公开(公告)号：US5444128A

公开(公告)日：1995-08-22

申请号：US120538

申请日：1993-09-14

申请人： Isamu Ichizuka ,  Shuitsu Takahashi ,  Kouzi Hara ,  Hiroshi Waki ,  Shinji Kobe ,  Tadayuki Sakurada ,  Yoshitaka Okouchi ,  Ken Ohkubo ,  Hiroshi Shimizu

发明人： Isamu Ichizuka ,  Shuitsu Takahashi ,  Kouzi Hara ,  Hiroshi Waki ,  Shinji Kobe ,  Tadayuki Sakurada ,  Yoshitaka Okouchi ,  Ken Ohkubo ,  Hiroshi Shimizu

IPC分类号： C08J5/18 ,  C08L27/06 ,  C08L75/00 ,  C08L101/00 ,  C09K3/10 ,  E02B3/16 ,  C08K5/10 ,  C08L75/08

CPC分类号： C09K3/1021 ,  C09K3/10 ,  C09K2003/104 ,  C09K2003/1043 ,  C09K2200/0635

摘要： A water-sealing sheet comprising a water-swelling resin obtained by kneading together 10 to 97% by weight of a non-water-swelling thermoplastic resin, preferably vinyl chloride resin, containing 80 to 200 parts by weight of a plasticizer based on 100 parts by weight of the non-waterswelling thermoplastic resin, and 3 to 90% by weight of a water-swelling urethane resin. The urethane resin is a prepolymer having isocyanate groups in which the content of terminal NCO groups amounts to 1 to 12%, preferably 2 to 7%, obtained by the reaction of polyisocyanate with at least one polyether polyol of the formulaR[(OR.sub.1)n OH]pwherein R is a polyhydric alcohol residue;(OR.sub.1)n is a polyoxyalkylene chain comprising oxyalkylene groups each having an oxyethylene group and an alkylene group carrying three or four carbon atoms, and wherein the content of the oxyethylene groups is 20 to 100% of the total molecular weight;n is a number corresponding to the degree of polymerization of the oxyalkylene groups and giving a hydroxyl group equivalent of 200 to 2500; andp is 2 to 8, preferably 2 to 4.

摘要翻译： 一种水封片，其包含通过将10至97重量％的非水溶胀热塑性树脂（优选氯乙烯树脂）混合在一起而获得的水溶性树脂，其包含基于100份的80至200重量份的增塑剂 的非水溶性热塑性树脂和3〜90重量％的水溶胀性聚氨酯树脂。 聚氨酯树脂是具有异氰酸酯基团的预聚物，其中末端NCO基团的含量为通过多异氰酸酯与至少一种式R [（OR 1））的聚醚多元醇反应获得的1至12％，优选2至7％ n OH] p其中R是多元醇残基; （OR1）n为包含氧亚乙基和含有3或4个碳原子的亚烷基的氧化烯基的聚氧化烯链，其中氧乙烯基的含量为总分子量的20〜100％ n是与氧化烯基的聚合度对应的数字，赋予羟基当量200〜2500的数。 p为2〜8，优选为2〜4。

公开(公告)号：US5476718A

公开(公告)日：1995-12-19

申请号：US386082

申请日：1995-02-09

申请人： Isamu Ichizuka ,  Shuitsu Takahashi ,  Kouzi Hara ,  Hiroshi Waki ,  Shinji Kobe ,  Tadayuki Sakurada ,  Yoshitaka Okouchi ,  Ken Ohkubo ,  Hiroshi Shimizu

发明人： Isamu Ichizuka ,  Shuitsu Takahashi ,  Kouzi Hara ,  Hiroshi Waki ,  Shinji Kobe ,  Tadayuki Sakurada ,  Yoshitaka Okouchi ,  Ken Ohkubo ,  Hiroshi Shimizu

IPC分类号： B29C47/00 ,  B29K101/00 ,  C08L101/00 ,  C09K3/10 ,  E02B3/16 ,  B32B27/30

CPC分类号： C09K3/1021 ,  C09K3/10 ,  C09K2003/104 ,  C09K2003/1043 ,  C09K2200/062 ,  C09K2200/0622 ,  C09K2200/0635 ,  Y10T428/3158

摘要： A compound water-sealing sealant comprising a non-water-swelling thermoplastic resin (A), preferably a vinyl chloride resin, and a water-swelling resin (C) obtained by kneading together 10 to 97% by weight of the non-water-swelling thermoplastic resin (A) and 3 to 90% by weight of a water-swelling material (B). The compound water-sealing sealant is molded by the conjoint extrusion molding of the non-water-swelling thermoplastic resin (A) and the water-swelling resin (C). The water-swelling material (B) is a water-swelling urethane resin which is a prepolymer having isocyanate groups in which the content of terminal NCO groups amounts to 1 to 12%, preferably 2 to 7%, obtained by the reaction of polyisocyanate with at least one polyether polyol of the formulaR[(OR.sub.1)n OH]pwherein R is a polyhydric alcohol residue;(OR.sub.1)n is a polyoxyalkylene chain comprising oxyalkylene groups each having an oxyethylene group and an alkylene group carrying three or four carbon atoms, and wherein the content of the oxyethylene groups is 20 to 100% of the total molecular weight;n is a number corresponding to the degree of polymerization of the oxyalkylene groups and giving a hydroxyl group equivalent of 200 to 2500; andp is 2 to 8, preferably 2 to 4.

摘要翻译： 将非水溶性热塑性树脂（A），优选氯乙烯树脂和水溶胀性树脂（C）混合10〜97重量％的非水溶性树脂（C） 膨胀热塑性树脂（A）和3〜90重量％的水溶胀材料（B）。 通过非水膨胀性热塑性树脂（A）和水溶胀性树脂（C）的联合挤出成型，来形成复合密封剂。 水溶胀材料（B）是具有异氰酸酯基的预聚物的水溶胀性聚氨酯树脂，其中末端NCO基团的含量为多异氰酸酯与多异氰酸酯反应得到的1〜12％，优选为2〜7％ 至少一种式R [（OR 1）n OH] p的聚醚多元醇，其中R是多元醇残基; （OR1）n为包含氧亚乙基和含有3或4个碳原子的亚烷基的氧化烯基的聚氧化烯链，其中氧乙烯基的含量为总分子量的20〜100％ n是与氧化烯基的聚合度对应的数字，赋予羟基当量200〜2500的数。 p为2〜8，优选为2〜4。