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Casey Donald James, Epstein Martin: Process for polymerizing a substantially pure glycolide composition. American Cyanamid Company, Dunn James T, October 14, 1975: US3912692 (222 worldwide citation)

A process for polymerizing a glycolide composition comprising heating a mixture of a substantially pure glycolide with certain small quantities of inositol and the polymeric material thus produced.


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Rao S Bezwada, Angelo G Scopelianos: Elastomeric medical device. Ethicon, Hal Brent Woodrow, February 3, 1998: US05713920 (212 worldwide citation)

Medical devices or components for medical devices formed from bioabsorbable elastomers comprising a random copolymer are disclosed. The random copolymer is a copolymer of from about 30 to about 70 weight percent of: a) .epsilon.-caprolactone, trimethylene carbonate, an ether lactone, or a mixture of ...


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Kevin Cooper, Chao C Chen, Angelo Scopelianos: Hard tissue bone cements and substitutes. Ethicon, Emil Richard Skula, October 21, 1997: US05679723 (179 worldwide citation)

Absorbable/resorbable mixtures of aliphatic polyesters of poly(lactide), poly(glycolide), poly(trimethylene carbonate), poly(p-dioxanone) and poly(.epsilon.-caprolactone) and calcium containing bone regenerating compounds such as powdered, non-fibrous calcium phosphates are described. The composites ...


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Wasserman David, Versfelt Charles Curtis: Use of stannous octoate catalyst in the manufacture of l(-)lactide-glycolide copolymer sutures. Ethicon, Kell Robert W, October 1, 1974: US3839297 (167 worldwide citation)

High molecular weight copolymers of L(-) lactide and glycolide are prepared by heating a mixture of the monomers at 200.degree.C. in the presence of a stannous octoate catalyst. The copolymers so obtained may be extruded to form filaments having utility as absorbable sutures.


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Tershansy Ronald A, Russin Nicholas C, McFarlane Finley E: Process and catalyst-inhibitor system for preparing synthetic linear polyester. Eastman Kodak Company, September 23, 1975: US3907754 (115 worldwide citation)

Catalyst-inhibitor system for the polymerization of poly(ethylene terephthalate) having excellent properties for fabrication of fibers and films. The catalyst-inhibitor system comprises a combination of organic or inorganic salts of manganese and cobalt with acetyl triisopropyl titanate and a phosph ...


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Cheuk Chung Yau, Leslie Shane Moody: Polyesters modified with 1,4-cyclohexanedimethanol having high clarity prepared utilizing an antimony containing catalyst/stabilizer system. Eastman Chemical Company, Betty J Boshears, Harry J Gwinnell, September 16, 1997: US05668243 (71 worldwide citation)

This invention relates to a polyester resin prepared by adding one or more dicarboxylic acid components to one or more glycol components containing 1,4-cyclohexanedimethanol equalling 100 mole %, the polyester resin having been prepared in the presence of a catalyst/stabilizer system consisting esse ...


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Scott E George, Douglas C Hoffman: Process for preparing copolyesters. Eastman Chemical Company, John D Thallemer, John F Stevens, January 3, 1995: US05378796 (71 worldwide citation)

The present invention relates to a process for preparing copolyesters which involves two steps. The first step is a diol interchange step, and the second step is a polycondensation step. More specifically, the process involves (I) reacting in the presence of a polycondensation catalyst a dihydroxy t ...


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Daniel J Brunelle, Jean E Bradt: Method for preparing and polymerizing macrocyclic poly(alkylene discarboxylate) oligomers. General Electric Company, William H Pittman, James C Davis Jr, August 13, 1991: US05039783 (68 worldwide citation)

Macrocyclic polyester oligomer compositions comprising alkylene isophthalate or terephthalate units or the like are prepared by the reaction of a diol with a diacid chloride in the presence of at least one amine characterized by substantially no steric hindrance around the basic nitrogen atom. The r ...