- 专利标题： CREPING ADHESIVE, POWDER FOR CREPING ADHESIVE, METHOD FOR PRODUCING CREPING ADHESIVE, AND TOILET PAPER, TISSUE PAPER, TOWEL PAPER, KITCHEN PAPER OR NAPKIN BASE PAPER
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申请号： EP22876569.9申请日： 2022-09-30
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公开(公告)号： EP4411067A1公开(公告)日： 2024-08-07
- 发明人: TAOKA Yuta , FUJIMORI Misuzu
- 申请人： Kuraray Co., Ltd.
- 申请人地址： JP Kurashiki-shi, Okayama 710-0801 1621, Sakazu,
- 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, Okayama 710-0801 1621, Sakazu,
- 代理机构： Müller-Boré & Partner Patentanwälte PartG mbB
- 优先权： JP 21161465 2021.09.30
- 国际申请： JP2022036838 2022.09.30
- 国际公布： WO2023054707 2023.04.06
- 主分类号： D21H27/00
- IPC分类号： D21H27/00 ; C09J129/04 ; C09J177/00 ; D21F5/02 ; D21H17/36 ; D21H19/20 ; D21H21/14
摘要：
Provided is a creping adhesive that is favorable in a thread-forming property, wet adhesiveness, and the like. A creping adhesive contains a PVA (A), wherein at least one of (i) and (ii) below is satisfied. (i) The PVA (A) includes a PVA having a minimum degree of branching of 0.25 or more and 0.93 or less within a range of an absolute molecular weight being 200,000 or more and 800,000 or less, and a ratio Mw/Mn of a weight-average molecular weight Mw to a number-average molecular weight Mn of the PVA (A) is 2.5 or more. (ii) The ratio Mw/Mn of the weight-average molecular weight Mw to the number-average molecular weight Mn of the PVA (A) is 3.8 or more.
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