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- Process for the continuous preparation of water-absorbent polymers
专利权人:
에보니크 데구사 게엠베하
发明人:
보르홀트, 헤르베르트,루돌프, 헨리,라이만, 아르민,벡커, 볼커,정, 데트레프,밴 스티파웃트, 맨프레드
申请号:
KR1020147021945
公开号:
KR1016356940000B1
申请日:
2012.12.13
申请国别(地区):
KR
年份:
2016
代理人:
摘要:
The present invention generally relates to a process for preparing an aqueous monomer solution comprising: (i) preparing an aqueous monomer solution comprising an at least partially neutralized, monoethylenically unsaturated monomer (α1) containing a carboxylic acid group and at least one crosslinker (α3); (Ii) optionally adding fine particles of a water-absorbing polymer to said aqueous monomer solution; (Iii) adding at least one component of a polymerization initiator system or a polymerization initiator system comprising two or more components to the aqueous monomer solution; (iv) reducing the oxygen content of the aqueous monomer solution; (v) filling the polymerization reactor with the aqueous monomer solution; (vi) polymerizing the monomer of the aqueous monomer solution in the polymerization reactor; (Iii) releasing a polymer gel strand out of the polymerization reactor, and optionally pulverizing the polymer gel, thereby obtaining polymer gel particles; (Iii) drying the polymer gel particles; (ix) milling the dried polymer gel particles to thereby obtain a particulate water-absorbing polymer particle; (x) arranging the milled water-absorbent polymer particles in size order; And (xi) treating the surface of the water-absorbing polymer particles arranged in the milling and size order; Here, the gel particles obtained in process step (ⅶ) by process step (ⅷ) is filled with the surface of the belt material of the belt drier in the position L 0, and later dried while further through the belt dryer, in which the belt material is Absorbing polymer particles before contact with the gel particles. The present invention also relates to a process for producing water-absorbing polymer particles, a composite material, a composite material obtainable by such a process, a composite material obtainable by such a process, a chemical product and the use of the water- .본 발명은 일반적으로 (i) 카르복실산기를 함유하는 적어도 부분적으로 중화된, 모노에틸렌계 불포화 단량체 (α1) 및 적어도 하나의 가교제 (α3)를 포함하는 수성 단량체 용액을 제조하는 단계; (
来源网站:
中国工程科技知识中心
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