Method for protecting stone material, marble, brick and concrete from atmospheric agent and pollutant and method for protecting stone surface from decay caused by mural writing with paint, ink or the like |
|||||||
| 申请号 | JP18192288 | 申请日 | 1988-07-22 | 公开(公告)号 | JPH01111785A | 公开(公告)日 | 1989-04-28 |
| 申请人 | Ausimont Spa; Consiglio Nazi Ricerche; | 发明人 | FURANKO PIACHIENTEI; KARURO MANGANERURI DERU FUA; JIYOBANNI MOTSUJI; ADORUFUO PASETSUTEI; ANDOREA SUKARA; | ||||
| 摘要 | PURPOSE: To impart an excellent protection to both of a low degree or middle degree porous material or a high degree porous material by mixing polytetrafluoroethylene, a neutral perfluoropolyether and a functionalized perfluoropolyether. CONSTITUTION: The material such as stone, marble, brick and concrete and a structure composed of these materials is protected from a chemical in the atmosphere and an air pollutant by applying a protecting agent consisting of a mixture of 1-3 components described hereunder on its surface. (1) A fine powder of the polytetrafluoroethylene or a tetrafluoroethylene copolymer containing less than 12% other perfluorinated monomer, (2) a perfluoropolyether having no functional group, and/or (3) the perfluoropolyether or fluoropolyether having a group constituted by a functional group capable of forming a chemical and/or physical bond with the material to be protected at one end or both ends of a chain, or a product obtained by subjecting above described functionalized perfluoropolyether or fluoropolyether to condensation polymerization or ethylenical polymerization. COPYRIGHT: (C)1989,JPO |
||||||
| 权利要求 | |||||||
| 说明书全文 | |||||||
QQ群二维码
意见反馈
意见反馈