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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 |
| 6232256 | Catalyst composition for the polymerization of olefins A catalyst composition is provided, which is prepared by contacting a cycloalkadienyl compound, a transition metal amide of the formula M(NMe2)m Xn, an aluminoxane, and optionally a solid support at a temperature of 0 to 1... | 05/15/2001 |
| 6166154 | Olefin polymerization catalyst composition having increased activity The invention relates to a process for the polymerization of olifins in the presence of an activated catalyst composition comprising a single site catalyst precursor and an activating cocatalyst, which comprises contacting outside of a polymerization reac... | 12/26/2000 |
| 6111034 | Static control in olefin polymerization Addition of water to a gas phase olefin polymerization reactor in amounts greater than 3 ppmv permits an increase in the level of condensable gas and facilitates operation of the reactor at an elevated dew point by ameliorating electrostatic phenomena in ... | 08/29/2000 |
| 6103657 | Catalyst for the production of olefin polymers A catalyst precursor having the formula: Aq MLn wherein each A has the formula: ##STR1## M is a metal selected from the group consisting of Group 3 to 6 elements and Lanthanide series elements; each L is a monovalent, bivalent, or tr... | 08/15/2000 |
| 6069109 | Process for the production of half-sandwich transition metal based catalyst precursors A process for the production of a catalyst precursor comprising reacting (a) a metallocene dihalide; (b) a compound of the formula: ##STR1## wherein each Q is the same or different and is independently selected from the group consisting of O, NR, CR | 05/30/2000 |
| 6054405 | Catalyst composition for the polymerization of olefins A catalyst composition for the polymerization of olefins is provided, which comprises the reaction product of a fulvene, a complex of an atom selected from Groups 3-14 and the Lanthanides, and an activating cocatalyst.... | 04/25/2000 |
| 6028151 | Catalyst composition having improved comonomer reactivity A process for producing an olefin polymer, which comprises contacting at least two olefin monomers under polymerization conditions with a catalyst composition comprising A) an aluminoxane-impregnated support prepared by contacting an aluminoxane with an i... | 02/22/2000 |
| 5904422 | Continuous squeeze flow mixing process A continuous mixing process is disclosed that provides improved dispersive mixing over conventional mixing processes. The process employs squeeze flow motion around a translating member at a Hencky strain greater than 2 and at a rate corresponding to a De... | 05/18/1999 |
| 5756417 | Catalyst compositions Catalyst compositions for the oligomerization or polymerization of olefinically unsaturated hydrocarbons, comprising a heterocyclopentadienyl of the general formula C4 AR4, wherein A is a Group V element and each R, which is connected to ... | 05/26/1998 |
| 5527752 | Catalysts for the production of polyolefins A catalyst precursor is provided which is useful, when combined with a cocatalyst, in the manufacture of polyolefins. The catalyst precursor is of the formula: ##STR1## where M is a transition metal, preferably Zr or Hf; L is a substituted or un... | 06/18/1996 |
| 5458474 | Continuous system for processing synthetic thermoplastic materials A continuous pelletizing system for pelletizing synthetic thermoplastic materials which includes: (1) a melter/mixer for at least partially melting and mixing synthetic thermoplastic material; (2) a gear pump operatively associated with the melter/mixer for in... | 10/17/1995 |
| 5453471 | Gas phase polymerization process A process for producing polymers in a gas phase reactor by continuously introducing a stream of monomer and gas into a polymerization zone while maintaining the temperature within the polymerization zone below the dew point temperature of at least one mon... | 09/26/1995 |
| 5416175 | Method for reducing sheeting during polymerization of -olefins A method for reducing sheeting during polymerization of alpha-olefins in a fluidized bed employing catalysts prone to cause sheeting which comprises feeding a material carrying a static electric charge opposite to the static charge in said bed, said oppos... | 05/16/1995 |
| 5166291 | Polyester compositions Unsaturated polyester fiber reinforced molding compounds containing low profile additives achieve moldings with improved shrinkage control, improved surface appearance, less separation and lower coefficient of thermal expansion by the addition of lactams.... | 11/24/1992 |
| 4780554 | O-silylated ketene acetals and enol ethers and method of preparation Novel O-silylated ketene acetals and enol ethers are prepared via the 1,4-hydrosilation of a hydrosilation composition selected from the group consisting of aminosilanes, siloxanes and alkylalkoxysilanes with an ,ଲ-unsaturated carbonyl in the... | 10/25/1988 |
| 4717518 | Novel process for making polyurethane products which require reduced crushing in preventing said products from substantially shrinking or changing dimensionally upon cooling A process for making molded high resilience polyurethane cellular products which require reduced crushing in preventing the products from substantially shrinking or changing dimensionally upon cooling which comprises: exposing the curing product to atmosp... | 01/05/1988 |
| 4690955 | Polyether silicone copolymers with mixed hydroxy alkoxy capping for stabilizing high solid content, molded, flexible urethane foam This invention describes novel molded flexible polyurethane foam surfactants which can be used in foam having high concentrations of reinforcing graft copolymer solids. The invention also describes the improved process for making these foams using the nov... | 09/01/1987 |
| 4599441 | Process for preparing organohalosilanes utilizing copper halide-aluminum halide catalysts This invention relates a process for the redistribution/disproportionation of organohalosilanes utilizing copper halide-aluminum halide complex catalysts.... | 07/08/1986 |
| 4594366 | Connected branched polyols and polyurethanes based thereon Connected branch polyols comprising a core segment having a defined molecular weight, one core branch unit directly connected to each end of the core segment, at least one additional branch unit at each end connected directly or indirectly to each core br... | 06/10/1986 |
| 4585643 | Process for preparing chlorosilanes from silicon and hydrogen chloride using an oxygen promoter Chlorosilanes with an enhanced hydrogen content are selectively produced in the direct reaction of silicon with hydrogen chloride at elevated temperatures by treating the silicon with a source of oxygen during the process. A process is also provided for p... | 04/29/1986 |
| 4585829 | Internal mold release for reaction injection molded polyurethanes A method of imparting internal mold release properties to reaction injection molding polyurethane compositions by the addition of a perfluoroalkylorganocarboxylic acid or a salt thereof. This invention also relates to the production of novel perfluoroalky... | 04/29/1986 |
| 4548842 | Fatty ethenoid acylaminoorganosilicon compounds and their use in compositions for coating glass Fatty ethenoid acylaminoorganosilicon compounds have been found to enhance the surface properties of glass articles. The fatty ethenoid acylaminoorganosilicon compound can be applied as a coating to the glass article's surface either alone or in combinati... | 10/22/1985 |
| 4514319 | Antifoam composition containing hydrocarbon-silicon copolymer, hydrophobic filler and hydrocarbon oil Hydrocarbon oil based antifoams compositions containing a hydrocarbon-silicon copolymer, a hydrophobic filler, an organo-silicone surfactant, a hydrocarbon carrier oil and optionally a silicone oil act to effectively defoam concentrated solutions, includi... | 04/30/1985 |
