您的位置: 首页 > 农业专利 > 详情页

Composition durcissante
专利权人:
DENTSPLY DETREY GMBH
发明人:
申请号:
EP07024277.1
公开号:
EP2070507B1
申请日:
2007.12.14
申请国别(地区):
EP
年份:
2013
代理人:
摘要:
A hardening composition comprising a particulate glass, said glass comprising 10-35% by weight of silica, 10-35% by weight of alumina, 3-30% by weight of zinc oxide, 4-30% by weight of P 2 O 5 and 3-25% by weight of fluoride, and an acidic copolymer reactive with the particulate glass under aqueous conditions. An aqueous polymer solution comprising 10 to 65% by weight of the acidic copolymer of the hardening composition with a mean molecular weight of from 50,000 to 200,000, obtainable by a process comprising the copolymerization of a mixture containing acrylic acid and an acrylic acid ester (I) and / or a compound of the formula (II) and, optionally, a compound of the formula (III): wherein k is an integer of from 1 to 5; h is an integer from 0 to (5 - k); n is an integer of from 1 to 3; R1 is hydrogen or a C1-6 alkyl group, and; R2 and R3 independently represent hydrogen, a C1-6 alkyl group or a moiety of the following formula (IV): wherein m independently is an integer of from 0 to 3, and L is -CH 2 - or -CH=CH-; provided that at least one of R1, R2 or R3 is not hydrogen.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

意 见 箱

匿名:登录

个人用户登录

找回密码

第三方账号登录

忘记密码

个人用户注册

必须为有效邮箱
6~16位数字与字母组合
6~16位数字与字母组合
请输入正确的手机号码

信息补充