자화수 처리장치
    32.
    实用新型
    자화수 처리장치 失效
    水处理设备

    公开(公告)号:KR2019950002023Y1

    公开(公告)日:1995-03-24

    申请号:KR2019920008243

    申请日:1992-05-14

    Applicant: 박상돈

    Inventor: 박상돈

    Abstract: 내용 없음.

    량이증대되게한펄프의제조방법
    34.
    发明授权
    량이증대되게한펄프의제조방법 失效
    一种制造具有增加量的纸浆的方法

    公开(公告)号:KR1019930003393B1

    公开(公告)日:1993-04-26

    申请号:KR1019900011180

    申请日:1990-07-20

    Inventor: 정정화 박상돈

    Abstract: This is new semi ground chemical pulp whose quantity is increased by 220 % and which can be used as source material of high-quality printing paper, toilet paper, and wall paper. The manufacturing method comprises: (A) beating natural pulp in water; (B) dropping ammonium chloride and resorcinol formaldehyde, and stirring; (C) adding borax solution, sodium bicarbonate, dil. hydrochloride, formic acid, sodium hydroxide in order and stirring; (D) aging for 10 hour; (E) rinsing 2-3 times; and (F) dewatering and drying.

    Abstract translation: 这是新的半地面化学浆,其数量增加了220%,可以作为高品质印刷纸,卫生纸和墙纸的原料。 制造方法包括:(A)在水中打浆天然纸浆; (B)滴加氯化铵和间苯二酚甲醛,并搅拌; (C)加硼砂溶液,碳酸氢钠,稀释。 盐酸盐,甲酸,氢氧化钠,并搅拌; (D)老化10小时; (E)冲洗2-3次; 和(F)脱水和干燥。

    35.
    外观设计
    失效

    公开(公告)号:KR3001361180000S

    公开(公告)日:1993-03-02

    申请号:KR3019920001505

    申请日:1992-02-07

    Applicant: 박상돈

    Designer: 박상돈

    36.
    外观设计
    失效

    公开(公告)号:KR3001293320000S

    公开(公告)日:1992-08-14

    申请号:KR3019910014548

    申请日:1991-10-01

    Applicant: 박상돈

    Designer: 박상돈

    37.
    外观设计
    失效

    公开(公告)号:KR3001217680000S

    公开(公告)日:1992-01-15

    申请号:KR3019910001632

    申请日:1991-02-07

    Applicant: 박상돈

    Designer: 박상돈

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