Abstract:
The present invention relates to polyamide-polyester barrier blends that possess improved gas barrier, clarity, and organoleptic properties, as well as containers (e.g., bottles), sheets, and films formed from such barrier resins. The invention further relates to polyamide-compatible polyethylene terephthalate resins that are useful in forming these improved polyamide-polyester polymer blends. The invention still further relates to cost-effective recycling of articles formed from polyamide-polyester polymer blends.
Abstract:
Thermoplastic compositions comprising polyacrylonitriles that contain greater than 90% acrylonitrile as monomer, or copolymers of such polyacrylonitriles with an olefinic unsaturated co-monomer, can be formed by the use of certain compatibilizers and/or thermal stabilizers. Other thermoplastic compositions comprising the high nitrile polyacrylonitriles can be obtained by melt blending the polyacrylonitriles with certain aromatic engineering thermoplastic polymers in the presence of compatibilizers and thermal stabilizers. All of the foregoing high nitrile compositions have been found to possess good optical and gas barrier properties, and good stress crack resistance.
Abstract:
A transparent article includes a continuous polyester matrix having at least one incompatible filler dispersed therein. The incompatible filler provides domains in the polyester matrix, each domain having a particular dimension, thus providing a range of dimensions for the domains in the article. To create haze, the dimensions are within the range of from about 380 nm to about 720 nm. Once the range of dimensions is determined, a light absorbent composition can be found which absorbs light at a range of wavelengths that at least substantially covers the range of dimensions of the domains. In doing so, it has been found that the haze of the article can be substantially masked. Method for producing the article and for masking the haze are also provided.
Abstract:
A packing container having oxygen absorbing layers comprising a base material resin component (component A) and an oxygen absorbing functional component (component B), the oxygen absorbing layers having an islands-in-the-sea structure in which the base material resin component (component A) is forming a sea portion and the oxygen absorbing functional component (component B) is forming island portions, wherein the ratio (N/M). of the whole surface area (N cm2) of the island portions of the oxygen absorbing functional component (component B) in the oxygen absorbing layers to the volume (M cm3) of the packing container is not smaller than 20 (cm−1). The packing container exhibits excellent gas barrier property and oxygen absorbing property from the beginning of filling the content and continuously works to lower the initial concentration of oxygen in the content from the beginning of filling.
Abstract translation:具有氧吸收层的包装容器包括基材树脂组分(组分A)和氧吸收功能组分(组分B),氧吸收层具有海岛结构,其中基材树脂组分 组分A)形成海水部分,氧吸收功能组分(组分B)形成岛部分,其中比例(N / M)。 氧吸收层中氧吸收功能组分(组分B)的岛部分的整个表面积(N cm 2)的体积(M cm 3) )不小于20(cm -1)以上。 包装容器从填充内容开始时显示出优异的阻气性和氧吸收性,并且连续地起作用以从填充开始降低含量中的氧初始浓度。
Abstract:
Provided are a gas-barrier film which is a laminate comprising a substrate layer comprising a thermoplastic resin film and a gas-barrier layer comprising a hydrolysate of a silicon alkoxide, a stratified silicate and a polyvinyl alcohol base resin, wherein a radius (Rg) of gyration of a scattering matter which is measured by light scattering in the gas-barrier layer described above is 2.4 μm or less, and the silicon alkoxide and/or the hydrolysate thereof are present between the layers of the stratified silicate present in the above gas-barrier layer. The above film shows an excellent gas-barrier property even under such a high humidity as exceeding 90% RH.
Abstract:
A composition having gas-barrier properties, which can produce a resin film having gas-barrier properties under high humidity conditions and high abrasion resistance, and a coating film formed by thermally treating a film-like product of the composition having gas-barrier properties and a method for producing the same are provided. A composition having gas-barrier properties, comprising a water-soluble polymer having hydroxyl group (A), a water-soluble polymer having carboxyl group (B), a metal alkoxide and/or a hydrolysis condensate thereof (C), and an esterification catalyst (E), such that the weight ratio of the component (A) and the component (B) is 97/3 to 3/97, and the component (C) is contained in an amount ranging from 1 part by weight to 400 parts by weight, while the component (E) is contained in an amount ranging from 0.01 part by weight to 100 parts by weight, relative to 100 parts by weight of a mixture of the component (A) and the component (B); and a coating film obtained by thermally treating a film-like product of the composition having gas-barrier properties.
Abstract:
A curing composition contains a polymer having two or more thiol groups per molecule, a compound having two or more isocyanate groups per molecule, and carbon black, and further contains a filler of which main ingredient is silicic acid or a silicate, or contains an organic filler of which main ingredient is pulverized coal. The curing composition has satisfactory storage stability of base compound and satisfactory curability event after storage of the base compound and, furthermore, gives a cured compound having sufficient strength at break, hardness, and gas-barrier properties. The curing composition is hence suitable for use as a sealant for insulating glass manufacture, vehicle window frames, etc.
Abstract:
An article having barrier properties is provided. The article includes a nanocomposite having barrier properties dispersed in a polyolefin resin to have superior mechanical strength and form a strong barrier to oxygen, organic solvent, and moisture.
Abstract:
The present invention relates to nanocomposite materials based on a copolymer of at least two monomers selected from the group consisting of butadiene, isoprene and styrene and a clay mineral dispersed therein, and a process for preparing them. By using an organolithium as the initiator, an organic hydrocarbon solvent as the solvent and a polar additive as the microstructure modifier by means of a classical anionic solution polymerization process, at least two monomers selected from the group consisting of butadiene, isoprene and styrene are in-situ intercalation polymerized in the presence of an organoclay, thereby obtaining a delaminated nanocomposite material which is excellent in mechanical properties, heat resistance, barrier property, chemical resistance and is well balanced in its comprehensive properties.
Abstract:
A resin composition obtained by blending a thermoplastic resin that can be melt-extruded at a solubility parameter of not smaller than 9.5 with an organic oxidizing component and with a transition metal catalyst, the organic oxidizing component being a polyene having a functional group on a side chain or at a terminal thereof. The resin composition has excellent moldability and gas shut-off property. A multi-layer container having an oxygen-absorbing layer of this resin composition exhibits excellent gas-barrier property and is capable of favorably preserving the content.