首页> 外国专利> Moisture-storing plastic padding for upholstery etc. - by prepn. of hydrophilic polymer gel in liq. medium or swelling a compact hydrophilic polymer, and removing the liq.

Moisture-storing plastic padding for upholstery etc. - by prepn. of hydrophilic polymer gel in liq. medium or swelling a compact hydrophilic polymer, and removing the liq.

机译:防潮塑料垫,用于室内装饰等-by prepn。液体中的亲水性聚合物凝胶的制备。中等或溶胀致密的亲水性聚合物,然后除去液体。

摘要

Prodn. of moisture-storing plastic padding (I) by (a1) prepn. of a hydrophilic polymer gel (IIA) in a liq. medium, or (a2) swelling a compact hydrophilic polymer (IIB) with a liq. medium to form a gel, followed by (b) removal of the liq.. Also claimed is material (I) obtd. by the above process. Pref. (IIB) is in the form of powder, granules, extrudate, strip or film, and is converted into a gel with superheated steam and then oven-dried (pref. at normal or reduced pressure and at a temp. between 100 deg C and the decompsn. pt. of IIB), or a liq. medium is used and then removed by freeze drying; (IIA/B) is a homo- or co-polymer, pref. a linear polymer, a short- or long-chain branched polymer, or a crosslinked polymer, esp. a covalently or physically crosslinked polymer; (IIA/B) contains anionic and/or nonionic hydrophilic gps. (X), pref. with 0-70 mol.% anionic gps. (AX) w.r.t. monomer units, esp. COO-, COOH, OH, CONH2 or SO3- gps.; degree of crosslinking is 0.5-20 mol.% w.r.t. monomer units; (II) is based on (meth)acrylic acid and/or metal salt, ester or amide thereof, and/or glucose; pref. (II) is polyacrylic acid or a copolymer of acrylic acid and 1-63 mol.% other comonomer, esp. with the acid gps. in partly dissociated form; (II) is a crosslinked polymer prepd. by direct reaction of monomer(s) and crosslinker(s) or from precursor polymer(s) (III) by radiation-induced crosslinking or reaction with crosslinkers; (III) is a linear polymer, a short- or long-chain branched polymer, or a graft copolymer or block copolymer. USE/ADVANTAGE - (I) is useful in upholstery, mattresses and incontinence prods. (claimed). The invention provides a moisture- storing plastic material with a large surface area and low apparent density. (0/0)
机译:产品(a1)制备保水塑料垫(I)的方法。液体中的亲水性聚合物凝胶(IIA)的含量。介质;或(a2)用液体使膨胀的亲水性聚合物(IIB)溶胀。介质形成凝胶,然后(b)除去液体。还要求保护的是材料(I)。通过以上过程。首选(IIB)为粉末,颗粒,挤出物,条状或薄膜形式,并在过热蒸汽作用下转变为凝胶,然后进行烤箱干燥(优选在常压或减压下于100摄氏度至200摄氏度之间的温度) IIB的解压缩点)或液体使用培养基,然后冷冻干燥除去; (IIA / B)是均聚物或共聚物。特别是线性聚合物,短链或长链支化聚合物或交联聚合物。共价或物理交联的聚合物; (IIA / B)包含阴离子和/或非离子亲水性gps。 (X),首选具有0-70摩尔%的阴离子gps。 (AX)w.r.t.单体单元,特别是COO-,COOH,OH,CONH2或SO3- gps。交联度为0.5-20摩尔%w.r.t。单体单元(II)基于(甲基)丙烯酸和/或其金属盐,其酯或酰胺和/或葡萄糖;偏好(II)是聚丙烯酸或丙烯酸与1-63摩尔%的其他共聚单体,特别是丙烯酸的共聚物。与酸性gps。部分分离的形式(II)是交联的聚合物制备物。通过单体与交联剂的直接反应或通过辐射诱导的交联或与交联剂的反应从前体聚合物(III)进行的直接反应; (III)是线性聚合物,短链或长链支化聚合物或接枝共聚物或嵌段共聚物。使用/优点-(I)可用于室内装潢,床垫和失禁产品。 (声称)。本发明提供了具有大的表面积和低的表观密度的储水塑料材料。 (0/0)

著录项

相似文献

  • 专利
  • 外文文献
  • 中文文献
获取专利

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号