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Novel coupled uracil compound for vinyl chloride polymer resins

a technology of vinyl chloride and compound, applied in the field of new coupled 6amino uracil derivative, can solve the problems of halogen containing polymers degrading or deteriorating when processed, halide acid generated by the polymer attacking the components of processing equipment, and halogen containing polymers tend to degrade or deteriorate when processed

Inactive Publication Date: 2017-11-02
LUBRIZOL ADVANCED MATERIALS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent text describes a new chemical compound called a coupled uracil that can be used as a stabilizer for halogenated polymer compounds, such as CPVC. This chemical compound is cost-effective and efficient in stabilizing these compounds. The technology also provides a method for stabilizing rigid halogenated polymer compounds by using the 6-amino coupled uracil derivative.

Problems solved by technology

Halogen containing polymers tend to degrade or deteriorate when processed.
Therefore, there is a risk that during the processing these halogen containing polymers will degrade.
When such polymers degrade, it is believed that the halide acid generated by the polymer attacks the components of the processing equipment.
However, heavy metal stabilizers are becoming disfavored as heat stabilizers for halogenated polymers due to environmental concerns.
The patent does not teach or exemplify a coupled uracil, or any compound formulation including CPVC.
The patent does not teach or exemplify a coupled uracil, or any formulation containing CPVC.
The patent does not teach or exemplify a coupled uracil, or any formulation containing CPVC.

Method used

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  • Novel coupled uracil compound for vinyl chloride polymer resins
  • Novel coupled uracil compound for vinyl chloride polymer resins
  • Novel coupled uracil compound for vinyl chloride polymer resins

Examples

Experimental program
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examples

[0093]Sample 1—A commercially available compound of 6-amino-1,3-dimethyluracil, available from Sigma-Aldrich

[0094]Sample 2—Comparative dimer compound from Example 1 of U.S. Pat. No. 6,156,830, having a connection through a ring carbon

[0095]Sample 3—Comparative mono-functional alkylated Uracil derivative compound

[0096]Sample 4—Representative di-functional compound

examples 1 to 7

[0097]The samples were each compounded into a CPVC composition in an amount to achieve an equivalent or increased level of nitrogen compared to a 0.25 phr treat of sample 6 at control amount of Nitrogen (i.e., 1×N). The recipes for each example are shown in Table 1 below.

TABLE 1Ingredient13234567CPVC1  100 phr  100 phr  100 phr  100 phr  100 phr  100 phr  100 phrSample 1 0.25 phr(1.26xN)Sample 2 0.25 phr(1.22xN)Sample 3 0.41 phr 0.62 phr 0.99 phr(1xN)(1.5xN)(2.25xN)Sample 4 0.25 phr  0.4 phr(1xN)(1.5xN)Additive15.515 phr16.015 phr16.015 phr16.015 phr16.015 phr16.015 phr16.015 phrPackage2166.25 Cl % 0.92 inherent viscosity.27 phr impact modifier, 4 phr coated titanium dioxide, 1.5 phr type A zeolite, 1.0 phr disodium sebacate, 2.25 phr lubricant, 0.25 phr antioxidant, 0.015 phr yellow dye.3example 1 has 2.0 phr type A zeolite and no disodium sebacate.

[0098]Color chips of each example compound were prepared using a Brabender DTS mixing unit having a counter rotating batch mixing bowl....

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Abstract

The disclosed technology relates to a novel coupled 6-amino uracil derivative, and the use of the coupled 6-amino uracil derivative as a stabilizer in halogen containing polymer compounds. In particular, the disclosed technology relates to the use of a coupled 6-amino uracil derivative as a stabilizer in vinyl chloride compounds, such as, for example, chlorinated polyvinyl chloride (CPVC) compounds.

Description

BACKGROUND OF THE INVENTION[0001]The disclosed technology relates to a novel coupled 6-amino uracil derivative, and the use of the coupled 6-amino uracil derivative as a stabilizer in halogen containing polymer compounds. In particular, the disclosed technology relates to the use of a coupled 6-amino uracil derivative as a stabilizer in vinyl chloride compounds, such as, for example, chlorinated polyvinyl chloride (CPVC) compounds.[0002]Halogen containing polymers tend to degrade or deteriorate when processed. Generally, the difference between the processing temperature and the degradation temperature is very small. Therefore, there is a risk that during the processing these halogen containing polymers will degrade. When such polymers degrade, it is believed that the halide acid generated by the polymer attacks the components of the processing equipment. Also, this acid further catalyzes de-hydro-halogenation reactions, such as HCl elimination, and additional degradation of the poly...

Claims

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Application Information

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IPC IPC(8): C08K5/3462C08K5/098C08K3/34F16L9/12C07D239/545
CPCC08K5/3462C08K5/098F16L9/12C07D239/545C08K3/34C08L27/24C08K2003/2241C08L2203/18C08L2205/03C08L55/02C08L91/06C08K13/02C08K5/1345C08K3/22C08K3/04
Inventor COX, ADAMPROUST, NICOLASHANTHORN, JASON J.NIE, LI
Owner LUBRIZOL ADVANCED MATERIALS INC
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