Abstract: A hydrophilic copolymer is designed and synthesized by copolymerization of an acidic monomer and a second hydrophilic monomer. The copolymer is non-thrombogenic, hydrophilic and incorporates reactive functional groups. The copolymer can then be covalently attached to a primer/base coat through its functional groups, to form a durable lubricious coating on medical devices. A coating formed of the polymer on a surface is non-thrombogenic and non-cytotoxic. The coating shows good stability in gamma ray, e-beam and ethylene oxide sterilization.

Abstract: Biocompatible, lubricious, highly durable coatings for medical devices are formed from a highly adherent base-coat and a hydrophilic top-coat that is chemically grafted to the base-coat and has a chemically cross-linked structure. The base-coat constitutes a carboxylic acid containing polymer. The top-coat includes a carboxylic acid containing hydrophilic polymer and chromium (III) ion as the cross-linking agent. The coating possesses biocompatibility and gamma ray-sterilization stability. The coated products in aqueous media display an unmatched combination of lubricity, abrasion resistance, and chemical stability.

Abstract: An insertion device for an intra-ocular lens (IOL) has a bilaminar, lubricious coating on the surface which contacts the IOL as it is being inserted into the eye. The bilaminar coating includes a highly lubricious top coat, and a polymeric base coat which is both highly adherent to the surface of the insertion device, and which has functional groups capable of grafting the base coat to the top coat. In its completed form, the bilaminar coating is essentially permanent, and exceedingly lubricious when wet, allowing the IOL to be advanced smoothly and without damage through the insertion device. The top coat may include hyaluronan, or another material capable of providing the required lubricity.

Abstract: Polymer blends of at least one polar polymer are prepared by admixture with a poly(vinyl alcohol) and a (meth)acrylate copolymer also containing vinyl amide and/or unsaturated acid units. The ternary compositions have attractive processing and performance properties.

Abstract: Polymers containing a high percentage of vinyl alcohol units may be blended with copolymers of alkyl methacrylates and unsaturated organic acids and processed into sheet, film, fiber and other objects which exhibit an useful balance of barrier and strength properties.

Abstract: Polymers containing a high percentage of vinyl alcohol units may be blended with copolymers of alkyl methacrylates and unsaturated organic acids and processed into sheet, film, fiber and other objects which exhibit an useful balance of barrier and strength properties.

Abstract: Polymers containing a high percentage of vinyl alcohol units may be blended with copolymers of alkyl methacrylates and unsaturated organic acids and processed into sheet, film, fiber and other objects which exhibit an useful balance of barrier and strength properties.

Abstract: Polymers containing a high percentage of vinyl alcohol units may be blended with copolymers of alkyl methacrylates and unsaturated organic acids and processed into sheet, film, fiber and other objects which exhibit an useful balance of barrier and strength properties.

Abstract: Blends of starch with acrylic polymers containing at least one of copolymerized acid or amide groups may be melt-processed into useful thermoplastic articles.

Abstract: Polymers containing a high percentage of vinyl alcohol units may be blended with copolymers of alkyl methacrylates and unsaturated organic acids and processed into sheet, film, fiber and other objects which exhibit an useful balance of barrier and strength properties.

Abstract: Polymers containing a high percentage of vinyl alcohol units may be blended with copolymers of alkyl methacrylates and unsaturated organic acids and processed into sheet, film, fiber and other objects which exhibit an useful balance of barrier and strength properties.

Abstract: Polymer blends of at least one polar polymer are prepared by admixture with a poly(vinyl alcohol) and a (meth)acrylate copolymer also containing vinyl amide and/or unsaturated acid units. The ternary compositions have attractive processing and performance properties.

Abstract: A process for producing a cured composite and flexible light pipe, in which a molten cladding polymer and a crosslinkable core mixture are concurrently and coaxially extruded through a core mixture delivery tube of a coextrusion die, the extruded tubular cladding is filled with the extruded crosslinkable core mixture, and the crosslinkable core mixture is cured within the tubular cladding.

Abstract: Polymers containing a high percentage of vinyl alcohol units may be blended with copolymers of alkyl methacrylates and unsaturated organic acids and processed into sheet, film, fiber and other objects which exhibit an useful balance of barrier and strength properties.

Abstract: Blends of starch with acrylic polymers containing at least one of copolymerized acid or amide groups may be melt-processed into useful thermoplastic articles.

Abstract: By addition of methacrylate/unsaturated acid and/or vinyl amide copolymers, poly(vinyl alcohol) can be melt-processed and co-extruded with structural polymers like poly(ethylene terephthalate) to form multilayer films and objects with good adhesion between the components and good barrier properties. The films and objects can be separated and re-used by dissolution in water of the poly(vinyl alcohol)/methacrylate polymer blends and recovery of the structural polymer.

Abstract: Process for cured composites and flexible light pipe, in which a molten cladding polymer and a crosslinkable core mixture are coaxially extruded through a coextrusion die, the cladding is filled with the crosslinkable core mixture, and the crosslinkable core mixture is cured within the cladding.

Abstract: Blends of starch with acrylic polymers containing at least one of copolymerized acid or amide groups may be melt-processed into useful thermoplastic articles.

Abstract: Polymers containing a high percentage of vinyl alcohol units may be blended with copolymers of alkyl methacrylates and unsaturated organic acids, the copolymers prefereably containing an adhesion-promoting functionality, the blend preferably containing low levels of a plasticizer to improve melt flow, and the blends in molten form utilized as hot melt adhesives for the bonding of wood, paper, and other celulosic articles.

Abstract: Polymers containing a high percentage of vinyl alcohol units may be blended with copolymers of alkyl methacrylates and unsaturated organic acids and processed into sheet, film, fiber and other objects which exhibit an useful balance of barrier and strength properties.