[특허]Polyurethane prepolymer compositions, foams made therefrom and methods of making each thereof

[미국특허] Polyurethane prepolymer compositions, foams made therefrom and methods of making each thereof 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	C08G-018/10
출원번호	US-0120174 (1998-07-21)
발명자 / 주소	Rizk Sidky D. Spradling Jerry Lynn Pearson Brad A.
출원인 / 주소	The Dow Chemical Company
대리인 / 주소	Nilsen
인용정보	피인용 횟수 : 27 인용 특허 : 11

초록 ▼

A polyisocyanate prepolymer composition is comprised of the reaction product of (a) a polyisocyanate having an average functionality of at least 2 and containing at least about 20 percent by weight of a diisocyanate monomer, (b) a monohydric alcohol and (c) a polyol having an average hydroxyl functionality of at least about 1.8 to at most about 3.2, wherein the prepolymer composition has (i) an amount of isocyanate groups by weight sufficient to react with water in the absence of a supplemental blowing agent to make a foam, (ii) at most about 10.0 percent by weight of the diisocyanate monomer and (iii) an amount of the polyisocyanate that is capped by the monohydric alcohol sufficient to prevent gelling of the prepolymer composition. The prepolymer composition may be formed by contacting (i) an organic polyisocyanate having an average isocyanate functionality of at least about 2.0 and an amount of diisocyanate monomer of at least 20 percent by weight, (ii) a monohydric alcohol and (iii) a polyol having an average hydroxyl functionality of at least about 1.8 to at most about 3.2 for a time and temperature sufficient to form the prepolymer composition, wherein the organic polyisocyanate, monohydric alcohol and polyol are contacted at a ratio of NCO to hydroxyl of at least about 2, to at most about 5, and the monohydric alcohol and polyol are provided in a ratio of monohydric alcohol to polyol of at least about 0.1, to at most about 2, based upon the hydroxyl equivalence of the monohydric alcohol and polyol. The prepolymer composition may be reacted with water to form a polyurethane foam.

대표청구항 ▼

[ What is claimed is:] [1.] A method of forming a polyurethane foam comprising contactinga polyisocyanate prepolymer composition comprising the reaction product of (a) an organic polyisocyanate having an average isocyanate functionality of at least 2 and containing at least about 20 percent by weight of a diisocyanate monomer, (b) a monohydric alcohol and (c) a polyol having an average hydroxyl functionality of at least about 1.8 to at most about 3.2, wherein the prepolymer composition has (i) an amount of isocyanate groups by weight sufficient to react with water in the absence of a supplemental blowing agent to make a foam, (ii) at most about 10.0 percent by weight of the diisocyanate monomer and (iii) an amount of the polyisocyanate that is capped by the monohydric alcohol sufficient to prevent gelling of the prepolymer composition witha foaming reactant comprised of water for a time and temperature sufficient to form the polyurethane foam.

이 특허에 인용된 특허 (11) 인용/피인용 타임라인 분석

Hoffmann Gerhard (Otterstadt DEX) Faul Dieter (Bad Durkheim DEX) Huemke Klaus (Friedelsheim MI DEX) Gilbert John A. (Beverly Hills MI), Heat curable cathodic electrocoating composition.
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Dieterich Dieter (Leverkusen DT) Markusch Peter (Leverkusen DT), Inorganic-organic compositions.
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Schmalstieg Lutz (Koln DEX) Rettig Rainer (Kurten DEX) Walter Ulrich (Hilden DEX) Hortelano Edwin R. (Houston TX), Isocyanate prepolymers, a process for their preparation and their use.
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Markusch Peter (McMurray PA) Hudson ; deceased George A. (late of Pittsburgh PA by Richard L. White ; administrator), Liquid polyisocyanate adduct mixtures possessing good compatibility with apolar solvents.
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Markusch Peter (McMurray PA) Hudson ; deceased George A. (late of Venetia PA) White ; administrator by Richard L. (Leverkusen DEX), Polyisocyanate adducts with apolar solvent compatibility and good storage stability.
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Kahl Lothar (Bergisch Gladbach DEX) Pedain Josef (Cologne DEX) Wellner Wolfgang (Bergisch Gladbach DEX), Process for the preparation of polyisocyanates containing urethane groups and the products obtained.
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Markusch Peter H. (McMurray PA), Process for the production of fiberglass mats.
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Dunlap Kenneth L. (New Martinsville WV) Markusch Peter H. (McMurray PA) Ferrell Clarence D. (Moundsville WV), Reduction of free monomer in isocyanate adducts.
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Dueber Ernst O. (Tervuren BEX) Eling Berend (Wezembeek-Oppem BEX), Rigid foams.
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Robin Jean (Lyons FRX) Blind Andre (Caluire FRX), Substantially pure isocyanurate/polyisocyanates.
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Robin Jean (Lyons FRX) Blind Andre (Caluire FRX), Substantially pure isocyanurate/polyisocyanates.
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이 특허를 인용한 특허 (27) 인용/피인용 타임라인 분석

Bleys, Gerhard Jozef; Geukens, Danny Anna Edward; Verbeke, Hans Godelieve Guido, Elastomeric polyurethane material.
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Eagle,Glenn G., Heat activated epoxy adhesive and use in a structural foam insert.
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Qin, Shuhui; Li, Yingjie, Liquid moisture curable polyurethane adhesives for lamination and assembly.
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Simpson,Scott S.; Sato,Tadashi, Low density polyurethane foam, method of producing, and articles comprising the same.
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Whinnery, Jr., Leroy L.; Goods, Steven H.; Skala, Dawn M.; Henderson, Craig C.; Keifer, Patrick N., Method for providing a low density high strength polyurethane foam.
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Wintermantel, Matthias; Meckel, Walter; Ludewig, Michael, Moisture-curing composition and hot-melt adhesive.
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Lekovic, Huzeir; El-Khatib, Ali, One-component polyurethane foam compositions and methods for their use.
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Savino, Thomas G.; Lebedinski, Nikolay; Kumar, Rajesh; Peeler, Calvin T., Prepolymer systems having reduced monomeric isocyanate contents.
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Zoran S. Petrovic ; Ivan J. Javni, Process for the synthesis of epoxidized natural oil-based isocyanate prepolymers for application in polyurethanes.
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Parker, Anthony A.; Marcinko, Joseph J., Protein adhesives containing an anhydride, carboxylic acid, and/or carboxylate salt compound and their use.
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Parker, Anthony A.; Marcinko, Joseph J., Protein-containing adhesives, and manufacture and use thereof.
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Parker, Anthony A.; Marcinko, Joseph J., Protein-containing adhesives, and manufacture and use thereof.
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Parker, Anthony A.; Marcinko, Joseph J., Protein-containing adhesives, and manufacture and use thereof.
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Parker, Anthony A.; Marcinko, Joseph J., Protein-containing adhesives, and manufacture and use thereof.
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Parker, Anthony A.; Marcinko, Joseph J., Protein-containing emulsions and adhesives, and manufacture and use thereof.
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Parker, Anthony A.; Marcinko, Joseph J., Protein-containing emulsions and adhesives, and manufacture and use thereof.
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Parker, Anthony A.; Marcinko, Joseph J., Protein-containing foams, manufacture and use thereof.
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Parker, Anthony A.; Marcinko, Joseph J., Protein-containing foams, manufacture and use thereof.
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Jenny, Jack W.; Radovich, David A., Reduction of MDI emissions in cavity filling NVH polyurethane foams.
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Kropfeld, Scott, Reinforced structural body.
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Capps, Charles L., Saccharide-based resin for the preparation of composite products.
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Capps, Charles L., Saccharide-based resin for the preparation of foam.
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Boven,Michelle L.; Li,Zhicheng; Eagle,Glenn G.; Brodil,Jason C., Structural reinforcement article and process for preparation thereof.
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Juras,Paul E.; Said,Kousay; Lawrey,Gary; McLeod,David G., Structural reinforcement parts for automotive assembly.
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Berard, Nicholas John; Mazorow, Wayne; Kerman, Michael Lewis, Two-part foamable adhesive with renewable content for fleece back membranes.
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McLeod, David G.; Swartzmiller, Steve B.; Billotto, Frank V.; Allen, Mark P.; Brewster, Christopher A.; Said, Kousay M., Vehicular structural members and method of making the members.
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McLeod,David G.; Billotto,Frank V.; Swartzmiller,Steve B.; Allen,Mark P.; Brewster,Christopher A.; Said,Kousay M., Vehicular structural members and method of making the members.
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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] Polyurethane prepolymer compositions, foams made therefrom and methods of making each thereof 원문보기