Abstract:
The present invention relates to highly compatible hydroxyphenyltriazine UV-absorbers and to their use in organic polymers, especially for protecting the contents of transparent plastic packages such as pharmaceuticals, cosmetics, personal care products, shampoos and the like, and especially foodstuffs such as beverages, fresh vegetables or meat, from the deleterious effects of ultraviolet radiation. Especially advantageous is the combined use of a UV absorber and an oxygen scavenger. lt has been found that certain highly compatible tris-aryl-s-triazines are especially effective towards this end when incorporated in the containers or films in which such materials are stored.
Abstract:
Methods of initiating oxygen scavenging are disclosed herein that rely on heat triggering. An oxygen scavenging composition that comprises an oxidizable organic compound and a transition metal catalyst is heated to an extent sufficient to initiate oxygen scavenging. Heat triggering can take place during the manufacture of a film or a packaging article from an oxygen scavenging composition, or it can take place after the film or packaging article has been manufactured.
Abstract:
A method for triggering an oxygen scavenging composition for use in packaging an oxygen sensitive article includes the steps of providing an oxygen scavenging composition comprising an oxidizable organic compound and, optionally, a transition metal catalyst, and exposing the composition to a source of pulsed light wherein each pulse has a duration of between 1 microsecond and 1 millisecond, a frequency of between 0.1 to 100 Hertz, and a total intensity of at least 350 mW/cm so that each pulse provides the composition with a dose of light of at least 0.1 J/cm so as to provide a triggered composition. The triggered composition can be applied to an article so as to provide an oxygen scavenging package. An apparatus and packaging system are also disclosed.
Abstract translation:用于触发用于包装氧敏感物品的除氧组合物的方法包括提供包含可氧化有机化合物和任选的过渡金属催化剂的氧清除组合物并将组合物暴露于脉冲光源的步骤,其中 每个脉冲具有1微秒和1毫秒之间的持续时间,0.1至100赫兹之间的频率和至少350mW / cm 2的总强度,使得每个脉冲为组合物提供一定量的光 至少0.1J / cm 2,以提供触发组合物。 可以将触发的组合物施用于制品以提供除氧包装。 还公开了一种装置和包装系统。
Abstract:
Provided are linear low density polyethylene (LLDPE) compositions including a LLDPE polymer and from 100 ppm to 10,000 ppm of a high molecular weight ethoxylate polymer processing aid (PPA) that is substantially free of fluorine-containing compounds. Also provided are polyolefin masterbatches including from 1 wt. % to 50 wt. % of such inventive high molecular weight ethoxylate PPAs and methods of decreasing melt fracture % in linear low density polyethylene films by blending such high molecular weight ethoxylate polymer processing aids and polyolefin masterbatches into cast films and blown films during extrusion processing.
Abstract:
A polypropylene resin composition with excellent impact resistance and rigidity and an article molded therefrom are provided. Since a polypropylene resin article prepared from the polypropylene resin composition has excellent impact resistance and rigidity, it can be advantageously used as an automobile interior or exterior part, a toy for children, or a food storage container.
Abstract:
The invention relates to an additive composition comprising primary anti-oxidants and a secondary anti-oxidant, wherein the primary anti-oxidants are a phenyl phosphite and 3,3′-thiodipropionic acid dioctadecylester, and wherein the secondary anti-oxidant is epoxidized soybean oil. The invention additionally relates a bituminous composition comprising primary anti-oxidants and a secondary anti-oxidant, wherein the primary anti-oxidants are a phenyl phosphite and 3,3′-thiodipropionic acid dioctadecylester; and wherein the secondary anti-oxidant is epoxidized soybean oil. The invention also relates to an asphalt composition comprising the bituminous composition with resistance to short-term and long-term chemical ageing. The invention further relates to the use of an additive composition to reduce short-term and long-term chemical ageing of a bituminous composition.
Abstract:
A formed body made from a resin and having a wall portion, the wall portion containing, as an oxygen-absorbing component, a non-polymeric oxygen-absorbing organic component in an amount of 0.5 to 2.5% by mass, and having a ratio of oxygen permeation rates expressed by the following formula that is suppressed to be not more than 42%: Ratio of oxygen permeation rates=(P/P0)×100 wherein P is an oxygen permeation rate (cc) through the wall portion, and P0 is an oxygen permeation rate (cc) through the wall portion of the same thickness but without containing the oxygen-absorbing component.
Abstract:
The present disclosure relates to oxygen scavenging molecules, compositions comprising the molecules, and articles made from the compositions.
Abstract:
A polyacetal resin composition containing 100 parts by weight of a polyacetal resin; from 0.01 part by weight to 0.5 part by weight (inclusive) of a hindered phenolic antioxidant; from 0.002 part by weight to 0.02 part by weight (inclusive) of an aliphatic carboxylic acid containing 2 or more carboxyl groups and having 4 or more carbon atoms; and from 0.01 part by weight to 0.1 part by weight (inclusive) of a fatty acid calcium salt. The molar ratio of the fatty acid calcium salt to the aliphatic carboxylic acid may be from 0.5 to 5 (inclusive).
Abstract:
The present invention relates to methods for making cross-linked, oxidatively stable, and highly crystalline polymeric materials. The invention also provides methods of treating irradiation-cross-linked antioxidant-containing polymers and materials used therewith.