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1.
公开(公告)号:US5629395A
公开(公告)日:1997-05-13
申请号:US621513
申请日:1996-03-25
IPC分类号: C08F2/00 , C08F2/06 , C08F2/38 , C08F6/06 , C08F6/10 , C08F8/00 , C08F220/04 , C08F220/06 , C09K3/00
CPC分类号: C08F8/00
摘要: There is provided an industrially advantageous process for producing a crosslinked polymer containing carboxyl groups which comprises (a) polymerizing an .alpha.,.beta.-unsaturated carboxylic acid and a crosslinking agent copolymerizable with it in the presence of a radical polymerization catalyst in an inert solvent, (b) heating the polymerized product in the presence of a radical scavenger and (c) removing the solvent. The polymer dissolved in water has high viscosity and excellent flowing properties.
摘要翻译: 提供了一种工业上有利的生产含羧基的交联聚合物的方法,其包括(a)在自由基聚合催化剂存在下在惰性溶剂中聚合α,β-不饱和羧酸和可与其共聚的交联剂( b)在自由基清除剂存在下加热聚合产物,和(c)除去溶剂。 溶于水的聚合物具有高粘度和优异的流动性能。
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公开(公告)号:US6084032A
公开(公告)日:2000-07-04
申请号:US983442
申请日:1998-04-22
IPC分类号: C08L33/00 , C08L33/02 , C08L39/00 , C08L39/06 , C08L71/00 , C08L71/02 , C09K3/00 , C08L39/04 , C08F8/30 , C08F30/04 , C08F36/00
摘要: A polymer composition containing carboxyl groups which has excellent water solubility, thickening properties and flow characteristics. The composition comprises (A) a crosslinked polymer comprising (a) an .alpha.,.beta.-unsaturated carboxylic acid and (b) a compound having at least two ethylenically unsaturated groups, and (B) at least one polymer comprising N-vinylpyrrolidone as essential monomer.
摘要翻译: PCT No.PCT / JP96 / 01930 Sec。 371日期:1998年4月22日 102(e)1998年4月22日PCT PCT 1996年7月11日PCT公布。 出版物WO97 / 03128 日期1997年1月30日具有优异的水溶性,增稠性和流动特性的含羧基的聚合物组合物。 该组合物包含(A)包含(a)α,β-不饱和羧酸和(b)具有至少两个烯属不饱和基团的化合物的交联聚合物,和(B)至少一种包含N-乙烯基吡咯烷酮作为必需单体的聚合物 。
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公开(公告)号:US06599979B2
公开(公告)日:2003-07-29
申请号:US09440274
申请日:1999-11-15
IPC分类号: C08L7700
CPC分类号: C09K3/00 , C08L33/02 , C08L39/06 , C08L71/02 , C08L2666/14 , C08L2666/04
摘要: A polymer composition containing carboxyl group which is excellent in water solubility, thickening properties and flow characteristics. This composition comprises (A) a cross-linked polymer comprising (a) an &agr;,&bgr;-unsaturated carboxylic acid and (b) a compound having at least two ethylenically unsaturated groups, and (B) at least one polymer selected from among polymers comprising vinylpyrrolidone as an essential monomer and polyethylene oxide.
摘要翻译: 含有水溶性,增稠性,流动性优异的含有羧基的聚合物组合物。 该组合物包含(A)包含(a)α,β-不饱和羧酸和(b)具有至少两个烯键式不饱和基团的化合物的交联聚合物,和(B)至少一种选自聚合物的聚合物,包括 乙烯基吡咯烷酮作为必需单体和聚环氧乙烷。
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