Use of polyoxypropylene/polyoxyethylene terpene compounds as degreasing agents for hard surfaces
OwnerJean-Luc Joye, Jean-Guy Le Hellocoinventors
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Abstract
The invention concerns the use in degreasing/cleansing applications of hard surfaces, such as metal surfaces, of at least a compound derived from a terpene and comprising a number of oxypropylene units ranging between 3 and 5, and a number of oxyethylene units ranging between 6 and 10, exclusively. The compound is provided with a concentration lower than 10 g/l, more particularly between 0.01 and 5 g/l, when used.
Claims11
1-13. (canceled)
A process for degreasing a hard metal surface, comprising the step of using an aqueous medium comprising at least one compound employed in a concentration of from 0.01 to 10 g/l, having the following formula (I):
- Z-X—[CH(R3)—CH(R4)—O]n—[CH2CH2—O]p—R5 (I)
- wherein:
- Z represents a group having the following formula:
- Wherein:
- X represents —CH2—CH2—O—,
- R3 and R4, which are identical or different, represent hydrogen or a methyl group, provided that at least one of groups R3 or R4 is other than hydrogen,
- R5 represents hydrogen,
- n is an integer or a fractional number from 3 to 5 inclusive, and
- p is an integer or a fractional number from 6 to 10, limits excluded.
A process for degreasing a hard metal surface, comprising the step of using an aqueous medium comprising at least one compound employed in a concentration of from 0.01 to 10 g/l, having the following formula (I):
- Z-X—[CH(R3)—CH(R4)—O]n—[CH2CH2—O]p—R5 (I)
- wherein:
- Z represents a group having the following formula:
- wherein:
- X represents —CH2—CH2—O—,
- R3 and R4, which are identical or different, represent hydrogen or a methyl group, provided that at least one of groups R3 or R4 is other than hydrogen,
- R5 represents hydrogen,
- n is an integer or a fractional number from 4 to 5 inclusive, and
- p is an integer or a fractional number from 6.3 to 7, limits included.
Dependencies are inferred from the claim text.