US4623743A
Expired / Lapsed
US
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Phosphoric esters and method for preparing the same
Assignee: Kao Corp
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Filing: 1985-02-11
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Granted: 1986-11-18
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Expires: 2005-02-11
Abstract
Abstract A phosphoric ester of the following formula (I): ##STR1## in which R 1 represents a saturated or unsaturated, linear or branched and substituted or unsubstituted hydrocarbon group having from 8 to 32 carbon atoms, R 2 , R 3 and R 4 are the same or different and represent a saturated or unsaturated hydrocarbon group having from 1 to 4 carbon atoms, R 5 represents a hydrogen atom, a saturated or unsaturated hydrocarbon group having from 1 to 4 carbon atoms, and n is an integer of from 0 to 50. The above novel phosphoric acid ester has excellent detergent performance with very low irritations to living body. A manufacturing method of the ester is also disclosed. According to the method, the ester can be prepared from inexpensive, readily available starting materials by a simple procedure in high purity and high yield.
Inventors
- 👤 Tomihiro Kurosaki
- 👤 Mitsuharu Masuda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:24
CPC Classifications
C; C09; C09K; C09K23/00; C09K23/14; A; A61; A61K; A61K8/00; A61K8/02; A61K8/04; A61K8/06; A61K8/18; A61K8/30; A61K8/55; A61Q; A61Q19/00; A61Q19/10; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/08; C07F9/09; C07F9/091; A61K2800/00; A61K2800/74; A61K2800/75
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
91 words
A phosphoric ester of the following general formula (I) ##STR8## which R 1 represents a saturated or unsaturated, linear or branched and substituted or unsubstituted hydrocarbon group having from 8 to 32 carbon atoms, R 2 , R 3 and R 4 are the same or different and represent a saturated or unsaturated hydrocarbon group having from 1 to 4 carbon atoms, R 5 represents a hydrogen atom a saturated or unsaturated hydrocarbon group having from 1 to 4 carbon atoms, and n is an integer of from 0 to 56.5.
Claim 2
Dependent Claim
91 words
A phosphoric ester of the following general formula (I) ##STR8## which R 1 represents a saturated or unsaturated, linear or branched and substituted or unsubstituted hydrocarbon group having from 8 to 32 carbon atoms, R 2 , R 3 and R 4 are the same or different and represent a saturated or unsaturated hydrocarbon group having from 1 to 4 carbon atoms, R 5 represents a hydrogen atom a saturated or unsaturated hydrocarbon group having from 1 to 4 carbon atoms, and n is an integer of from 0 to 56.5.
Claim 3
Dependent Claim
163 words
Method for preparing a phosphoric acid of the general formula (I) ##STR9## in which R 1 represents a hydrogen atom a saturated or unsaturated, liner or branched and substituted or unsubstituted hydrocarbon group having from 8 to 32 carbon atoms, R 2 , R 3 and R 4 are the same or different and represents a saturated or unsaturated hydrocarbon group having from 1 to 4 carbon atoms, R 5 represents a saturated or unsaturated hydrocarbon group having from 1 to 4 carbon atoms, and n is an integer of from 0 to 56.5, characterized by interacting a phosphoric monoester of the general formula (II) ##STR10## in which R 1 , R 5 and n have the same meanings as defined above, respectively, and M represents an alkali metal, and a glycidyl trialkylammonium salt of the general formula (III) ##STR11## in which R 2 , R 3 and R 4 have, respectively, the same meanings as defined above, and X represents an anion.
Claim 4
Dependent Claim
163 words
Method for preparing a phosphoric acid of the general formula (I) ##STR9## in which R 1 represents a hydrogen atom a saturated or unsaturated, liner or branched and substituted or unsubstituted hydrocarbon group having from 8 to 32 carbon atoms, R 2 , R 3 and R 4 are the same or different and represents a saturated or unsaturated hydrocarbon group having from 1 to 4 carbon atoms, R 5 represents a saturated or unsaturated hydrocarbon group having from 1 to 4 carbon atoms, and n is an integer of from 0 to 56.5, characterized by interacting a phosphoric monoester of the general formula (II) ##STR10## in which R 1 , R 5 and n have the same meanings as defined above, respectively, and M represents an alkali metal, and a glycidyl trialkylammonium salt of the general formula (III) ##STR11## in which R 2 , R 3 and R 4 have, respectively, the same meanings as defined above, and X represents an anion.
References Cited (Backward Citations)
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| 3.5 Years (Year 4) | 1989-11-17 | 1990-05-19 | 1990-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-11-17 | 1994-05-19 | 1994-11-18 | $3760.00 | Window Closed / Lapsed |
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