Famous Patents
3M employee and church chorister Art Fry needed something to temporarily mark pages in his hymnal. He was in luck because his colleague, Spencer Silver, accidentally developed a glue that was too weak for other purposes. After initially discouraging consumer response, Post-it Notes became a hit in 1979.
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| Number | Title | Issue Date |
| 7399813 | Flexible superabsorbent binder polymer composition A flexible superabsorbent binder polymer composition including a monoethylenically unsaturated polymer, such as carboxylic acid, sulphonic acid, or phosphoric acid, or salts thereof, and an acrylate or methacrylate ester that contains an alkoxysilane functionality, ... | 07/15/2008 |
| 7335713 | Method for preparing a flexible superabsorbent binder polymer composition A process of making the flexible superabsorbent binder polymer composition includes preparing a preneutralized monomer solution having at least about 40 mol % degree of neutralization, preparing a monomer solution including monoethylenically unsaturated monomers, on... | 02/26/2008 |
| 7312286 | Flexible superabsorbent binder polymer composition A flexible superabsorbent binder polymer composition including a monoethylenically unsaturated polymer, such as carboxylic acid, sulphonic acid, or phosphoric acid, or salts thereof, and an acrylate or methacrylate ester that contains an alkoxysilane functionality, ... | 12/25/2007 |
| 7291674 | Superabsorbent polymer The invention relates to a superabsorbent polymer comprising a composition comprising a polymeric resin composition comprising from about 55 to about 99.9 wt. % of polymerizable unsaturated acid group containing monomers, from about 0.001 to about 5.0 wt. % of inter... | 11/06/2007 |
| 7285614 | Superabsorbent polymer with slow absorption times The invention relates to hydrophilic superabsorbent polymer comprising a) from about 55 to about 99.9 wt. % of polymerizable unsaturated acid group containing monomers; b) from about 0.001 to about 5.0 wt. % of internal crosslinking agent; c) from about 0.001 to abo... | 10/23/2007 |
| 7198723 | Method using super absorbent polymers for dehydration of oil Water is separated from an emulsion of water and oil by passing the emulsion through a bed of superabsorbent polymer granules which break the emulsion and absorb water from the mixture of water and oil. An apparatus for separating water from an emulsion of water and... | 04/03/2007 |
| 7173086 | Superabsorbent polymer with high permeability The invention relates to absorptive, crosslinked polymers which are based on partly neutralized, monoethylenically unsaturated monomers carrying acid groups wherein the absorptive crosslinked polymer may be coated with a thermoplastic polymer, and have improved prop... | 02/06/2007 |
| 7169843 | Superabsorbent polymer with high permeability The invention relates to absorptive, crosslinked polymers which are based on partly neutralized, monoethylenically unsaturated monomers carrying acid groups, and have improved properties, in particular in respect of their capacity for transportation of liquids in th... | 01/30/2007 |
| 7163969 | Superabsorbent polymer aqueous paste and coating The present invention is directed to an aqueous superabsorbent polymer paste comprising from about 1 to about 5 wt % of superabsorbent particles and from about 95 to about 99 wt % of an aqueous water-soluble solution having from about 0.5 to about 5%, preferably fro... | 01/16/2007 |
| 7163966 | Superabsorbent polymer having increased rate of water absorption The invention relates to a superabsorbent polymer wherein an increased rate of water absorption is obtained by the addition of an encapsulated blowing agent. The invention relates to a superabsorbent polymer including an encapsulating blowing agent and having a vort... | 01/16/2007 |
| 7033493 | Method and apparatus using super absorbent polymers for dehydration of oil Water is separated from an emulsion of water and oil by passing the emulsion through a bed of superabsorbent polymer granules which break the emulsion and absorb water from the mixture of water and oil. An apparatus for separating water from an emulsion of water and... | 04/25/2006 |
| 5989446 | Water additive and method for fire prevention and fire extinguishing In the prevention of the spread of fires and for directly fighting fires, a cross-linked, water-swellable additive polymer in water/oil emulsion produced by an inverse phase polymerization reaction to be added to the firefighting water is disclosed. The a... | 11/23/1999 |
| 4780105 | Composition for dyeing material of synthetic aromatic polyamide fibers: cationic dye and n-alkyl phthalimide A composition for dyeing material of synthetic aromatic polyamide fibers, including a cationic dye and a dye assistant, which is a mixture of N-substituted phthalimide and an emulsifier. The N-substituted phthalimide is preferably a 2:1 mole ratio of N-bu... | 10/25/1988 |
