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

Paint compositions, method of paint finishing and painted objects

A composition and paint technology, applied in coatings, epoxy resin coatings, etc., can solve the problems of unrestrained reactivity and storage stability, and achieve sufficient storage stability and excellent weather resistance

Active Publication Date: 2008-12-03
BASF COATINGS JAPAN
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since amino resins are used in these paint compositions, sufficient storage stability cannot be obtained as a liquid type paint
In addition, paint compositions including acrylic polycarboxylic acids, polyepoxides, and antioxidants (for example, Cited Patent 2) and structural units containing carboxyl-containing low lactone-modified hydroxy (meth)acrylates Paint compositions of acrylic polycarboxylic acid resins with polyepoxides (for example, Cited Patent 3) are known, but in these cases, since the reactivity of the acid / epoxy group is not suppressed, it is used as a A liquid type of paint that does not give sufficient storage stability

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
  • Paint compositions, method of paint finishing and painted objects
  • Paint compositions, method of paint finishing and painted objects
  • Paint compositions, method of paint finishing and painted objects

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-10

Embodiment 11

Embodiment 12-20 and comparative example 18-33

Test pieces were produced in the same manner as in Example 1 except that varnishes CC-2 to CC-26 were used. Tables 7-9 show the paint film properties.

[0061] Table 7

Example

[0062] Table 8

12

[0063] Table 9

14

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

PropertyMeasurementUnit
hydroxyl valueaaaaaaaaaa
acid valueaaaaaaaaaa
hydroxyl valueaaaaaaaaaa
Login to View More

Abstract

To provide a paint composition which contains as essential components (A) a carboxyl group containing resin obtained by the copolymerization of a carboxyl group containing radically polymerizable monomer and other radically polymerizable monomer in which two or more carboxyl groups are included in one molecule and of which the acid value is from 100 to 300 mgKOH / g and the weight average molecular weight is from 2,000 to 30, 000, and wherein from 5 to 50 mass% of structural units based on a lactone compound are included in the resin solid fraction, (B) an epoxy group containing resin where two or more epoxy groups are included in one molecule, (C) ultraviolet absorber and (D) a light stabilizer of which the basicity (pKb) is at least 9, and in which the proportions as a mol ratio of the carboxyl groups of the (A) component and the epoxy groups of the (B) component are within the range from 75 / 25 to 25 / 75, a method of finish paining and the resulting painted objects.

Description

[technical field] [0001] This invention relates to novel paint compositions, methods of paint finishing and the resulting painted objects. More precisely, the present invention relates to paint compositions with which, in the field of motor vehicle painting, it is possible to obtain substantial masking properties with good weather resistance, acid resistance and micro-roughness of the surface to be painted , methods of paint finishing wherein these paint compositions are used, and the resulting painted objects. [Background technique] [0002] In recent years, in the field of automotive painting, there has been a need to provide a paint film having a high weather resistance, acid resistance, and an excellent appearance finish and storage stability that sufficiently withstands cyclic use. A method involving the inclusion of UV absorbers and light stabilizers in the paint film is commonly used to improve weatherability, and in terms of basic hiding properties, shrinks little ...

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
Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/06C09D163/00
CPCC08L33/02C08G59/42C08L63/00C09D163/00C08L33/06C09D133/06C08L2666/04C08L2666/02C08L2666/14
Inventor 小西彻冈田真智子新美类
Owner BASF COATINGS JAPAN
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