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High solids coating and process for coating

A high-solid coating, solid technology, applied in the direction of polyester coating, polyurea/polyurethane coating, coating, etc., to achieve the effect of excellent color consistency, improved stability, excellent rheological properties

Inactive Publication Date: 2019-01-04
BASF COATINGS GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While on horizontal surfaces there is less of a problem with applying fairly thick coats while leaving significant solvent content in the layer, on vertical surfaces a top coat with still significant solvent content will run too much , causing sagging to develop in the coating

Method used

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  • High solids coating and process for coating
  • High solids coating and process for coating
  • High solids coating and process for coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1 and comparative example A-C

[0100] Basecoat coating compositions were prepared using the ingredients shown in Table 1. The prepared coating compositions were reduced to a spray viscosity of 21 seconds as measured with a Fisher #2 cup, and the respective non-volatile content was determined by ASTM Test Method D2369 in which the samples were heated at 110°C (230°F) for 60 minute. These values ​​are recorded in Table 2.

[0101] Table 1

[0102]

[0103]

[0104] 1. Obtained from Eastman Chemical Company (high molecular weight cellulose acetate butyrate polymer, 37% by weight butyryl content, 13% by weight acetyl content, 1.5% by weight hydroxyl content, T g 130°C, melting point 155-165°C, viscosity 1.9 poise, as determined by ASTM method D1343 in solution described as Formulation A).

[0105] Polymerization product of 2.2.27 parts by weight of 2-ethylhexyl acrylate, 5.68 parts by weight of methyl methacrylate, 12.10 parts by weight of hydroxymethyl methacrylate, 5.68 parts by weight...

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PUM

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Abstract

A high solids coating composition having exceptional rheological properties and appearances comprises (a) a thermosetting binder, (b) from about 0.1 to about 10 wt.% based on binder solids of solid polyurea particles prepared by the reaction of a mixture of a polyisocyanate and an amino reactant comprising a primary or secondary monoamine that optionally has a hydroxyl or ether group or both, and(c) from about 2 to about 25 wt.% on resin solids of an acrylic polymer having a number average molecular weight of from about 2000 to about 8000 and a glass transition temperature of from about 50 toabout 120 DEG C.

Description

[0001] This application is a divisional application of the international application with the international application number PCT / US2012 / 065578 filed by BASF Coatings Co., Ltd. on November 16, 2012 and the title of the invention is "high solid paint and coating method". The date when the international application PCT / US2012 / 065578 entered the Chinese national phase was June 5, 2014, and the national application number was 201280059845.7. technical field [0002] The present disclosure relates to coating compositions and methods of coating, and more particularly to automotive and industrial high solids thermoset coating compositions that provide good appearance, and to applying these coating compositions and controlling the rheology of the applied coating compositions to provide Way to look good. Background technique [0003] Introduction to public content [0004] The discussions in this section merely provide background information related to the present disclosure and ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D161/28C09D133/00C09D7/61B05D7/00
CPCB05D3/007C09D133/08C09D167/00C08L33/08C08L75/02C08L61/28C09D175/02C09D133/12
Inventor T·S·德桑布尔J·G·帕提卡D·H·坎贝尔
Owner BASF COATINGS GMBH
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