Blends of linear polymers with macrocyclic oligomers
April 13, 2012. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesCyclic polycarbonate oligomers and methods for their preparation and use Cyclic heterocarbonates and methods for their preparation and use Method for preparing copolycarbonates from cyclic polycarbonate oligomers Cyclic polyester oligomer and method for their preparation Method for the preparation of cross-linked polycarbonates, and compositions made therefrom Hydroquinone-bisphenol cyclic copolycarbonate oligomer Macrocyclic oligomers containing spiro(bis)indane moietes Method for preparing and polymerizing macrocyclic poly(alkylene discarboxylate) oligomers Solvent resistant polycarbonate compositions Macrocyclic filled compositions convertible to polyester composites Patent #: 5191013 InventorsApplicationNo. 867558 filed on 04/13/1992US Classes:525/177, Solid polymer derived from ethylenic reactants only derived from unsaturated hydrocarbon525/146, With a -O-C(=O)-O-, -O-C(=O)-hal or hal-C(=O)-hal group-containing reactant or polymer thereof525/148, Solid polymer derived from ethylenic reactants only is derived from a reactant containing a carboxylic acid or derivative thereof525/176, Solid polymer derived from ethylenic reactants only derived from at least one reactant containing an oxygen atom525/394, Mixed with -O-C(=O)-O-, hal-C(=O)-O-, or hal-C(=O)-hal containing reactant or polymer derived therefrom525/425, Mixed with polycarboxylic acid or derivative and polyhydroxy reactant or polymer therefrom525/433, Mixed with O-C(=O)-O-, hal-C(=O)-, or hal-C(=O)-hal reactant or polymer derived therefrom525/462, Solid polymer derived from O-C(=O)-O- or hal-C(=O)-containing reactant and polyhydroxy reactant525/466, Mixed with polycarboxylic acid or derivative and polyhydroxy reactants or polymer thereof; or di- or higher ester of polycarboxylic acid as sole reactant or polymer therefrom525/488, With carboxylic acid or derivative reactant or polymer derived therefrom525/535Solid polymer derived from sulfur-containing reactantExaminersPrimary: Buttner, DavidAttorney, Agent or FirmInternational ClassesC08L 067/02C08L 069/00 AbstractIntimate blends of macrocyclic oligomer compositions, such as cyclic polycarbonate or poly(alkylene dicarboxylate) oligomer mixtures, are blended with linear polymers, especially addition polymers. The blends flow easily and are frequently homogeneous. The macrocyclic oligomers therein may be polymerized to produce resin blends having advantageous properties.Field of SearchWith a -O-C(=O)-O-, -O-C(=O)-hal or hal-C(=O)-hal group-containing reactant or polymer thereofSolid polymer derived from ethylenic reactants only is derived from a reactant containing a carboxylic acid or derivative thereof Solid polymer derived from ethylenic reactants only derived from at least one reactant containing an oxygen atom Solid polymer derived from ethylenic reactants only derived from unsaturated hydrocarbon Mixed with -O-C(=O)-O-, hal-C(=O)-O-, or hal-C(=O)-hal containing reactant or polymer derived therefrom Mixed with carboxylic acid or derivative reactant or polymer derived therefrom Mixed with polycarboxylic acid or derivative and polyhydroxy reactant or polymer therefrom Mixed with O-C(=O)-O-, hal-C(=O)-, or hal-C(=O)-hal reactant or polymer derived therefrom Solid polymer derived from O-C(=O)-O- or hal-C(=O)-containing reactant and polyhydroxy reactant Mixed with polycarboxylic acid or derivative and polyhydroxy reactants or polymer thereof; or di- or higher ester of polycarboxylic acid as sole reactant or polymer therefrom Solid polymer derived from sulfur-containing reactant | |
