Abstract: A reinforced pipeline liner designed to facilitate installation and systems and methods for producing and installing a reinforced pipeline liner. A reinforced pipeline liner can comprise a body portion having a layer of matrix material, the layer having an inner surface and an outer surface, and a plurality of interspersed reinforcement structures embedded within the body portion. The reinforcement structures are positioned between the inner surface and outer surface of the layer and circumferentially offset from the other reinforcement structures. Additionally, the body portion may have multiple thicknesses.

Abstract: This invention describes the synthesis of solvent soluble polymers using crosslinkers containing multiple unsaturations. Thus, it serves two purposes i.e. provides the functionality for further modification and also a rigidity. This selective polymerization involves copolymerization of a vinyl monomer with an inclusion complex of crosslinker either thermally/photochemically in the presence of oil/water soluble initiator in organic as well as aqueous medium. Crosslinkers used are acrylamide/methacrylamide derivatives. The inclusion complex of crosslinkers can be polymerized with the desired monomer in the first step and can be crosslinked in the second step. The content of the crosslinker can be adjusted from 0.01 to 99.99%, which gives soluble copolymers.

Abstract: The present invention describes water-soluble homopolymers obtained by polymerization of monomers containing multiple unsaturations. These monomers form inclusion complexes with cyclodextrins and methylated cyclodextrins. The unsaturated site involved in the formation of the inclusion complex does not take part in the polymerization reaction. After cyclodextrin is recovered, the polymer containing multiple unsaturations can be further polymerized either by thermal and/or photochemical initiators to yield crosslinked polymers.

Abstract: The present invention describes water-soluble homopolymers obtained by polymerization of monomers containing multiple unsaturations. These monomers form inclusion complexes with cyclodextrins and methylated cyclodextrins. The unsaturated site involved in the formation of the inclusion complex does not take part in the polymerization reaction. After cyclodextrin is recovered, the polymer containing multiple unsaturations can be further polymerized either by thermal and/or photochemical initiators to yield crosslinked polymers.

Abstract: The present invention describes water-soluble homopolymers obtained by polymerization of monomers containing multiple unsaturations. These monomers form inclusion complexes with cyclodextrins and methylated cyclodextrins. The unsaturated site involved in the formation of the inclusion complex does not take part in the polymerization reaction. After cyclodextrin is recovered, the polymer containing multiple unsaturations can be further polymerized either by thermal and/or photochemical initiators to yield crosslinked polymers.

Abstract: The present invention discloses compositions, comprising a lipid-polymer matrix to mask the bitter or unpleasant taste of the medicament. The lipid or a blend of lipids, are used in combination with the pH dependent polymer where the said polymer is acid soluble or swellable The process for the preparation of taste masked pharmaceutical compositions of the bitter drugs comprising the said lipid-polymer compositions are disclosed. The concomitant use of the acid soluble polymer, which remains collapsed at the pH of saliva, inhibits the release of drug at that pH and hence they further help in bitterness inhibition. The said compositions deliver substantial amount of the bitter drug immediately at the gastric pH with improved palatability.

Abstract: The present invention relates a novel pH sensitive polymer which exhibits pH dependant swelling/dissolution behavior. The composition is useful for taste masking of bitter drugs and also for the gastric delivery of the drugs. The said polymer comprises a hydrophobic monomer polymerized along with a basic monomer or a hydrophobic monomer polymerized along with a basic monomer and a hydrophilic monomer.

Abstract: The present invention describes water-soluble homopolymers obtained by polymerization of monomers containing multiple unsaturations. These monomers form inclusion complexes with cyclodextrins and methylated cyclodextrins. The unsaturated site involved in the formation of the inclusion complex does not take part in the polymeization reaction. After cyclodextrin is recovered, the polymer containing multiple unsaturations can be further polymerized either by thermal and/or photochemical initiators to yield crosslinked polymers.

Abstract: The present invention discloses coating compositions with taste masking property, comprising a blend of pH sensitive polymers and optionally a pH independent polymer or a blend of the pH sensitive polymer and pH independent polymer used for taste masking of highly bitter drugs. The pH sensitive polymers used comprise the acid soluble polymers and the enteric polymers. The process for the preparation of taste masked pharmaceutical compositions of the bitter drugs comprising the said coating compositions is disclosed. The concomitant use of the polymers inhibits the release of the bitter drug at the pH of saliva. The said coating compositions deliver substantial amount of the bitter drug immediately with improved palatability.

Abstract: Functional polyvalent oligomer for applications in medicine and biotechnology are disclosed. These oligomers have the formula (1) wherein R is H, CH3, C2H5, R1, is H, NH2, OH, COOH, X is N-Acetyl Glucosamine mannose, galactose and sialic acid, fructose, ribulose, erythrolose, xylulose, psicose, sorbose, tagatose, glucopyranose, fructose, deoxyribose , galactosamine, sucrose, lactose, isomaltose, maltos, cellobiose, cellulose and amylose, Y is H, COOH, OH or NH2, and n is from 3 to 50. The present invention also relates to synthesis of such oligomeric ligands. The method of synthesis of the present invention for oligomerization can be—applied to other ligands such as sialic acid, mannose and galactose and can—be used for the prevention of infections.

Abstract: The present invention discloses a substantially amorphous pharmaceutical composition comprising a drug that can exist in a variety of polymorphic forms and a pH sensitive polymer, which inhibits the crystallization of the drug during formulation and reconstitution. Polymers of higher molecular weight are more effective at lower loading, especially when the drug polymer matrix is prepared by the solvent evaporation or solvent extraction technique. The compositions used as dry syrups maintain bioavailability of the drug and effectively mask the taste of the drug when the composition is reconstituted.

Abstract: The present invention relates a novel pH sensitive polymer which exhibits pH dependant swelling/dissolution behavior. The composition is useful for taste masking of bitter drugs and also for the gastric delivery of the drugs. The said polymer comprises a hydrophobic monomer polymerized along with a basic monomer or a hydrophobic monomer polymerized along with a basic monomer and a hydrophilic monomer.

Abstract: The present invention discloses pharmaceutical compositions comprising of pH sensitive polymers used for taste masking highly bitter drugs. The pH sensitive polymer acts as a reverse enteric coating, which is soluble in the acidic pH range 1.0 to 3.0 normally found in the stomach but is insoluble in the pH range 3.5 to 7 thus inhibiting the release of the bitter drug at the pH of saliva and also at the pH of reconstitution medium in case of liquid orals.

Abstract: The present invention provides novel thermoprecipitating polymers of formula 1 containing novel enzyme sensitive ligands of the formula 4, processes for the preparation thereof respectively, and to the use thereof for the separation of enzymes. In formula 1 R is hydrogen or methyl, 1 is an integer in the range of from 1 to 10, m and n are either 0 or 1, x and y are integers greater than 1.

Abstract: The present invention describes the synthesis of soluble copolymers containing multiple unsaturations. These copolymers contain reactive vinyl groups which can be further reacted in a second stage polymerization. The process involves copolymerization of a vinyl monomer with an inclusion complex of a monomer having multiple unsaturations and a cyclic macromolecular compound to yield soluble polymers. These polymers may be cast into films, membranes or may be converted in micro or nanoparticles and then crosslinked in a second step polymerization.

Abstract: The present invention relates to block copolymers for applications in medicine and biotechnology and synthesis thereof. Block copolymers comprise polyvalent N-Acetyl Glucosamine (NAG) which bind more efficiently to lysozyme than NAG itself. The effective inhibition is possible even at very low ligand concentrations than reported earlier. The block copolymers could be used for prevention and treatment of bacterial and viral infections. Moreover these polymers can be stimuli sensitive and be used for the recovery of biomolecules. The methodology of preparation of block copolymers reported here can be extended to other polymers and ligands such as sialic acid and used for preventing influenza and/or rotavirus infections. It also provides a method for preparation of block copolymers wherein polymers comprising sequences of specific ligands are essential.

Abstract: The present invention relates to tri-block copolymers of molecular weight ranging between 2,000 Daltons to 2,00,000 Daltons having formula (1), having extraordinarily high binding strength, wherein, R1 is H, CH3, C2H5, or C6H5; R2 is H, CH3, C2H5, or C6H5; X is an ester or amide linkage; m is ranging from 3 to 500; n is ranging from 2 to 50; L is OH, NH2, OCH3, or NHCH(CH3)2; Y is N-Acetyl Glucosamine, mannose, galactose, sialic acid, fructose, ribulose, erythrolose, xylulose, psicose, sorbose, tagatose, glucopyranose, fructofuranose, deoxyribose, galactosamine, sucrose, lactose, isomaltose, maltose, cellobiose, cellulose, or amylose, a simple and effective process for the preparation of the tri-block copolymers of formula (1), and a method of preventing and/or treating microbial infections, wherein the said method comprises steps of exposing the microbe to the tri-block copolymer of formula 1, and thereafter, binding of the polymer to the microbe inhibits the microbial infection.

Abstract: The present invention provides a polymer composition for the selective removal of cobalt, a process for the preparation thereof and the process for removal of cobalt, using the said polymer composition. More particularly it relates to a cross-linked polymer composition prepared by the molecular imprinting technique. The preparation of the cross linked polymer involves selection of vinyl monomers bearing functional groups that bind to cobalt, formation of a complex of these monomers with cobalt and subsequent polymerization of the complex in presence of a crosslinker. The process for the removal of cobalt comprises treating the solution containing a mixture of cobalt and other metal ions with the polymer under conditions sufficient for cobalt to form a complex with the polymer and separating the polymer from the cobalt depleted solution.

Abstract: The present invention provides a polymer composition for the selective removal of cobalt, a process for the preparation thereof and the process for removal of cobalt, using the said polymer composition. More particularly it relates to a cross-linked polymer composition prepared by the molecular imprinting technique. The preparation of the cross linked polymer involves selection of vinyl monomers bearing functional groups that bind to cobalt, formation of a complex of these monomers with cobalt and subsequent polymerization of the complex in presence of a crosslinker. The process for the removal of cobalt comprises treating the solution containing a mixture of cobalt and other metal ions with the polymer under conditions sufficient for cobalt to form a complex with the polymer and separating the polymer from the cobalt depleted solution.

Abstract: The present invention relates to an inclusion complex containing monomers with multiple unsaturated and cyclic compound s represented by the general formula Ax By, wherein the monomer containing X units of vinyl unsaturation and B is a cyclic host compound with Y units, and also, a process for the preparation of soluble homo-polymers with unsaturation group from the inclusion complex.