Polyoxyalkylene surfactants

• US 6,093,856 A
• Filed: 10/13/1998
• Issued: 07/25/2000
• Est. Priority Date: 11/26/1996
• Status: Expired due to Term

• Current Assignee: The Procter & Gamble Company
• Original Assignee: The Procter & Gamble Company
• Inventors: Vinson, Phillip Kyle, Burckett-St. Laurent, James Charles Theophile Roger, Connor, Daniel Stedman, Cripe, Thomas Anthony, Willman, Kenneth William
• Primary Examiner(s): Gupta, Yogendra
• Assistant Examiner(s): Ingersoll, Christine E.
• Application Number:
  US09/170,424
• Time in Patent Office: 651 Days
• Field of Search: 510/506, 510/505, 510/421, 510/422, 510/413, 510/356, 252/FOR 242, 252/FOR 243, 568/625, 568/622
• US Class Current: 568/625
• CPC Class Codes: C07C 43/11 Polyethers containing —O—(C—C—O—)n units with ≤ 2 n≤ 10
• CPC Class Codes: C11D 1/72 Ethers of polyoxyalkylene glycols
• CPC Class Codes: C11D 1/722 Ethers of polyoxyalkylene glycols having mixed oxyalkylene groups; Polyalkoxylated fatty alcohols or polyalkoxylated alkylaryl alcohols with mixed oxyalkylele groups C11D1/721 takes precedence

Abstract

Mid-chain branched primary alkyl polyoxyalkylene surfactants useful in laundry and cleaning compositions, especially granular and liquid detergent compositions. These surfactants are also suitable for formulation with other surfactants for the purpose of providing improved surfactant systems, especially for use in detergent compositions which will be used in laundry processes involving low water temperature wash conditions. The present invention also relates to novel mid-chain branched primary alkyl polyoxyalkylene surfactants suitable for use in the surfactant mixtures.

Claims

1. A mid-chain di-methyl branched alkyl polyoxyalkylene compound of the formula:

##STR35## wherein;

d and e are integers and d+e is 10 or 11; and

wherein further

when d+e=10, d is an integer from 2 to 9 and e is an integer from 1 to 8;

when d+e=11, d is an integer from 2 to 10 and e is an integer from 1 to 9;

and EO/PO are alkoxy moieties selected from the group consisting of ethoxy, propoxy, and mixed ethoxy/propoxy groups, wherein m is within the range of from about 5 to about 15, and mixtures of said compounds.

2. A dimethyl branched primary alkyl ethoxylate according to claim 1 which is a member selected from the group consisting of:

2,3-dimethyl tetradecanol ethoxylate, 2,4-dimethyl tetradecanol ethoxylate, 2,5-dimethyl tetradecanol ethoxylate, 2,6-dimethyl tetradecanol ethoxylate, 2,7-dimethyl tetradecanol ethoxylate, 2,8-dimethyl tetradecanol ethoxylate, 2,9-dimethyl tetradecanol ethoxylate, 2,10-dimethyl tetradecanol ethoxylate, 2,11-dimethyl tetradecanol ethoxylate, 2,12-dimethyl tetradecanol ethoxylate, 2,3-dimethyl pentadecanol ethoxylate, 2,4-dimethyl pentadecanol ethoxylate, 2,5-dimethyl pentadecanol ethoxylate, 2,6-dimethyl pentadecanol ethoxylate, 2,7-dimethyl pentadecanol ethoxylate, 2,8-dimethyl pentadecanol ethoxylate, 2,9-dimethyl pentadecanol ethoxylate, 2,10-dimethyl pentadecanol ethoxylate, 2,11-dimethyl pentadecanol ethoxylate, 2,12-dimethyl pentadecanol ethoxylate, and 2,13-dimethyl pentadecanol ethoxylate, ethoxylated with an average degree of ethoxylation of from about 5 to about 15.