CN107236111A - 车门密封条微量发泡组合物及发泡工艺 - Google Patents
车门密封条微量发泡组合物及发泡工艺 Download PDFInfo
- Publication number
- CN107236111A CN107236111A CN201710499240.4A CN201710499240A CN107236111A CN 107236111 A CN107236111 A CN 107236111A CN 201710499240 A CN201710499240 A CN 201710499240A CN 107236111 A CN107236111 A CN 107236111A
- Authority
- CN
- China
- Prior art keywords
- component
- parts
- foam
- micro
- weight
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
- C08G18/7607—Compounds of C08G18/7614 and of C08G18/7657
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
- B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
- B29C44/1271—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements the preformed parts being partially covered
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/4009—Two or more macromolecular compounds not provided for in one single group of groups C08G18/42 - C08G18/64
- C08G18/4072—Mixtures of compounds of group C08G18/63 with other macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4804—Two or more polyethers of different physical or chemical nature
- C08G18/4808—Mixtures of two or more polyetherdiols
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/63—Block or graft polymers obtained by polymerising compounds having carbon-to-carbon double bonds on to polymers
- C08G18/632—Block or graft polymers obtained by polymerising compounds having carbon-to-carbon double bonds on to polymers onto polyethers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
- C08G18/7614—Polyisocyanates or polyisothiocyanates cyclic aromatic containing only one aromatic ring
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
- C08G18/7657—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings
- C08G18/7664—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2110/00—Foam properties
- C08G2110/0041—Foam properties having specified density
- C08G2110/0058—≥50 and <150kg/m3
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2110/00—Foam properties
- C08G2110/0083—Foam properties prepared using water as the sole blowing agent
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
本发明公开了一种车门密封条微量发泡组合物,由组分A和B按重量比100:24~28组成,其中,组分A以重量份数计,原料如下:聚醚多元醇40~60份,聚合物多元醇60~40份,硬泡聚醚多元醇4~6份,开孔硅油1.8~2.2份、三乙烯二胺1.2~1.4份,有机锡催化剂0.25~0.35份,水1.5~1.7份,色浆0.4~0.6份,所述聚醚多元醇和聚合物多元醇加起来为100份;组分B由甲苯二异氰酸酯与多苯基多亚甲基多异氰酸酯混合得到,其中甲苯二异氰酸酯占组分B的重量百分比为20~80%,多苯基多亚甲基多异氰酸酯占组分B的重量百分比为20~80%。还公开了车门密封条微量发泡工艺。
Description
技术领域
本发明涉及车门密封条技术领域,具体涉及一种车门密封条微量发泡组合物及发泡工艺。
背景技术
车门密封条可以用橡胶、塑料或橡塑材料通过挤塑成型,然后嵌在车门上,其工艺较为复杂且多了一道工序。聚氨酯发泡生产密封条操作简单,不需要模具,生产密封条可以在车门板上一体成型。其难点在于对原料粘度、反应过程中粘度的变化以及发泡反应速度的掌控,要求其原料浇注到门板上后马上发生发泡反应,粘度迅速增加,原料不再在门板上流淌,且发泡倍率适中,固化成型快,不收缩,这样才能在门板上形成外观匀称的密封条,但是目前市面上很少有能够用于批量规模生产上的在车门板上一体成型的密封条发泡配方和工艺。
发明内容
本发明的目的是针对上述问题,提供一种能够一体化成型、工艺简单、产品硬度适中的车门密封条微量发泡组合物及发泡工艺。
本发明解决其技术问题采用的技术方案:
一种车门密封条微量发泡组合物,由组分A和B按重量比100:(24~28)组成,其中,
组分A以重量份数计,原料如下:
聚醚多元醇40~60份,聚合物多元醇60~40份,硬泡聚醚多元醇4~6份,开孔硅油1.8~2.2份、三乙烯二胺1.2~1.4份,有机锡催化剂0.25~0.35份,水1.5~1.7份,色浆0.4~0.6份,所述聚醚多元醇和聚合物多元醇加起来为100份;
组分B由甲苯二异氰酸酯与多苯基多亚甲基多异氰酸酯混合得到,其中甲苯二异氰酸酯占组分B的重量百分比为20~80%,多苯基多亚甲基多异氰酸酯占组分B的重量百分比为20~80%。
所述聚醚多元醇为羟值30-36mg KOH/g的高活性聚醚多元醇,平均分子量为4600-5200;所述聚合物多元醇羟值在23-29mg KOH/g,固含量为26-30%;所述硬泡聚醚多元醇羟值在700-800mg KOH/g。
一种车门密封条微量发泡工艺,包括如下步骤:
(1)配料:
配组分A:取权利要求1或2所述的组分A,将聚醚多元醇和聚合物多元醇按比例加入配料釜中,开启搅拌,依次加入开孔硅油、三乙烯二胺、有机锡催化剂、硬泡聚醚多元醇、水、色浆在配料釜里,搅拌30~50分钟;
配组分B:取权利要求1或2所述的组分B,混合均匀即得;
(2)参数设定:将上述配制的组分A和组分B抽到密封条微量发泡机里,调节浇注比例为组分A和组分B按重量比100:(24~28),调节原料温度在20-30℃,设定浇注流量,编制浇注轨迹;
(3)浇注发泡:按既定轨迹启动浇注作业,在门板上自由发泡,即得门板密封条。
在所述步骤(2)参数设定中,设置微量发泡机的浇注流量为1ml/s。
硬泡聚醚多元醇起交联剂作用且有自催化功能,固化快;开孔硅油为表面活性剂,起稳定原料体系和发泡过程中调节泡孔大小及开闭孔的作用;胺催化剂为三乙烯二胺,为发泡过程中的平衡催化剂,起到发泡反应和凝胶反应的催化平衡作用;有机锡催化剂为强凝胶催化剂加快产品固化成型;化学发泡剂用水,其与B料反应产生二氧化碳气体,从而使产品产生泡孔结构;色浆为常用聚氨酯泡沫用色浆,为泡沫着色。
本发明的有益效果是:1、使用了胺醚(硬泡聚醚多元醇)做交联剂,有自催化作用,后固化更快,且能提高密封条硬度;2、本发明微量发泡组合物和工艺使用微量发泡设备,最小吐料量在1g/s甚至更低,该设备可数控编程浇注轨迹,也可导入CAD图做浇注轨迹,操作简单、能够精准成型;3、自由发泡一体化成型,工艺简单、工序少,连修边工序都省了。本发明能够占领市场先机,市场前景好。
具体实施方式
下面结合实施例对本发明作进一步说明,但并不因此而限制本发明。
实施例1采用微量发泡制作车门密封条
(1)配料:将聚醚多元醇(330N)60公斤,聚合物多元醇(3630)40公斤加入到配料釜中,开启搅拌(60-80RPM),依次加入开孔硅油2.2公斤,胺催化剂三乙烯二胺1.4公斤,有机锡催化剂0.25公斤,硬泡聚醚多元醇(牌号403)6公斤,化学发泡剂水1.5公斤,色浆0.4公斤,持续低速搅拌30分钟,即配得A料。TDI和MDI按重量比2:8混合均匀,配得B料。
(2)参数设定:将配得的A料和B料抽到微量发泡机料罐里,调节原料温度在20-30℃,调节浇注比例为100:24,设定好浇注流量1ml/s,编制好浇注轨迹。
(3)浇注发泡:按既定轨迹启动浇注作业,微量发泡机发泡头沿轨迹移动,均匀吐出A料、B料的混合物,在门板上自由发泡,即得门板密封条。
(4)产品性能指标:
①密封条密度:100--110Kg/m3;
②密封条邵A硬度:70-80度;
③泡沫阻燃性:燃烧速度≤100mm/min。
实施例2采用微量发泡制作车门密封条
(1)配料:将聚醚多元醇(3135)40公斤,聚合物多元醇(3628)60公斤加入到配料釜中,开启搅拌(60-80RPM),依次加入开孔硅油1.8公斤,胺催化剂三乙烯二胺1.2公斤,有机锡催化剂0.35公斤,硬泡聚醚多元醇(牌号403)4公斤,化学发泡剂水1.7公斤,色浆0.6公斤,持续低速搅拌40分钟,即配得A料。TDI和MDI按重量比3:7混合均匀,配得B料。
(2)参数设定:将配得的A料和B料抽到微量发泡机料罐里,调节原料温度在20-30℃,调节浇注比例为100:28,设定好浇注流量1ml/s,编制好浇注轨迹。
(3)浇注发泡:按既定轨迹启动浇注作业,微量发泡机发泡头沿轨迹移动,均匀吐出A料、B料的混合物,在门板上自由发泡,即得门板密封条。
(4)产品性能指标:
①密封条密度:80--90Kg/m3;
②密封条邵A硬度:70-75度;
③泡沫阻燃性:燃烧速度≤100mm/min(美国汽车行业阻燃标准)。
实施例3采用微量发泡制作车门密封条
(1)配料:将聚醚多元醇(330G)50公斤,聚合物多元醇(104)50公斤加入到配料釜中,开启搅拌(60-80RPM),依次加入开孔硅油2公斤,胺催化剂三乙烯二胺1.3公斤,有机锡催化剂0.3公斤,硬泡聚醚多元醇(牌号403)5公斤,化学发泡剂水1.6公斤,色浆0.5公斤,持续低速搅拌50分钟,即配得A料。TDI和MDI按重量比8:2混合均匀,配得B料。
(2)参数设定:将配得的A料和B料抽到微量发泡机料罐里,调节原料温度在20-30℃,调节浇注比例为100:26,设定好浇注流量1ml/s,编制好浇注轨迹。
(3)浇注发泡:按既定轨迹启动浇注作业,微量发泡机发泡头沿轨迹移动,均匀吐出A料、B料的混合物,在门板上自由发泡,即得门板密封条。
(4)产品性能指标:
①密封条密度:90--100Kg/m3;
②密封条邵A硬度:75-80度;
③泡沫阻燃性:燃烧速度≤100mm/min。
Claims (4)
1.一种车门密封条微量发泡组合物,其特征在于:由组分A和B按重量比100:(24~28)组成,其中,
组分A以重量份数计,原料如下:
聚醚多元醇40~60份,聚合物多元醇60~40份,硬泡聚醚多元醇4~6份,开孔硅油1.8~2.2份、三乙烯二胺1.2~1.4份,有机锡催化剂0.25~0.35份,水1.5~1.7份,色浆0.4~0.6份,所述聚醚多元醇和聚合物多元醇加起来为100份;
组分B由甲苯二异氰酸酯与多苯基多亚甲基多异氰酸酯混合得到,其中甲苯二异氰酸酯占组分B的重量百分比为20~80%,多苯基多亚甲基多异氰酸酯占组分B的重量百分比为20~80%。
2.如权利要求1所述的车门密封条微量发泡组合物,其特征在于:所述聚醚多元醇为羟值30-36mg KOH/g的高活性聚醚多元醇,平均分子量为4600-5200;所述聚合物多元醇羟值在23-29mg KOH/g,固含量为26-30%;所述硬泡聚醚多元醇羟值在700-800mg KOH/g。
3.一种车门密封条微量发泡工艺,其特征在于:包括如下步骤:
(1)配料:
配组分A:取权利要求1或2所述的组分A,将聚醚多元醇和聚合物多元醇按比例加入配料釜中,开启搅拌,依次加入开孔硅油、三乙烯二胺、有机锡催化剂、硬泡聚醚多元醇、水、色浆在配料釜里,搅拌30~50分钟;
配组分B:取权利要求1所述的组分B,混合均匀即得;
(2)参数设定:将上述配制的组分A和组分B抽到密封条微量发泡机里,调节浇注比例为组分A和组分B按重量比100:(24~28),调节原料温度在20-30℃,设定浇注流量,编制浇注轨迹;
(3)浇注发泡:按既定轨迹启动发泡浇注,在门板上自由发泡,即得门板密封条。
4.如权利要求3所述的车门密封条微量发泡工艺,其特征在于:在所述步骤(2)参数设定中,设置微量发泡机的浇注流量为1ml/s。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710499240.4A CN107236111A (zh) | 2017-06-27 | 2017-06-27 | 车门密封条微量发泡组合物及发泡工艺 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710499240.4A CN107236111A (zh) | 2017-06-27 | 2017-06-27 | 车门密封条微量发泡组合物及发泡工艺 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN107236111A true CN107236111A (zh) | 2017-10-10 |
Family
ID=59987960
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201710499240.4A Pending CN107236111A (zh) | 2017-06-27 | 2017-06-27 | 车门密封条微量发泡组合物及发泡工艺 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN107236111A (zh) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1076933A (zh) * | 1992-03-31 | 1993-10-06 | 宋兆生 | 高回弹低密度模塑聚氨酯泡沫的制备方法 |
CN102070764A (zh) * | 2010-12-24 | 2011-05-25 | 东莞市源聚德实业有限公司 | 一种医疗骨架配件用的载体海绵及其制备方法 |
CN102140159A (zh) * | 2010-11-26 | 2011-08-03 | 山东东大一诺威聚氨酯有限公司 | 一种用于冷熟化聚氨酯慢回弹泡沫的环保型组合料及其制备方法 |
CN102796239A (zh) * | 2011-05-26 | 2012-11-28 | 苏州井上高分子新材料有限公司 | 聚氨酯半硬质泡沫 |
CN103254388A (zh) * | 2013-05-24 | 2013-08-21 | 淄博德信联邦化学工业有限公司 | 高拉伸强度海绵及其制备方法 |
CN104448225A (zh) * | 2014-12-09 | 2015-03-25 | 淄博正大节能新材料有限公司 | 电视背景墙用聚氨酯及其制备方法 |
CN105524248A (zh) * | 2015-12-18 | 2016-04-27 | 山东蓝星东大化工有限责任公司 | 车门内侧壁用聚醚组合料及其制备方法 |
-
2017
- 2017-06-27 CN CN201710499240.4A patent/CN107236111A/zh active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1076933A (zh) * | 1992-03-31 | 1993-10-06 | 宋兆生 | 高回弹低密度模塑聚氨酯泡沫的制备方法 |
CN102140159A (zh) * | 2010-11-26 | 2011-08-03 | 山东东大一诺威聚氨酯有限公司 | 一种用于冷熟化聚氨酯慢回弹泡沫的环保型组合料及其制备方法 |
CN102070764A (zh) * | 2010-12-24 | 2011-05-25 | 东莞市源聚德实业有限公司 | 一种医疗骨架配件用的载体海绵及其制备方法 |
CN102796239A (zh) * | 2011-05-26 | 2012-11-28 | 苏州井上高分子新材料有限公司 | 聚氨酯半硬质泡沫 |
CN103254388A (zh) * | 2013-05-24 | 2013-08-21 | 淄博德信联邦化学工业有限公司 | 高拉伸强度海绵及其制备方法 |
CN104448225A (zh) * | 2014-12-09 | 2015-03-25 | 淄博正大节能新材料有限公司 | 电视背景墙用聚氨酯及其制备方法 |
CN105524248A (zh) * | 2015-12-18 | 2016-04-27 | 山东蓝星东大化工有限责任公司 | 车门内侧壁用聚醚组合料及其制备方法 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN105111397B (zh) | 一种低voc高回弹聚氨酯泡沫组合料及其制备方法 | |
CN101210066B (zh) | 一种整皮聚氨酯泡沫组合物 | |
US3991147A (en) | Process for molding foamed plastics from reaction mixtures involving closed mold filling with the avoidance of gas bubble entrainment | |
CN105637021A (zh) | 膨胀热塑性弹性体的制备 | |
CN102504522B (zh) | 用于生产抛光轮的聚氨酯弹性体组合物 | |
CN103261253B (zh) | 使用脂族二醇增链剂和仲胺的混合物制备的聚氨酯弹性体 | |
CN103570902B (zh) | 高密度聚氨酯及原料组合物、组合聚醚、制备方法和用途 | |
KR100893355B1 (ko) | 폐 폴리우레탄폼으로부터 재생폴리올의 합성방법 및 상기 방법으로 제조된 재생폴리올을 이용한 폴리우레탄 발포폼 조성물 | |
CN111518252B (zh) | 一种聚氨酯自结皮泡沫及其制备方法 | |
CN105238070A (zh) | 一种单组份加成型液体硅橡胶及其制备方法 | |
CN105647166B (zh) | 一种相变储能型沥青聚氨酯硬质泡沫及其制备方法 | |
CN103097423B (zh) | 使用锌催化剂制备的聚氨酯 | |
CN101575431A (zh) | 一种可注塑成型的eva发泡组合物 | |
CN105294991A (zh) | 一种冷熟化高回弹泡沫及其制备方法 | |
CN107163216A (zh) | 一种耐高温高回弹聚氨酯泡沫组合物及其制备方法 | |
CN106543398A (zh) | 一种注浆填充型聚氨酯材料及其制备方法 | |
CN107236111A (zh) | 车门密封条微量发泡组合物及发泡工艺 | |
CN101469052A (zh) | 轿车用聚氨酯缓冲止位块的制备方法 | |
CN107759765A (zh) | 一种大涌水量隧道注浆堵漏加固高聚物材料的制备及其应用 | |
CN105713401B (zh) | 一种全水发泡沥青聚氨酯硬质泡沫及其制备方法 | |
CN105647165B (zh) | 一种沥青聚氨酯硬质泡沫及其制备方法 | |
CN106674480A (zh) | Ndi改性mdi基聚氨酯微孔弹性体的制备方法 | |
CN106560480A (zh) | 一种高流动性可降解聚氨酯鞋材的配方及制备方法 | |
CN103788332B (zh) | Ndi改性mdi基聚氨酯微孔弹性体的制备方法 | |
DE19521315A1 (de) | Verfahren und Vorrichtung zur Herstellung von PUR - Sandwich - Formteile |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
RJ01 | Rejection of invention patent application after publication | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171010 |