摘要:
A structure comprising one or more layers of a polymer (A) comprising: the units (A1) and the units (A2) wherein the A2/(A1+A2) molar ratio is between 0 and 30%, is suitable as a barrier against oxygen permeation under high relative humidity. The structure is, thus, useful as packaging and as hollow bodies, such as pipes, bottles and containers.
摘要:
The objective of the present invention lies in providing a resin composition which enables water vapor permeability to be controlled over a broad range while maintaining a high gas permeability, together with molded articles or packaging materials comprising said composition, in particular a packaging material for foodstuffs like fruit and vegetables. A thermoplastic resin composition which is characterized in that a polymer (A) containing polyether chains as structural units, polyethylene (B) of density as specified in JIS K6760 of less than 0.91 g/cm3 and a compatibilizing agent (C) are blended together in proportions by weight of A/B/C=99.5 to 0.5/0.5 to 99.5/0 to 30 (where A+B+C=100); and molded articles comprising said composition, in particular a packaging material for vegetables and fruit cultivation or foodstuffs storage.
摘要翻译:本发明的目的在于提供一种能够在保持高透气性的情况下在宽范围内控制水蒸气透过性的树脂组合物,以及包含所述组合物的成型制品或包装材料,特别是用于食品的包装材料 水果和蔬菜。 一种热塑性树脂组合物,其特征在于,含有作为结构单元的聚醚链的聚合物(A),JIS K6760规定的密度的聚乙烯(B)小于0.91g / cm 3,相容剂(C) A / B / C = 99.5〜0.5 / 0.5〜99.5 / 0〜30(A + B + C = 100)的重量比。 以及包含所述组合物的模塑制品,特别是用于蔬菜和水果栽培或食品储存的包装材料。
摘要:
A structure comprising at least one layer of a polymer (A) comprising: the units (A1) and the units (A2) wherein the A2/(A1+A2) molar ratio is between 0 and 30% is a barrier against oxygen permeation under high relative humidity, making the structure useful for packaging and hollow bodies, such as pipes, bottles and containers.
摘要:
A gas-impermeable elastic membrane including a co-polymeric gas-impermeable film including OH groups, positioned between two layers of a co-polymer containing blocks of polyamides and of polyesters, with a rubber coating on at least one of the two layers, as well as a method of manufacturing the membrane.
摘要:
The invention relates to a breathing film constituting a mixture including:(a) at least one thermoplastic elastomer which has polyether blocks;(b) at least one copolymer including ethylene and at least one alkyl (meth)acrylate.They can be used in combination with fabrics or with nonwovens.
摘要:
The invention relates to a breathing film constituting a mixture including:(a) at least one thermoplastic elastomer which has polyether blocks; (b) at least one copolymer including ethylene and at least one alkyl (meth)acrylate. They can be used in combination with fabrics or with nonwovens.
摘要:
Beer is prepared by a process wherein groups of batches of wort are turned serially at temperatures increasing from 10* to 14.5*C into a cylindrical, vertically disposed vat having a conical bottom. Convection currents are instituted to homogenize the contents of the vat and fermentation is carried out until a beer of the desired degree of fermentation is formed. The resultant beer is mellowed by a warm keep phase, cooled and subjected to a cold keep phase.
摘要:
The switch comprises a body carrying fixed electric contacts and a movable member rotatably mounted in the body. The body has curved ribs of identical radius which extend around a barrel and define between them a plurality of free spaces containing electrically conductive balls. At least two of the spaces are partly occupied by the fixed contacts. An electrically conductive ring is interposed between the balls and elastically yieldable members carried by the base of the movable element. The conductive ring is put in contact with the fixed contacts through the balls, which constitute moving contacts, and closes the switch electrically when the movable element is rotated relative to the body. The edges of the ribs constitute abutments for the balls.