Abstract: Specific color imparting compounds, including pigments and catalysts are used to produce a polyester resin having a green color. The compounds are added during polymerization of the polymer and the resins produced can be utilized to make various containers or packages to hold liquids or solids.

Abstract: This invention concerns a method of charging dry terephthalic acid into a reactor which may contain glycol and be under elevated pressure and elevated temperature. According to the invention a suspension of terephthalic acid in a gas such as nitrogen is formed and this suspension is charged into the reactor.

Abstract: A copolyester resin having modified termini is disclosed, as well as the method for making and using that compound in subsequent reactions with epoxide curing compounds. The polymerization of the copolyester resin may include a compounding preparation stage for modifying the termini of the copolyester resin by reacting those end groups with an aromatic acid to alter the activation energy necessary to cure the modified copolyester resin with the epoxide compound upon mixing and heating of that mixture in a powder coating upon a substrate. The modified copolyester resin improves impact strength and leveling properties between 300.degree. and 450.degree. F., which is desirable for protection of the underlying substrate.

Abstract: A high heat resistant transparency of epoxy resins cured with adducts of trimethoxyboroxine and benzyl alcohol is disclosed to resist intense heat for these transparencies in their use on military and industrial hardware. This transparency may exist in a composite with other layers of transparent material known to those skilled in the art. The epoxy transparency layer is bound to the other transparent layers, in a variety of configurations, using an interlayer of mercaptan terminated resins. These resins greatly improve resistance to moisture permeability in and about the edges of the entire transparency.

Abstract: A high heat resistant transparency of epoxy resins cured with adducts of trimethoxyboroxine and benzyl alcohol is disclosed to resist intense heat for these transparencies in their use on military and industrial hardware. Additionally, the transparency may include phosphite or phosphate compounds to improve heat resistance, with the phosphate compound in sufficient concentrations to delay gel times such that the phenyl substituted alkyl alcohol may be eliminated from the composition. This transparency may exist in a composite with other layers of transparent material known to those skilled in the art. The epoxy transparency layer is bound to the other transparent layers, in a variety of configurations, using an interlayer of mercaptan terminated resins. These resins greatly improve resistance to moisture permeability in and about the edges of the entire transparency.

Abstract: A coating for optical members such as acrylic or polycarbonate comprising prehydrozyled alkyl silicate, polysilicic acid and monocarboxylic acid dispersed in an aqueous vinyl interpolymer and an epoxy binder containing a filler of fumed silica or aluminum oxide and a silane.

Abstract: A chemically resistant coated fabric laminate in which a rubber layer is adhered to one side of a fabric which has been dipped in a blend solution of a rubber and an adhesive. To the remaining side of the impregnated fabric is applied a rubber layer which has thereon a chemically resistant preformed film. The rubber layer containing the preformed film has a dry adhesive compound incorporated therein.

Abstract: A bottom tension boom for collecting floating material, such as an oil spill upon a body of water, has a barrier containing an upper or freeboard portion, a lower or skirt portion which is submerged in and extends downwardly into said body of water, and pleats or slack portions which extend generally vertically across the barrier. A plurality of flotation elements is attached to the freeboard portion of the barrier and thereby supports the barrier as a whole upon the water. A lattice containing a plurality of strands made from an extensible material is attached to the skirt and extends downwardly therefrom. The lower portion of the lattice is connected to a bottom tension line which is shorter in length than the corresponding portion of the barrier. The boom is towed by tow lines connected solely to the bottom tension line and effects a backward skirt inclination with respect to the position of the bottom tension line.

Abstract: The invention relates to the utilization of a pyrolyzed carbon-containing ribbon which is wrapped about a brake disk core. The ribbon which is impregnated with a bonding agent forms an outer layer when wrapped about the core. An integral brake disk is formed upon pyrolyzation of the bonding compound.

Abstract: An armor system matrix is provided, having a multiple layer system of very hard geometric objects tensionally restrained in their layers by fiber material interwoven about the objects with the objects and fiber material being bonded together by an adhesive material. The objects are substantially spherical ceramic material which may be of different dimensions, each ceramic sphere being substantially in contact with adjacent spheres on the same and adjacent parallel layers. Larger ceramic spheres may be located in the layers closer to the exposed surface of the armor system. The tensional relationship of the ceramic objects in each layer effectively distributes the impact of projectiles over a greater surface area.

Abstract: A friction segmented brake disk has a plurality of arcual segments which are rigidly fastened together by a tongue extending from at least one end portion of the segment and is received by an adjacent segment recess and fastened thereto by at least two fastening members. The tongue, recess, and fastening members all reside by the periphery of each arcual segment, substantially beyond the swept area of each segment to avoid the thermal expansion and contraction forces inherent to the swept area. In another embodiment, a rigid friction brake disk contains a plurality of arcual segments which have a slot in each end portion thereof. A clip engages the slots and is connected thereto by a fastening member. Similarly, the clip, slot and fastening members will reside on the periphery of each arcual segment, substantially beyond or outside the swept area of each segment, and thereby also minimizes thermal expansion and contraction forces inherent to the swept area.