Crosslinkable polymers prepared by reacting a polymer with an azido silane having the general formula wherein X is a divalent hydrocarbyl group having one to six carbon atoms and R is an alkyl group containing one to twenty carbon atoms and m is zero or one the reaction being carried out under conditions which cause the azidosilane to graft to the polymer with the elimination of nitrogen gas.

Zwitterion polymers are provided herein having the formula: ##STR1## where R is OR', where R' is C.sub.1 -C.sub.8 alkyl or a lactam, X is oxygen or nitrogen, n is 2-10, and R.sub.1 and R.sub.2 are each independently C.sub.1 -C.sub.8 alkyl, and mixtures thereof.

Novel polyarylate polymers comprise alternating moieties derived from an aromatic dicarboxylic acid halide, with moieties derived from a hydroxyaryl-substituted 1,6-diaza [4.4] spirodilactam compound and, optionally, with moieties derived from a di(hydroxyphenyl) compound. The polyarylate polymers are thermoplastic polymers characterized by relatively high glass transition temperatures.

Elastomeric block co-polyesters having improved elastic and work recovery properties, a high melting point and are stable at high temperatures, have hard segments comprising at least 50 mole percent of polyethylene terephthalate groups and soft segments comprising at least 40 weight percent of the block copolyester. The soft segments, which have a defined structure, are formed by reacting phenolic compounds with a mixture of ethylene oxide and propylene oxide/butylene oxide.

Organophilic polymer adducts which are effective fluid loss control additives for oil base well-working fluids are prepared from an anionic or cationic water soluble polymer and one or more phosphatides. Preferred phosphatides are phosphoglycerides obtained from vegetable oils, most preferably commercial lecithin. Preferred polymers comprise polysaccharides or derivatives thereof and synthetic polymers.

Glutarimide polymers having an acid and anhydride content lower than the acid and/or anhydride content normally present in the glutarimide polymers. Blends of the reduced acid and anhydride glutarimide polymers with thermoplastic materials are disclosed. A process for altering the properties of imide polymers by reducing or substantially removing acid and anhydride levels normally present in the imide polymer is also disclosed.

Novel poly(amideimide) polymers and a method for the production thereof, which polymers are characterized by moieties of a 1,6-diaza [4.4] spirodilactam and of a bis(maleimide) alternating with the non-amino portion of a primary diamine wherein the amino groups are not located upon adjacent carbon atoms. The polymers are thermoplastic polymers of relatively high glass transition temperature.

An improved cationic water-soluble polymer is prepared from acrylamide, a cationic monomer such as dimethylaminoethyl methacrylate dimethylsulfate quaternary, and a waste stream which is produced as a result of the transesterification reaction between dialkylamino alcohols and acrylates which is used to prepare the cationic monomer. The polymers are especially useful in dewatering applications.

The present invention relates to a cycloolefin polymer having a solution viscosity >0.25 dl/g and containing polymerized units of at least one cycloolefin and, if desired, polymerized units of one or more acyclic olefins, wherein the cycloolefin polymer has at one or both ends an olefinically unsaturated group having at least 3 carbon atoms.

Improved polyvinylchloride-free compositions useful for wall and floor coverings comprise an optionally functionalized, ethylenically unsaturated block copolymer of monoalkenyl aromatic hydrocarbon and conjugated alkadiene, or selectively hydrogenated derivative thereof, an ethylene polymer, functionalized polyalkylene, polyisobutylene and particulate filler.