Unlock instant, AI-driven research and patent intelligence for your innovation.

Coating compositions containing highly structural macromolecules

A composition and structuring technology, which is applied in the field of room temperature curing coating composition and low VOC, can solve the problems of unpleasant smell and unpleasantness, and achieve the effects of reducing the gap time waiting for polishing, increasing the number of repairs, and low VOC emissions

Inactive Publication Date: 2002-05-29
EI DU PONT DE NEMOURS & CO
View PDF2 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Another disadvantage of the compositions described in U.S. Patent No. 5,288,802 is the unpleasant, offensive odor associated with the acrylate functionalized diluents used in the compositions

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment A

[0090] Synthesis of Pentaerythritol Tetraacetoacetate (PE / AcAc)

[0091] Components of Feed I

Embodiment B

[0093] Structured tetraacetoacetate oligomer (PE / MHHPA / Cardura E-10 / AcAc)

[0094] components

[0095] 1 Cardura  E-10 is the glycidyl ester of decacarbonic acid, which is available from Shell Chemical Company.

Embodiment C

[0097] Polyester oligomer with structured tetraacetoacetate groups (PE / MHHPA / EO / AcAc)

[0098] components

Parts by weight (grams)

Feed I

2-Heptanone

303

pentaerythritol

136

Triethylamine

0.23

Feeding II

Methylhexahydrophthalic anhydride 1

654

Feed III

Ethylene oxide

176

Feed IV

tert-Butyl Acetoacetate

632

total

1901.23

[0099] 1 Milldride  Methylhexahydrophthalic anhydride supplied by Milliken Chemical Company.

[0100] Structured Reactive Diluent Example D

[0101] Acetoacetate-functionalized highly branched polyesters

[0102] components

Parts by weight (grams)

Feed I

Dimethylolpropionic acid

200

ε-Cyclocaprolactone

400

4,4'-Isopropylidene dicyclohexanol

179

Tin bis(2-ethylhexanoate)

3

Xylene

...

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
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention is directed to a two-pack high solids low VOC ambient curable coating composition, which includes cross-linking and binder components. The cross-linking component includes a polyamine, a polyketimine or a combination thereof. The polyamine is provided on an average with at least two amine functionalities per polymer chain and the polyketimine is provided on an average with at least two ketimine functionalities per polymer chain. A reactive diluent in the binder component includes a macromolecule substantially free from acrylate functionalities and having at least two acetoacetate functionalities per the macromolecule. If desired, the coating composition includes a binder polymer. The coating composition of the invention is particularly suited in automotive refinish coating.

Description

Background of the invention [0001] The present invention relates to curable compositions, and more particularly, to low VOC (volatile organic components), ambient cure coating compositions, which are suitable for use in automotive refinish applications. Many clear and pigmented coating compositions are used in different coating films, for example, for automotive refinish coatings, primers, midcoats, topcoats, usually solvent-based. [0002] When repairing bodywork damage such as dents and scratches, old paint in and around the damaged area is often mechanically sanded or rolled out. Sometimes part or all of the old paint is stripped from the car body, exposing the underlying substrate (eg, exposed metal). After the damage has been repaired, it is preferred to apply a low VOC coating composition to the repaired surface, usually in a portable or stationary low cost garage with ventilation outlets which remove the steel in an environmentally safe manner. Organic solvents in fre...

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): C09D105/00C09D133/00C09D167/00C09D201/00C09D201/06
CPCC09D201/06C09D201/005C08L2666/28
Inventor P·H·科尔科兰C·B·杜格拉斯E·D·菲尔顿J·胡伊布雷赫茨G·D·亚科克斯P·M·E·索尔马尼M·斯特鲁克尔L·维尔策克
Owner EI DU PONT DE NEMOURS & CO