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Peel-coat compositions

A composition and coating technology, applied in the direction of coating, etc., can solve environmental problems such as vinyl chloride

Inactive Publication Date: 2010-02-17
VALSPAR SOURCING INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, vinyl chloride emissions generated during the synthesis and degradation of PVC pose environmental concerns

Method used

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  • Peel-coat compositions
  • Peel-coat compositions
  • Peel-coat compositions

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-3

[0037] Each of the coated articles of Examples 1-3 included a release coating of the present invention on a topcoat-coated substrate, wherein the topcoat was different for each coated article. A release coating composition having the component concentrations listed in Table 1 was prepared first, and then the release coating of the coated article was prepared.

[0038]

[0039] PVB Dispersion FP: purchased from Solutia, Inc., St. Louis, MO under the trade name " PVB resin dispersion FP" is a polyvinyl butyral dispersion comprising plasticized polyvinyl butyral (about 50% by weight solids polyvinyl butyral resin) dispersed in water.

[0040] Acrylic emulsion: purchased from Union Carbide Chemicals & Plastics Technology Corporation, Danbury, CT under the trade name " 400 Latexes" acrylic emulsion comprising an acrylic latex compound emulsified in water (approximately 45% by weight solids acrylic latex compound).

[0041] Propylene glycol: Propylene glycol was purchased fro...

Embodiment 4-6

[0050] Each of the coated articles of Examples 4-6 comprises another release coating of the present invention on a substrate coated with a topcoat, wherein the topcoat of each coated article The coating is different. A release coat composition having the component concentrations listed in Table 2 was prepared first, and then the release coat of the coated article was prepared.

[0051]

[0052] The polyvinyl butyral dispersion and the water portion of the acrylic emulsion constitute the aqueous vehicle for the release coating composition. The ingredients are mixed at high speed using a Cowles type blade until substantially dispersed / emulsified in the aqueous vehicle. After mixing, the solids ratio of polyvinyl butyral to acrylic latex compound in the release coat composition was about 55:45. The release coating composition was then coated onto the topcoat coated substrate and baked separately according to the procedure for the coated articles of Examples 1-3 above. This ...

Embodiment 7-18

[0063] The release coating compositions of Examples 7-18 were prepared according to the procedure described above for making the release coating compositions used in the coated articles of Examples 1-3. However, each of the peel coat compositions of Examples 7-18 contained 7.0% by weight propylene glycol, 0.1% by weight antifoam agent, 0.1% by weight surfactant, and 0.2% by weight dimethylolamine. The balance of each release coating composition comprised acrylic emulsion, PVB dispersion FP, and a commercially available product from Solutia, Inc., St.Louis, MO under the trade name " PVB Resin Dispersion CO24PON" second polyvinyl butyral dispersion (referred to as "PVB Dispersion CO24PON").

[0064] Table 5 lists the solid weight ratio of acrylic latex compound to polyvinyl butyral and the solid weight ratio of PVB resin FB to PVB resin CO24PON in each peel coating composition of Examples 7-18. Table 5 also lists the % NVM (measured according to ASTM D2369-98) for each of the ...

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Abstract

A composition for forming a peelable coating, the composition comprising an aqueous carrier, a water-dispersible polyvinyl butyral, and an acrylic latex compound.

Description

technical field [0001] The present invention relates to a composition for forming a protective coating. In particular, the present invention relates to a composition for forming a peelable coating that protects an underlying substrate surface. Background technique [0002] Various manufactured goods, such as vehicles and appliances, have painted metal surfaces for aesthetics. However, during storage and transportation, finished products are often subjected to one or more potentially harmful conditions, such as chemical and abrasive conditions. If left unprotected, painted surfaces of finished products may chip, be scratched, or otherwise be damaged during storage and shipping. Also, for finished products that are exposed to environmental conditions during storage and transportation, such as motor vehicles, natural elements such as rain and dust may also soil the finished product, requiring further cleaning steps. [0003] One technique for protecting painted surfaces from...

Claims

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Application Information

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IPC IPC(8): C09D5/20C09D129/14
CPCC09D5/20C09D129/14C08L33/06C08L2666/04
Inventor 杰伊·A·瑞志斯特特德·R·百思特
Owner VALSPAR SOURCING INC