Reaction mixture suitable for manufacturing of foam with reduced aldehyde emission
A technology of reactive mixtures and reactive compounds, applied in the field of polyurethane foam, can solve problems such as high viscosity and inability to provide PU foam
Pending Publication Date: 2021-09-24
HUNTSMAN INT LLC
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- Description
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- Application Information
AI Technical Summary
Problems solved by technology
But the viscosity of these compositions is very high
[0007] However, known solutions do not provide PU foams that effectively reduce formaldehyde, acetaldehyde and propionaldehyde emissions
Method used
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Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1-5
[0109] Examples 1-5 were prepared using a polyfunctional isocyanate as the A component. The B components of Examples 1-5 are shown in Table 1. All values listed in Table 1 refer to parts by weight of the B component. Example 5 is a comparative example that does not contain an aldehyde scavenger.
[0110] Table 1
[0111]
[0112] program
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Disclosed is a reaction mixture for the manufacturing of a polyurethane foam, which mixture can be obtained by reacting a polyfunctional isocyanate with an isocyanate-reactive compound, in the presence of a scavenger and at least one catalyst; and curing such reaction mixture enables providing a foam with reduced aldehyde emissions particularly useful in means of transport, such as interior part of cars.
Description
technical field [0001] The present invention relates to the manufacture of polyurethane (rigid or flexible) foams with reduced aldehyde emissions, and more particularly to polyurethane (PU) foams useful for interior trim parts of vehicles such as automobiles. Background technique [0002] Formaldehyde and acetaldehyde emissions can cause unpleasant odors and health-related problems. Methods for reducing formaldehyde emissions in polyurethane or polyurea compositions through the use of scavenger additives are known in the art. [0003] US20160304686 discloses the use of acidic compounds as aldehyde scavengers in polyurethane. But these compounds are only effective in reducing formaldehyde emissions. [0004] WO2017207687 discloses the use of aldehyde scavengers (amine compounds) for reducing aldehyde emissions in PU foams. But some amine compounds may cause strong color changes of PU foam. [0005] US2009326089 discloses the use of compounds containing at least one carbon...
Claims
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IPC IPC(8): C08G18/67C08G18/30C08G18/65
CPCC08G18/4833C08G18/485C08G18/4816C08G18/3275C08G18/6674C08G18/6688C08G18/7664C08G18/1833C08G18/1825C08G18/161C08K5/0008C08K5/1545C08K5/08C08G2110/005C08G2110/0083C08L75/04C08G18/48C08G2101/00C08G18/18C08G18/4841C08G18/7671C08J9/0023C08J9/125C08J2203/10C08J2375/12C08K5/132C08K5/1535
Inventor 栾宝戎朱霞张悦凡L·博纳米J·博斯曼
Owner HUNTSMAN INT LLC