Adhesion Composition and Textile Materials and Articles Treated Therewith

a technology of textile materials and compositions, applied in the direction of aldehyde/ketone condensation polymer adhesives, woven fabrics, tyre parts, etc., can solve the problems of inhalation of potential health hazards, loss of formaldehyde in a convection oven, and multiple health hazards of formaldehyde in traditional rfl compositions

Inactive Publication Date: 2012-08-23
LI SHULONG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0027]Further provided herein is a method for synthesizing a resorcinolic resin comprising the steps of: (a) mixing 2-furfuraldehyde with a water soluble, phenolic condensate material selected from the group consisting of a non-crosslinked phenolic condensate, a non-crosslinked resorcinol-furfuraldehyde condensate, and a phenol-formaldehyde condensate; (b) adding a base component to the mixture of step a); (c) adding a latex component to the mixture of step b); and (d) allowing the mixture to age at room temperature for at least about 8 to 24 hours.
[0028]Also provided herein is a method for synthesizing a resorcinolic resin comprising the steps of: (a) mixing 2-furfuraldehyde with a water soluble, non-crosslinked resorcinol-formaldehyde condensate material; (b) adding a base component to the mixture of step a); (c) adding a latex component to the mixture of step b); and (d) allowing the mixture to age at room temperature for at least about 8 to 24 hours.

Problems solved by technology

The presence of formaldehyde in traditional RFL compositions can present multiple health hazards.
For example, since formaldehyde is very volatile (e.g. it is a gas at room temperature), it may be undesirably emitted during the process of use, which, without proper ventilation, could be a potential health risk in inhaled.
Also, formaldehyde may be lost in a convection oven during drying at elevated temperature.
Therefore, the efficiency of a process that utilizes formaldehyde may not be optimized due to this raw material loss.
Another problem associated with the use of traditional RFL compositions is that textile materials that have been treated with these RFL compositions typically lose their flexibility and are very stiff.
Typical RFL compositions struggle to meet these flexibility requirements.
Furthermore, due to their relatively high reactivity levels, many RFL compositions are unstable at room temperature.
Certain lattices cannot be made commercial due to the short shelf life of typical RFL compositions.

Method used

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  • Adhesion Composition and Textile Materials and Articles Treated Therewith
  • Adhesion Composition and Textile Materials and Articles Treated Therewith
  • Adhesion Composition and Textile Materials and Articles Treated Therewith

Examples

Experimental program
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Effect test

example 1

[0109]In general, each formulation was made under ambient conditions according to the procedures described herein. However, furfuraldehyde-based formulations may be made and aged at slightly elevated temperature, such as from about 40° C. to about 60° C.

[0110]In a typical procedure, a small amount of base (typically NaOH and / or ammonium hydroxide) was first dissolved in a given amount of water. The phenolic condensate component (such as resorcinol-formaldehyde condensate or furfuraldehyde-resorcinol condensate) was added to the base solution under stirring until a homogeneous solution was made. The aldehyde component was slowly added to the phenolic condensate under stirring. The homogeneous solution was slowly poured into the latex component, such as vinylpyridine rubber latex, under stirring to form a mixture. The mixture was kept in a closed container at ambient temperature for about 12 to 72 hours. Other optional additives, such as antioxidants, carbon black, silica, thickeners,...

example 2

[0113]

Formulation 2IngredientAmount (parts by weight)Chemisat ® LCH 730270(hydrogenated nitrile rubber latex,Zeon Chemicals)Penacolite ® 21704.5(from Indspec Chemical Corporation)2-Furfuraldehyde0.8(from Aldrich)Water20Ammonium hydroxide, 37%1.4(from Aldrich)Paragum 1847(from Parachem)

[0114]Formulation 2 was applied to Fabric A as described herein. The treated fabric was then combined with rubber sheets for form a textile substrate-rubber composite as described herein. The peel force was measured to be about 30 lb / in for Example 2.

example 3

2-Furfuraldehyde-resorcinol Condensate

[0118]4 g of resorcinol (Aldrich) was dissolved in 11 g of water that contained 0.5 g of 50% sodium hydroxide solution. 3.9 g of 2-furfuraldehyde was then added slowly to the resorcinol-water-base solution. This mixture was heated to about 80° C. under stirring and maintained at 80° C. for about 2 hours. The mixture was then cooled to room temperature to yield a viscous solution of the condensate. This condensate was then incorporated into the following formulation:

Formulation 3IngredientAmount (grams)Condensate obtained from above13Deionized Water51.9Caustic solution (50%)0.62-furfuraldehyde2

[0119]The above mixture was added to a solution prepared from 109.6 grams of Gentac® 118 (vinyl pyridine rubber latex from Omnova Solutions Inc.) and 24 grams of water.

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Abstract

This invention relates to improved adhesion compositions and textile materials and articles treated therewith. The improved adhesion composition comprises a non-crosslinked resorcinol-formaldehyde and/or resorcinol-furfural condensate (or a phenol-formaldehyde condensate that is soluble in water), a rubber latex, and an aldehyde component such as 2-furfuraldehyde. The composition may be applied to textile substrates and used for improving the adhesion between the treated textile substrates and rubber materials. End-use articles that contain the treated textile-rubber composite include, without limitation, automobile tires, belts, and hoses as well as printing blankets.

Description

FIELD OF THE INVENTION[0001]This invention relates to improved adhesion compositions and textile materials and articles treated therewith. The improved adhesion composition comprises a non-crosslinked resorcinol-formaldehyde and / or resorcinol-furfural condensate (or a phenol-formaldehyde condensate that is soluble in water), a rubber latex, and an aldehyde component such as 2-furfuraldehyde. The composition may be applied to textile substrates and used for improving the adhesion between the treated textile substrates and rubber materials. End-use articles that contain the treated textile-rubber composite include, without limitation, automobile tires, belts, and hoses as well as printing blankets.BACKGROUND OF THE INVENTION[0002]Resorcinol formaldehyde latex (RFL) compositions have been used to treat textile substrates to enhance the substrates' adhesion to rubber-containing materials for textile reinforced rubber products such as tires, conveyor belts, transmission belts, and other ...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): B32B5/02C08L69/00C08L61/12
CPCB29D30/38B60C1/0041C08L15/005C08L21/02C08L61/06C08L61/12C08L9/10B60C2001/0066C08K5/07C08L7/02Y10T442/20C08G8/06C08G8/22C08G85/00C09D161/12C09J119/003C09J119/006C09J119/02C09J161/12C09J161/14C09J163/00
Inventor LI, SHULONG
Owner LI SHULONG
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