{"id":4594,"date":"2025-02-04T09:00:00","date_gmt":"2025-02-04T15:00:00","guid":{"rendered":"https:\/\/patents.harnessip.com\/?p=4594"},"modified":"2025-02-03T20:36:56","modified_gmt":"2025-02-04T02:36:56","slug":"february-4-2025","status":"publish","type":"post","link":"https:\/\/patents.harnessip.com\/?p=4594","title":{"rendered":"February 4, 2025"},"content":{"rendered":"\n<p>On February 4, 1941, Roy J. Plunkett received U.S. Patent No. 2,230,654, on Tetrafluoroethylene, assigned to his employer Kinetic Chemicals, Inc.:<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/patents.harnessip.com\/wp-content\/uploads\/2025\/02\/image.png\"><img loading=\"lazy\" decoding=\"async\" width=\"601\" height=\"902\" src=\"https:\/\/patents.harnessip.com\/wp-content\/uploads\/2025\/02\/image.png\" alt=\"\" class=\"wp-image-4595\" srcset=\"https:\/\/patents.harnessip.com\/wp-content\/uploads\/2025\/02\/image.png 601w, https:\/\/patents.harnessip.com\/wp-content\/uploads\/2025\/02\/image-200x300.png 200w\" sizes=\"auto, (max-width: 601px) 100vw, 601px\" \/><\/a><\/figure>\n\n\n\n<p>Plunkett had earned a PhD in chemistry, but his discovery of Teflon was largely by accident.  Plunkett was working in a laboratory in Edison, New Jersey, in 1938 trying to find alternative chlorofluorocarbon refrigerants.  He and his assistant made about 100 pounds of Tetrafluoroethylene (TFE), a common precursor of refrigerants.  They froze the TFE in a gas cylinder, but the next day no gas came out.  They opened the cylinder and found that the TFE had polymerized into a white powdery substance.<\/p>\n\n\n\n<p>Plunket studied the powdery substance further and found its properties to be waxy, very slippery, chemically stable and had a high melting point.  DuPont went to work on the new polymer, and by 1941 it had found numerous applications, and given a new name -Teflon.<\/p>\n\n\n\n<p>Teflon became so well known for its slipperiness, that it found use in in common parlance, President Ronald Reagan being dubbed the \u201cTeflon President,\u201d and John Gotti, being called the &#8220;Teflon Don.\u201d<\/p>\n","protected":false},"excerpt":{"rendered":"<p>On February 4, 1941, Roy J. Plunkett received U.S. Patent No. 2,230,654, on Tetrafluoroethylene, assigned to his employer Kinetic Chemicals, Inc.: Plunkett had earned a PhD in chemistry, but his discovery of Teflon was largely by accident. Plunkett was working &hellip; <a href=\"https:\/\/patents.harnessip.com\/?p=4594\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[18,1],"tags":[],"class_list":["post-4594","post","type-post","status-publish","format-standard","hentry","category-patent-of-the-day","category-uncategorized"],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/patents.harnessip.com\/index.php?rest_route=\/wp\/v2\/posts\/4594","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/patents.harnessip.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/patents.harnessip.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/patents.harnessip.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/patents.harnessip.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4594"}],"version-history":[{"count":2,"href":"https:\/\/patents.harnessip.com\/index.php?rest_route=\/wp\/v2\/posts\/4594\/revisions"}],"predecessor-version":[{"id":4597,"href":"https:\/\/patents.harnessip.com\/index.php?rest_route=\/wp\/v2\/posts\/4594\/revisions\/4597"}],"wp:attachment":[{"href":"https:\/\/patents.harnessip.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4594"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/patents.harnessip.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4594"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/patents.harnessip.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4594"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}