DISPENSING SYSTEM FOR MIXTURE OF TWO COMPONENTS AND STATIC MIXING NOZZLE THEREFOR

Dispensing system (100) for dispensing a mixture of a first component and a second component, the dispensing system comprising: (i) a dispensing gun comprising an inlet body with a first passage (121) for feeding in the first component under pressure and a second passage (121') for feeding in the second component under pressure, the first and second passages respectively comprising a closable first outlet and a closable second outlet, which may be operable by means of a handle or trigger of the dispensing gun; (ii) a static mixing nozzle, detachably connectable to the outlets of the body and provided for mixing and dispensing the components, the static mixing nozzle comprising a first section containing a first chamber and a second chamber for conducting the first and second component respectively and a second section, subsequent to the first section (in forwards flow direction), containing a mixing chamber with static mixing elements which promote mixing the first and second components and conducting the mixture to a nozzle tip serving as an outlet for the mixture. According to the invention, at least one of the first and second chambers of the static mixing nozzle contains a series of static backflow prevention elements, arranged for hindering backflow of the respective component within the respective chamber.

Polyurethane foam forming compositions

The present invention relates to the field of polyol components suitable for forming polyurethane foam, in particular two component polyurethane foam the resulting foams and methods for their production. The present inventors found gaseous hydrohaloolefin containing polyol components possessing improved shelf-life properties, in particular polyol components comprising a gaseous hydrohaloolefin blowing agent, a nitrogen catalyst and a tin catalyst, wherein the tin catalyst comprises a sulfur atom. The present inventors also found that the shelf- life is further improved if the nitrogen catalyst is at least partially protonated by reaction with an acid, such as an organic acid.

POLYURETHANE FOAM FORMING COMPOSITIONS

The present invention relates to the field of polyol components suitable for forming polyurethane foam, in particular two component polyurethane foam the resulting foams and methods for their production. The present inventors found gaseous hydrohaloolefin containing polyol components possessing improved shelf-life properties, in particular polyol components comprising a gaseous hydrohaloolefin blowing agent, a nitrogen catalyst and a tin catalyst, wherein the tin catalyst comprises a sulfur atom. The present inventors also found that the shelf- life is further improved if the nitrogen catalyst is at least partially protonated by reaction with an acid, such as an organic acid.

Dispensing system for mixture of two components and static mixing nozzle therefor

Dispensing system (100) for dispensing a mixture of a first component and a second component, the dispensing system comprising: (i) a dispensing gun comprising an inlet body with a first passage (121) for feeding in the first component under pressure and a second passage (121') for feeding in the second component under pressure, the first and second passages respectively comprising a closable first outlet and a closable second outlet, which may be operable by means of a handle or trigger of the dispensing gun; (ii) a static mixing nozzle, detachably connectable to the outlets of the body and provided for mixing and dispensing the components, the static mixing nozzle comprising a first section containing a first chamber and a second chamber for conducting the first and second component respectively and a second section, subsequent to the first section (in forwards flow direction), containing a mixing chamber with static mixing elements which promote mixing the first and second components and conducting the mixture to a nozzle tip serving as an outlet for the mixture. According to the invention, at least one of the first and second chambers of the static mixing nozzle contains a series of static backflow prevention elements, arranged for hindering backflow of the respective component within the respective chamber.

DISPENSING SYSTEM FOR MIXTURE OF TWO COMPONENTS AND STATIC MIXING NOZZLE THEREFOR

POLYURETHANE schuimvormendeSCHUIMVORMENDE COMPOSITIONS

doseersysteemDOSEERSYSTEEM FOR MIXING TWO COMPONENTS AND STATICALLY mengmondstukMENGMONDSTUK FOR THAT

POLYURETHANE FOAM FORMING COMPOSITIONS

The present invention relates to the field of polyol components suitable for forming polyurethane foam, in particular two component polyurethane foam the resulting foams and methods for their production. The present inventors found gaseous hydrohaloolefin containing polyol components possessing improved shelf-life properties, in particular polyol components comprising a gaseous hydrohaloolefin blowing agent, a nitrogen catalyst and a tin catalyst, wherein the tin catalyst comprises a sulfur atom. The present inventors also found that the shelf-life is further improved if the nitrogen catalyst is at least partially protonated by reaction with an acid, such as an organic acid. 1. A polyol component suitable for producing two component polyurethane foam wherein the polyol component comprises a polyol; a gaseous hydrohaloolefin blowing agent; a nitrogen catalyst; and a tin catalyst , wherein the tin catalyst comprises a sulfur atom , wherein the gaseous hydrohaloolefin blowing agent is selected from 1 ,3 ,3 ,3-tetrafluoropropene (HFO 1234ze); 2 ,3 ,3 ,3-tetrafluoroprop-1-ene (HFO 1234yf); 1 ,2 ,3 ,3 ,3-pentafluoropropene (HFO 1225ye); 1 ,1 ,3 ,3 ,3-pentafluoropropene (HFO 1225zc); 1 ,1 ,2 ,3 ,3-pentafluoropropene (HFO 1225yc); or a combination thereof.2. The polyol component according to claim 1 , wherein the polyol is selected from the group consisting of a sucrose containing polyol; phenol claim 1 , a phenol formaldehyde containing polyol; a glucose containing polyol; a sorbitol containing polyol; a methylglucoside containing polyol; an aromatic polyester polyol; an aliphatic polyester polyol; an aromatic polyether polyol; an aliphatic polyether polyol; a polybutadiene polyol; a polycaprolactone polyol; a polycarbonate polyol; a hydroxyl terminated polyolefin polyol; a graft polyol; glycerol; ethylene glycol; diethylene glycol; propylene glycol-containing polyol; graft copolymers of polyether polyols with a vinyl polymer; a copolymer of a polyether polyol with a ...

POLYURETHANE schuimvormendeSCHUIMVORMENDE COMPOSITIONS

Dispensing system for mixture of two components and static mixing nozzle therefor

Dispensing system for dispensing a mixture of a first component and a second component, the dispensing system comprising: (i) a dispensing gun comprising an inlet body with a first passage for feeding in the first component under pressure and a second passage for feeding in the second component under pressure, the first and second passages respectively comprising a closable first outlet and a closable second outlet, which may be operable by means of a handle or trigger of the dispensing gun; (ii) a static mixing nozzle, detachably connectable to the outlets of the body and provided for mixing and dispensing the components, the static mixing nozzle comprising a first section containing a first chamber and a second chamber for conducting the first and second component respectively and a second section, subsequent to the first section (in forwards flow direction), containing a mixing chamber with static mixing elements which promote mixing the first and second components and conducting the mixture to a nozzle tip serving as an outlet for the mixture. According to the invention, at least one of the first and second chambers of the static mixing nozzle contains a series of static backflow prevention elements, arranged for hindering backflow of the respective component within the respective chamber.

Polyurethane foam forming compositions

The present invention relates to the field of polyol components suitable for forming polyurethane foam, in particular two component polyurethane foam the resulting foams and methods for their production. The present inventors found gaseous hydrohaloolefin containing polyol components possessing improved shelf-life properties, in particular polyol components comprising a gaseous hydrohaloolefin blowing agent, a nitrogen catalyst and a tin catalyst, wherein the tin catalyst comprises a sulfur atom. The present inventors also found that the shelf-life is further improved if the nitrogen catalyst is at least partially protonated by reaction with an acid, such as an organic acid.

Polyurethane foam forming compositions

The present invention relates to the field of polyol components suitable for forming polyurethane foam, in particular two component polyurethane foam the resulting foams and methods for their production. The present inventors found gaseous hydrohaloolefin containing polyol components possessing improved shelf-life properties, in particular polyol components comprising a gaseous hydrohaloolefin blowing agent, a nitrogen catalyst and a tin catalyst, wherein the tin catalyst comprises a sulfur atom. The present inventors also found that the shelf-life is further improved if the nitrogen catalyst is at least partially protonated by reaction with an acid, such as an organic acid.

Polyurethane foam forming compositions

The present invention relates to the field of polyol components suitable for forming polyurethane foam, in particular two component polyurethane foam the resulting foams and methods for their production. The present inventors found gaseous hydrohaloolefin containing polyol components possessing improved shelf-life properties, in particular polyol components comprising a gaseous hydrohaloolefin blowing agent, a nitrogen catalyst and a tin catalyst, wherein the tin catalyst comprises a sulfur atom. The present inventors also found that the shelf- life is further improved if the nitrogen catalyst is at least partially protonated by reaction with an acid, such as an organic acid.

Dispensing system for mixture of two components and static mixing nozzle therefor

Dispensing system (100) for dispensing a mixture of a first component and a second component, the dispensing system comprising: (i) a dispensing gun comprising an inlet body with a first passage (121) for feeding in the first component under pressure and a second passage (121') for feeding in the second component under pressure, the first and second passages respectively comprising a closable first outlet and a closable second outlet, which may be operable by means of a handle or trigger of the dispensing gun; (ii) a static mixing nozzle, detachably connectable to the outlets of the body and provided for mixing and dispensing the components, the static mixing nozzle comprising a first section containing a first chamber and a second chamber for conducting the first and second component respectively and a second section, subsequent to the first section (in forwards flow direction), containing a mixing chamber with static mixing elements which promote mixing the first and second components and conducting the mixture to a nozzle tip serving as an outlet for the mixture. According to the invention, at least one of the first and second chambers of the static mixing nozzle contains a series of static backflow prevention elements, arranged for hindering backflow of the respective component within the respective chamber.

Sistema de dispensación para mezclar dos componentes y boquilla de mezcla estática para ello

Sistema dosificador (100) para dosificar una mezcla de un primer componente y un segundo componente, comprendiendo el sistema dosificador: (i) una pistola dosificadora que comprende un cuerpo de entrada con un primer paso (121) para alimentar el primer componente bajo presión y un segundo paso (121') para alimentar el segundo componente bajo presión, comprendiendo el primer y segundo paso respectivamente una primera salida que se puede cerrar y una segunda salida que se puede cerrar, que pueden accionarse por medio de un mango o gatillo de la pistola dispensadora; (ii) una boquilla mezcladora estática, conectable de manera desmontable a las salidas del cuerpo y provista para mezclar y dispensar los componentes, comprendiendo la boquilla mezcladora estática una primera sección que contiene una primera cámara y una segunda cámara para conducir el primer y segundo componente respectivamente y una segunda sección, posterior a la primera sección (en la dirección del flujo hacia adelante), que contiene una cámara de mezcla con elementos de mezcla estáticos que promueven la mezcla del primer y segundo componentes y conducen la mezcla a una punta de boquilla que sirve como salida para la mezcla. Según la invención, al menos una de las cámaras primera y segunda de la boquilla mezcladora estática contiene una serie de elementos de prevención de reflujo estáticos, dispuestos para impedir el reflujo del componente respectivo dentro de la cámara respectiva. (Traducción automática con Google Translate, sin valor legal)

Dispensing system for mixture of two components and static mixing nozzle therefor

Dispensing system for mixture of two components and static mixing nozzle therefor

Dispensing system for dispensing a mixture of a first component and a second component, the dispensing system comprising: (i) a dispensing gun comprising an inlet body with a first passage for feeding in the first component under pressure and a second passage for feeding in the second component under pressure, the first and second passages respectively comprising a closable first outlet and a closable second outlet, which may be operable by means of a handle or trigger of the dispensing gun; (ii) a static mixing nozzle, detachably connectable to the outlets of the body and provided for mixing and dispensing the components, the static mixing nozzle comprising a first section containing a first chamber and a second chamber for conducting the first and second component respectively and a second section, subsequent to the first section (in forwards flow direction), containing a mixing chamber with static mixing elements which promote mixing the first and second components and conducting the mixture to a nozzle tip serving as an outlet for the mixture. According to the invention, at least one of the first and second chambers of the static mixing nozzle contains a series of static backflow prevention elements, arranged for hindering backflow of the respective component within the respective chamber.

Dispensing system for mixture of two components and static mixing nozzle therefor

Dispensing system (100) for dispensing a mixture of a first component and a second component, the dispensing system comprising: (i) a dispensing gun comprising an inlet body with a first passage (121) for feeding in the first component under pressure and a second passage (121') for feeding in the second component under pressure, the first and second passages respectively comprising a closable first outlet and a closable second outlet, which may be operable by means of a handle or trigger of the dispensing gun; (ii) a static mixing nozzle, detachably connectable to the outlets of the body and provided for mixing and dispensing the components, the static mixing nozzle comprising a first section containing a first chamber and a second chamber for conducting the first and second component respectively and a second section, subsequent to the first section (in forwards flow direction), containing a mixing chamber with static mixing elements which promote mixing the first and second components and conducting the mixture to a nozzle tip serving as an outlet for the mixture. According to the invention, at least one of the first and second chambers of the static mixing nozzle contains a series of static backflow prevention elements, arranged for hindering backflow of the respective component within the respective chamber.

Samenstel voor het doseren van polymeerschuim en bijbehorende doseringswerkwijzen

De onderhavige uitvinding heeft betrekking op een samenstel voor het doseren van polymeer schuim, waarbij het samenstel een onder druk staande bus omvat met een schuimbare waterige polymeersamenstelling en één of meerdere drijfgassen, en een doseerpistool, waarbij de viscositeit van de schuimbare waterige polymeersamenstelling en de stromingsweerstand van het doseerpistool zijn geoptimaliseerd om een hoog doseerrendement te bereiken. De uitvinding heeft verder betrekking op werkwijzen voor het doseren van polymeer schuim met behulp van een doseerpistool en op het bijbehorende gebruik van een doseerpistool.

An assembly for dispensing polymeric foam and related dispensing methods

The present invention relates to an assembly for dispensing polymeric foam, the assembly comprising a pressurized can with foamable aqueous polymer composition and one or more propellants, and a dispensing gun, wherein the viscosity of the foamable aqueous polymer composition and the flow resistance of the dispensing gun are optimized to achieve high dispensing yield. The invention further relates to methods of dispensing a polymeric foam using a dispensing gun and to associated uses of a dispensing gun.

Samenstel voor het doseren van polymeerschuim en bijbehorende doseringswerkwijzen

De onderhavige uitvinding heeft betrekking op een samenstel voor het doseren van polymeer schuim, waarbij het samenstel een onder druk staande bus omvat met een schuimbare waterige polymeersamenstelling en één of meerdere drijfgassen, en een doseerpistool, waarbij de viscositeit van de schuimbare waterige polymeersamenstelling en de stromingsweerstand van het doseerpistool zijn geoptimaliseerd om een hoog doseerrendement te bereiken. De uitvinding heeft verder betrekking op werkwijzen voor het doseren van polymeer schuim met behulp van een doseerpistool en op het bijbehorende gebruik van een doseerpistool.