Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for improving coating cure for article coated in phosphate-contaminated electrocoat coating composition and electrocoat coating composition

A technology of ion pollution and composition, applied in the direction of electrolytic coating, electrophoretic coating, coating, etc., can solve the problems of wasting time, poor filter loading, rough appearance, etc.

Active Publication Date: 2015-07-08
BASF COATINGS GMBH
View PDF67 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Both operations are undesirable: increased pigment levels lead to rough appearance, filter loading and poor UF performance, while replacing major parts of the bath with fresh material is time consuming and extremely expensive

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for improving coating cure for article coated in phosphate-contaminated electrocoat coating composition and electrocoat coating composition
  • Method for improving coating cure for article coated in phosphate-contaminated electrocoat coating composition and electrocoat coating composition
  • Method for improving coating cure for article coated in phosphate-contaminated electrocoat coating composition and electrocoat coating composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0061] Preparation of dispersion

[0062] Dispersions A-D were prepared with the following compositions. Parts are by weight.

[0063]

[0064] 1. Aqueous Dispersion of Salted Amine Functional Epoxy Resin

[0065] Preparation of Electrocoating Coating Compositions

[0066]

[0067]

[0068]

[0069] 2. The phosphate solution is a commercial phosphate treatment obtained from an automobile assembly plant

[0070] 3. A 40% aqueous dispersion of lactated amine functional epoxy resin having 27% by weight of amine functional epoxy resin, 12% by weight of blocked isocyanate crosslinker and 2% by weight of plasticizer.

[0071]The curing response of the electrocoat coating composition was tested by the Gel Fraction Test Method according to the following procedure.

[0072] 1. Weigh and record the mass of a 1" x 4" phosphated steel disc (A).

[0073] 2. Electrocoat the wafer and cure using the desired cure program.

[0074] 3. Weigh and record the mass of the cured e...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

An electrocoat coating composition contaminated with phosphate ions is treated by adding zirconium silicate to the coating composition. Aqueous electrocoat coating compositions including (1) a bismuth compound and that is free of tin compounds and free of bismuth hydroxide or (2) having a catalyst consisting essentially of a member selected from the group consisting of bismuth compounds and mixtures of these also include zirconium silicate.

Description

technical field [0001] The present invention relates to organic electrocoating coating compositions and methods, particularly those used as part of a coating process that includes phosphate pretreatment of metal articles prior to their electrocoating. Background technique [0002] This section provides information that may be helpful in understanding the present invention but is not necessarily prior art. [0003] Industrial coating of metal articles to be used in corrosive environments may involve the application of one or more inorganic and organic treatments and coatings. Painting systems ("paint shops") in automotive assembly plants are large, complex and expensive. For example, metal automobile bodies ("body-in-white") and components are subjected to multi-step treatments that include cleaning in one or more cleaning baths or spray tanks, phosphating baths as metal pre-treatment The steps carry out the application of a water-based phosphate paint, followed by various ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C09D5/44C09D7/61
CPCC08K3/34C09D5/448C09D5/4488C09D7/1216C08K2003/321C09D7/61C08K3/32C25D13/02C25D13/10C25D13/22
Inventor R·D·席勒K·M·朔克
Owner BASF COATINGS GMBH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com