Assignee: Freeman Chemical Corporation

Location: PortWashington, WI
No. of patents: 26

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Number	Title	Issue Date
4892919	Terephthalic containing hybrid castable resins Hybrid resins result from the combination of the urethane and unsaturated polyester technology. Improved resin casting and laminate properties are obtained when polyalkylene terephthalate unsaturated polyesters are employed, in lieu of the isophthalic pol...	01/09/1990
4800123	In-mold scratch resistant coating for peroxide curable urethane elastomers A scratch resistant coating for peroxide curable urethane elastomers comprises a radiation curable composition including at least one polyfunctional monomer having three or more acryloloxy groups per molecule, preferably five or more acryloloxy groups per...	01/24/1989
4737390	Non-slip coating for molded articles Non-slip properties are imparted to molded plastic articles by adhering a layer of latex or a latex-impregnated sheet material onto the surface of the molded article. Preferably, the latex layer is applied prior to thermoset curing of the molded article a...	04/12/1988
4583691	Spray gun and solvent cleaning of same A spray gun for dispensing plural component foam forming materials includes a mixing chamber having a plurality of entry ports for the individual components. A sliding rod is used to open and close the entry ports and a solvent tank is disclosed for clean...	04/22/1986
4517326	Aqueous liquid filled polyurethane gels and method of making the same A liquid-filled polyurethane elastomer gel is fabricated from water, organic glycol and a polyisocyanate prepolymer. The prepolymer is formed from organic di-isocyanate and organic diol or triol having a molecular weight of 3,000 to 10,000 and containing ...	05/14/1985
4438072	Continuous stream mixer having variable dwell time chamber with auger A mixing apparatus includes a dwell chamber located between two mixing heads. An elongate, reverse-twist auger is provided within the dwell chamber. Valves are provided to permit washing the mixing apparatus and a dispensing valve includes the capability ...	03/20/1984
4425207	Dual cure coating compositions Dual cure coating compositions are prepared by one of the following techniques: aminoplast crosslinking with residual hydroxy present on extended acrylated or UV cure polymers; oxidative crosslinking of backbone drying oil unsaturation following UV cure; ...	01/10/1984
4422996	Method for making coated molded articles A method for producing coated, molded, fiber-reinforced thermoset plastic articles having an adherent coating in heated matched metal molds. The coating composition includes a polyurethane polyacrylate which is a reaction product, substantially free of un...	12/27/1983
4417001	Low smoke isocyanurate modified urethane foam and method of making same Low smoke isocyanurate modified polyurethane foams are prepared from polyols and a stoichiometric excess of reactive isocyanates providing an --NCO/--OH index of 1.3-3.0, preferably from 1.6-2.3. Catalysts for the trimerization reaction of the isocyanate ...	11/22/1983
4377457	Dual cure coating compositions Dual cure coating compositions are prepared by one of the following techniques: aminoplast crosslinking with residual hydroxy present on extended acrylated or UV cure polymers; oxidative crosslinking of backbone drying oil unsaturation following UV cure; ...	03/22/1983
4369224	Glass fiber reinforced laminate Glass fiber reinforced plastic laminates including randomly oriented glass fibers, embedded within unsaturated polyester resins, are provided over at least one surface thereof with a gel coat, essentially free of the glass fibers. The gel coat is formed f...	01/18/1983
4366109	Method for making coated molded articles A method for producing coated, molded, fiber-reinforced thermoset plastic articles having an adherent coating in heated matched metal molds. The coating composition includes (A) a blocked polyisocyanate which is the reaction product, essentially free of unreac...	12/28/1982
4295907	Method of making glass fiber reinforced laminate Glass fiber reinforced plastic laminates including randomly oriented glass fibers, embedded within unsaturated polyester resins, are provided over at least one surface thereof with a gel coat, essentially free of the glass fibers. The gel coat is formed f...	10/20/1981
4293659	Composition for coating molded articles A method for producing coated, molded, fiber-reinforced thermoset plastic articles having an adherent coating in heated matched metal molds. The coating composition includes (A) a blocked polyisocyanate which is the reaction product, essentially free of unreac...	10/06/1981
4289684	Sheet molding compound Sheet molding compound is prepared from unsaturated polyester resin syrup, particulate fillers, randomly oriented reinforcing fibers, a polyhydroxy polyacrylate or polyhydroxy polymethacrylate and an organic polyisocyanate. At the time of manufacturing th...	09/15/1981
4269745	Styrene suppressed unsaturated polyester resin compositions An unsaturated polyester resin composition includes small quantities of hydrocarbon wax and small quantities of an unsaturated alkyd resin formed from the reaction of linseed oil fatty acids, alpha, beta-ethylenically unsaturated dicarboxylic acid and gly...	05/26/1981
4232085	Flexible polyurethane foam having a low flame spread index A flexible polyurethane foam having a low flame spread index is produced by combining polyol (preponderantly diol and/or triol) with polyisocyanate (preponderantly diisocyanate) in the presence of a foaming catalyst and a blowing agent. By combining at le...	11/04/1980
4223068	Rigid polyurethane foam containing polyester residue digestion product and building panel made therefrom Rigid polyurethane foam is produced from polyisocyanate and polyol wherein 5-30% by weight of the polyol ingredient is a digestion product of polyalkylene terephthalate residues or scraps digested with organic polyols. The resulting rigid polyurethane foa...	09/16/1980
4216306	Film-forming polymerizable resin of benzophenone dianhydride, epoxy compound and unsaturate carboxylic acid A film-forming polymerizable resin is produced from combining acrylic acid, the diglycidyl ether of N-butyl diol and 3,3',4,4'-benzophenone tetracarboxylic dianhydride (BTDA). The diglycidyl ether of N-butyl diol is combined with BTDA and sufficient acryl...	08/05/1980
4175072	Light-colored unsaturated polyester resins containing at least 2% bromine by weight Light-colored unsaturated polyester resins containing at least 2% by weight bromine can be prepared by using at least a portion of the glycol ingredient dibromo neopentyl glycol and by using from 5 to 85 mol percent of tetrahydrophthalic acid or anhydride...	11/20/1979
4148854	Matched die molding of fiber reinforced plastic articles Lightweight glass fiber reinforced plastic articles are produced in matched dies by combining fibrous reinforcing materials, such as glass fibers, with a foamable unsaturated polyester resin composition. The matched dies are closed and compressed so that ...	04/10/1979
4093768	Copper foil electrical laminate with reinforced plastics Laminates of reinforced plastics and copper foil are prepared with a small quantity of benzotriazole in the plastic ingredient. The resulting laminate has excellent bond between the plastic and the copper foil and hence can be employed as an electrical ci...	06/06/1978
4078015	Copolymerizable compositions and method of making the same Useful copolymerizable compositions include 10 to 50 parts by weight of (I) a polymerizable diurethane monomer having the general formula ##STR1## wherein R1 is --H; or --CH3 ; R2 is --H; --CH3 ; or --C2	03/07/1978
4048104	Polyisocyanate prepolymers from scrap polyester and polyurethane foam products obtained therefrom Polyisocyanate prepolymers for use in preparing polyurethane products elastomers, adhesives and foams, are prepared by combining (1) organic polyisocyanate with (2) polyols which are the hydroxyl-terminated digestion products of (a) waste or scrap polyalk...	09/13/1977
3954274	Clay tile pipe joint seal containing foamed unsaturated polyester resin An improved joint seal for a clay tile pipe having bell and spigot configurations is provided with unsaturated polyester resin in a foamed, low density state, preferably below about 50 pounds per cubic foot....	05/04/1976
3947620	Light transmissive laminates Multiple layer light transmissive laminates and a method for making them. Such laminates are particularly adapted for use as glazing materials. The laminates retain light transmissivity after exposure to elevated temperatures. The laminates include two or...	03/30/1976

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Assignee: Freeman Chemical Corporation