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公开(公告)号：EP0480120A3
公开(公告)日：1993-01-13
申请号：EP91105085.4
申请日：1991-03-28
IPC分类号： C09D125/14 , C09D133/06 , C09D201/08 , C09D5/03
CPC分类号： C09D133/14 , C08L33/06 , C08L67/02 , C08L2205/02 , Y10S525/934 , C08L2666/02
摘要： There is disclosed a resin composition for powder coatings, which comprises a blend of two acrylic resins being obtained by polymerizing a proscribed amount of monomer component (a-1) represented by formula (I) and a prescribed amount of another monomer component (a-2), respectively, and having different polymerization degrees represented by viscosities at 140°C and a polybasic acid compound in 1.5 to 0.5 equivalent ratio of the glycidyl groups in said acrylic resins to the acid groups in the polybasic acid compound.
wherein R 1 and R 2 each represent a hydrogen atom or a lower alkyl group. Disclosure described provides a resin composition for powder coatings that can form a coating film having a mat smooth appearance and excellent in flexibility as shown Du pont impact resistance and the Ericksen test as well as excellent in nail scratch resistance.-
公开(公告)号：EP0480120A2
公开(公告)日：1992-04-15
申请号：EP91105085.4
申请日：1991-03-28
IPC分类号： C09D125/14 , C09D133/06 , C09D201/08 , C09D5/03
CPC分类号： C09D133/14 , C08L33/06 , C08L67/02 , C08L2205/02 , Y10S525/934 , C08L2666/02
摘要： There is disclosed a resin composition for powder coatings, which comprises a blend of two acrylic resins being obtained by polymerizing a proscribed amount of monomer component (a-1) represented by formula (I) and a prescribed amount of another monomer component (a-2), respectively, and having different polymerization degrees represented by viscosities at 140°C and a polybasic acid compound in 1.5 to 0.5 equivalent ratio of the glycidyl groups in said acrylic resins to the acid groups in the polybasic acid compound.
wherein R 1 and R 2 each represent a hydrogen atom or a lower alkyl group. Disclosure described provides a resin composition for powder coatings that can form a coating film having a mat smooth appearance and excellent in flexibility as shown Du pont impact resistance and the Ericksen test as well as excellent in nail scratch resistance.摘要翻译： 公开了一种用于粉末涂料的树脂组合物，其包含两种丙烯酸树脂的共混物，其通过将受限量的由式（I）表示的单体组分（a-1）和规定量的另一单体组分（a- 2），并且具有以140℃的粘度表示的不同聚合度和多元酸化合物，所述丙烯酸树脂中的缩水甘油基与多元酸化合物中的酸基的当量比为1.5至0.5当量比。
其中R1和R2各自表示氢原子或低级烷基。 所公开的公开内容提供了一种用于粉末涂料的树脂组合物，其可以形成具有平滑外观和柔韧性优异的涂膜，如杜邦耐冲击性和埃克森克氏试验以及耐刮擦性优异。 -
公开(公告)号：EP0522456A3
公开(公告)日：1993-09-08
申请号：EP92111268.6
申请日：1992-07-03
发明人： Miyazaki, Eiichiro , Kano, Taisaku
IPC分类号： C09D133/02 , C09D133/14 , C08K5/00 , C08K3/00
CPC分类号： C09D133/068 , C08L33/062 , C08L61/32 , C08L2666/04 , C08L2666/28
摘要： A resin composition for thermosetting coating, which comprises
(a₁) an acrylic copolymer having a particular acid value and/or (a₂) an acrylic copolymer having a particular acid value and a particular hydroxyl value, (b) an acrylic copolymer having a particular epoxy equivalent, (c) a monobasic acid having a dissociation constant (pKa) of 3 or less, and, as necessary, (d) an amino resin and (e) a quaternary phosphonium salt, and wherein the equivalent ratio of the acid group of (a₁) and/or (a₂) and the epoxy group of (b) is 1:0.5 to 0.5:1 and the amounts of (c), (d) and (e) are 0.01-5 parts by weight, 1-25 parts by weight and 0.01-3 parts by weight, respectively, per 100 parts by weight of the total of (a₁) and/or (a₂) and (b). Said resin composition, when used as a clear coating for automobiles, is superior in film appearance, acid resistance, solvent resistance, water resistance, weatherability, storage stability and low temperature curing.-
公开(公告)号：EP0522456A2
公开(公告)日：1993-01-13
申请号：EP92111268.6
申请日：1992-07-03
发明人： Miyazaki, Eiichiro , Kano, Taisaku
IPC分类号： C09D133/02 , C09D133/14 , C08K5/00 , C08K3/00
CPC分类号： C09D133/068 , C08L33/062 , C08L61/32 , C08L2666/04 , C08L2666/28
摘要： A resin composition for thermosetting coating, which comprises
(a₁) an acrylic copolymer having a particular acid value and/or (a₂) an acrylic copolymer having a particular acid value and a particular hydroxyl value,
(b) an acrylic copolymer having a particular epoxy equivalent,
(c) a monobasic acid having a dissociation constant (pKa) of 3 or less, and, as necessary,
(d) an amino resin and
(e) a quaternary phosphonium salt,
and wherein the equivalent ratio of the acid group of (a₁) and/or (a₂) and the epoxy group of (b) is 1:0.5 to 0.5:1 and the amounts of (c), (d) and (e) are 0.01-5 parts by weight, 1-25 parts by weight and 0.01-3 parts by weight, respectively, per 100 parts by weight of the total of (a₁) and/or (a₂) and (b).
Said resin composition, when used as a clear coating for automobiles, is superior in film appearance, acid resistance, solvent resistance, water resistance, weatherability, storage stability and low temperature curing.摘要翻译： 一种用于热固性涂层的树脂组合物，其包含（a1）具有特定酸值的丙烯酸共聚物和/或（a2）具有特定酸值和特定羟值的丙烯酸共聚物，（b）具有特定环氧树脂的丙烯酸共聚物 相当于（c）解离常数（pKa）为3以下的一元酸，根据需要，（d）氨基树脂和（e）季鏻盐，其中酸基的当量比 （a1）和/或（a2），（b）的环氧基为1:0.5〜0.5:1，（c），（d）和（e）的量为0.01-5重量份， 相对于（a1）和/或（a2）和（b）的总量的100重量份，分别为25重量份和0.01-3重量份。 所述树脂组合物当用作汽车的透明涂层时，其膜外观，耐酸性，耐溶剂性，耐水性，耐候性，储存稳定性和低温固化性均优异。
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公开(公告)号：EP0480120B1
公开(公告)日：1995-11-29
申请号：EP91105085.4
申请日：1991-03-28
IPC分类号： C09D125/14 , C09D133/06 , C09D201/08 , C09D5/03
CPC分类号： C09D133/14 , C08L33/06 , C08L67/02 , C08L2205/02 , Y10S525/934 , C08L2666/02
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公开(公告)号：EP0544206A3
公开(公告)日：1993-12-08
申请号：EP92119899.0
申请日：1992-11-23
IPC分类号： C09D133/06 , C08K5/09 , C09D5/03
CPC分类号： C09D133/068 , C08K5/092 , C08L33/068 , C08L2205/02 , C09D137/00 , Y10T428/31511 , C08L33/06 , C08L2666/04 , C08L2666/28 , C08L2666/34
摘要： A composition for thermosetting powder coating, which comprises
(a) an acrylic copolymer of high softening point having an epoxy equivalent of 250-1,000 g/eq and a softening point of 90-160 o C, (b) an acrylic copolymer of low softening point having an epoxy equivalent of 200-600 g/eq and a softening point of 30-70 o C, (c) a polycarboxylic acid, and (d) optionally, a phosphoric acid ester compound and/or a phosphorous acid ester compound, and wherein the difference in softening point between (a) and (b) is 60-120 o C, the weight ratio of (a)/(b) is 95/5 to 60/40, and the equivalent ratio of [the total epoxy groups of (a) and (b)] : [the acid group of (c)] is 0.5 : 1 to 1 : 0.5. Said composition has excellent storage stability and, when used as a coating for automobiles, gives a film superior in appearance, solvent resistance and acid resistance.-
公开(公告)号：EP0544206A2
公开(公告)日：1993-06-02
申请号：EP92119899.0
申请日：1992-11-23
IPC分类号： C09D133/06 , C08K5/09 , C09D5/03
CPC分类号： C09D133/068 , C08K5/092 , C08L33/068 , C08L2205/02 , C09D137/00 , Y10T428/31511 , C08L33/06 , C08L2666/04 , C08L2666/28 , C08L2666/34
摘要： A composition for thermosetting powder coating, which comprises
(a) an acrylic copolymer of high softening point having an epoxy equivalent of 250-1,000 g/eq and a softening point of 90-160 o C,
(b) an acrylic copolymer of low softening point having an epoxy equivalent of 200-600 g/eq and a softening point of 30-70 o C,
(c) a polycarboxylic acid, and
(d) optionally, a phosphoric acid ester compound and/or a phosphorous acid ester compound,
and wherein the difference in softening point between (a) and (b) is 60-120 o C, the weight ratio of (a)/(b) is 95/5 to 60/40, and the equivalent ratio of [the total epoxy groups of (a) and (b)] : [the acid group of (c)] is 0.5 : 1 to 1 : 0.5.
Said composition has excellent storage stability and, when used as a coating for automobiles, gives a film superior in appearance, solvent resistance and acid resistance.摘要翻译： 一种热固性粉末涂料组合物，其包含（a）具有环氧当量为250-1,000g / eq和软化点为90-160℃的高软化点的丙烯酸共聚物，（b）丙烯酸共聚物， 环氧当量为200-600g / eq，软化点为30-70℃的低软化点，（c）多元羧酸，和（d）任选的磷酸酯化合物和/或磷 酸酯化合物，其中（a）和（b）之间的软化点的差为60-120℃，（a）/（b）的重量比为95/5〜60/40， [（a）和（b）]的全部环氧基的当量比：[（c）的酸基）为0.5:1〜1:0.5。 所述组合物具有优异的储存稳定性，并且当用作汽车涂料时，得到外观优异，耐溶剂性和耐酸性的膜。
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