Did You Know...
...that when IBM conducted a market study of Chester Carlson's invention in 1959, the company concluded that it would take only 5000 units of his new product to saturate the market? IBM therefore declined to be part of the new product introduction. Too bad for IBM. Carlson's invention was the xerography process, and his new product was the beginning of the Xerox Corporation. It is estimated that every day, worldwide, 3,000,000,000 copies are made!!
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| Number | Title | Issue Date |
| 4336070 | Process for preparing porous shaped material of acylated chitin derivative A process for producing a porous shaped material of acylated chitin derivative wherein a soluble derivative of chitin is acylated, characterized in that an aqueous solution of the derivative of chitin containing a diluent, a porosity-regulating agent and ... | 06/22/1982 |
| 4334061 | Process for recovery of polyol fatty acid polyesters A process for recovering polyol fatty acid polyesters from the crude reaction product in which it is produced by contacting with an aqueous washing medium in the presence of an emulsion decreasing organic solvent so that the alkali metal fatty acid soaps ... | 06/08/1982 |
| 4309534 | Renatured chitosan and process of making same Renatured chitosan having an optical rotation in solution that is at least 20% more negative than that of untreated chitosan and the process of making same. The process for preparing such renatured chitosan is accomplished by aging a solution of chitosan ... | 01/05/1982 |
| 4308377 | Shaped material comprising denatured chitin and process for preparing same A shaped material at the least of which surface layer comprises a denatured chitin obtained by acylation of de-N-acetylated etherified chitin represented by the following general formula: wherein R represents a carboxyalkyl group with two to four carbon atoms,... | 12/29/1981 |
| 4304905 | Method for preparing a carboxyalkylated chitin and a derivative thereof Disclosed herein a method for preparing carboxyalkylated chitin from chitin and a method for preparing a de-acetylated substance of the carboxyalkylated chitin.... | 12/08/1981 |
| 4301067 | Chitin containing poly-ion complex This invention relates to a poly-ion complex comprising chitin or N-acylchitosan derivative having carboxymethyl and polyelectrolyte.... | 11/17/1981 |
| 4293098 | Recovery of active chitin and enhanced protein meal Active chitin is recovered from shellfish waste in a mechanical process without chemical additives. Shellfish waste is subjected to drying followed by grinding and treatment in an air classifier to separate the same into two major components, one being pr... | 10/06/1981 |
| 4286087 | Chitin powder and process for making it A friable, dispersible microcrystalline chitin powder and a process of making same by treating particulate chitin at an elevated temperature with phosphoric acid, particularly with phosphoric acid diluted with a lower aliphatic alcohol, separating the tre... | 08/25/1981 |
| 4282351 | Chitosan-glucan complex, method for its production and end uses A method for preparing a chitosan-glucan complex is disclosed, which comprises the steps of subjecting filamentary fungal masses from certain fungal species such as Allomyces, Aspergillus, Penicillium, Mucor, Phycomyces, Choanephora, Zygorrhynchus and lik... | 08/04/1981 |
| 4275194 | Chitosan-iodine adduct A novel chitosan-iodine adduct wherein iodine is included in chitosan molecule is useful as a deodorant, a sterilizer or a disinfectant since the adduct holds iodine in a stable form and can release active iodine gradually into the environment as occasion... | 06/23/1981 |
| 4267313 | Saccharide derivative having ureido group A saccharide derivative having ureido group having 100 to 1% of N-carbamoyl-D-glucosamine unit, 0 to 90% of D-glucosamine unit and 0 to 70% of N-acetyl-D-glucosamine unit. The saccharide derivatives having ureido group can be used as fabricated products, ... | 05/12/1981 |
| 4232025 | Polymeric insecticidal compositions of matter Reaction products of tetrahydro-2-(nitromethylene)-2H-1,3-thiazine and certain oxidized polysaccharides, useful as insecticides.... | 11/04/1980 |
| 4223023 | Nonabsorbable lipid binder The use of chitosan as a food additive or as a pharmaceutical preparation to reduce the absorption of lipids is disclosed. The chitosan, as such or in the form of fatty acid complex, may be admixed with food in a minor quantity; for example, an amount of ... | 09/16/1980 |
| 4195175 | Process for the manufacture of chitosan This invention deals with a novel process of manufacturing chitosan from chitin with reduced temperatures, increased reaction rates involving higher alkali-to-solids deacetylation ratios, and a quiescent air-expelled final deacetylation step. Recovery of ... | 03/25/1980 |
| 4165433 | Method for converting dextro to levo rotatory chitin Method for converting dextro rotatory chitin to levo rotatory chitin comprising dissolving chitin in a composition containing dimethyl acetamide, N-methyl-pyrrolidone or mixture thereof and lithium chloride.... | 08/21/1979 |
| 4134412 | Hair setting lotion containing a chitosan derivative Hair setting lotion consisting of an aqueous or aqueous-alcoholic solution of a film-forming resin which contains a water soluble salt of chitosan.... | 01/16/1979 |
| 4125708 | Chitosan modified with anionic agent and glutaraldehyde Superoxy-anion-forming metals, such as chromium, manganese, and the like, are removed from materials containing the same by contacting the material with an anionically-modified, nitrogen-containing polymer, such as sulfite-modified, sulfate-modified, or c... | 11/14/1978 |
| 4119619 | Emulsification method for the processing of kriel to produce protein, lipids and chitin The method for the processing of kriel to produce protein, lipids and chitin comprises emulsification of lipids by intensively stirring kriel in an aqueous medium. The resultant emulsion of lipids is separated from the kriel mass and from the kriel mass p... | 10/10/1978 |
| 4076930 | Polysaccharide polyols Hydroxyalkyl ethers of hydroxyalkoxy polysaccharides are prepared by reacting the corresponding polysaccharide first with an epoxide in an aqueous alkaline medium, and then with an epoxide in the presence of a Lewis acid catalyst in a nonaqueous, nonalcoh... | 02/28/1978 |
| 4066735 | Process for demineralization of crustacea shells This disclosure is concerned with the demineralization of crustacea shells and the like, before or after protein removal therefrom, with sulfurous acid, thus to convert the calcium carbonate of the shell to calcium bisulfite solution which may be separate... | 01/03/1978 |
| 4063016 | Chitin complexes with alcohols and carbonyl compounds New compositions of matter comprising complexes of chitin with lower molecular weight alcohols, aldehydes and ketones have been discovered. These complexes are useful in the solution and purification of chitin and in the preparation of modified chitins fo... | 12/13/1977 |
| 4059457 | Chitin solution Solutions of chitin in dimethylacetamide, N-methylpyrrolidone or mixtures of these in combination with a minor proportion of lithium chloride.... | 11/22/1977 |
| 4059097 | Method of minimizing tissue reaction during surgery with chitin Natural or synthetic rubber surgical elements such as tubing, catheters, drains and gloves are "lubricated" so as to prevent sticking during storage, and permit easier emplacement, such as putting on the gloves by a surgeon or nurse, by applying to the su... | 11/22/1977 |
| 4029727 | Chitin films and fibers A new method for producing high-strength films, fibers and other shaped articles from chitin has been discovered, whereby an anhydrous solution of chitin is made into the desired shape, the chitin is insolubilized with an organic non-solvent for the chiti... | 06/14/1977 |
| 4027068 | Use of chitin derivatives in automobile products A method of using chitin derivatives as defoggers for clear surfaces and as deodorizers is disclosed.... | 05/31/1977 |
| 4000353 | Hydroxylated polymers useful as additives for fuels and lubricants Hydroxylated polymeric additives useful as additives, for example as dispersants for lubricants and hydrocarbon fuels, and multi-functional dispersant-viscosity index improvers for lubricants, can be prepared by the reaction of metal salts of polyols with... | 12/28/1976 |
| 3989535 | Solution of poly(N-acetyl-D-glucosamine) Poly(N-acetyl-D-glucosamine) is soluble in hexafluoroisopropyl alcohol and hexafluoracetone sesquihydrate. The solutions formed may be wet or dry spun into filaments, or cast into films or solid articles, which may be used as absorbable surgical sutures, ... | 11/02/1976 |
| 3988411 | Spinning and shaping poly-(N-acetyl-D-glucosamine) Poly(N-acetyl-D-glucosamine) is soluble in hexafluoroisopropyl alcohol and hexafluoracetone sesquihydrate. The solutions formed may be wet or dry spun into filaments, or cast into films or solid articles, which may be used as absorbable surgical sutures, ... | 10/26/1976 |
| 3953608 | Cosmetic compositions for the skin containing a chitosan derivative Chitosan derivatives formed by acylation of chitosan with a saturated or unsaturated organic diacid anhydride are employed as a skin moisturizing agent in a cosmetic composition comprising an aqueous solution containing 0.1-20 percent by weight of said ch... | 04/27/1976 |
