3m Innovative Properties Company

Thomas E S Muehle

Cheryl L S Elsbernd

Adam J Meuler

Zachary J Malmberg

Jian Li

Guglielmo Memo Izzi

Thomas J Blong

Yu Yang

Suresh Iyer

Dong-Wei Zhu

Jeffrey A Peterson

Timothy D Fletcher

Jiyoung Park

Christopher W A Krohe

Kyle P Starkey

Articles subject to ice formation during normal use are described. The article comprises a repellent surface such that the receding contact angle of the surface with water ranges from 90 degrees to 135 degrees. The repellent surface comprises a fluorochemical material, typically in combination with a non-fluorinated organic polymeric binder. The fluorochemical material is preferably a compound having the formula: (R&#x2212;L&#x2212;P)A Ris a fluorinated group; L is independently an organic divalent linking group; P is a catenary, divalent heteroatom-containing carbonyl moiety, such as &#x2014;C(O)O&#x2014;; A is hydrocarbon moiety; and n typically ranges from 1 to 3; also described are methods of making an article comprising providing an article subject to ice formation during normal use and providing a liquid repellent surface, as described herein, on at least a portion of the article.

Articles subject to ice formation comprising a repellent surface

Articles subject to ice formation during normal use are described. The article comprises a repellent surface such that the receding contact angle of the surface with water ranges from 90 degrees to 135 degrees. The repellent surface comprises a fluorochemical material, typically in combination with a non-fluorinated organic polymeric binder. The fluorochemical material is prefer-ably a compound having the formula: (R-L-P)A Ris a fluorinated group; L is independently an organic divalent linking group; P is a catenary, divalent heteroatom-containing carbonyl moiety, such as &#x2014;C(O)O&#x2014;; A is hydrocarbon moiety; and n typically ranges from 1 to 3. Also described are methods of making an article comprising providing an article subject to ice formation during normal use and providing a liquid repellent surface, as described herein, on at least a portion of the article.

Polyester polymers are described comprising polymerized units comprising a hydroxy functional aromatic group wherein the hydroxy group has been functionalized with an adhesion promoting group. In some embodiments, the polyester polymer comprises polymerized units have the general structure (A) wherein Land Lare independently divalent linking groups comprising an ester group; and Ris an adhesion promoting group bonded to the oxygen atom by means of an ionic or covalent bond. In other embodiments, film articles, laminates are described and methods of making functionalized polyester polymers are described. 

Functionalized polyester polymers and film articles

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Woodbury, MN, United States of America

Thomas E S Muehle