B65D 81/26 - Adaptations for preventing deterioration or decay of contentsApplications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, fluids, e.g. exuded by contentsApplications of corrosion inhibitors or desiccators
The specification claims the unexpected result that copper containing compounds can be used to impart thermal stability to a polyester polyamide mixture, when the mixture contains an ionic compatibilizer such as sulfoisophthalic acid.
C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
C08L 77/00 - Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chainCompositions of derivatives of such polymers
An article comprises a polyester polymer phase wherein the polyester polymer phase is at least 80% by weight of the composition of the article and the polyester polymer phase further comprises a sulfonated polyester polymer, at least 1% by weight of the article of a polyamide polymer, and a stabilizer. The stabilizer is present at a level of at least 100 parts stablilizer per million parts article, wherein at least 2% by weight of the total amount of stabilizer is present in the polyester polymer phase. The article may be e.g. a pellet, a fiber, a strand, a sheet, a film, a perform, a bottle, a ground flake or cube.
C08L 77/00 - Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chainCompositions of derivatives of such polymers
4.
PHOSPHITE STABILIZERS FOR IONOMERIC POLYESTER COMPOUNDS
The use of oxidizable phosphorus stabilizers, such as phosphites, to reduce the color formation of the ion om eric polyester compositions is disclosed.
This specification discloses how to make a compartmentalized pellet from a reactor by not reducing the temperature of the reacted product to below its glass transition temperature.
A method is disclosed for manufacturing one or more oxygen scavenging particles, wherein the particle(s) comprises an oxidizable metal particle, such as elemental iron; an acidifying electrolyte such as sodium or potassium bisulfate and optionally a water hydro lysable Lewis acid, such as aluminum chloride. The method comprises the step of coating the oxidizable particle with a first compound and then reacting the first compound with a second compound to form a third compound, wherein the third compound promotes the reaction of the oxidizable particle with oxygen.
B01J 20/04 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium
This invention discloses a process for producing a polyester resin having a low acetaldehyde generation rate comprised of the steps of polycondensing the polyester resin in the presence of tin and antimony; wherein the tin is present within the range of 50 to 110 ppm of the polyester resin and the antimony is present from 105 ppm to 265 ppm of the polyester resin, and solid phase polymerizing the polyester resin for sufficient time so as to increase the intrinsic viscosity of the polyester resin by at least 0.15 dl/g.
A polymer composition, stretched and unstretched articles and processes to make stretched and unstretched articles from that composition are set forth wherein the composition comprises a blend of a polyamide wherein the amino to carboxyl end group ratio of the polyamide polymer is less than 1.0 when the relative viscosity of the polyamide polymer is less than 2.0, and less than 0.30 when the relative viscosity is in the range of 2.0 to 2.3 and less than 0.20 when the relative viscosity is greater than 2.3, a crystallizable polyester and an interfacial tension reducing agent.
This specification discloses polyamides which r emain stable and do not form gels when the polyamides are exposed to solid phase polymerization conditions associated with the polyester.
A polymer composition and wall of a container made from such composition is set forth comprising a polyamide and polyester and a sufficient amount of an interfacial tension reducing agent such that the polyamide domains stretch disproportionately to the amount of stretch experienced by the polyester both with and without a cobalt salt.
C08L 67/00 - Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chainCompositions of derivatives of such polymers
Compositions of polyester and polyamide blends with vanadium, manganese, or chromium organo compounds are disclosed. These blends have utility in that the metal compound significantly reduces the haze of the nylon in the polyester, and in the case of vanadium, the metal-polyester composition scavenges oxygen.
Compositions of polyester with organo iron compounds are disclosed. These blends have utility in that the organo iron compound makes the polyester in the composition an oxygen scavenger.
C08G 63/00 - Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
C08K 3/00 - Use of inorganic substances as compounding ingredients
C08L 67/00 - Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chainCompositions of derivatives of such polymers
Disclosed is a polyester composition of a polyester, an oxygen sensitive compound, such as a polyamide and a promoter which causes the oxygen sensitive compound to become reactive with oxygen and the promoter is strategically placed into the polyester or present at less than critical moisture activation ratio of the amount of oxygen sensitive compound to the amount of promoter, whereby there is more oxygen reactivity when the composition is wet, than when the composition is dry.
Disclosed is a process and article to simultaneously thermally treat at least two thermoplastics when one of the thermoplastics is an oxygen inert material and the other is an oxygen sensitive material, and the article also contains a promoter that converts the oxygen sensitive material to an oxygen reactive material when brought in contact with the oxygen sensitive material. The process utilizes the compartmentalized pellet, also known as a zoned pellet, construction wherein the major amount of each component is located within individual compartments or zones of the pellet such that the reactions with compounds in the atmosphere such as oxygen are less than the reaction if the thermoplastics were homogeneously dispersed in the pellet. This is of particular use to oxygen scavenging systems .
An efficient oxygen scavenging composition for use in film forming polymers is disclosed wherein the oxygen scavenging composition comprises an oxidizable metal particle, such as elemental iron; a water hydrolysable Lewis acid, such as aluminum chloride; and an acidifying electrolyte such as sodium or potassium bisulfate.
B65D 81/26 - Adaptations for preventing deterioration or decay of contentsApplications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, fluids, e.g. exuded by contentsApplications of corrosion inhibitors or desiccators
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