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Polyurethane compositions with reduced aldehyde emissions

A composition and polyurethane technology, applied in the field of polyurethane compositions, can solve the problems of being unsuitable for PU foam technology, unable to provide PU foam compositions, etc.

Pending Publication Date: 2022-03-11
HUNTSMAN PETROCHEMICAL LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But such additives are not suitable for PU foam process
[0010] However, known solutions do not provide PU foam compositions that can significantly reduce both formaldehyde and acetaldehyde emissions

Method used

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  • Polyurethane compositions with reduced aldehyde emissions
  • Polyurethane compositions with reduced aldehyde emissions
  • Polyurethane compositions with reduced aldehyde emissions

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0034] According to one embodiment, the polyfunctional isocyanate comprises formula Q(NCO) n those shown, wherein n is a number from 2 to 5, preferably 2 to 3, and Q is an aliphatic hydrocarbon group containing 2-18 carbon atoms, a cycloaliphatic hydrocarbon group containing 5-10 carbon atoms, a group containing 8- An araliphatic hydrocarbon of 13 carbon atoms, or an aromatic hydrocarbon group containing 6 to 15 carbon atoms, of which aromatic hydrocarbon groups are generally preferred.

[0035] Examples of polyfunctional isocyanates include, but are not limited to, ethylene diisocyanate; 1,4-tetramethylene diisocyanate; 1,6-hexamethylene diisocyanate; 1,12-dodecane diisocyanate; cyclobutane -1,3-diisocyanate; cyclohexane-1,3- and -1,4-diisocyanate, and mixtures of these isomers; isophorone diisocyanate; 2,4- and 2,6-hexa Hydrogen toluene diisocyanate and mixtures of these isomers; dicyclohexylmethane-4,4'-diisocyanate (hydrogenated MDI or HMDI); 1,3- and 1,4-phenylene diisoc...

Embodiment 1-9

[0085] Examples 1-9 were produced using polyfunctional isocyanates as the A component. The B-components used in Examples 1-9 are shown in Table 1. All values ​​listed in Table 1 refer to parts by weight of the B component. As shown in Table 1, Examples 4 and 5 are comparative examples, which do not contain an aldehyde scavenger. Examples 6 and 7 are comparative examples without primary amine containing compounds. Example 8 is a comparative example with the addition of too much primary amine containing compound. Finally, Example 9 is a comparative example, which does not contain an aldehyde scavenger or a primary amine-containing compound.

[0086] Table 1

[0087]

[0088]

[0089] program

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PUM

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Abstract

The present disclosure generally provides compositions having reduced aldehyde emissions, and more particularly, polyurethane compositions useful in interior components of a vehicle, such as a passenger car, where the polyurethane compositions comprise: (a) a polyfunctional isocyanate; (b) an isocyanate reactive composition; (c) a compound of formula (I); (d) a primary amine-containing compound; and (e) a catalyst.

Description

[0001] Field of Invention [0002] The present invention relates generally to polyurethane compositions having reduced aldehyde emissions, and more particularly to polyurethane compositions useful in interior components of vehicles such as passenger cars. [0003] Background of the Invention [0004] Emissions of formaldehyde and acetaldehyde can cause unpleasant odors and health-related problems. Methods for reducing formaldehyde emissions in polyurethane or polyurea (PU) compositions through the use of scavenging additives are already known in the art. [0005] US20160304686 discloses the use of acidic compounds as aldehyde scavengers in polyurethanes. But these compounds are only used to reduce formaldehyde emissions. [0006] WO2014026802 discloses the use of aldehyde scavengers (amine compounds) to reduce aldehyde emissions in PU foams. But these compounds are not very effective in reducing acetaldehyde emissions. [0007] US20060141236 discloses the use of hydrazine c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/08C08G18/48C08G18/72
CPCC08G18/4837C08G18/4009C08G18/6688C08G18/7621C08G18/7664C08G18/7607C08G18/1825C08G18/1833C08G18/3275C08G18/3228C08G2110/0083C08G2110/0008C08G2110/0016C08G2110/0025C08G2110/0033C08K5/3462C08L75/08C08G18/18C08G18/3848
Inventor 纪仁杰梁亦德
Owner HUNTSMAN PETROCHEMICAL LLC