Examples of 'physical blowing agent' in a sentence
Meaning of "physical blowing agent"
physical blowing agent - a substance used in the production of foams and bubbles in various industrial processes
How to use "physical blowing agent" in a sentence
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Advanced
physical blowing agent
A physical blowing agent is incorporated in the system.
It is known conventionally as a chemical or physical blowing agent.
A preferred physical blowing agent comprises carbon dioxide.
The blowing agent can be a chemical or physical blowing agent.
An inert physical blowing agent.
Any low boiling chemical compound can be used as physical blowing agent.
A chemical or physical blowing agent may be added to promote foaming.
The preferred blowing agent is of a chemical nature as opposed to a physical blowing agent.
A physical blowing agent comprising a swelling agent is therefore preferred.
Water or a mixture of water and a physical blowing agent is preferred.
A physical blowing agent is typically used in the production of the foam.
The blowing agent usually comprises water and may additionally comprise a physical blowing agent.
The physical blowing agent can be in any form and is preferably a gas or liquid.
In an embodiment, the foaming agent is a physical blowing agent.
The physical blowing agent containing components ( a ) and ( b ) is more fully described as follows.
See also
As mentioned, in preferred embodiments a physical blowing agent is used.
Preferably, the physical blowing agent is isobutane or CO2.
Alternatively, the blowing agent may be a physical blowing agent.
It is preferable to add a physical blowing agent having a boiling point between 0 and 80°C.
In the present invention, the expansion agent will preferentially be a physical blowing agent.
The gas used as physical blowing agent can be for example N2 or CO2.
In some processes for making the present structure, a physical blowing agent may be used.
Preferably, a physical blowing agent having a boiling point in the range of from 0 to 80 °C is added.
In some processes for making the present structure, a physical blowing agent is optionally used.
A smaller thickness gives a shorter drying time and / or reduced level of remaining physical blowing agent.
A preferred thermoplastic for use with a physical blowing agent is polyetherimide ( PEI ).
In some embodiments, a hydrocarbon blowing agent, such as cyclopentane, is uses as a physical blowing agent.
The process of claim 12, wherein the physical blowing agent concentration is less than 25 % by weight.
A method as in claim 25, wherein the blowing agent is a physical blowing agent.
The method according to claim 6 or 7, wherein the physical blowing agent is pentane.
In a preferred embodiment, metering device 46 measures the mass flow rate of the physical blowing agent.
A pressure and metering device 46 is provided between the physical blowing agent source 44 and port 42.
Methylene Chloride ( Zibo Fengchang Chemicals ) was a physical blowing agent.
CO2 has a number of technical and cost advantages as a physical blowing agent for PUR.
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