Title:
METHOD FOR PREPARING EPOXY-MODIFIED WATERBORNE POLYURETHANE RESIN ANTICORROSIVE COATING
Document Type and Number:
WIPO Patent Application WO/2021/097659
Kind Code:
A1
Abstract:
A method for preparing an epoxy-modified waterborne polyurethane resin anticorrosive coating, comprising the following steps in parts by mass: step one, enabling 15-25 parts of tolylene diisocyanate to react with 20-25 parts of dehydrated polyether diol for two hours; step two, adding 6-10 parts of 1,4-butanediol into the reaction system to react for one hour; step 3, adding 3.5-8 parts of epoxy resin and 6 parts of dimethylolpropionic acid successively to react for three hours, and adding acetone during the reaction; step four, adding 10-15 parts of hydroxypropyl acrylate, a polymerization inhibitor, and a catalyst, and continuing the reaction for 2 hours; step five, adding triethylamine for neutralization reaction, then adding ethylenediamine for chain extension, and finally removing acetone by distillation under reduced pressure; and step six, adding a filler and an auxiliary agent, and stirring same to be uniform, so as to obtain an epoxy-modified waterborne polyurethane resin anticorrosive coating. The overall properties of the coating obtained by the preparation method are improved.
More Like This:
| JPS6080123 | MAGNETIC RECORDING MEDIUM |
| JP2021123713 | COATING MATERIAL |
| JP2013505312 | Hydrophilic polyurethane urea solution |
Inventors:
GUO KAI (CN)
Application Number:
PCT/CN2019/119426
Publication Date:
May 27, 2021
Filing Date:
November 19, 2019
Export Citation:
Assignee:
NANJING ADVANCED BIOLOGICAL MAT & PROCESS EQUIPMENT INSTITUTE CO LTD (CN)
International Classes:
C09D175/08
Foreign References:
| CN106752846A | 2017-05-31 | |||
| CN105038487A | 2015-11-11 | |||
| CN102993405A | 2013-03-27 | |||
| CN102863939A | 2013-01-09 | |||
| CN101824294A | 2010-09-08 | |||
| CN103214653A | 2013-07-24 | |||
| JP2010253942A | 2010-11-11 |
Attorney, Agent or Firm:
BEIJING TINGLI PATENT AGENCY (ORDINARY PARTNERSHIP) (CN)
Download PDF:
Previous Patent: POLYETHYLENE INSULATING MATERIAL FOR HIGH-VOLTAGE DIRECT CURRENT CABLE
Next Patent: METHOD FOR PREPARING GRAPHENE COMPOSITE COATING
Next Patent: METHOD FOR PREPARING GRAPHENE COMPOSITE COATING