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US4100358A Expired / Lapsed US ⏱️ 0.0 years remaining

Ketal polycarboxylate compounds

Assignee: Monsanto Co
•
Filing: 1976-10-29
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Granted: 1978-07-11
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Expires: 1996-10-29
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Abstract

Abstract This disclosure concerns: (a) Compounds having the molecular structure represented by the formula: ##STR1## wherein M is selected from the group consisting of --H, --CH 3 , --C 2 H 5 , --NH 4 , --Na, --K and combinations thereof; R is selected from the group consisting of an alkyl radical (branched or straight chain) containing up to about C 20 , --CH(CO 2 M) 2 , and --CH 2 CO 2 M, and R' is selected from the group consisting of an alkyl radical (branched or straight chain) containing up to about C 20 , --H, and --OR; (b) a method for making the compounds of (a); (c) solid and liquid detergent compositions comprising compounds of (a), and (d) washing processes employing the compounds of (a) and/or the compositions of (c).

Inventors

  • 👤 Kent P. Lannert

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-07 10:16
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/20; C11D3/2075; C11D3/2089; C07; C07C; C07C59/00; C07C59/235; C07C59/305

Claims Analysis

Total Claims: 10
Claim 1
Independent Claim 95 words
Compounds of the molecular structure represented by the formula: ##STR20## wherein M is selected from the group consisting of --H, --CH 3 , --C 2 H 5 , --NH 4 , --Na, --K and combinations thereof; R is selected from the group consisting of an alkyl radical (branched or straight chain) containing up to about C 20 , --CH(CO 2 M) 2 , and --CH 2 CO 2 M, and R' is selected from the group consisting of an alkyl radical (branched or straight chain) containing up to about C 20 , --H, and --OR.
Claim 2
Dependent Claim 95 words
Compounds of the molecular structure represented by the formula: ##STR20## wherein M is selected from the group consisting of --H, --CH 3 , --C 2 H 5 , --NH 4 , --Na, --K and combinations thereof; R is selected from the group consisting of an alkyl radical (branched or straight chain) containing up to about C 20 , --CH(CO 2 M) 2 , and --CH 2 CO 2 M, and R' is selected from the group consisting of an alkyl radical (branched or straight chain) containing up to about C 20 , --H, and --OR.
Claim 3
Dependent Claim 20 words
The compounds of claim 1 wherein R is an alkyl radical, each M is --CH 3 and R' is H.
Claim 4
Dependent Claim 20 words
The compound of claim 1 wherein R is --CH 3 , each M is --CH 3 and R' is H.
Claim 5
Dependent Claim 24 words
The compound of claim 1 wherein R is --C 2 H 5 , each M is --C 2 H 5 and R' is H.
Claim 6
Dependent Claim 19 words
The compound of claim 1 wherein R is --CH 3 , each M is Na and R' is H.
Claim 7
Dependent Claim 21 words
The compound of claim 1 wherein R is --C 2 H 5 , each M is Na and R' is H.
Claim 8
Dependent Claim 19 words
The compound of claim 1 wherein R is --CH 3 , each M is H and R' is H.
Claim 9
Dependent Claim 21 words
The compound of claim 1 wherein R is --C 2 H 5 , each M is H and R' is H.
Claim 10
Dependent Claim 34 words
The compound of claim 1 wherein R is --CH 3 , the two upper M's are --CH 3 or --C 2 H 5 , the two lower M's are H and R' is H.

References Cited (Backward Citations)

US3970698A Cited
US3935257A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1981-07-10 1982-01-09 1982-07-11 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1985-07-10 1986-01-09 1986-07-11 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1989-07-10 1990-01-09 1990-07-11 $7700.00 Window Closed / Lapsed

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