Did You Know...
...that while attempting to develop a super strong glue, 3M employee Spencer Silver accidentally developed a glue that was so weak it would barely hold two pieces of paper together? However, his colleague Art Fry needed the glue. Fry sang with his church choir and marked the pages of his hymnal with small scraps of paper that often fell out. He used Silver's glue to hold the papers in place. Today we call this invention Post-it Notes.
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| Number | Title | Issue Date |
| 7294191 | Pure-coloured, readily dispersible iron oxide red pigments with high grinding stability The present invention relates to pure-coloured, readily dispersible iron oxide red pigments having high grinding stability, to a process for preparing them, and to their use. ... | 11/13/2007 |
| 6830615 | High surface area incineration product The present invention relates to a high surface area product and its production from solid-containing material, such as waste effluent from a paper-treating plant. The high surface area product comprises calcium carbonate, and is useful as a coefficient of friction ... | 12/14/2004 |
| 6511536 | Pigment in thin flakes coated with calcium carbonate and a method for manufacturing the same Pigments of flake substrate coated with calcium carbonate wherein the surface of the flake substrate is coated with fine particles of calcium carbonate. The pigment may be manufactured by a method where calcium carbonate in fine particles is separated out... | 01/28/2003 |
| 6423333 | Sealing or filling tissue defects using polyfunctional crosslinking agents and protein polymers Proteinaceous polymers having repetitive units from naturally occurring structural proteins are employed as backbones for functionalities for crosslinking to provide strongly adherent tissue adhesive compositions for bonding together separated tissue, and... | 07/23/2002 |
| 5326389 | Anti-corrosive pigmentary composition for coatings The invention concerns an anti-corrosive pigmentary composition characterized in that contains zinc 8-hydroxy-quinolate.... | 07/05/1994 |
| 4086123 | Zinc sulfide based pigments Pigments are disclosed comprising zinc sulfide as a host containing in solid solution at least a sufficient amount of a metal sulfide additive or dopant to alter the color of the zinc sulfide. The dopant may comprise one or more certain metal sulfides but... | 04/25/1978 |
