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| Number | Title | Issue Date |
| 4053339 | Method of making composite paper hardboard panel A composite dry process hardboard includes a hardboard panel consisting of pressed defibrated and refined wood chips, plus a surface layer of paper cemented to the hardboard by a cured resin made from phenolic resin mixed with water and ethylene glycol. I... | 10/11/1977 |
| 4051291 | Gypsum wallboard A specially prepared paper bond liner, gypsum wallboard, and gypsum wallboard process which bonds the liner to the core by an adhesive confined to the paper-core interface, the adhesive comprising certain starches placed on the bond liner in their raw sta... | 09/27/1977 |
| 4043954 | Compositions and laminates made therefrom The invention relates to oil-modified phenolic resole varnishes particularly useful for impregnating paper laminates. Specifically, the invention relates to such compositions in which an economical and useful mixture of alcohols is used as the reaction me... | 08/23/1977 |
| 4032690 | Thermosensitive recording material Thermosensitive recording material for use in thermal printing, which is composed of a coating composition applied on a support, which coating composition comprises (a) a chromogenic compound, (b) an organic acid, (c) a water-soluble binder containing a c... | 06/28/1977 |
| 4025490 | Method of producing metal modified phenol-aldehyde novolak resins Metal-modified para-substituted phenol-aldehyde novolak resins suitable for use in pressure sensitive manifolding systems are produced by melting and mixing together a para-substituted phenol-aldehyde resin and a metal alkanoate salt in the presence of an... | 05/24/1977 |
| 4024311 | Electroconductive paper coating Reaction products between monomeric epichlorohydrin and a tertiary amine when applied to the surface of a substrate, such as paper, produce an electroconductive surface useful in electrographic image reproduction. Both a coated paper product and a process... | 05/17/1977 |
| 4023977 | Acrylic oligomers as melt flow modifiers of thermoplastic coatings and powders The application discloses a mixture of high molecular weight hard resins such as polymethyl methacrylate, cellulose acetate butyrate, and cellulose nitrate containing a minor proportion of a very viscous or solid oligomer of one or more vinyl monomers suc... | 05/17/1977 |
| 4020237 | Paper covered gypsum board and process of manufacture A paper covered gypsum board and a process for its manufacture, with at least one cover of the board comprising a multiply paper sheet containing a major proportion of cellulosic fibers and a minor proportion of short mineral fibers.... | 04/26/1977 |
| 4012561 | Decorative laminate with care of newsprint and wood pulp Disclosed herein are decorative laminates meeting N.E.M.A. standards which have high impact resistance, flexural strength, and low water absorption qualities suitable for surface veneering wherein the core stock paper is made from 10% to 100% of newspaper... | 03/15/1977 |
| 4007312 | Method of bonding solid lignocellulosic material, and resulting product Solid lignocellulosic material is bonded into a strong solid mass by treating with a liquid carrier containing an oxidant, and pressing under heat and pressure in a conventional unsealed press for a period of time sufficient to effect bonding by oxidation... | 02/08/1977 |
| 4000343 | Substitute textile materials composed of vinyl polymer impregnated creped tissue paper and process of producing same The production of substitute textile materials is achieved by impregnating one or more creped tissue paper sheets with an extensibility of between 3% and 100% and a weight of 15-30 grams per square meter, which may be laminated with impregnated or unimpre... | 12/28/1976 |
| 3996325 | Preparation of a three layer, fire retardant particleboard Fire retardant reconstituted cellulosic products are produced having fire retardancy substantially equal to conventional fire retardant products by impregnation of a portion of bark with a fire retardant and mixing said impregnated bark portion with anoth... | 12/07/1976 |
| 3988501 | Thermosensitive element for thermographic reproduction or registration systems A thermosensitive record medium comprising a base sheet coated with a thermosensitive mixture resulting by mixing together a crystal violet lactone and a phenolic compound in a binding and dispersing agent comprising at least 5% of nonionic cellulose ethe... | 10/26/1976 |
| 3975570 | Adhesive tapes having a pressure sensitive adhesive composition containing hydroxyethyl cellulose An adhesive composition comprising, of the total composition of 100 parts by weight, 90-99 parts by weight on a tacky copolymer of an alkyl acrylate, the alkyl group of which contains 1 to 14 carbon atoms and the average number of which carbon atoms is 4 ... | 08/17/1976 |
| 3959195 | Fractionated sawdust chipboard and method of making same A chipboard structure is disclosed which is made substantially of 100% sawdust waste material. The chipboard has a core portion which contains the coarsest particles of the sawdust, the surface portions of the chipboard containing the finest fraction of t... | 05/25/1976 |
| 3959570 | Application of precipitates of methylene ureas and products obtained A method of manufacture from a predetermined material, especially from a natural fibrous material and/or synthetic fibrous material of an article, in particular a sheet for printing or reproduction, which combines superior qualities of brightness, opacity... | 05/25/1976 |
| 3949139 | Laminar reflective platelets and compositions and articles comprising them Laminar reflective platelets are made by coating a first synthetic resin lamina on a carrier web and providing release means such as a release coat to provide for release of the lamina. A metallic lamina is coated onto the synthetic resin lamina by vapor ... | 04/06/1976 |
| 3946137 | Machineable decorative laminates This invention relates to a decorative plastic laminate preferably one having a high wear resistant decorative surface in which the various layers have controlled wear indices so as to provide the laminate with improved uniform machineable properties.... | 03/23/1976 |
| 3944698 | Gypsum wallboard and process for making same A specially prepared fiber reinforcement and improved gypsum wallboard are disclosed. The fiber reinforcement includes a multiplicity of relatively long fibers which are disposed at the interface of the core and cover sheets of the wallboard and are adhes... | 03/16/1976 |
| 3940538 | Decorative melamine laminates with high yield core stock High yield resin saturable papers containing total lignin, based on paper weight, in amounts from about 8 up to 15 percent are employed as core stock for high pressure decorative melamine laminates. At least 65 percent of the fibers should be hardwood fib... | 02/24/1976 |
