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Biuret compounds for rheology control

A compound, biuret technology, applied in the field of biuret compounds for rheological control

Active Publication Date: 2007-09-12
BYK CHEM GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, a disadvantage of these products is that they are only stable in solution in highly polar solvents such as NMP with the aid of basic metal salts

Method used

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  • Biuret compounds for rheology control
  • Biuret compounds for rheology control
  • Biuret compounds for rheology control

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] In a 1-liter 3-neck flask equipped with a stirrer, reflux condenser and thermometer, 195.0 g (0.5 mol) of hexamethylene diisocyanate uretdione (Desmodur(R) N3400 from Bayer, NCO content=21.5%) was added at room temperature and 138.2 g (1.0 mol) ethylene glycol monophenyl ether, and this initial charge was heated to 70°C. The reaction was carried out until the NCO content was less than 0.1%. Then, the reaction mixture was cooled to 50°C.

[0066] Table 1:

[0067] Example

uretdione

Amine / alcohol component

2

hexamethylene diisocyanate uretdione

Decanol

3

hexamethylene diisocyanate uretdione

oleyl alcohol

4

hexamethylene diisocyanate uretdione

Polyglycol M 350

5

hexamethylene diisocyanate uretdione

benzylamine

6

hexamethylene diisocyanate uretdione

Tridecylamine

7

hexamethylene diisocyanate uretdione

Jeffamine® M 600

8

hexamethylene diisocyan...

Embodiment 10

[0074] In a 1-liter 3-neck flask equipped with a stirrer, a water separator and a thermometer, 227.8 g (0.4 mol) of the dimer acid Pripol was added sequentially TM 1009 (hydrogenated dimerized fatty acid, Uniqema, trimer acid up to 1%), 69.6 g (0.6 mol) hexamethylene diamine and 152.1 g Exxsol D40 (dearomatized hydrocarbon, ExxonMobil Chemical), the original The addition was slowly heated to 170°C. The water slowly released during the reaction is azeotropically separated by a water separator. The condensation product has an amine number of 51. Then, 57.6 g (0.2 mol) of tall oil fatty acid (monocarboxylic acid mixture containing high content of oleic and linoleic acids and about 2% of resin acid (abietic acid), Arizona Chemical GmbH) was added and azeotroped through a water separator The water released during the reaction is separated off. The condensation product had an amine number of 22.7. Then, the reaction mixture was cooled to 50°C.

[0075] Table 2:

[0076] ...

Embodiment 20

[0088] In a 1-liter 3-necked flask equipped with a stirrer, reflux condenser and thermometer, 66.6 g (0.1 mol) of the adduct from Example 1 and 247.1 g (0.1 mol; number of amines = 22.7) from the adduct were sequentially added at room temperature The condensation product of Example 10, the initial charge was heated to 85°C. The reaction mixture was stirred until the amine number was less than one. The product was then diluted with isobutanol to 30% solids.

[0089] table 3:

[0090] Example

Component A

Component B

21

Example 2

Example 19

22

Example 4

Example 11

23

Example 7

Example 15

24

Example 8

Example 13

25

Example 9

Example 14

[0091] Performance results:

[0092] White paint formulation: Worléekyd S 365 white paint, 64% binder, 20% TiO 2

[0093] Worléekyd S 365 70% in K 030 34.4

[0094] Disperbyk(R) 110 0.6

[0095] RKB-2(TiO 2 ) 20.0

[0096...

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PUM

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Abstract

The invention relates to biuret compounds as rheology control agent. The invention relates to biuret compounds of the idealized general formula (in which R1 to R6, Z and a are defined in the description.) The invention relates to process for preparing a biuret compound, and to biuret compound as biuret compounds function as anti-sag agents and / or anti-settling agents.

Description

technical field [0001] The present invention relates to biuret compounds, a process for preparing biuret compounds and the use of biuret compounds as rheology control agents for coating systems such as solvent-containing, solvent-free and water-based coatings, PVC-enhanced coatings Plastisols, epoxy-based coatings and coatings based on unsaturated polyester resins, etc. Background technique [0002] To control the rheology of liquid coating systems, silica, hydrogenated castor oil, or organically modified bentonites are commonly used, as described in US Pat. Nos. 4,208,218, 4,410,364 and 4,412,018, among others. In addition, polyamide waxes are widely used. In particular, there have been many patents in the field of polyamides and polyesteramides, such as DE 69523221, EP 0528363, EP 0239419, US 5,510,452 and US 5,349,011, among others. [0003] Combinations of modified bentonites and polyamides can also be used, as described in EP 0509202 and DE 69704691. [0004] The dis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C275/62C07C273/18C09D7/02C09D7/12C09D7/45
CPCC08G18/798C08G18/7831C08G18/2825C07C275/62C08G18/5024C08G18/2835C08G18/2865C08K5/21C08G18/606C09D7/02C09D7/002C08G18/283C09D7/43C09D7/45C08G18/78C08G61/12C07C263/10C07C275/00
Inventor 卡汉兹·哈班尼斯特乌尔里希·奥瑟马蒂亚斯·皮凯弗史蒂芬·马斯摩丹妮拉·贝特克
Owner BYK CHEM GMBH