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| Number | Title | Issue Date |
| 5169469 | Making of trilaminates and quadlaminates for automotive vehicle seats A laminated composite in the form of a trilaminate and quadlaminate for use in the manufacture of a seat, particularly a vehicle seat, such as an automobile seat and a vehicle interior member. The laminated composite includes a seat cover material having ... | 12/08/1992 |
| 4784664 | Non-chrome tanning method The present process yields superior leather materials from limed hides, without the use of chromium salts, by combining a series of essential method steps in a sequence which yields leather having a "chrome" character. The present chromium-free tanning pr... | 11/15/1988 |
| 4690953 | Method of frothing aqueous ionic polyurethane dispersions and products produced therefrom A method of mechanically frothing and casting an aqueous ionic polyurethane dispersion to yield a mechanically frothed polyurethane foam. The method comprises admixing an aqueous ionic polyurethane dispersion with a stearate stabilizer and an optional azi... | 09/01/1987 |
| 4675232 | Self-release foam laminate A method of mechanically frothing and casting an aqueous polyurethane dispersion yields a foam which, when rolled, wound or stacked, is self-releasing from the pressure sensitive adhesive layer co-cured therewith. The method includes admixing an aqueous i... | 06/23/1987 |
| 4655210 | Foam bandage A disposable bandage, and a process for manufacturing it, which is prepared from a single sheet or strip of liquid permeable, flexible thermoplastic hydrophilic foam. The process includes coating the entire surface of one side of a foam sheet or strip wit... | 04/07/1987 |
| 4591501 | Cosmetic and pharmaceutical sheet material containing polypeptides A flexible continuous film is comprised of a physical admixture of a polypeptide, a plasticizer and a film-forming flexible polymer. When the film is moistened, the polypeptides exude therefrom.... | 05/27/1986 |
| 4590022 | Method of forming a moisture permeable polymeric sheet material A moisture vapor permeable sheet material is comprised of a homogeneous admixture of a synthetic polymer material and a protein derivative. The sheet material is moisture vapor permeable and non-penetrable by liquid water. The sheet material additionally ... | 05/20/1986 |
| 4585797 | Cosmetic and pharmaceutical sheet material containing polypeptides A flexible continuous film is comprised of a physical admixture of a polypeptide, a plasticizer and a film-forming flexible polymer. When the film is moistened, the polypeptides exude therefrom.... | 04/29/1986 |
| 4557855 | Surface active agent compositions A surface active agent is comprised of lignin sulfonic acids, and optionally, an alkylaryl sulfonic free acid with at least 10 carbon atoms and a polypeptide having a molecular weight of about 2,500 to about 15,000. In addition, a disperse dye composition... | 12/10/1985 |
| 4515637 | Collagen-thrombin compositions A method of forming a collagen-thrombin hemostatic composition is comprised of forming a homogeneous aqueous admixture of collagen and thrombin at a basic pH and lyophilizing the collagen-thrombin admixture to form a stable collagen sponge having thrombin... | 05/07/1985 |
| 4497862 | Moisture vapor permeable sheet materials A moisture vapor permeable sheet material is comprised of a homogeneous admixture of a synthetic polymer material and a protein derivative. The sheet material is moisture vapor permeable and non-penetrable by liquid water. The sheet material additionally ... | 02/05/1985 |
| 4494994 | Surface active agent compositions containing polypeptides and lignin sulfonic acid A surface active agent is comprised of lignin sulfonic acids, and optionally, an alkylaryl sulfonic free acid with at least 10 carbon atoms and a polypeptide having a molecular weight of about 2,500 to about 15,000. In addition, a disperse dye composition... | 01/22/1985 |
| 4489100 | Method of fining alcoholic beverages A method of fining and clarifying alcoholic beverages is disclosed. The method includes admixing particulate native collagen with an alcoholic beverage subsequent to fermentation. The admixture is aged for a sufficient time to allow the collagen to comple... | 12/18/1984 |
| 4440680 | Macromolecular biologically active collagen articles Macromolecular reconstituted collagen is prepared by treating natural insoluble collagen with an aqueous solution comprised of an alkali sulfate salt and an alkali metal hydroxide for at least 48 hours to saponify fats suspended within the natural insolub... | 04/03/1984 |
| 4432888 | Surface active agents based on polypeptides A surface active agent based upon polypeptides is disclosed. The surface active agent is comprised of the reaction product of an alkyl phenylsulfonic acid and a polypeptide at an acidic pH. The surface active agents produced in accordance with the inventi... | 02/21/1984 |
| 4419288 | Elastin hydrolyzate A soluble elastin partial hydrolyzate is comprised of polypeptides having at least 3.5 desmosine and isodesmosine residues/1,000 amino acid residues.... | 12/06/1983 |
| 4415628 | Moisture vapor permeable sheet materials A moisture vapor permeable sheet material is comprised of a homogeneous admixture of a synthetic polymer material and a protein derivative. The sheet material is moisture vapor permeable and nonpenetrable by liquid water. The sheet material additionally c... | 11/15/1983 |
| 4412947 | Collagen sponge A process for preparing a coherent porous collagen sheet material is comprised of forming natural insoluble particulate collagen in substantially pure form and suspending the particulate collagen in a weak aqueous organic acid solution while maintaining t... | 11/01/1983 |
| 4380474 | Polyisocyanate reaction products An article of manufacture is comprised of the reaction product of a polyisocyanate and tanned leather scrap. The product is capable of being sawed and nailed in much the same manner and has similar characteristics to particle board.... | 04/19/1983 |
| 4374121 | Macromolecular biologically active collagen articles Macromolecular reconstituted collagen is prepared by treating natural insoluble collagen with an aqueous solution comprised of an alkali sulfate salt and an alkali metal hydroxide for at least 48 hours to saponify fats suspended within the natural insolub... | 02/15/1983 |
| 4363760 | Partially hydrolyzed elastin from limed hide trimmings A method of preparing soluble partially hydrolyzed elastin is disclosed. The method involves treating insoluble elastin with a peroxide and subsequently partially hydrolyzing the treated elastin and recovering substantially pure soluble partially hydrolyz... | 12/14/1982 |
| 4327195 | Polyurethane containing polypeptides A polyurethane is comprised of the reaction product of a polyisocyanate and a polyreactive hydrogen compound having a polypeptide admixed therewith.... | 04/27/1982 |
| 4295894 | Method of preparing soluble collagen fibers A method of forming soluble collagen fibers from raw animal hides is disclosed. Raw animal hides are treated with an aqueous solution of an alkali metal hydroxide and a dehydrating agent to remove the hair and fat therefrom to yield a substantially fat-fr... | 10/20/1981 |
| 4285986 | Oligopeptides derived from collagen A method of preparing oligopeptides from collagen is disclosed. Collagen containing material is treated with an aqueous solution of a member selected from the group consisting of an alkali earth metal hydroxide, an alkali metal hydroxide and mixtures ther... | 08/25/1981 |
| 4285689 | Leather tanning composition and method A leather tanning composition comprises a sufficient amount of the reaction product of a polyaldehydic compound and a secondary amine to increase the shrinkage temperature of a hide.... | 08/25/1981 |
| 4279812 | Process for preparing macromolecular biologically active collagen Macromolecular reconstituted collagen is prepared by treating natural insoluble collagen with an aqueous solution comprised of an alkali sulfate salt and an alkali metal hydroxide for at least 48 hours to saponify fats suspended within the natural insolub... | 07/21/1981 |
| 4270912 | Stabilized tanning composition comprising a reaction product of (a) polyaldehyde (b) secondary amine and (c) an alcohol and method A leather tanning composition is comprised of the reaction product of a polyaldehydic compound, a secondary amine and a monohydric alcohol.... | 06/02/1981 |
| 4060384 | Manufacture of leather Manufacture of grain and split leather is simplified by pre-tanning hide with a chromium-free tan until its shrinkage temperature is about 170° to about 185° F, splitting the pre-tanned hide to provide a grain intermediate and a split intermediate, shav... | 11/29/1977 |
| 3941633 | Plastic laminate, article and method of making same A plastic laminate and shaped article having a polyurethane film substrate, a fabric superstrate and an intermediate layer of polyurethane foam. The polyurethane foam layer is cast upon the polyurethane film to provide a substantially integral laminate. T... | 03/02/1976 |
