发明名称 |
METHOD OF PRODUCING POLYMER BINDER |
摘要 |
FIELD: chemistry. ^ SUBSTANCE: method involves condensation of cyclopentadiene and formaldehyde at 30C in a methanol solvent medium in molar ratio of cyclopentadiene to formaldehyde between 1:1 and 1:3 using 33% potassium hydroxide solution in methanol as a catalyst in amount of 0.2 mol/mol of cyclopentadiene and then drying the product in a vacuum at 100-110C until constant weight for 2-3 hours. Aprotic donor-acceptor solvent of the dimethylformamide or dimethylsulphoxide type is added to methanol in an amount equal to 4 times the weight of 33% potassium hydroxide solution in methanol at the step for mixing reagents. The binder can be used in making casting moulds for precision casting nonferrous metals primarily. ^ EFFECT: high degree of binding formaldehyde with cyclopentadiene, high output of the polymer binder. ^ 2 tbl, 12 ex |
申请公布号 |
RU2405794(C1) |
申请公布日期 |
2010.12.10 |
申请号 |
RU20090142378 |
申请日期 |
2009.11.17 |
申请人 |
GOSUDARSTVENNOE OBRAZOVATEL'NOE UCHREZHDENIE VYSSHEGO PROFESSIONAL'NOGO OBRAZOVANIJA "KUBANSKIJ GOSUDARSTVENNYJ TEKHNOLOGICHESKIJ UNIVERSITET" (GOU VPO "KUBGTU") |
发明人 |
CHENIKOV IGOR' VSEVOLODOVICH;FILONENKO SVETLANA JUR'EVNA;JAS'JAN JURIJ PAVLOVICH |
分类号 |
C08L61/00 |
主分类号 |
C08L61/00 |
代理机构 |
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