[특허]Aqueous coating materials and their use for the production of filler coats in automotive finishing

[미국특허] Aqueous coating materials and their use for the production of filler coats in automotive finishing 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	C08G-018/80
출원번호	US-0640748 (1996-05-06)
우선권정보	DE-4337961 (1993-11-06)
국제출원번호	PCT/EP94/03446 (1994-10-20)
§371/§102 date	19960506 (19960506)
국제공개번호	WO-9512626 (1995-05-11)
발명자 / 주소	Wegner Egon,DEX Gross Lutz-Werner,DEX Stein Ralf,DEX
출원인 / 주소	BASF Coatings AG, DEX
인용정보	피인용 횟수 : 20 인용 특허 : 0

초록 ▼

The invention relates to coating materials containing a water-dilutable polyurethane resin as binder. The resin can be prepared by reacting some of the free isocyanate groups present in a prepolymer (I) which contains acidic groups and isocyanate groups with a blocking agent so as to form a prepolymer (II) which contains blocked isocyanate groups, the blocking agent being employed in a quantity such that the prepolymer (II) still contains on average at least one free isocyanate group per molecule, reacting the prepolymer (II) with a compound which contains at least one primary or secondary amino group and at least one hydroxyl group in the molecule, to give a polyurethane resin, and finally converting the polyurethane resin prepared in this way into a water-dilutable polyurethane resin by at least partial neutralization of the acidic groups.

대표청구항 ▼

[ We claim:] [1.] Aqueous coating composition containing at least one water-dilutable polyurethane resin as binder, wherein the water-dilutable polyurethane resin is prepared by reacting, in a first step,(a) a polyisocyanate or a mixture of polyisocyanates and(b) a compound whose molecule contains at least one group which is reactive toward isocyanate groups and at least one acidic group which is capable of forming anions, or a mixture of such compounds, and(c) optionally, a polyester- and/or polyether-polyol having a number-average molecular weight of from 400 to 5000, or a mixture of such polyester- and/or polyether-polyols, and(d) optionally, a polyol having a number-average molecular weight of from 60 to 399, or a mixture of such polyols, to give an isocyanato-containing prepolymer (I), components (a), (b), (c) and (d) being reacted with one another in a proportion such that the isocyanate groups and the groups which are reactive toward isocyanate groups are present in a ratio of equivalents of from 1.04:1.00 to 10.00:1.00 and the resultant polyurethane has an acid number between 18 and 70; in a second stage reacting some of the free isocyanate groups present in the prepolymer (I) with(e) a blocking agent or a mixture of blocking agents so as to form a prepolymer (II) containing blocked isocyanate groups, component (e) being employed in a quantity such that the prepolymer (II) still contains on average at least one free isocyanate group per molecule; and the prepolymer (II) is reacted with(g) a compound containing at least one primary or secondary amino group and at least one hydroxyl group in the molecule, or a mixture of such compounds, to give a polyurethane resin, component (g) being employed in a quantity such that the free isocyanate groups of the prepolymer (II), the amino groups of component (g) and the hydroxyl groups of component (g) are in a ratio of equivalents of from 1.00:0.15 to 5.00:0.15 to 5.00; and finally, at least partially neutralizing acidic groups capable of forming anions on the polyurethane resin, to form a water-dilutable polyurethane resin.

이 특허를 인용한 특허 (20) 인용/피인용 타임라인 분석

Nickolaus,Ralf; Rink,Heinz Peter; Clauss,Reinhold; Wessling,Elisabeth; Löcken,Wilma; Bendix,Maximilian; Mikolajetz,Dunja, Aqueous coating substance that is substantially or completely free of volatile organic substances, method for producing the same and the use thereof.
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Gross, Lutz-Werner; Moorkamp, Ludwig; Grumpe, Heinz-Ulrich; Poth, Ulrich, Aqueous coating substance, method for its production and its use.
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Nickolaus,Ralf; Rink,Heinz Peter; Clauss,Reinhold; Wessling,Elisabeth; L？cken,Wilma; Freitag,Nicole; Mikolajetz,Dunja, Aqueous primary dispersion, substantially or completely devoid of volatile organic substances, method for the production thereof and use of the same.
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Bendix,Maximilian; Rink,Heinz Peter; Wessling,Elisabeth; Clauss,Reinhold; Nicholaus,Ralf, Aqueous primary dispersions and coating agents, methods for producing them and their use.
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Bendix, Maximilian; Clauss, Reinhold; Nickolaus, Ralf; Bremser, Wolfgang, Aqueous primary dispersions and coating matters, a method for producing same and the use thereof.
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Bendix, Maximilian; Rink, Heinz-Peter, Aqueous primary dispersions, method for preparation and use thereof.
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Wegner,Egon; Jansing,Frank, Aqueous, effect-producing coating material, method for the production thereof and use of the same.
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Bremser, Wolfgang, Base coat and its use for producing color and/or effect-producing base coatings and multi-layer coatings.
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Witte,Michael; Book,J？rgen; Matijevic,Mirjana; Kaup,Nadja, Bonding material solution and the use thereof in an automotive spot repair kit.
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Bremser, Wolfgang, Coating material and its use for producing filler coats and stone impact protection primers.
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Bremser, Wolfgang, Coloring and/or effect-creating multilayer enamel coating, method for the production thereof and its use.
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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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Musch, Rüdiger; Mazanek, Jan; Perrey, Hermann; Panskus, Knut, Dispersions.
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Schwarte, Stephan; Wegner, Egon; Angermüller, Harald, Method for multilayer coatings with self-crosslinking graft polyurethane copolymers, self-crosslinking polyurethanes and graft copolymers thereof.
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Woltering,Joachim, Method for producing color and/or effect-producing multilayer paints on car bodies.
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Yamanaka Eiji,JPX ; Nishi Tadahiko,JPX ; Tanabe Hisaki,JPX, Method of forming a chipping-resistant composite paint film.
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Bremser, Wolfgang; Steiner, Peter; Podlaski-Pyzik, Beate; Strickmann, Frank; Stockbrink, Ute, Molding materials and method for producing molded parts.
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Blum, Harald; Müller, Heino, Single-component polyurethane system comprising aqueous or water-soluble polyurethanes.
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Bremser, Wolfgang, Varnish and its use for producing varnish coatings and color-and/or effect-producing multi-layer coatings.
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[미국특허] Aqueous coating materials and their use for the production of filler coats in automotive finishing 원문보기

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[미국특허] Aqueous coating materials and their use for the production of filler coats in automotive finishing 원문보기

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