William F. Semple, a dentist, was awarded the first US Patent on chewing gum in 1869. His recipe contained powdered chalk.
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| Number | Title | Issue Date |
| 6541549 | Non-xenoestrogenic stabilizers for organic materials A non-xenoestrogenic phosphorus-containing stabilizer for organic materials is disclosed wherein the stabilizer is selected from the group consisting of phosphorus-containing compounds of the structures ##STR1## wherein y in an integer of from 6 to 20, an... | 04/01/2003 |
| 6515043 | Silicone oligomers with higher alkoxy groups An oligomer of the formula: [R3 SiO1/2 ]m [O1/2 Si(R2)O1/2 ]n [SiO3/2 R]o [SiO4/2 ]p (I) wherein each R is selected individually from the group... | 02/04/2003 |
| 6448343 | Silane vulcanized thermoplastic elastomers The formation of thermoplastic vulcanates may be accomplished with two polymers, wherein one polymer is grafted, or copolymerized with a carboxylic acid anhydride, which acid anhydride grafted polymer then is reacted with an amino silane, which reacts wit... | 09/10/2002 |
| 6414061 | Blocked mercaptosilane coupling agents for filled rubbers This invention describes novel blocked mercaptosilanes wherein the hydrogen atom of the mercaptan functionality has been substituted. The invention includes methods of preparation for the blocked mercaptosilicon compounds as well as their use in filled ru... | 07/02/2002 |
| 6319982 | Waterborne silicone adhesives, sealants and coatings Novel hindered alkoxy siloxane compounds and compositions containing hindered alkoxy siloxane compounds are provided. The compositions include a polymer/crosslinking system which is composed of a self crosslinking resin comprised of a silicone fluid modif... | 11/20/2001 |
| 6319311 | Powder coatings employing silyl carbamates Powder coating formulations which include as a component thereof a silyl carbamate of the formula: ##STR1## where R1 is a hydrocarbon or acyl group; R2 is a monovalent hydrocarbon group; R3 is alkylene, optionally interrup... | 11/20/2001 |