Biodegradable composition for detecting surface discontinuities专利检索-脂肪酸甲酯生物柴油生物燃料燃料燃料种类专利检索查询-专利查询网

Biodegradable composition for detecting surface discontinuities

阅读：895发布：2023-11-13

专利汇可以提供Biodegradable composition for detecting surface discontinuities专利检索，专利查询，专利分析的服务。并且A water washable, non-gelling colored liquid penetrant consisting essentially of a methyl ester of a fatty acid, a nonionic surfactant and a fluorescent dye, the methyl ester and the nonionic surfactant used being readily biodegradable and thereby rendering the penetrant as a whole non-polluting when subjected, without prior treatment, to the consuming action of microorganisms.，下面是Biodegradable composition for detecting surface discontinuities专利的具体信息内容。

权利要求

1. A liquid penetrant testing composition for the detection of surface discontinuities in work pieces, consisting essentially of a major amount of a methyl ester of a fatty acid containing between 16 and 24 C-atoms, a minor amount of a nonionic, biodegradable, water-soluble surfactant and a fluorescent dye dissolved therein, the resultant liquid penetrant composition being water washable and non-gel-forming upon the addition of water, said surfactant being selected from the group consisting of polyethoxylates of (1) secondary linear alcohols having a hydrophobic carbon chain of 13 to 17 C-atoms and (2) phenols selected from the group consisting of nonyl and octyl phenol, and said dye being present in a quantity sufficient to give color indication at said surface discontinuities when excess penetrant composition is water-washed from the work pieces, group (1) containing 8 or 9 oxyethylene and group (2) containing at least 10 oxyethylene units per molecule.

2. A composition as defined by claim 1, wherein methyl ester is an ester of fatty acids contained in lard.

3. A composition as defined in claim 1, wherein said methyl ester is a methyl ester of a fatty acid having from 16 to 18 C-atoms, both inclusive, said methyl ester having a viscosity at 100* F. (SUS) of approximately 47, a flash point of from 325* to 350* F. and a surface tension of about 28 dynes.

4. A composition as defined in claim 1, wherein said composition has the following ingredients within the ranges of parts by weight that are indicated: Ingredient Parts by weight nonionic surfactant 7 to 30 methyl ester of a fatty acid 50 to 75 fluorescent dye q.s.

5. A composition as defined in claim 1, wherein said composition has the following ingredients in approximately the parts by weight indicated: Ingredient Parts by Weight nonionic surfactant 25 methyl ester of a C16-C24 70 fatty acid a glycol coupler 5 fluorescent dye q.s.

6. A composition as defined in claim 4, wherein said nonionic surfactant is a mixture of ethoxylates of isomeric secondary linear alcohols.

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