KR102073446B1 - 흡수성 수지, 흡수체 및 흡수성 물품 - Google Patents
흡수성 수지, 흡수체 및 흡수성 물품 Download PDFInfo
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- KR102073446B1 KR102073446B1 KR1020157005905A KR20157005905A KR102073446B1 KR 102073446 B1 KR102073446 B1 KR 102073446B1 KR 1020157005905 A KR1020157005905 A KR 1020157005905A KR 20157005905 A KR20157005905 A KR 20157005905A KR 102073446 B1 KR102073446 B1 KR 102073446B1
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- Prior art keywords
- water
- crosslinking agent
- absorbent resin
- ethylenically unsaturated
- mol
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Abstract
Description
[도 2] 흡수성 물품의 변형 시간을 측정할 때의 개략 구성을 나타내는 위에서 본 상면도 이다.
1 뷰렛부
10 뷰렛
11 공기 도입관
12 코크
13 코크
14 고무 마개
2 도관
3 측정대
4 측정부
40 원통
41 나일론 메쉬
42 추
5 흡수성 수지
6 턴테이블
7 흡수성 물품
Claims (11)
- 수용성 에틸렌성 불포화 단량체를, 탄화수소 분산매 중에서, 라디칼 중합 개시제를 이용하여 역상 현탁 중합을 실시하여 얻어진 흡수성 수지이며, 하기 (1) ~ (3)의 특성을 갖추고 있는 것을 특징으로 하는 흡수성 수지:
(1) 생리 식염수 보수능이 38g/g 이상인 것,
(2) 4. 14㎪ 하중 하에서의 생리 식염수 흡수능이 15mL/g 이상인 것,
(3) 50배 팽윤시 겔의 tanδ가 2.10 × 10-2 이상인 것. - 제 1항에 있어서,
상기 수용성 에틸렌성 불포화 단량체가, (메타)아크릴산 및 그 염, (메타)아크릴 아미드, 및 N, N-디메틸 아크릴 아미드로 구성된 군으로부터 선택된 적어도 1종인, 흡수성 수지. - 제 1항에 있어서,
흡수성 수지가 내부 가교제 및 후 가교제에 의해 가교되는, 흡수성 수지. - 제 3항에 있어서,
내부 가교제의 사용량이, 중합에 붙은 수용성 에틸렌성 불포화 단량체 1몰당, 0.000015 ~ 0.00020몰이며, 후 가교제의 사용량이, 중합에 붙은 수용성 에틸렌성 불포화 단량체 1몰당, 0.00025 ~ 0.0010몰인, 흡수성 수지. - 제 3항에 있어서,
내부 가교제 및 후 가교제가, 폴리글리시딜 화합물인, 흡수성 수지. - 제 1항 내지 제 5항 중 어느 한 항의 흡수성 수지와 친수성 섬유를 포함하는 흡수체.
- 제 6항의 흡수체를, 액체 투과성 시트와 액체 불투과성 시트와의 사이에 유지하게 되는 흡수성 물품.
- 흡수성 수지의 제조 방법에 있어서,
흡수성 수지가, 하기 (1) ~ (3)의 특성을 구비한 것이며,
(1) 생리 식염수 보수능이 38g/g 이상인 것,
(2) 4. 14㎪ 하중 하에서의 생리 식염수 흡수능이 15mL/g 이상인 것,
(3) 50배 팽윤시 겔의 tanδ가 2.10 × 10-2 이상인 것,
이고, 하기 제 1 공정 및 제 2 공정을 포함하고,
탄화 수소 분산매 중에서, 라디칼 중합 개시제 및 내부 가교제의 존재 하에서 수용 성 에틸렌성 불포화 단량체의 역상 현탁 중합을 실시하는 제 1 공정,
상기 제 1 공정에서 얻어진 현탁 중합 입자를 후 가교제에 의해 가교시킨 제 2 공정,
인 것이고,
여기에서, 제 1 공정에서의 내부 가교제의 사용량이, 중합에 붙은 수용성 에틸렌성 불포화 단량체 1몰당, 0.000030 몰 내지 0.000080 몰이며,
제 2 공정에서의 후 가교제의 사용량이, 중합에 붙은 수용성 에틸렌성 불포화 단량체 1몰당, 0.00044 몰 내지 0.00076 몰인 것을 특징으로 하는, 흡수성 수지의 제조 방법. - 제 8항에 있어서,
상기 수용성 에틸렌성 불포화 단량체가, (메타)아크릴산 및 그 염, (메타)아크릴아미드, 및 N, N-디메틸아크릴아미드로 이루어진 군에서 선택되는 적어도 1종인, 흡수성 수지의 제조 방법. - 삭제
- 제 8항 또는 제 9항 중 어느 한 항에 있어서,
내부 가교제 및 후 가교제가, 폴리글리시딜 화합물인, 흡수성 수지의 제조 방법.
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PCT/JP2013/070919 WO2014038324A1 (ja) | 2012-09-10 | 2013-08-01 | 吸水性樹脂、吸収体及び吸収性物品 |
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US20150216740A1 (en) | 2015-08-06 |
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