Water-resistant fabrics and methods of preparation thereof
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B05D-003/02
C08K-005/3415
C08K-005/05
C08K-005/07
C08K-005/16
출원번호
US-0059566
(2008-03-31)
등록번호
US-8202579
(2012-06-19)
발명자
/ 주소
O'Keefe, Michael S.
Silvia, Justin J.
Pettey, David A.
출원인 / 주소
Cooley Group Holdings, Inc.
대리인 / 주소
Lando & Anastasi, LLP
인용정보
피인용 횟수 :
0인용 특허 :
14
초록
A composition having a polyurethane, a hydrophilic polyisocyanate, a wetting agent, and a fluoropolymeric additive can be disposed on a substrate such as a fabric to provide water-repellant characteristics. The urethane-coated substrate can then be fabricated into a water storage container.
대표청구항▼
1. A urethane coating composition, comprising: a water-dispersible urethane polymer;a hydrophilic polyisocyanate;a wetting agent comprising at least one water-miscible organic compound; anda water-repellent fluoropolymeric additive comprising a fluoroalkyl acrylate polymer. 2. The coating compositio
1. A urethane coating composition, comprising: a water-dispersible urethane polymer;a hydrophilic polyisocyanate;a wetting agent comprising at least one water-miscible organic compound; anda water-repellent fluoropolymeric additive comprising a fluoroalkyl acrylate polymer. 2. The coating composition of claim 1, wherein the wetting agent consists essentially of N-methyl-2-pyrrolidone. 3. The coating composition of claim 1, wherein the wetting agent comprises a polar solvent selected from the group consisting of halogenated organics compounds, alcohols, ketones, and formamides. 4. The coating composition of claim 1, wherein the hydrophilic polyisocyanate comprises an aliphatic polyisocyanate adduct of hexamethylene diisocyanate. 5. The coating composition of claim 1, further comprising a cross-linking agent. 6. The coating composition of claim 5, wherein the cross-linking agent comprises a diimide. 7. A method of preparing a urethane-based coating composition, comprising: combining an aqueous polyurethane dispersion, water, and a polar aprotic compound to form a premix;storing at least a portion of the premix;adding a polyisocyanate to the premix to form a urethane-based mixture; andmixing a fluoroacrylic polymeric compound into the urethane-based mixture to form the urethane-based coating composition. 8. The method of claim 7, wherein combining the aqueous polyurethane, water, and the polar aprotic compound comprises combining a polyester polyurethane, water, and N-methyl-2-pyrrolidone. 9. The method of claim 7, wherein the combining act further comprises adding a cross-linking agent. 10. The method of claim 7, wherein adding the polyisocyanate to the premix comprises: introducing the premix into a mixer;agitating the premix; andadding an aliphatic polyisocyanate adduct of hexamethylene diisocyanate while agitating the premix. 11. A method of fabricating a laminate, comprising: applying a urethane coating composition comprising a water-dispersible urethane polymer, a hydrophilic polyisocyanate, a wetting agent comprising at least one water-miscible organic compound, and a water-repellent fluoropolymeric additive on a fabric;curing the urethane coating composition on the fabric to provide a coated fabric; anddisposing a thermoplastic polymeric material on the coated fabric to create the laminate. 12. The method of claim 11, wherein applying the coating composition comprises dipping the fabric in a bath containing the urethane coating composition to form a dip-coated fabric. 13. The method of claim 12, wherein curing the urethane coating composition comprises: drying the dip-coated fabric at a temperature in a range of 200° C. to 400° C.; andheating the dried, coated fabric at a temperature of at least 400° C. 14. The method of claim 13, wherein applying the coating composition comprises applying a saturant consisting essentially of an aqueous anionic polyurethane, water, N-methyl-2-pyrrolidone, an aliphatic polyisocyanate adduct of hexamethylene diisocyanate, and a water-repellent fluoroacrylic polymeric additive. 15. The method of claim 13, wherein disposing the thermoplastic polymeric material on the coated fabric comprises co-extruding a thermoplastic polyurethane resin on the coated fabric. 16. The method of claim 11, wherein applying a urethane coating composition comprises preparing a saturant comprising a water-dispersible urethane polymer, a hydrophilic polyisocyanate, a wetting agent comprising at least one water-miscible organic compound, a cross-linking agent, and a water-repellent fluoropolymeric additive. 17. The method of claim 11, wherein applying a urethane coating composition on a fabric comprises preparing a saturant consisting essentially of a water-dispersible urethane polymer, a hydrophilic polyisocyanate, a wetting agent comprising at least one water-miscible organic compound, a diimide, and a fluoroacrylic compound. 18. A method of facilitating fabrication of a water storage vessel comprising: applying a saturant consisting essentially of an aqueous anionic polyurethane, water, N-methyl-2-pyrrolidone, an aliphatic polyisocyanate adduct of hexamethylene diisocyanate, a diimide, and a water-repellent fluoroacrylic polymeric additive on a fabric;curing the saturant on the fabric to provide a coated fabric; anddisposing a thermoplastic polymeric material on the coated fabric to create a laminate. 19. The method of claim 18, further comprising delivering the laminate to a water storage vessel fabrication facility.
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이 특허에 인용된 특허 (14)
McDonnell William J. (Clinton NY) Sarnacki ; Jr. Alexander C. (Utica NY) Collins Dean E. (Lowell MI), Collapsible water tank.
Shaw Mark D. (Ponte Vedra FL) Heyman J. Tad (Jacksonville FL) Bierce Laurence M. (Jacksonville FL) True ; III Dorian T. (Augusta GA) Jones ; Jr. Marion L. (North Augusta SC), Collapsible, self-expanding liquid container.
Henning Wolfgang (Krten DEX) Meckel Walter (Neuss DEX) Mnzmay Thomas (Dormagen DEX) Kortmann ; deceased Wilfried (late of Nachrodt-Wiblingverde DEX by Margot Kortmann ; Bettina Kortmann ; Axel Kortma, Hydrophobizing and oleophobizing compositions.
Dams Rudolf J.,BEX ; DeWitte Johan E.,BEX ; Maes Christoffel C.,BEX, Substrate having high initial water repellency and a laundry durable water repellency.
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