发明授权
- 专利标题： Process for preparing paper size resin
- 专利标题（中）： 纸张树脂制备方法
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申请号： US486746申请日： 1974-07-09
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公开(公告)号： US3953407A公开(公告)日： 1976-04-27
- 发明人: Hideo Hayashi , Hisatake Sato , Shiro Saito
- 申请人： Hideo Hayashi , Hisatake Sato , Shiro Saito
- 申请人地址： JA Tokyo
- 专利权人： Nippon Oil Co., Ltd.
- 当前专利权人： Nippon Oil Co., Ltd.
- 当前专利权人地址： JA Tokyo
- 优先权： JA48-79297 19730716
- 主分类号： C08F8/00
- IPC分类号： C08F8/00 ; C08C19/28 ; C08F8/44 ; C08F8/46 ; D21H17/34 ; D21H17/43 ; C08F240/00
摘要：
A process for preparing a resin suitable for preparation of sizes, which comprises polymerizing a cracked oil fraction which is obtained by the thermal cracking of petroleums, has a boiling point of 20.degree. to 220.degree.C., and contains diolefins, thereby to form a hydrocarbon resin, reacting the resulting hydrocarbon resin with an unsaturated dicarboxylic acid or its anhydride, and heating the acid-modified resin in the presence of water or an alkali metal hydroxide at a temperature of 130.degree. to 350.degree.C.
公开/授权文献
- US5700676A Modified subtilisins having amino acid alterations 公开/授权日：1997-12-23