Use of phosphonic acid diesters and diphosphonic acid diesters and thermally curable mixtures containing phosphonic acid diesters and diphosphonic acid diesters

A technology of diphosphonic acid diester and phosphonic acid diester, which is applied in the field of new curable mixtures, and can solve problems such as harmful storage stability and unfavorable viscosity of heat curable mixtures

Active Publication Date: 2012-07-18
BASF COATINGS GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these resins have a relatively high molecular weight, which disadvantageously increases the viscosity of the heat-curable mixture in question
Furthermore, depending on the catalyst used, they have a comparatively high tendency to crosslink with themselves, which is especially highly detrimental to storage stability

Method used

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  • Use of phosphonic acid diesters and diphosphonic acid diesters and thermally curable mixtures containing phosphonic acid diesters and diphosphonic acid diesters
  • Use of phosphonic acid diesters and diphosphonic acid diesters and thermally curable mixtures containing phosphonic acid diesters and diphosphonic acid diesters
  • Use of phosphonic acid diesters and diphosphonic acid diesters and thermally curable mixtures containing phosphonic acid diesters and diphosphonic acid diesters

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0130] Production of two-component systems 1 and varnishes 1

[0131] First, the two-component system 1 is produced by mixing the individual components of components (I) and (II) in the stated amounts and homogenizing the resulting mixture.

[0132] Component (I):

[0133] - 41.15 parts by weight of hydroxyl-containing polyester (from Bayer AG's Desmophen A870, 70% in butyl acetate),

[0134] -11.21 parts by weight amino resin (Cymel from Cytec Company 202),

[0135] -5.33 parts by weight of the first light stabilizer (Tinuvin available from Ciba Specialty Chemicals 292, 10% in butyl acetate);

[0136] - 10.67 parts by weight of the second light stabilizer (Tinuvin available from Ciba Specialty Chemicals 1130, 10% in butyl acetate);

[0137] -10.02 parts by weight methoxypropyl acetate (MPA) / Solvesso 100 (1:1) and -2.13 parts by weight of butyl glycol acetate.

[0138] Component (II):

[0139] - 19.49 parts by weight polyisocyanate (Basonat available from BA...

Embodiment 2

[0143] Production varnish coating 1

[0144] Use of steel plates coated with cathodically deposited and thermally cured electrocoats and thermally cured surfacers (Bonder 26S60) Production of varnish coating 1.

[0145] The commercially available aqueous basecoat material Brillantschwarz from the company BASF Coatings AG was applied over the surfacer. The resulting aqueous basecoat film was dried at 80°C for 10 minutes. Clearcoat material 1 of Example 1 was then applied, after which the aqueous basecoat film and clearcoat film 1 were co-cured at 140° C. within 22 minutes. This gave a basecoat with a film thickness of 10 μm and a clearcoat 1 with a film thickness of 40 μm.

[0146] Clearcoat 1 is completely transparent, free from paint defects such as blisters, spots or pits, bright and has a high gloss, no yellowing, hard, flexible, scratch-resistant, chemical-resistant, etch-resistant and resistant grind. It is therefore eminently suitable as a clearcoat within the rang...

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PUM

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Abstract

The invention relates to the use of phosphonic acid diesters and diphosphonic acid diesters (A) as reactants and / or catalysts for compounds (B) that can be reacted by transesterification, transamidation, self-condensation of N-hydroxyalkylamine groups and / or N-alkoxyalkylamine groups, transacetalization of N-alkoxyalkylamine groups and / or acetalization of N-hydroxyalkylamine groups. The inventionalso relates to thermally curable mixtures containing phosphonic acid diesters and diphosphonic acid diesters (A) and to methods for producing the same.

Description

technical field [0001] The present invention relates to the novel use of phosphonic acid diesters and diphosphonic acid diesters as reactants and / or catalysts. The present invention also relates to novel curable mixtures comprising phosphonic diesters and diphosphonic diesters as reactants and / or catalysts. Background technique [0002] Phosphonic acid diester is phosphonic acid [HP(O)(OH) 2 ], the phosphonic acid [HP(O)(OH) 2 ] and phosphorous acid [P(OH) 3 ] is tautomeric. Phosphonic acid diesters are often incorrectly also called hypophosphites (sekund re Phosphite). However, the true derivatives of phosphorous acid are only triesters. [0003] Diphosphonic acid diesters are diesters of diphosphonic acid (HO)(O)PH-O-PH(O)(OH) (formerly also known as diphosphorous acid). [0004] (On this point, see R mpp Lexikon der Chemie, Georg Thieme Verlag, Stuttgart, New York, 1990, "Phosphites", "Phosphonates", "Phosphonic acids", "Diethylphosphite" and "Dimethylphosphite"...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D5/00
CPCC08K5/527C08L61/00C09D167/00C08G18/42C08L67/00C09D175/04C08K5/524C08L2666/16C09D5/00B01J27/14C08G18/809C08G18/3882C08G18/792C08G18/388C08G18/289C08G18/3878
Inventor A·波佩E·韦斯特霍夫B·格鲍尔P·迈恩费尔斯
Owner BASF COATINGS GMBH
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