发明授权
- 专利标题： Blowing agent powder and process for producing the same
- 专利标题（中）： 发泡粉及其制造方法
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申请号： US09113511申请日： 1998-07-10
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公开(公告)号： US06399201B1公开(公告)日： 2002-06-04
- 发明人: Tsukasa Maekawa , Toshinori Takao , Sadafumi Shono , Chiaki Yasumaru , Shigeru Sumitomo , Nobuyuki Ueda , Yoshifumi Tachi
- 申请人： Tsukasa Maekawa , Toshinori Takao , Sadafumi Shono , Chiaki Yasumaru , Shigeru Sumitomo , Nobuyuki Ueda , Yoshifumi Tachi
- 优先权： JP10-069618 19980319; JP10-107262 19980417
- 主分类号： B32B516
- IPC分类号： B32B516
摘要：
A powder comprising a blowing agent powder core which is coated with at least one oil-like substance on its surface, and a process for producing a powder comprising a blowing agent powder core which is coated with at least one oil-like substance on its surface, comprising the following steps (a) and (b): (a) adding at least one oil-like substance in the form of a mist to a blowing agent powder; and (b) mixing the oil-like substance with the blowing agent powder under such mixing conditions that the blowing agent powder is less susceptible to pulverization.