Houghton Technical Corp. Patent applications |
Patent application number | Title | Published |
20140246132 | Aqueous Quenching Media and Use Thereof in Quenching Metal Substrates - Aqueous media for quenching metal substrates are provided and contain (i) a polyvinylpyrrolidone/polyvinylcaprolactam copolymer and (ii) one or more of a second polymer, which is selected from (a) a substituted oxazoline polymer; (b) a poly(oxyethylene-oxyalkylene)glycol; or (c) a polyvinylpyrrolidone polymer. The quenching bath provides reduced cooling rates through the martensite temperature ranges. Also provided are processes for quenching metal substrates using these quenching media. | 09-04-2014 |
20130334173 | Methods and Compositions for Acid Treatment of a Metal Surface - The invention relates to compositions and methods that are useful in etching a metal surface. In particular, the invention relates to novel acid compositions and methods of using such compositions in etching a metal surface, preferably an aluminum surface prior to anodizing to dissolve impurities, imperfections, scale, and oxide. The compositions are effective in maintaining their etching capacity and in removing smut produced by the etching of a surface as well as in general cleaning. | 12-19-2013 |
20120298626 | Methods and Compositons for Acid Treatment of a Metal Surface - The invention relates to compositions and methods that are useful in etching a metal surface. In particular, the invention relates to novel acid compositions and methods of using such compositions in etching a metal surface, preferably an aluminum surface prior to anodizing to dissolve impurities, imperfections, scale, and oxide. The compositions are effective in maintaining their etching capacity and in removing smut produced by the etching of a surface as well as in general cleaning. | 11-29-2012 |
20120292559 | Methods and Compositions for Acid Treatment of a Metal Surface - The invention relates to compositions and methods that are useful in etching a metal surface. In particular, the invention relates to novel acid compositions and methods of using such compositions in etching a metal surface, preferably an aluminum surface prior to anodizing to dissolve impurities, imperfections, scale, and oxide. The compositions are effective in maintaining their etching capacity and in removing smut produced by the etching of a surface as well as in general cleaning. | 11-22-2012 |
20110094638 | Aqueous Quenching Media and Use Thereof in Quenching Metal Substrates - Aqueous media for quenching metal substrates are provided and contain (i) a polyvinylpyrrolidone/polyvinylcaprolactam copolymer and (ii) one or more of a second polymer, which is selected from (a) a substituted oxazoline polymer; (b) a poly(oxyethylene-oxyalkylene) glycol; or (c) a polyvinylpyrrolidone polymer. The quenching bath provides reduced cooling rates through the martensite temperature ranges. Also provided are processes for quenching metal substrates using these quenching media. | 04-28-2011 |
20090095384 | AQUEOUS QUENCHING MEDIA AND USE THEREOF IN QUENCHING METAL SUBSTRATES - Aqueous media for quenching metal substrates are provided and contain (i) a polyvinylpyrrolidone/polyvinylcaprolactam copolymer and (ii) one or more of a second polymer, which is selected from (a) a substituted oxazoline polymer; (b) a poly(oxyethylene-oxyalkylene) glycol; or (c) a polyvinylpyrrolidone polymer. The quenching bath provides reduced cooling rates through the martensite temperature ranges. Also provided are processes for quenching metal substrates using these quenching media. | 04-16-2009 |
20090047533 | COMPOSITION AND METHOD FOR TREATING FIBROUS MATERIALS - Compositions useful in preventing fungal and bacterial growth in fibrous substrates, e.g., paper, are provided. These compositions also advantageously do not corrode metal substrates that are attached and/or adjacent to the fibrous substrate. The compositions contain didecyl dimethyl ammonium bicarbonate and didecyl dimethyl ammonium carbonate (DDABC), a water-soluble cationic salt of ethylene diamine tetraacetic acid, optionally water, and optionally an agent which complexes said water-soluble cationic salt of ethylene diamine tetraacetic acid. Also provided are products containing these compositions and methods of using the same. | 02-19-2009 |
20080197112 | CHEMICAL ASSISTED LAPPING AND POLISHING OF METALS - Compositions for lapping gears and methods for preparing the same are described. These compositions contain a salt of polyaspartic acid and may contain additional components that are useful for lapping gears. Also provided are processes for using the compositions described herein. | 08-21-2008 |