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Fatty amide composition for wet use chopped strand glass fibers

A fatty amide and glass fiber technology, which is applied in the field of composite roofing materials and fatty amide lubricants, can solve problems such as incompatible processing, poor tear strength, and incompatibility with asphalt, and achieve enhanced compatibility and improved tear Crack strength and enhanced mechanical properties

Inactive Publication Date: 2007-05-23
OWENS CORNING FIBERGLAS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Unfortunately, such conventional sizing compositions are generally not compatible with the bitumen used to coat the fiber mat and form the roofing slab
This incompatibility may cause processing difficulties and may result in roof panels with poor physical properties such as poor tear strength
Additionally, the amount of adhesive used in conjunction with conventional sizing compositions can add significantly to the cost of the shingle

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Example 1: Synthesis of Conventional Lubricant - Lubesize K-12

[0038] Lubesize K-12 is a conventional lubricant that is an adduct of tetraethylenepentamine (TEPA) and stearic acid. It has no unsaturation. The ingredients used to synthesize Lubesize K-12 are described in Table 1.

[0039] Weight (g)

% of total feed

stearic acid

125.00

63.98

Tetraethylenepentamine (TEPA)

46.75

23.93

Acetic acid

23.62

12.09

total

195.37

100.00

[0040] Table 2 illustrates a 1 kg feed based on the ingredients described in Table 1 .

[0041] Weight (g)

% of total feed

stearic acid

639.80

63.98

Tetraethylenepentamine (TEPA)

239.3

23.93

Acetic acid

120.9

12.09

total

1000.00

100.00

[0042] Stearic acid was added and melted at 200°F under a light blanket of nitrogen. Once all the stearic acid has...

Embodiment 2

[0045] Example 2: Synthesis of Unsaturated Fatty Amide Lubricant Containing Conjugated Diene Structure

[0046] The experiment described in Example 1 was repeated except that linoleic acid was substituted for stearic acid on an equivalent basis. The linoleic acid used was Emersol 315 linoleic acid from Cognis Corp. Before acid neutralization, the final product had a residual acid number of 0.29% and an iodine number of 24.8. The iodine value of Emersol 315 linoleic acid is 27.4. It was determined that approximately 90.5% of the unsaturation in the fatty acids remained in the synthesized product.

Embodiment 3

[0047] Example 3: Synthesis of Unsaturated Fatty Amide Lubricant Without Conjugated Diene Structure

[0048]The experiment described in Example 1 was repeated except that oleic acid was substituted for stearic acid on an equivalent basis. The oleic acid used was Emersol 213 oleic acid from Cognis Corp. Before acid adjustment, the residual acid value of the synthetic product was 0.18%, and the iodine value was 21.8. The iodine value of Emersol 213 oleic acid is 24.3. It was determined that approximately 90% of the unsaturation in the fatty acids remained in the synthesized product.

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PUM

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Abstract

A size composition containing one or more film forming agents, at least one coupling agent, and a fatty amide lubricant synthesized from a (poly)ethylene amine and a C5-C20 unsaturated fatty acid is provided. The fatty acid is preferably a conjugated fatty acid and the (poly)ethylene amine is preferably tetraethylenepentamine. The fatty amide lubricant may be modified by maleinized rubber or carboxylated rubber. The size is advantageously applied to glass fibers such as wet use chopped strand glass and used to form roofing composites, such as shingles. The fatty amide lubricant facilitates interfacial bonding between the glass and asphalt through a vulcanizing mechanism. The unsaturation of the fatty amide modifies the surface energy of the glass fibers to make the glass more compatible with the asphalt, enhances the compatibility between the glass and the asphalt, and improves glass / asphalt interactions through the reduced interfacial tensions.

Description

[0001] Technical Field and Industrial Applicability of the Invention [0002] The present invention relates generally to a sizing composition for glass fibers, and more particularly to a sizing composition for wet use chopped glass fiber strands, the composition comprising Ethylamine and unsaturated C 5 -C 20 Fatty amide lubricants synthesized from fatty acids. Also provided is a composite roofing material formed from a reinforcing fiber material sized with the sizing composition. Background of the invention [0003] Fiberglass can be used in a variety of technologies. For example, glass fibers are commonly used as reinforcements in the building composites industry because they do not shrink or stretch in response to changing atmospheric conditions. Roofing materials such as shingles, membrane roofing, and commercial roofing typically consist of a fiberglass mat, an asphalt coating on the fiber mat, and a granular surface layer embedded in the asphalt coating. [0004] To...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C25/24C03C25/26C03C25/32E04D1/20E04D1/26E04D5/02
CPCC03C25/26C03C25/246E04D5/02E04D1/20C03C25/32Y10T428/249924C03C25/25C03C25/24C03C25/28
Inventor J·H·C·李W·E·巴里克D·E·韦勒
Owner OWENS CORNING FIBERGLAS CORP
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