Asphalt-based coating compositions and salt surfactants

A technology of surfactant and composition, applied in the field of asphalt-based coating composition, can solve problems such as viscosity loss and failure, and achieve the effect of low cost and excellent fluidity

Inactive Publication Date: 2007-08-01
AIR PROD & CHEM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The inability of surfactants to wet and disperse a wide range of components will result in loss of viscosity and cause premature failure of the composition

Method used

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  • Asphalt-based coating compositions and salt surfactants
  • Asphalt-based coating compositions and salt surfactants
  • Asphalt-based coating compositions and salt surfactants

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0101] Preparation of Exemplary Compositions

[0102] The preparation of the coating compositions of the present invention will vary somewhat depending on the particular components used in the composition, the type of mixing equipment available for handling the components and the intended use. These process steps are not critical, and some of the blending procedures described herein are preferred, although they may vary considerably.

[0103] A representative propoxylated alcohol based ether amine precursor for the salt shown in formula II is from C 12 -C 15 Monoamines derived from propylene oxide adducts of alcohols. In methods well known to those skilled in the art, C 12 -C 15 Alcohol reacts with propylene oxide. The hydroxyl group of the alcohol reacts with propylene oxide to form the monoether of propylene oxide. Addition of 2-4 moles of propylene oxide per mole of alcohol produces di-, tri- and poly(propylene glycol) ethers. During the subsequent cyanoethylation, t...

Embodiment 1-6

[0116] Embodiment 1-6-basic formula

[0117] Examples 1-6 describe exemplary asphalt-based roof coating compositions. Examples 1-6 all included unoxidized pitch, palygorskite clay, and a propoxylated alcohol based ether amine salt surfactant. Other components are not included.

[0118] Examples 1-4 include comparative industry standard roof coating compositions based on Tomah Products PA-14 acetate surfactant. This industry standard roof coating composition includes unoxidized Henry Company cutback bitumen, Minugul G-35 palygorskite clay, and Tomah Products PA-14 acetate surfactant (isodecyloxypropylamine acetate surfactant) . Industry standard compositions are provided in said Examples 1-4 at C / S ratios of 8:1 and 12:1.

[0119] Each asphalt-based coating composition and standard composition was prepared using the low shear blending technique described above. In each example, 350 g samples were prepared as described in Table 1 at clay / surfactant ratios of 8:1, 12:1 and...

Embodiment 1

[0129] Example 1 included three asphalt-based roof coating compositions. The roof coating composition of Example 1 included unoxidized bitumen, palygorskite clay, and Neodol 25 alcohol-based 25-P1-PA acetate surfactant component. Neodol 25-P1-PA is a propoxylated alcohol-based etheramine according to formula II. Neodol 25-P1-PA in R 1 The position contains the distribution of carbon atoms. R 1 is an aliphatic group having about 12 to 15 carbon atoms, m is 1 and R 2 For n-propyl. Neodol 25-P1-PA was completely neutralized (ie about 100% neutralization) with about 1 molar equivalent of acetic acid. A roof coating composition comprising the industry standard PA-14 acetate surfactant was included, thereby providing a basis for comparison.

[0130] Table 3 provides viscosity data 4 weeks after preparation. Figure 1 graphically presents the viscosity data for each example over a four week period. The data are given in centipoise (cP) units.

[0131] table 3

[0132] ...

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Abstract

Asphalt-based coating compositions and surfactants. The asphalt-based coating compositions have improved performance and comprise asphalt, clay, and a propoxylated alcohol-based ether amine salt surfactant.

Description

[0001] technical field [0002] This field is coatings and more specifically bituminous based coating compositions including salt surfactants. Background technique [0003] Bitumen-based coating compositions are used in a wide range of applications where it is desired to construct, coat, patch, join, fill and repair a wide variety of articles and objects. Exemplary applications of bitumen-based coating compositions include use in roofing and repairing, road construction and repair, and as durable, protective coatings for architectural, surface, and mechanical and electronic applications. [0004] Bitumen-based coating compositions serve both the industrial and consumer markets. Coating compositions for these separate markets are often formulated with different base components. Consumer market coating compositions typically include as base components a blend of asphalt cutback, clay and surfactants. The cutback component is provided as a binder. The clay component viscosifi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D195/00C09D7/12C09K23/46
CPCY10S516/916C08L95/00C08L2666/72C09D1/10C09D1/00C09D5/00
Inventor D·K·莫斯J·A·克罗
Owner AIR PROD & CHEM INC
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