Anionic and other derivatives of non-ionic surfactants,...

Details Anionic and other derivatives of non-ionic surfactants,... Anionic and other derivatives of non-ionic surfactants,...

2007-10-31

2009-11-03

Szekely, Peter (Department: 1796)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

C252S182300

Reexamination Certificate

active

07612136

ABSTRACT:
An anionic surfactant concentrate and method for making includes providing compound (I) R1—OH where R1represents a branched C6-22radical with average branching of about 2-8 per radical; providing compound (II):where R2represents a C8-16radical; mixing (I) and (II); ethoxylating to obtain a reaction product; reacting with a sulfating, phosphating, or sulfitation agent to obtain R1—O—[CH2—CH2O]n-A andwhere R1represents a branched C6-22radical with average branching of about 2-8, R2represents a C8-16radical, A represents —SO3M, —PO3M, —PO3M2, —OCCH2CH(SO3Na)COO—, or HOOCCH2CH(SO3Na)COO—, M represents a positive counterion, n represents a value from 0-100, and x and y each represents a value from 0-100, where the sum of x and y represents a value of at least 1 to 100 are provided. Anionic surfactant compositions containing the concentrate and methods for stabilizing are also provided.

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Chapters 5, 9 and 10,Anionic Surfactants, ed. by H.W. Stache,Surfactant Science Series, vol. 56 (1996) (book).
Chapters 5, 9 and 10,Anionic Surfactants, ed. by H.W. Stache,Surfactant Science Series, vol. 56 (1996).

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