Compositions for the manufacture of polyurethane foams and molded articles thereof
A technology of polyurethane foam and composition, applied in the field of polyurethane composition, which can solve the problems of insufficient improvement and limitation of seat cushion ride comfort, and achieve the effects of improving comfort function, increasing output, and maximizing ride comfort
Active Publication Date: 2021-06-25
HYUNDAI MOTOR CO LTD +1
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- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, the raw materials used to manufacture conventional polyurethanes may be limited and, therefore, compensating technologies may be required for this limitation
[0005] Specifically, in conventional polyurethane foam compositions, although toluene diisocyanate, methylene diphenyl diisocyanate, and polymethylene diphenyl diisocyanate have been used as isocyanates, the seating comfort of seat cushions has not been sufficiently obtained. improvement of
Method used
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Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0083] Polyurethane foams were produced by the same method as in Comparative Examples 1-15 according to the composition ratios in Table 3 below.
[0084]
[0085] Table 2
[0086] Composition for making polyurethane foam (unit: parts by weight)
[0087]
[0088] table 3
[0089] Composition for making polyurethane foam (unit: parts by weight)
[0090]
[0091]
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Abstract
The invention discloses a polyurethane composition, a molded article and a vehicle comprising the polyurethane composition or the molded article. The polyurethane composition comprises a polyol composition (A), an isocyanate composition (B), and in the polyol composition (A), a polyether polyol (a1) and a polymer polyol (a2) are mixed in a predetermined amount, The isocyanate composition (B) is obtainable by polymerizing a polyether polyol (b2) and an isocyanate composition (b1) comprising i) methylene diphenyl isocyanate (M-MDI) and ii) polymethylene diphenyl isocyanate (P-MDI). In this way, molded articles, such as vehicle seat cushions, can be produced with improved static and dynamic comfort.
Description
technical field [0001] The present invention relates to a polyurethane composition for the manufacture of vehicle seat cushions with improved static and dynamic comfort. The composition may comprise a polyol composition A, an isocyanate composition B, in which polyether polyol a1 and polymer polyol a2 are mixed in a predetermined amount, and the isocyanate composition B is included in sub Obtained without the step of polymerizing polyether polyols using toluene diisocyanate in an isocyanate mixture of methyl diphenyl diisocyanate (monomer or M-MDI) and polymethylene diphenyl diisocyanate (P-MDI). The composition may optionally contain additives. Background technique [0002] In the related art, the hardness and other mechanical properties of vehicle seat cushions are considered to be important properties related to properties such as the shape and formability of the seat as well as the appearance. In addition, in order to reduce vehicle manufacturing costs, polyurethane se...
Claims
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IPC IPC(8): C08G18/76C08G18/48C08G18/63C08G18/32
CPCC08G18/10C08G18/4837C08G18/7664C08G18/7671C08G2110/0058C08G18/48C08G18/63C08G18/3275C08G2350/00C08G18/632C08G2110/0008C08G2110/0083C08G18/4072C08G18/4833C08G18/72C08J9/04C08L75/04C08G18/12C08G18/30C08G18/4825C08G18/6552C08G18/7621C08G18/7657C08J9/125C08J2203/10C08J2375/04
Inventor 李成铉崔权勇李东昱林炳局郑淳俊李一坤朴裁范
Owner HYUNDAI MOTOR CO LTD