MX166604B - POLYMERIC COMPOSITIONS OF ETHYLENVINYL ALCOHOL, RESISTANT TO OXIDATION - Google Patents

POLYMERIC COMPOSITIONS OF ETHYLENVINYL ALCOHOL, RESISTANT TO OXIDATION

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Publication number
MX166604B
MX166604B MX2576791A MX2576791A MX166604B MX 166604 B MX166604 B MX 166604B MX 2576791 A MX2576791 A MX 2576791A MX 2576791 A MX2576791 A MX 2576791A MX 166604 B MX166604 B MX 166604B
Authority
MX
Mexico
Prior art keywords
percent
weight
oxidation
resistant
polymeric compositions
Prior art date
Application number
MX2576791A
Other languages
Spanish (es)
Inventor
Ronald Luther Saxton
Original Assignee
Du Pont
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US07/523,506 external-priority patent/US5036464A/en
Application filed by Du Pont filed Critical Du Pont
Publication of MX166604B publication Critical patent/MX166604B/en

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Abstract

La presente invención se refiere a una composición que exhibe una estabilidad mejorada hacia la formación oxidativa de gel a temperaturas elevadas, caracterizada porque consiste esencialmente de: a) al menos un copolímero de etileno y alrededor del 90 a alrededor del 50 por ciento por peso de moléculas de alcohol vinílico, que tiene un grado de saponificación de al menos cerca del 90 por ciento; b) alrededor de 0.01 a alrededor de 0.5 por ciento por peso de al menos una sal de metal monovalente o divalente de un ácido carboxílico alifático, que tiene de 3 a 9 átomos de carbono; y c) alrededor de 0.05 a alrededor de 0.5 por ciento por peso de al menos un antioxidante fenólico impedido.The present invention relates to a composition that exhibits improved stability towards oxidative gel formation at elevated temperatures, characterized in that it consists essentially of: a) at least one ethylene copolymer and about 90 to about 50 percent by weight of vinyl alcohol molecules, which have a degree of saponification of at least about 90 percent; b) about 0.01 to about 0.5 weight percent of at least one monovalent or divalent metal salt of an aliphatic carboxylic acid, having 3 to 9 carbon atoms; and c) about 0.05 to about 0.5 percent by weight of at least one hindered phenolic antioxidant.

MX2576791A 1990-05-15 1991-05-14 POLYMERIC COMPOSITIONS OF ETHYLENVINYL ALCOHOL, RESISTANT TO OXIDATION MX166604B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/523,506 US5036464A (en) 1989-11-24 1990-05-15 Methods of detecting endoscope insertion direction

Publications (1)

Publication Number Publication Date
MX166604B true MX166604B (en) 1993-01-20

Family

ID=24085315

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2576791A MX166604B (en) 1990-05-15 1991-05-14 POLYMERIC COMPOSITIONS OF ETHYLENVINYL ALCOHOL, RESISTANT TO OXIDATION

Country Status (1)

Country Link
MX (1) MX166604B (en)

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