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公开(公告)号：US4256773A
公开(公告)日：1981-03-17
申请号：US957205
申请日：1978-11-03
CPC分类号： B65D81/24
摘要： A closable container in which is enclosed brominated carbonaceous molecular sieve having micropores within the range of 4 to 6 Angstrom units in diameter and a method for prolonging the shelf-lives of green perishable foods and flowers by the use of said container.
摘要翻译： 一种可封闭的容器，其中具有直径在4至6埃单位范围内的微孔的封闭的溴化碳质分子筛，以及通过使用所述容器延长绿色易腐食品和鲜花的保存期限的方法。
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公开(公告)号：US4824696A
公开(公告)日：1989-04-25
申请号：US793107
申请日：1985-10-30
申请人： Masateru Tokumo , Kinichi Shirakawa , Takatoshi Koyakumaru , Takuji Okaya , Hiroyuki Onishi , Hiroji Kohno
发明人： Masateru Tokumo , Kinichi Shirakawa , Takatoshi Koyakumaru , Takuji Okaya , Hiroyuki Onishi , Hiroji Kohno
CPC分类号： B32B27/04 , C09J129/04
摘要： A process for production of corrugated board using an aqueous adhesive which contains polyvinyl alcohol and clay, or polyvinyl alcohol, clay and water-soluble boron compound, the ratio of clay to polyvinyl alcohol being in the range of 200 to 600 parts by weight based on 100 parts by weight of polyvinyl alcohol, the ratio of water-soluble boron compound being not more than 15 parts by weight based on 100 parts by weight of polyvinyl alcohol, the solid content of the adhesive being 25 to 60% by weight characterized in that(a) a polyvinyl alcohol concentration in the solution excluding solid other than polyvinyl alcohol from adhesive being in the region bounded by the following formulas:Y.gtoreq.-0.0014 X+9.4 (i)Y.ltoreq.-0.0061 X+26.3 (II)200.ltoreq.X.ltoreq.3500 (iii) wherein Y is defined by the following formula: ##EQU1## P=Polyvinyl alcohol content in the adhesive (by weight) W=Water content in the adhesive (by weight) and X is degree of polymerization of polyvinyl alcohol,(b) the viscosity of the adhesive measured by a Brookfield viscometer being from 200 to 6000 centipoises at 85.degree. C., and the rate of increase of the viscosity of the adhesive being in the range of 1.5 to 8 times when the temperature of adhesive is dropped from 85.degree. to 30.degree. C.,(c) the adhesive, of which temperature is 60.degree. to 95.degree. C., being applied onto the flute tips of corrugated medium to manufacture corrugated board,and an aqueous adhesive therefor. The process for production of a corrugated board has excellent effect on heat energy saving characterized in that said corrugated board can be manufactured at high speed without heating after application of the water-base adhesive at a temperature of 60.degree.-95.degree. C., and the adhesive is easy to handle and has improved adhesion property.
摘要翻译： 使用含有聚乙烯醇和粘土或聚乙烯醇，粘土和水溶性硼化合物的水性粘合剂生产瓦楞纸板的方法，粘土与聚乙烯醇的比例在200至600重量份的范围内，基于 100重量份的聚乙烯醇，基于100重量份的聚乙烯醇，水溶性硼化合物的比例不超过15重量份，粘合剂的固体含量为25〜60重量％，其特征在于， （a）不包括聚乙烯醇以外的固体的溶液中的聚乙烯醇浓度在由下式限定的范围内：Y> = = 0.0014 X + 9.4（i）Y <= 0.0061 X + 26.3（ II）200
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公开(公告)号：US4906679A
公开(公告)日：1990-03-06
申请号：US277557
申请日：1988-11-29
申请人： Masateru Tokuno , Kinichi Shirakawa , Takatoshi Koyakumaru , Takuji Okaya , Hiroji Kohno , Hiroyuki Onishi
发明人： Masateru Tokuno , Kinichi Shirakawa , Takatoshi Koyakumaru , Takuji Okaya , Hiroji Kohno , Hiroyuki Onishi
CPC分类号： B32B27/04 , C09J129/04
摘要： A process for production of corrugated board using an aqueous adhesive which contains polyvinyl alcohol and clay, or polyvinyl alcohol, clay and water-soluble boron compound, the ratio of clay to polyvinyl alcohol being in the range of 200 to 600 parts by weight based on 100 parts by weight of polyvinyl alcohol, the ratio of water-soluble boron compound being not more than 15 parts by weight based on 100 parts by weight of polyvinyl alcohol, the solid content of the adhesive being 25 to 60% by weight characterized in that(a) a polyvinyl alcohol concentration in the solution excluding solid other than polyvinyl alcohol from adhesive being in the region bounded by the following formulas:Y.gtoreq.-0.0014 X+9.4 (i)Y.ltoreq.-0.0061 X+26.3 (ii)200.ltoreq.X.ltoreq.3500 (iii) wherein Y is defined by the following formula: ##EQU1## and X is degree of polymerization of polyvinyl alcohol, (b) the viscosity of the adhesive measured by a Brookfield viscometer being from 200 to 6000 centipoises at 85.degree. C., and the rate of increase of the viscosity of the adhesive being in the range of 1.5 to 8 times when the temperature of adhesive is dropped from 85.degree. to 30.degree. C.,(c) the adhesive, of which temperature is 60.degree. to 95.degree. C., being applied onto the flute tips of corrugated medium to manufacture corrugated board,and an aqueous adhesive therefor. The process for production of a corrugated board has excellent effect on heat energy saving characterized in that said corrugated board can be manufactured at high speed without heating after application of the water-base adhesive at a temperature of 60.degree.-95.degree. C., and the adhesive is easy to handle and has improved adhesion property.
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