Oxygen-scavenging resin compositions having low haze

A resin composition provides good optical properties when stretched and efficient oxygen-scavenging, the resin composition comprising a film-forming polyester and an effective amount of oxygen-scavenging particles, wherein the particles have a particle size distribution such that particles of less than about 25 microns in size do not exceed a concentration defined by a formula that includes the apparent density of the particles. Another resin composition comprises a film-forming polyester and from about 50 to about 2500 parts by weight of iron per million by weight of the resin, wherein the amount of iron particles having a size of less than about 20 microns does not exceed about 800 parts per million by weight of the resin. A method is also provided for incorporating high levels of oxygen-scavenging particles into a film-forming polyester resin composition with low haze when stretched.

Oxygen-scavenging resin compositions having low haze

A resin composition provides good optical properties when stretched and efficient oxygen-scavenging, the resin composition comprising a film-forming polyester and an effective amount of oxygen-scavenging particles, wherein the particles have a particle size distribution such that particles of less than about 25 microns in size do not exceed a concentration defined by a formula that includes the apparent density of the particles. Another resin composition comprises a film-forming polyester and from about 50 to about 2500 parts by weight of iron per million by weight of the resin, wherein the amount of iron particles having a size of less than about 20 microns does not exceed about 800 parts per million by weight of the resin. A method is also provided for incorporating high levels of oxygen-scavenging particles into a film-forming polyester resin composition with low haze when stretched.

Oxygen-scavenging resin compositions having low haze

A resin composition provides good optical properties when stretched and efficient oxygen-scavenging, the resin composition comprising a film-forming polyester and an effective amount of oxygen-scavenging particles, wherein the particles have a particle size distribution such that particles of less than about 25 microns in size do not exceed a concentration defined by a formula that includes the apparent density of the particles. Another resin composition comprises a film-forming polyester and from about 50 to about 2500 parts by weight of iron per million by weight of the resin, wherein the amount of iron particles having a size of less than about 20 microns does not exceed about 800 parts per million by weight of the resin. A method is also provided for incorporating high levels of oxygen-scavenging particles into a film-forming polyester resin composition with low haze when stretched.

Compartmentalized resin pellets

Article comprising light absorbent composition to mask visual haze and related method

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.

Article Comprising Light Absorbent Composition to Mask Visual Haze and Related Methods

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.

Article comprising light absorbent composition to mask visual haze and related methods

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.

Oxygen scavenging polyester blends having improved aesthetic characteristics

Disclosed herein is a preform having a preform wall. The preform wall preferably comprises a composition comprising at least one polyester component, a transition metal catalyst, and a vegetable oil. The vegetable oil may comprise at least one molecule having a double allylic structure. The at least one polyester component may comprise at least one acid unit and at least one diol unit. The concentration of double allylic structures of the vegetable oil in the composition may be greater than 5.0 meq/kg of all of the polyester components. The preform has improved aesthetic characteristics.

Compartmentalized resin pellets and process for thermally treating said pellets

Sectional plastic granules and method for heat treating the plastic granules

Polyamide-polydiene blends with improved oxygen reactivity

This application discloses the use of polyamide-polydiene blend to improve the oxygen reactivity in the presence of ionic polyester compatibilizers.

Article Comprising Light Absorbent Composition to Mask Visual Haze and Related Methods

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.

Article comprising light absorbent composition to mask visual haze and related methods

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.

Polar soluble oxygen scavenging compositions

Method for conditioning polyester and controlling expansion of polyester during thermoforming

A method for thermoforming a cellular thermoplastic resin comprises exposing a cellular thermoplastic resin to a controlled humidity environment to obtain a conditioned cellular thermoplastic resin, molding the conditioned cellular thermoplastic resin to form a desired shape, and heating the conditioned cellular thermoplastic resin to cause the crystalline content of the thermoplastic resin to be at least about 20-30 percent. A method for conditioning a cellular thermoplastic resin comprises exposing a cellular thermoplastic resin to a controlled humidity environment to obtain a conditioned cellular thermoplastic resin.

Polyester-polyamide combinations that maintain good color under heat treatment

Artículo que comprende una fase de polímero de poliéster en donde la fase de polímero de poliéster es al menos el 80% en peso de la composición del artículo y la fase de polímero de poliéster comprende además un polímero de poliéster sulfonado; al menos el 1% en peso del artículo de un polímero de poliamida, y un estabilizador; en donde el estabilizador está presente a un nivel de al menos 100 partes de estabilizador por millón de partes del artículo, y en donde al menos el 2% en peso de la cantidad total del estabilizador está presente en la fase de polímero de poliéster, y dicho artículo es una pella compartimentada de diseño núcleo-envolvente, comprendiendo la envolvente la fase de polímero de poliéster y el estabilizador y comprendiendo el núcleo la fase de polímero de poliéster, el estabilizador y la poliamida. An article comprising 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; wherein the stabilizer is present at a level of at least 100 parts of the stabilizer per million parts of the article, and where at least 2% by weight of the total amount of the stabilizer is present in the polyester polymer phase, and Said article is a compartmentalized core-shell design film, the envelope comprising the polyester polymer phase and the stabilizer and the core comprising the polyester polymer phase, the stabilizer and the polyamide.

Article containing a light-absorbing composition to mask optical haze and corresponding methods

Phosphite stabilizers for ionomeric polyester compounds

The use of oxidizable phosphorus stabilizers, such as phosphites, to reduce the color formation of the ionomeric polyester compositions is disclosed.

Copper containing polyester-polyamide compositions

Compartmentalized pellet for improved contaminant removal

This invention is to an improved method for cleaning contaminated polymer when that polymer is to be blended with clean material. The method involves combining the contaminated material and the clean material in a compartmentalized pellet wherein the contaminated material is placed in the outermost compartment, the clean material is placed in an inner compartment and then subjecting the pellet to an extraction process.

Composition for maintaining good color when thermally treating polyester-polyamide blends

A specially structured article is described which allows products made from the article to undergo a second heating without a dramatic color shift. This permits more recycled products from the material used to make the article.

Article comprising light absorbent composition to mask visual haze and related method

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.

Composition for maintaining good color when thermally treating polyester-polyamide blends

A specially structured article is described which allows products made from the article to undergo a second heating without a dramatic color shift. This permits more recycled products from the material used to make the article.