Patents Represented by Attorney Loretta A. Dilworth & Barrese Miraglia
  • Patent number: 5874152
    Abstract: The invention relates to a method of making a composite laminate comprising the steps of providing unidirectionally oriented parallel fibres (UD filaments) (3) with a resin matrix to form a composite UD layer and laminating a plurality of UD layers to form a UD crossply laminate (18). In the method of the invention, the UD filaments are impregnated with a melt of a resin which in the uncured form solidifies below a certain temperature (Tm). Thereupon the UD filaments-containing resin is cooled to a temperature below Tm to produce the composite UD layer. The produced composite UD layer is irreversibly cured before or after lamination. Notably latent curing resins are suitable. The impregnation is preferably conducted by coating a process belt (8) with solid resin (6), laying the UD filaments onto the resin, and heating the resin so as to form the resin melt. The heating of the resin is preferably conducted by means of IR irradiation (11).
    Type: Grant
    Filed: July 25, 1996
    Date of Patent: February 23, 1999
    Assignee: AMP-AKzo Linlam VoF
    Inventor: Erik Middelman
  • Patent number: 5852094
    Abstract: Described is a coating composition comprising an organic compound comprising at least two acetoacetate groups or acetamide groups or a combination of these two groups and the oxide of a metal of Group IIa of the Periodic Table. The metal preferably is calcium or magnesium. The composition may further comprise a compound comprising at least two .alpha.,.beta.-ethylenically unsaturated groups and, optionally, a catalyst for the reaction of the acetoacetate groups and/or acetamide groups with the .alpha.,.beta.-ethylenically unsaturated groups.
    Type: Grant
    Filed: November 21, 1996
    Date of Patent: December 22, 1998
    Assignee: Akzo Nobel NV
    Inventors: Arie Noomen, Petrus Johannes Maria van Kesteren, Nicolaas Antonius Maria Schoonderwoerd