- 专利标题: ACRYLIC POLYMER COAGULATES
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申请号: US16965481申请日: 2019-01-28
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公开(公告)号: US20210054113A1公开(公告)日: 2021-02-25
- 发明人: Takuro NIIMURA , Masashi AKARI , Hiroshi OZAWA
- 申请人: KURARAY CO., LTD.
- 申请人地址: JP Kurashiki-shi
- 专利权人: KURARAY CO., LTD.
- 当前专利权人: KURARAY CO., LTD.
- 当前专利权人地址: JP Kurashiki-shi
- 优先权: JP2018-013068 20180129
- 国际申请: PCT/JP2019/002731 WO 20190128
- 主分类号: C08F6/22
- IPC分类号: C08F6/22 ; C08F265/06 ; C08F220/18 ; C08F2/24
摘要:
The present invention provides a multilayered acrylic polymer coagulate characterized in that the coagulate has a bulk density of 0.3 to 0.6 g/cm3 and a median diameter of 50 to 400 μm and contains particles having a particle diameter of 75 or less in a proportion of 50% or less, and the amount of alkali metal and alkaline earth metal contained in the coagulate satisfies the following formula (1): Σ(N/a)×(120−Tg)≤100 (1) wherein N represents the amount of alkali metal and alkaline earth metal contained in the coagulate (mmol/kg); Tg represents the glass transition temperature (° C.) of the acetone-soluble matter of the coagulate; and a represents the valency of the alkali metal and alkaline earth metal contained in the coagulate.
公开/授权文献
- US12049533B2 Acrylic polymer coagulates 公开/授权日:2024-07-30
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