherein 20.ltoreq.(a+b+c).ltoreq.50,000 per polymer.The polymers of the invention can be utilized to form films and may also be utilized in applications such as complexing agents, moldings, coatings, foams and the like.

Abstract: Polyphosphazene polymers are prepared which contain units represented by the formulas: ##STR1## wherein X is ##STR2## in which R and R.sub.1 are selected from the group consisting of alkyl groups containing from 1 to 12 carbon atoms, cycloalkyl groups containing from 3 to 12 carbon atoms and aryl groups wherein X' is selected from the group consisting of substituted or unsubstituted alkoxy, aryloxy, amino and mercapto groups and wherein .ltoreq.20(a+b+c).ltoreq.50,000 per polymer.The copolymers of the invention can be utilized to form films and may also be utilized in applications such as moldings, coatings, foams and the like.

Abstract: Polyphosphazene polymers are prepared which contain repeating units represented by the formula: ##STR1## wherein X and Y are the same or different and are selected from the group consisting of: --O--, --S--, or --NH--; R.sub.1-6 are independently selected from a group consisting of hydrogen, alkyl containing 1 to 10 carbon atoms, cycloaliphatic compounds containing 3 to 10 carbon atoms, and substituted or unsubstituted aryl; a is 0 to 1, and 20.ltoreq.w.ltoreq.50,000 per polymer.The polymers of the invention can be utilized to form protective films and can also be utilized in applications such as for molding, coatings, foams and the like.