专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5534306A Process for the preparation of a multicoat finish, non-aqueous coatings and autocrosslinkable polyacrylate resins 失效
标题翻译：用于制备多面漆，非水性涂料和自交联聚丙烯酸酯树脂的方法
公开(公告)号：US5534306A
公开(公告)日：1996-07-09
申请号：US256553
申请日：1994-07-15
申请人： Ulrike Rockrath , Peter Betz , Ulrich Poth , Georg Wigger
发明人： Ulrike Rockrath , Peter Betz , Ulrich Poth , Georg Wigger
IPC分类号： B05D1/36 , B05D7/00 , B05D7/24 , C08F20/32 , C08F30/08 , C08F220/32 , C08F230/08 , C08G59/32 , C08L61/32 , C09D133/04 , C09D143/04 , C09D163/00 , C08F24/00 , C08F122/04
CPC分类号： B05D7/532 , C09D143/04 , C08L61/32
摘要： The invention relates to a process for the preparation of multicoat finishes of the basecoat/clearcoat type in which transparent topcoats are employed which contain(A) as binder, an autocrosslinkable polyacrylate resin which contains on statistical average at least one epoxide group, at least one acid anhydride group and at least 0.2 tri-, di- or monoalkoxysilane group per molecule, or a mixture of such autocrosslinkable polyacrylate resins, and(B) at least one acid and/or at least one base as crosslinking catalyst.
摘要翻译： PCT No.PCT / EP93 / 00088 Sec。 371日期1994年7月15日 102（e）日期1994年7月15日PCT提交1993年1月15日PCT公布。出版物WO93 / 14882 日本公开日1993年8月5日。本发明涉及一种制备底漆/透明涂层型多面漆的方法，其中采用透明面漆，其含有（A）作为粘合剂，至少包含至少统计学平均的自交联聚丙烯酸酯树脂一个环氧基团，至少一个酸酐基团和每个分子至少0.2个三 - ，二 - 或单烷氧基硅烷基团，或这些自交联聚丙烯酸酯树脂的混合物，和（B）至少一种酸和/或至少一个碱作为交联催化剂。

2. 发明授权

US5780541A Nonaqueous paints 失效
标题翻译：非水性涂料
公开(公告)号：US5780541A
公开(公告)日：1998-07-14
申请号：US578650
申请日：1996-02-20
申请人： Peter Mayenfels , Georg Wigger , Fritz Bartol , Ulrike Rockrath , Ulrich Poth
发明人： Peter Mayenfels , Georg Wigger , Fritz Bartol , Ulrike Rockrath , Ulrich Poth
IPC分类号： C09D161/20 , C08G18/42 , C08G18/62 , C08G18/80 , C08L61/20 , C08L75/04 , C09D133/06 , C09D167/00 , C09D167/08 , C09D175/00 , C09D175/04 , C09D201/06 , C08J3/00 , C08F8/30 , C08K3/20 , C08L75/00
CPC分类号： C09D167/08 , C08G18/4241 , C08G18/6254 , C08G18/8012 , C08G18/8061 , C08G18/8064 , C08G18/8093 , C09D133/066 , C09D167/00 , C09D175/04 , C09D201/06 , C08L61/20 , C08L75/04
摘要： The invention relates to nonaqueous paints which comprise (A) a hydroxyl group-containing synthetic resin or a mixture of hydroxyl group-containing synthetic resins (B) an amino resin or a mixture of amino resins (C) a blocked polyisocyanate or a mixture of blocked polyisocyanates, and (D) a pigment or a mixture of pigments, and are characterized in that component (C) contains both isocyanate groups blocked with a blocking agent (I) and isocyanate groups blocked with a blocking agent (II), in which context the blocking agent (I) is a dialkyl malonate or a mixture of dialkyl malonates, the blocking agent (II) is a blocking agent which is different from (I) and contains active methylene groups, or is an oxime, or is a mixture of these blocking agents, and the ratio of equivalents between the isocyanate groups blocked with (I) and the isocyanate groups blocked with (II) is between 1.0:1.0 and 9.0:1.0.
摘要翻译： PCT No.PCT / EP94 / 02236 Sec。 371日期1996年2月20日 102（e）1996年2月20日PCT PCT 1994年7月7日PCT公布。 WO95 / 03367 PCT公开号日期：1995年2月2日本发明涉及非水性涂料，其包含（A）含羟基的合成树脂或含羟基的合成树脂（B），氨基树脂或氨基树脂（C）的混合物的混合物多异氰酸酯或封端多异氰酸酯的混合物，和（D）颜料或颜料混合物，其特征在于组分（C）含有用封闭剂（I）封端的异氰酸酯基团和用封闭剂封闭的异氰酸酯基团 II），其中封端剂（I）为丙二酸二烷基酯或丙二酸二烷基酯的混合物，所述封端剂（II）为不同于（I）并含有活性亚甲基的封闭剂，或为肟或是这些封闭剂的混合物，并且用（I）封端的异氰酸酯基团与被（II）封端的异氰酸酯基团之间的当量之比在1.0:1.0至9.0:1.0之间。

3. 发明授权

US5516559A Process for the production of a two-coat finish, and nonaqueous coatings suitable for this process 失效
标题翻译：用于生产双层涂层的方法，以及适用于该方法的非水性涂料
公开(公告)号：US5516559A
公开(公告)日：1996-05-14
申请号：US256975
申请日：1994-08-23
申请人： Ulrike Rockrath , Georg Wigger , Ulrich Poth
发明人： Ulrike Rockrath , Georg Wigger , Ulrich Poth
IPC分类号： B05D1/36 , B05D5/06 , B05D7/00 , B05D7/16 , B05D7/24 , C08G18/80 , C09D161/20 , C09D175/00 , C09D175/04
CPC分类号： B05D7/534 , C08G18/8077 , C08G18/8093 , C08G18/8096 , C09D175/04
摘要： The invention relates to a process for the production of two-coat finishes of the basecoat/clearcoat type, in which nonaqueous transparent topcoats are employed, which comprise(A) a synthetic resin containing hydroxyl groups or a mixture of synthetic resins containing hydroxyl groups,(B) an amino resin or a mixture of amino resins, and(C) a blocked polyisocyanate or a mixture of blocked polyisocyanates,in which component (C) comprises isocyanate groups blocked both with a blocking agent (I) and with a blocking agent (II), and the blocking agent (I) being a dialkyl malonate, the blocking agent (II) being a blocking agent which is different from (I) and contains active methylene groups or an oxime, and the ratio of equivalents between the isocyanate groups blocked with (I) and the isocyanate groups blocked with (II) being between 1.0:1.0 and 9.0:1.0.
摘要翻译： PCT No.PCT / EP93 / 00242 Sec。 371日期：1994年8月23日 102（e）日期1994年8月23日PCT提交1993年2月3日PCT公布。公开号WO93 / 15849 日本公开日1993年8月19日。本发明涉及一种制备底漆/透明涂层型双面漆的方法，其中使用非水性透明面漆，其包含（A）含有羟基或混合物的合成树脂含有羟基的合成树脂，（B）氨基树脂或氨基树脂的混合物，和（C）封端多异氰酸酯或封端多异氰酸酯的混合物，其中组分（C）包含用封闭剂封闭的异氰酸酯基团 I）和封闭剂（II），封闭剂（I）为丙二酸二烷基酯，封端剂（II）为不同于（I）的封闭剂，并含有活性亚甲基或肟，以及用（I）封端的异氰酸酯基与用（II）封端的异氰酸酯基之间的当量之比在1.0：1.0和9.0：1.0之间。

4. 发明授权

US5716678A Process for the production of a two-coat finish on a substrate surface 失效
标题翻译：在基材表面上生产双层涂层的方法
公开(公告)号：US5716678A
公开(公告)日：1998-02-10
申请号：US525631
申请日：1995-11-17
申请人： Ulrike Rockrath , Georg Wigger , Fritz Bartol , Peter Betz , Wilfried Stubbe , Angelika Bartelt
发明人： Ulrike Rockrath , Georg Wigger , Fritz Bartol , Peter Betz , Wilfried Stubbe , Angelika Bartelt
IPC分类号： B05D7/00 , C08L61/20 , C09D133/06 , B05D1/38 , B05D3/02 , C08G18/63 , C08L33/06
CPC分类号： B05D7/532 , C09D133/066 , C08L61/20
摘要： A process is disclosed for producing a double-layered covering lacquer by using a transparent covering lacquer containing a hydroxyl group-containing polyacrylate resin produced by polymerizing (a) 10 to 51% by weight 4-hydroxy-n-butylacrylate or 4-hydroxy-n-butylmethacrylate or a mixture of 4-hydroxy-n-butylacrylate and 4-hydroxy-n-butylmethacrylate; (b) 0 to 36% by weight of a hydroxyl group-containing ester of acrylic acid different from (a) or a hydroxyl group-containing ester of methacrylic acid or a mixture of such monomers; (c) 28 to 85% by weight of an aliphatic or cycloaliphatic ester of methacrylic acid different from (a) and (b) with at least 4 C atoms in the alcohol residue or a mixture of such monomers; (d) 0 to 3% by weight of an ethylenically unsaturated carboxylic acid or a mixture of ethylenically unsaturated carboxylic acids and (e) 0 to 20% by weight of an ethylenically unsaturated monomer different from (a), (b), (c) and (d) or a mixture of such monomers, into a polyacrylate resin with a hydroxyl number from 60 to 200, an acid number from 0 to 35 and a number average molecular weight from 1,500 to 10,000. The sum of the parts by weight of components (a), (b), (c), (d) and (e) is always 100% by weight and the composition of the component (c) is selected so that when said component (c) is polymerized alone, a polymethacrylate resin having a glass transition temperature from +10.degree. to +10.degree. C. is obtained.
摘要翻译： PCT No.PCT / EP94 / 00965 Sec。 371日期：1995年11月17日 102（e）日期1995年11月17日PCT 1994年3月26日PCT公布。第WO94 / 22969号公报日期：1994年10月13日公开了一种通过使用含有含羟基的聚丙烯酸酯树脂的透明覆盖漆来生产双层覆盖漆的方法，所述透明覆盖漆通过聚合（a）10至51重量％的4-羟基 - 正丁基丙烯酸酯或4-羟基 - 正丁基甲基丙烯酸酯或4-羟基 - 正丁基丙烯酸酯和4-羟基 - 正丁基甲基丙烯酸酯的混合物; （b）0〜36重量％的不同于（a）的丙烯酸的含羟基的酯或甲基丙烯酸的含羟基的酯或这些单体的混合物; （c）28至85重量％的不同于（a）和（b）的甲基丙烯酸的脂族或脂环族酯在醇残基中的至少4个C原子或这些单体的混合物; （d）0-3重量％的烯键式不饱和羧酸或烯属不饱和羧酸的混合物，和（e）0-20重量％不同于（a），（b），（c）的烯属不饱和单体）和（d）或这些单体的混合物加入羟基数为60至200，酸值为0至35，数均分子量为1,500至10,000的聚丙烯酸酯树脂中。组分（a），（b），（c），（d）和（e）的重量份数之和始终为100重量％，并且组分（c）的组成被选择为使得当所述组分（c）单独聚合，得到玻璃化转变温度为+ 10℃至+ 10℃的聚甲基丙烯酸酯树脂。

5. 发明授权

US06620884B2 Method for producing scratch resistant coatings, especially for producing multi-layer enamels 失效
标题翻译：制备耐刮涂层的方法，特别是用于生产多层瓷漆
公开(公告)号：US06620884B2
公开(公告)日：2003-09-16
申请号：US10083811
申请日：2002-02-27
申请人： Ulrike Röckrath , Peter Betz , Fritz Bartol , Georg Wigger , Hubert Baumgart
发明人： Ulrike Röckrath , Peter Betz , Fritz Bartol , Georg Wigger , Hubert Baumgart
IPC分类号： C08F830
CPC分类号： C09D175/04
摘要： A process for producing scratch-resistant coatings, especially scratch-resistant multicoat finishes, involving use of coating compositions which after curing have a storage modulus E′ in the rubber-elastic range of at least 107.5 Pa and a loss factor tan &dgr; at 20° C. of at least 0.05, the storage modulus E′ and the loss factor having been measured by dynamic mechanical thermoanalysis on free films having a film thickness of 40±10 &mgr;m, and comprise as binders one or more polyacrylate resins having a hydroxyl number of from 100 to 240, an acid number of from 0 to 35, and a number-average molecular weight of from 1500 to 10,000, and as crosslinkers one or more free or blocked isocyanates and/or triazine-based components which crosslink with the hydroxyl groups of the binder to form ether and/or ester structures.
摘要翻译：一种用于生产耐擦伤涂层的方法，特别是耐刮擦多孔涂层，涉及使用固化后的涂料组合物，其橡胶弹性范围中的储能模量E'至少为107.5Pa，损耗因子tanδ在20° C至少为0.05，储存模量E'和损耗因子已经通过动态机械热分析测量，膜厚度为40±10um的游离膜，并且包含作为粘合剂的一种或多种具有羟基数的聚丙烯酸酯树脂 100至240，酸值为0至35，数均分子量为1500至10,000，并且作为交联剂，与羟基交联的一种或多种游离或封闭的异氰酸酯和/或三嗪基组分的粘合剂以形成醚和/或酯结构。

6. 发明授权

US06410646B1 Method for producing scratch resistant coatings, especially for producing multi-layer enamels 失效
标题翻译：制备耐刮涂层的方法，特别是用于生产多层瓷漆
公开(公告)号：US06410646B1
公开(公告)日：2002-06-25
申请号：US09380524
申请日：1999-11-08
申请人： Ulrike Röckrath , Peter Betz , Fritz Bartol , Georg Wigger , Hubert Baumgart
发明人： Ulrike Röckrath , Peter Betz , Fritz Bartol , Georg Wigger , Hubert Baumgart
IPC分类号： C08F890
CPC分类号： C09D175/04
摘要： A process for producing scratch-resistant coatings, especially scratch-resistant multicoat finishes, involving use of coating compositions which, after curing, have a storage modulus E′ in the rubber-elastic range of at least 107.5 Pa and a loss factor tan&dgr; at 20° C. of at least 0.05, the storage modulus E′ and the loss factor having been measured by dynamic mechanical thermoanalysis on free films having a film thickness of 40±10 &mgr;m, and comprise as binders one or more polyacrylate resins having a hydroxyl number of from 100 to 240, an acid number of from 0 to 35, and a number-average molecular weight of from 1500 to 10,000, and as crosslinkers one or more free or blocked isocyanates and/or triazine-based components which crosslink with the hydroxyl groups of the binder to form ether and/or ester structures.
摘要翻译：一种用于生产耐刮擦涂层的方法，特别是耐刮擦多层涂饰，涉及使用涂料组合物，其在固化之后的橡胶弹性范围内的储能模量E'至少为107.5Pa，损耗因子tandelta为20 ℃至少为0.05，储存模量E'和损失因子已经通过动态机械热分析测量了膜厚度为40±10um的游离膜，并且包含作为粘合剂的一种或多种具有羟值的聚丙烯酸酯树脂为100至240，酸值为0至35，数均分子量为1500至10,000，并且作为交联剂，与羟基交联的一种或多种游离或封端的异氰酸酯和/或三嗪基组分组合的粘合剂以形成醚和/或酯结构。

7. 发明申请

US20140329098A1 Coating Agent Compositions, Coatings Made Therefrom And Exhibiting High Scratch Resistance And Good Polishability, And Use Thereof 有权
标题翻译：涂层剂组合物，制成的涂料，具有高耐刮擦性和良好的耐腐蚀性及其用途
公开(公告)号：US20140329098A1
公开(公告)日：2014-11-06
申请号：US14124869
申请日：2012-05-07
申请人： Matthijs Groenewolt , Georg Wigger , Tilo Kühs , Thomas Kepler
发明人： Matthijs Groenewolt , Georg Wigger , Tilo Kühs , Thomas Kepler
IPC分类号： C09D175/06
CPC分类号： C09D175/06 , C08G18/289 , C08G18/6254 , C08G18/792 , C08G18/809 , C09D175/04 , Y10T428/31551
摘要： Disclosed are nonaqueous coating material compositions comprising (A) at least one polyhydroxyl-group-containing compound, (B) at least one polyisocyanate-group-containing compound having free or blocked isocyanate groups, and (D) at least one catalyst for the crosslinking of silane groups, where component (B) comprises at least one structural unit —NR—(X—SiR″x(OR′)3-x) (I), and at least one structural unit —N(X—SiR″x(OR′)3-x)n(X′—SiR″y(OR′)3-y)m (II), wherein in component (B) (i) more than 30 mol % and less than 70 mol % of the originally present isocyanate groups have undergone reaction to form structural units (I) and (II), (ii) more than 25 and less than 36 mol % of the originally present isocyanate groups have undergone reaction to form structural units (II), and (iii) component (B) has at least one polyisocyanate group-containing compound (B2) having free or blocked isocyanate groups and having an acyclic, aliphatic polyisocyanate parent structure.
摘要翻译：公开了包含（A）至少一种含多羟基的化合物，（B）至少一种含有游离或封闭的异氰酸酯基团的含多异氰酸酯基团的化合物和（D）至少一种用于交联的催化剂的非水性涂料组合物的硅烷基团，其中组分（B）包含至少一个结构单元-NR-（X-SiR“x（OR'）3-x）（I）和至少一个结构单元-N（X-SiR”x （OR'）3-x）n（X'-SiR“y（OR'）3-y）m（II），其中在组分（B）（i）中，大于30mol％且小于70mol％原来存在的异氰酸酯基已经形成结构单元（I）和（II）的反应，（ii）大于25且小于36摩尔％的原始存在的异氰酸酯基团已经发生反应以形成结构单元（II），和（iii）组分（B）具有至少一种含有游离或封闭的异氰酸酯基的含多异氰酸酯基团的化合物（B2），并且具有无环脂族多异氰酸酯母体结构 ure。

8. 发明授权

US06355761B1 Coating composition 失效
标题翻译：涂料组成
公开(公告)号：US06355761B1
公开(公告)日：2002-03-12
申请号：US09310593
申请日：1999-05-12
申请人： Hans-Jürgen Figge , Georg Wigger , Marita Schilling
发明人： Hans-Jürgen Figge , Georg Wigger , Marita Schilling
IPC分类号： C08G1810
CPC分类号： C09D175/04 , C08G18/0823 , C08G18/12 , C08G18/4233 , C08G18/6659 , C09D175/06 , C08G18/2865 , C08G18/792 , C08G18/3275 , C08G18/807
摘要： The invention relates to a coating composition comprising at least one OH-functional binder component and at least one component compound, functioning as a crosslinking agent, which has NCO groups blocked with a pyrazole compound. It is characterized in that the component compound which functions as a crosslinking agent is obtainable by a) polymerizing a polyol or a mixture of polyols having a number-average molecular weight in the range from 300-5000 by adding a polyisocyanate compound A or a mixture of polyisocyanate compounds A to give a polyurethane prepolymer, b) chain-extending the polyurethane prepolymer by adding a chain extender compound, to give a polyurethane polymer having free OH groups, c) reacting the OH-containing polyurethane polymer from b) with a polyisocyanate B or a mixture of polyisocyanates B to give a polyisocyanate-polyurethane polymer, and d) free isocyanate groups of the polyisocyanate-polyurethane polymer having been blocked with the pyrazole compound or a mixture of pyrazole compounds.
摘要翻译：本发明涉及一种包含至少一种OH-官能的粘合剂组分和至少一种组分化合物的涂料组合物，其作用为具有用吡唑化合物封闭的NCO基团的交联剂。其特征在于用作交联剂的组分化合物可通过以下方式得到：a）通过加入多异氰酸酯化合物A或其混合物使多元醇或数均分子量为300-5000的多元醇的混合物聚合，的多异氰酸酯化合物A，得到聚氨酯预聚物，b）通过加入扩链剂化合物链延伸聚氨酯预聚物，得到具有游离OH基团的聚氨酯聚合物，c）使来自b）的含OH聚氨酯聚合物与多异氰酸酯 B或多异氰酸酯B的混合物，得到多异氰酸酯 - 聚氨酯聚合物，以及d）被吡唑化合物或吡唑化合物混合物封闭的多异氰酸酯 - 聚氨酯聚合物的游离异氰酸酯基团。

9. 发明授权

US09909029B2 Coating material compositions, coatings made therefrom and exhibiting high scratch resistance and good polishability, and use thereof 有权
公开(公告)号：US09909029B2
公开(公告)日：2018-03-06
申请号：US14124869
申请日：2012-05-07
申请人： Matthijs Groenewolt , Georg Wigger , Tilo Kühs , Thomas Kepler
发明人： Matthijs Groenewolt , Georg Wigger , Tilo Kühs , Thomas Kepler
IPC分类号： C09D175/06 , C08G18/28 , C08G18/62 , C08G18/79 , C08G18/80 , C09D175/04
CPC分类号： C09D175/06 , C08G18/289 , C08G18/6254 , C08G18/792 , C08G18/809 , C09D175/04 , Y10T428/31551
摘要： Disclosed are nonaqueous coating material compositions comprising (A) at least one polyhydroxyl-group-containing compound, (B) at least one polyisocyanate-group-containing compound having free or blocked isocyanate groups, and (D) at least one catalyst for the crosslinking of silane groups, where component (B) comprises at least one structural unit —NR—(X—SiR″x(OR′)3−x) (I), and at least one structural unit —N(X—SiR″x(OR′)3−x)n(X′—SiR″y(OR′)3−y)m (II), wherein in component (B) (i) more than 30 mol % and less than 70 mol % of the originally present isocyanate groups have undergone reaction to form structural units (I) and (II), (ii) more than 25 and less than 36 mol % of the originally present isocyanate groups have undergone reaction to form structural units (II), and (iii) component (B) has at least one polyisocyanate group-containing compound (B2) having free or blocked isocyanate groups and having an acyclic, aliphatic polyisocyanate parent structure.

10. 发明授权

US06815494B2 Aqueous coating material, especially aqueous filler or protective base against stones 失效
标题翻译：水性涂料，特别是水性填料或防锈底物
公开(公告)号：US06815494B2
公开(公告)日：2004-11-09
申请号：US10396893
申请日：2003-03-25
申请人： Georg Wigger , Ulrike Röckrath , Bärbel Wiatr , Marita Schilling , Ralf Stein
发明人： Georg Wigger , Ulrike Röckrath , Bärbel Wiatr , Marita Schilling , Ralf Stein
IPC分类号： C08J303
CPC分类号： C08G18/12 , C08G18/0823 , C08G18/348 , C08G18/4288 , C08G18/6659 , C09D175/04 , Y10T428/31511 , Y10T428/31551 , C08G18/42 , C08G18/286 , C08G18/792 , C08L75/04 , C08L67/00
摘要： Aqueous coating material comprising (A) water-dispersible hydroxy-functional binder component containing urethane groups, (B) water-dispersible binder component containing urethane groups and blocked isocyanate groups, (C) water-dispersible amino resin, and optionally (D) water-dispersible hydroxy-functional polyester, the binder component (B) being preparable by (B1) preparing a polyurethane prepolymer containing isocyanate groups from at least one polyol and at least one polyisocyanate, (B2) reacting the polyurethane prepolymer (B1) containing isocyanate groups with a chain extender to give a hydroxyl-containing chain-extended polyurethane prepolymer, (B3) reacting the hydroxyl-containing chain-extended polyurethane prepolymer (B2) with at least one polyisocyanate to give a further polyurethane prepolymer containing isocyanate groups, and (B4) blocking some or all of the isocyanate groups of the chain-extended polyurethane prepolymer (B3) containing isocyanate groups with a blocking agent to give a polyurethane containing blocked isocyanate groups, and then, where appropriate, (B5) reacting remaining free isocyanate groups in the polyurethane (B4) with a chain extender.
摘要翻译：包含（A）含有氨基甲酸酯基的水分散性羟基官能粘合剂组分的水性涂料，（B）含有氨基甲酸酯基和封端异氰酸酯基的水分散性粘合剂组分，（C）水分散性氨基树脂和任选的（D）水可分解的羟基官能的聚酯，（B1）由至少一种多元醇和至少一种多异氰酸酯制备含有异氰酸酯基团的聚氨酯预聚物（B2）制备的粘合剂组分（B），（B2）使含有异氰酸酯基团的聚氨酯预聚物与扩链剂一起得到含羟基的链延长的聚氨酯预聚物，（B3）使含羟基的链延长的聚氨酯预聚物（B2）与至少一种多异氰酸酯反应，得到另外的含异氰酸酯基团的聚氨酯预聚物，和（B4 ）阻断含有异氰酸酯基团的链延长聚氨酯预聚物（B3）的一部分或全部异氰酸酯基团得到含有封端异氰酸酯基团的聚氨酯，然后在适当的情况下（B5）使聚氨酯（B4）中剩余的游离异氰酸酯基与扩链剂反应。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式