[특허]Water-based, solvent-free or low voc, two-component polyurethane coatings

[미국특허] Water-based, solvent-free or low voc, two-component polyurethane coatings 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	C08G-018/32
출원번호	US-0303356 (1994-09-09)
발명자 / 주소	Hart Richard E. (Irvine CA)
출원인 / 주소	R. E. Hart Labs, Inc. (CA 02)
인용정보	피인용 횟수 : 23 인용 특허 : 0

초록 ▼

A substantially solvent free aqueous two-component coating composition dispersion which, when applied to a substrate, cures to a film having properties of adhesion and bonding which are equal to or superior to films obtained from conventional solvent-based two-component polyurethane or epoxy systems. The first component is a combined aqueous polyol phase and an amine phase. The polyol phase comprises a member consisting of an acid containing polyol or a blend of polyols containing an acid containing polyol such that the average hydroxyl functionality of the polyol phase is at least 1.5 and has an acid number of between about 15 and 200. The amine phase is an amine or blend of amines containing active hydrogens reactive with NCO groups such that the average active hydrogen functionality is at least 1.5. The amine phase is present in a quantity sufficient to substantially neutralize the acid containing polyols. The second component is a member selected from the group consisting of an aliphatic polyisocyanate, a cycloaliphatic polyisocyanate and an aromatic polyisocyanate and adducts and mixtures thereof. The ratio between the isocyanate equivalents and the sum of the active hydrogen equivalents of the polyols and amines is at least 0.5:1 and is preferably at least 1.1:1. The preferential reaction of the isocyanate groups with the active hydrogen moieties from the polyols and amines results in both linear and crosslinking polymerization.

대표청구항 ▼

A substantially solvent-free aqueous two-component coating composition dispersion comprising: a) an aqueous phase comprising: 1) a polyol phase selected from the group consisting of an acid containing polyol and a blend of polyols containing an acid containing polyol such that the average hydroxyl functionality of such polyol phase is at least 1.5, said polyol phase having an acid number of between about 15 and 200; and 2) an amine or blend of amines containing active hydrogens reactive with NCO groups such that the average active hydrogen functionality is at least 1.5, the amine or amine blend comprising at least one primary amine, or at least one secondary amine, or both, and being present in a minimum quantity sufficient to substantially neutralize the acid containing polyols; and b) a member selected from the group consisting of an aliphatic polyisocyanate, a cycloaliphatic polyisocyanate and an aromatic polyisocyanate and mixtures thereof wherein the ratio between the isocyanate equivalents and the sum of the active hydrogen equivalents of the polyols and amines is at least 0.5:1.

이 특허를 인용한 특허 (23) 인용/피인용 타임라인 분석

Boudreaux Chase J. ; Fischer Stephen A. ; Arora Kartar S. ; Johnson Grannis S., Aqueous dispersions of polymers.
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Denise Luise Lindenmuth ; Charles Raymond Hegedus ; Frank Ralph Pepe, Aqueous polymer emulsion-polyester polyol blend for reducing or eliminating flooding and floating in water-based two component polyurethane coatings.
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Duan Youlu (Minneapolis MN) Stammler Sonja (Marine On the St. Croix MN), Aqueous polyurethane dispersion adhesive compositions with improved heat resistance.
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Edgington Garry J., Coating composition.
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Garry J. Edgington, Coating composition.
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Kendi, Margaret A.; Owens, Steven; Nakao, Makoto, Coating compositions capable of producing surfaces with dry-erase properties.
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Kendi, Margaret A.; Owens, Steven; Nakao, Makoto, Coating compositions capable of producing surfaces with dry-erase properties.
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Hardy Richard D. ; Jarufe Juan E., Coatings with increased adhesion.
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Lamers, Paul H.; Martz, Jonathan T.; Meyers, Lawrence D.; Novak, Carolyn A.; Olson, Kurt G.; Rowley, James P.; Verardi, Christopher A., Curable polyurethanes, coatings prepared therefrom, and method of making the same.
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Lamers, Paul H.; Martz, Jonathan T.; Meyers, Lawrence D.; Novak, Carolyn A.; Olson, Kurt G.; Rowley, James P.; Verardi, Christopher A., Curable polyurethanes, coatings prepared therefrom, and method of making the same.
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Choudhery Riaz Ahmad,GBX, Dispersion process.
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Choudhery, Riaz Ahmad, Dispersion process.
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Slone,Caroline S.; Tysak,Theodore, Durable two-part polyurethane floor coating.
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Ho, Charlie Chia-Tie; Fullbright, Jr., Clarence, Flexible polyurethane material.
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Yuan,San C.; Chinn,Mitchell S., Non-yellowing polyester coating composition.
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Duffy, Shawn P.; Donaldson, Susan F.; Jennings, Robert E., Pigment dispersions, related coating compositions and coated substrates.
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Housel Tyler ; Katuran Ira S. ; Burgo Rocco, Polymeric acid functional polyols, polyurethanes and methods for making same.
상세보기
Housel Tyler ; Katuran Ira S. ; Burgo Rocco ; Bleyman Oleg I., Polymeric acid functional polyols, polyurethanes and methods for making same.
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Duan Youlu (Maplewood MN) Stammler Sonja (Marine on the St. Croix MN), Reduced solvent process for preparation of aqueous polyurethane dispersions with improved heat-and water-resistance.
상세보기
Wu, Xiaodong; Rosen, Richard P., Two component waterborne polyurethane coatings for anti-graffiti application.
상세보기
Tien Chao-fong ; Chen Ning ; DiStefano Frank Vito ; Santosusso Thomas Michael, Two component waterborne urethane/vinyl polymer composite for coating applications.
상세보기
Hart Richard E. (Irvine CA), Water-based, solvent-free or low VOC, two-component polyurethane coatings.
상세보기
Jones Frank N. ; Subrayan Ramachandran P., Water-borne polymeric vehicle for coating compositions containing an amine or ammonium salt of phenolic ester alcohols.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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[미국특허] Water-based, solvent-free or low voc, two-component polyurethane coatings 원문보기