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Polyurethane elastomers, process of their preparation and their use

A technology of polyurethane elastomer and polyisocyanate, applied in the field of polyurethane elastomer

Inactive Publication Date: 2006-12-27
BAYER MATERIALSCIENCE AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Known PUR elastomers prepared with conventional commercially available organotin catalysts only partially meet these listed requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0111] Embodiment 1 (comparison)

[0112] The polyol component (A) comprises:

[0113] 1887.50 parts by weight of difunctional polyether polyols 1),

[0114] 250.00 parts by weight of polyether polyol 2),

[0115] 250.00 parts by weight of 1,4-butanediol,

[0116] 1.00 parts by weight of bismuth (III) neodecanoate,

[0117] 2.00 parts by weight of lithium 2-ethylhexanoate in 2-(2-ethoxyethoxy)ethanol,

[0118] 2.00 parts by weight of bis(diacetylacetonato)-ethanol-isopropoxide titanium (IV) (bis(diacetylacetonato)titanium(IV)-ethoxide-isopropoxide),

[0119] 25.00 parts by weight of DABCO,

[0120] 20.00 parts by weight of DABCO blocked with 2-ethylhexanoic acid,

[0121] 5.00 parts by weight of Silicon DC 190 foam stabilizer,

[0122] 7.50 parts by weight of water

[0123] 100 parts by weight of these polyol components were mixed with 70 parts by weight of prepolymer 1).

Embodiment 2

[0124] Embodiment 2 (according to the present invention)

[0125] The polyol composition contains:

[0126] 1875.00 parts by weight of difunctional polyether polyols 1),

[0127] 250.00 parts by weight of polyether polyol 2),

[0128] 250.00 parts by weight of 1,4-butanediol,

[0129] 0.375 parts by weight of bis(diacetylacetonate)-ethanol-isopropoxide titanium(IV),

[0130] 17.50 parts by weight of zinc(II) octanoate,

[0131] 25.00 parts by weight of DABCO,

[0132] 20.00 parts by weight of DABCO blocked with 2-ethylhexanoic acid,

[0133] 5.00 parts by weight of Silicon DC 190 foam stabilizer,

[0134] 7.50 parts by weight of water

[0135] 100 parts by weight of these polyol components were mixed with 70 parts by weight of prepolymer 1).

Embodiment 3

[0136] Embodiment 3 (according to the present invention)

[0137] The polyol composition contains:

[0138] 1888.50 parts by weight of difunctional polyether polyols 1),

[0139] 250.00 parts by weight of polyether polyol 2),

[0140] 250.00 parts by weight of 1,4-butanediol,

[0141] 0.375 parts by weight of bis(diacetylacetonate)-ethanol-isopropoxide titanium(IV),

[0142] 5.00 parts by weight of zinc (II) octanoate,

[0143] 25.00 parts by weight of DABCO,

[0144] 20.00 parts by weight of DABCO blocked with 2-ethylhexanoic acid,

[0145] 5.00 parts by weight of Silicon DC 190 foam stabilizer,

[0146] 7.50 parts by weight of water

[0147] 100 parts by weight of these polyol components were mixed with 70 parts by weight of prepolymer 1).

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Abstract

The invention relates to polyurethane elastomers, a process for the preparation of these polyurethane elastomers and a the preparation of elastomeric molded parts comprising these polyurethane elastomers. These elastomers comprise the reaction product of a polyol component, chain extenders and / or crosslinking agents, one or more amine catalysts, a catalyst mixture which contains at least one organic titanium compound and at least one organic zinc compound, and optionally an organic lithium carboxylate and / or an organic bismuth carboxylate; with a polyisocyanate component.

Description

[0001] Cross References to Patent Applications [0002] Pursuant to 35 U.S.C. § 119(a)-(d) this patent application claims priority from German Patent Application No. 10 2005 028 785.9, filed June 22, 2005. technical field [0003] The present invention relates to polyurethane elastomers, processes for their preparation and processes for the preparation of elastically molded parts containing these polyurethane elastomers. Background technique [0004] Polyurethane (PUR) elastomers have been known for a long time and have been developed and tailored to a wide range of different needs as described in US Pat. No. 5,952,053. A large number of different metal catalysts have been tested and used to control the rate of polymerization. In addition to the widespread use of organotin compounds, known catalysts include organic compounds and organic salts of various other elements, such as lithium, titanium, bismuth, zinc, zirconium. Catalyst mixtures of titanium, lithium and bismuth ar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/48C08G18/63C08G18/76C08G18/22
CPCC08G18/222C08G18/10C08G18/485C08G18/4804C08G18/163C08G18/48C08G18/16C08G18/82
Inventor E·埃姆里希K·布勒希特F·哈恩
Owner BAYER MATERIALSCIENCE AG
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