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| Number | Title | Issue Date |
| 5372867 | Polyester film for laminated metal sheet drawing and processing containing solid lubricant and having specified protrusion rate A polyester film for metal sheet lamination processing which comprises a co-polyester containing a lubricant having an average particle diameter of 2.5 μm or less and the co-polyester having a melting point of 210° to 245° C.; and wherein the refractiv... | 12/13/1994 |
| 4192904 | Tubular packaging material Disclosed is a packaging material suitable for manufacturing synthetic sausage casings, comprised of a cellulose hydrate base layer and a layer of vinylidene chloride containing copolymer on the base layer, as well as several methods for preparing the pac... | 03/11/1980 |
| 4158594 | Bonded, differentially creped, fibrous webs and method and apparatus for making same A method is disclosed for forming a strong, soft, fibrous sheet material having substantial stretch in all directions in its own plane, by formimg a web of cellulosic fibers having a basis weight of from about 5 to about 55 pounds per ream of 2,880 square... | 06/19/1979 |
| 4148955 | Matt and scratch-resistant films and process for their manufacture Matt films having a scratch-resistant surface are obtained from moulding compositions reinforced with glass spheres if the extruded film is stretched while still in the melt-fluid state, and then allowed to cool. These films are suitable for use as coatin... | 04/10/1979 |
| 4145860 | Simulated spanish mission tile A tile, generally used for roofing purposes, made of metal or synthetic material, has two portions, one portion has a convex upper surface and another portion has a concave upper surface. These portions are integral with each other and do not overlap one ... | 03/27/1979 |
| 4119750 | Sandwich panel structure A structural panel material of the sandwich-type construction includes inner and outer facings and a core bonded between the facings. The core includes a plurality of blocks of lightweight core material, such as rigid or semi-rigid plastic foam, balsa woo... | 10/10/1978 |
| 4118261 | Method for reinforcing sheet material A method of reinforcing fiberglass sheet material in which an inflatable envelope having a plurality of marginally sealed perforations therethrough is applied to the surface of the material. A wet layer of settable reinforcing material is then applied ove... | 10/03/1978 |
| 4112195 | Laminable convertible molding for hand rails and the like A composite molding structure combines a plurality of laminated body members with matingly engageable channels and extensions sized and shaped to at least partially interfittingly retain said body members from movement relative to one another, and filling... | 09/05/1978 |
| 4112185 | Modified mineral supports Modified porous mineral carriers in which the surfaces are covered by a cross-linking polymer formed by reaction of at least one polyamine with at least one epoxide compound.... | 09/05/1978 |
| 4104427 | Laminated light-transmitting fire-screening panel A laminated light-transmitting fire-screening panel comprising two outer plies and at least one layer of intumescent material sandwiched between the outer plies of the panel, the arrangement being such that the layer occupies an area which is less than th... | 08/01/1978 |
| 4103059 | Light transmitting building panel A light transmitting building panel comprising a flat central sheet and upper and lower corrugated sheets secured to the opposite faces of the flat central sheet, thereby to provide a set of upper cells and a set of lower cells. The upper corrugated sheet... | 07/25/1978 |
| 4101701 | I.D. cards Novel products including I.D. cards or I.D. credit cards and laminar assemblies useful in preparing same. Essentially, the invention resides in the discovery that a layer comprising specific ethylene copolymers or mixtures thereof and a layer comprising a... | 07/18/1978 |
| 4100312 | Method of making metal-plastic laminates An improvement is obtained in the bond strength between members of a laminate comprising a plastic substrate and a metal film through a process of first laminating to the plastic substrate a thin, sacrificial, anodized metal foil while providing at the in... | 07/11/1978 |
| 4096306 | Strip material used in forming air inflated cushioning material An improved strip material which may be inflated and sealed at the site of its intended use to form cushioning material. The strip material comprises two heat sealable films which are fused together in discrete areas to form two rows of inflatable chamber... | 06/20/1978 |
| 4087581 | Opacifying super-particles Microspheric opacifying agents are provided by admixing an aqueous, partially condensed, aldehyde condensation product with an oily material containing an emulsifying agent thereby forming a water-in-oil emulsion, admixing an amphiphilic acid catalyst wit... | 05/02/1978 |
| 4086382 | Method of producing fire resistant wood products and product thereof A method of producing fire resistant wood products wherein a plurality of thin wood strips, each having a multiplicity of uniformly close spaced surface indentations, are bonded together in a stack by a binder having fine particles of inert non-flammable ... | 04/25/1978 |
| 4086383 | Supports for photographic printing paper A support for a photographic printing paper comprising (a) a polyolefin synthetic resin layer containing a white inorganic filler, (b) an opaque layer of a synthetic paper or a synthetic resin film, (c) a synthetic resin layer having a greater stiffness t... | 04/25/1978 |
| 4078108 | Adhesive layer for X-ray intensifying screens on polyethylene terephthalate support layers X-ray intensifying screen comprising a flexible support of polyethylene terephthalate an adhesive layer and a fluorescent layer in which the adhesive layer contains a polyester or copolyester of isophthalic acid with aliphatic diols, optionally in combina... | 03/07/1978 |
| 4076875 | Ornamental design Ornamental element consisting of a number of tile-shaped parts which are joined, with interspaces, on the non-exposed side to form a bond. The adjacent tile-shaped parts are given a fixed relative bond by one or more joining strips, which form one whole w... | 02/28/1978 |
| 4074011 | Topcoated phosphated bolts, nuts and washers A bolt, nut and washer is first coated with an under-coating consisting of metal phosphate, and is then coated with a second or top coating consisting of a chromium compound and one or more of a metal salt of higher fatty acid, polyolefin and polyethylene... | 02/14/1978 |
| 4071652 | Thermally conductive electrical tape Ethylene-propylene elastomer-based insulating (or semi-conductive) electrical tape is improved for long-term exposure to heat induced by high electrical current densities by the addition of sufficient thermally conductive non-black, non-reinforcing inorga... | 01/31/1978 |
| 4070523 | Printable pressure-sensitive adhesive tapes Polyketone resins are used as an ingredient of the release coating for a flexible pressure-sensitive tape. The release coatings are printable and at the same time remain effective as release agents due to the presence of the polyketone resins. The polyket... | 01/24/1978 |
| 4064302 | Composite flexible, semi-rigid materials and process for making same Novel flexible, semi-rigid fabricating material comprising a laminate of top and bottom layers of relatively thin synthetic plastic film and a middle layer of semi-rigid sheet material, said top and bottom layers being substantially wider than said middle... | 12/20/1977 |
| 4061806 | Flexible hollow fishing rod A flexible hollow fishing rod shaft of improved strength to weight ratio with respect to both bending and crushing strength, having an outer layer of longitudinally extending fiber glass filaments bonded together with a flexible plastic resin, and an inne... | 12/06/1977 |
| 4056858 | Inflatable cushion and method of making the same An inflatable cushion formed of marginally bonded superimposed flexible thermoplastic sheet material characterized by a plurality of substantially uniformly spaced thermally bonded areas each of a thickness less than the combined thickness of the componen... | 11/08/1977 |
| 4051286 | Dual adhesive method and article An automated process of making reinforced roof and wall sheets for trucks and trailers employs step-by-step advancement of the sheet rock and lateral infeed of the structural reinforcing members. As the reinforcing members are sequentially fed into regist... | 09/27/1977 |
| 4051289 | Composite airfoil construction An article such as a blade fabricated from a plurality of high-strength, reinforcing filaments embedded in a matrix material and characterized by a portion of the filaments oriented transverse to the blade longitudinal axis in a direction through the blad... | 09/27/1977 |
| 4051293 | Co-extrusion of polyvinylidene fluoride/polystyrene multiple-layered sheeting A process is disclosed for producing composite sheeting of polystyrene having a thin protective layer of vinylidene fluoride polymer. The process comprises joining a molten stream of each polymeric material in a single extruder discharge conduit such that... | 09/27/1977 |
| 4049864 | Penetration resistant barrier The disclosure relates to a barrier for resisting penetration by such as hand tools and oxy-acetylene cutting torches. The barrier comprises a layer of firebrick, which is preferably epoxy impregnated sandwiched between inner and outer layers of steel. Be... | 09/20/1977 |
| 4048360 | Low-weight dent-resistant structure and method for production thereof A low-weight, dent-resistant hollow structure composed of spaced apart ou sheets and an inner supporting core, the inner supporting core being formed from a plurality of rigid fibrous nets impregnated with a hardened resin, some of said nets being parall... | 09/13/1977 |
| 4047804 | Anti-reflection coatings for photographic bases Transparent elements useful as supports for photographic image-carrying and/or image-recording layers are provided comprising a polymeric film base having an anti-reflection coating on one surface. Image-carrying and/or image-recording layers may be coate... | 09/13/1977 |
| 4046934 | Fibrous building elements A fibrous building element such as a panel which can be used for roofs, soffits and walls. The fibrous element is coated on the side which will be positioned on the exterior of a building structure with a material which forms a crackled surface. The crack... | 09/06/1977 |
| 4044501 | Seed bed cover with improved, reinforced edge sections An improved, reinforced edge section for use on seed bed cover fabrics. The improved edge section is formed of multiple layers of the fabric along the side of the fabric. A plurality of openings is included through the multiple layer. To strengthen the ed... | 08/30/1977 |
| 4044180 | Sheet structure The new composite flexible sheet material comprises a base sheet structure made up of a thermoplastic resin layer which is flowable or fusible at predetermined sealing conditions, plus a polyester backing layer non-flowable or non-fusible at said conditio... | 08/23/1977 |
| 4041204 | Dry transfer sheets A photosensitive sheet product which enables dry transfer sheets to be made very simply by a process involving photographic exposure, water-washing to remove unexposed parts of the photosensitive material and drying. The photo-sensitive material itself co... | 08/09/1977 |
| 4039006 | Carbon filament wound cylinder and method of producing the same A carbon filament wound hollow cylinder comprising at least two carbon filament layers, an inner axial direction-wound layer and an outer circumferential direction-wound layer, characterized in that the modulus of longitudinal elasticity in the circumfere... | 08/02/1977 |
| 4038447 | Flame resistant insulation blanket A portable insulation blanket made of flame resistant materials for protecting concrete surfaces. The blanket has a flame resistant core having a plurality of layers of insulating structures. Each layer of insulating structure has a plurality of closed ce... | 07/26/1977 |
| 4035547 | Bonding element having separate heating and agitating particles A technique for bonding plastic materials includes placement of minute particles at the interface, either between the interface surfaces or within one or both of the interface materials. A particle-moving field, such as an alternating magnetic field where... | 07/12/1977 |
| 4035538 | Core block for plywood and method and apparatus for forming same A thin wood sheet is folded in a zig-zag manner to have substantially the same height and provided with cuts partially extending in the wood sheet at the folded outer end portions along the grain direction thereof. Before the wood sheet is folded in a zig-zag ... | 07/12/1977 |
| 4035539 | Structural panel A panel of spaced, parallel, translucent, outer sheets of set plastic material with an inner sheet of corrugated sheet plastic disposed therebetween with the crests of the corrugations at the opposite faces of the corrugated sheet being engaged with, and ... | 07/12/1977 |
