DE1249434B - laundry detergent - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

PATENT LETTERING

Int. CL:

Number:

File number:

Registration date:

Display day:

Issue date:

ClId

German class: 23 e - 2

P14288IV a / 23e

June 14, 1955

7th September 1967

March 28, 1968

The patent specification corresponds to the patent specification

The invention relates to detergents containing sulfonic acids salts of alkyl ethers Glycerine.

From US Pat. No. 2,094,489, sodium sulfonates of monoglyceryl alkyl ethers are of the general type formula

laundry detergent

HH H

RO - C - C

SO, well

HOH H

known that are obtained when epichlorohydrin in the presence of a catalyst such as tin dichloride, Reacts with high molecular weight alcohols and the chloroglyceryl alkyl ethers thus obtained with sodium sulfite converted into the sodium sulfonates.

If coconut fatty alcohols are used as alcohols for this reaction, which are not higher-boiling Contain alcohols, so have the monoglyceryl ether sulfonates formed even in cold Water has good washing and wetting properties. However, when used alcohols with 16 and 18 carbon atoms higher molecular weight monoglyceryl alkyl ether sulfonates are formed to dissolve them higher temperatures are required.

From the French patent 765 453 cosmetic products are known which contain neutralized "sulfonation products" of di- or polyglycols or -glyc'erinen, which are etherified, for example, with alkyl radicals with up to 16 carbon atoms. According to the description, in particular Example 2, these are not "sulphonation" but rather sulphation products, ie sulfuric acid esters.

The invention relates to a detergent which is characterized in that it is a mixture aliphatic polyglyceryl ether sulfonate of the general formula

RO

-C-H

HC- ΟΙ
HCH

Patented for:

The Procter & Gamble Company,

Cincinnati, Ohio (V. St. A.)

Representative:

Dipl.-Chem. Dr. I. Ruch, patent attorney,

Munich 5, Reichenbachstr. 51

Named as inventor:

David D. Whyte, Greenhills, Ohio;

Edwin O. Korpi, Cincinnati, Ohio (V. St. A.)

Claimed priority:

V. St. v. America June 16, 1954 (437 246) -

where R is an alkyl or alkenyl radical with 8 to 22 carbon atoms, η is an integer from 1 to 4 and X in at least one of the glyceryl groups in each molecule is a water-soluble sulfonate group, while X in the other glyceryl groups is chlorine or a hydroxyl group * wherein the mixture contains at least about 10% of an ether in which η = 2 contains.

The cation of the sulfonate group is preferably sodium, potassium, ammonium, calcium, magnesium or alkylol-substituted ammonium in which the alkyl radical contains 2 to 3 carbon atoms.

These sulfonated aliphatic polyglyceryl ether sulfonates can be prepared by an aliphatic alcohol having 8 to 22 carbon atoms in at least 105 mole percent that of the formation of monochloroglyceryl alkyl or alkenyl ethers required amount of epichlorohydrin converts and the chloroglyceryl ether thus formed is then reacted with an aqueous solution of a sulfite. The etherification of the alcohols can be achieved by using an excess of epichlorohydrin to more than 90%) i.e. practically completely carried out. The excess of epichlorohydrin is consumed by the formation of di- and triglyceryl ethers, and there is no further purification of the Chloroglyceryl ether required.

The preparation of the alkyl polyglyceryl ether sulfonates does not form the subject of the present invention. The sulfonated polyglyceryl ethers of the above general formula used according to the invention, in which R is the remainder of one of tallow, palm oil and

809 531/430

hardened whale oil obtained alcohol with 20 to 22 carbon atoms are just as soluble in water at low temperatures as those from the above-mentioned USA.-Patent 2,094,489 known sulfonated monoglyceryl ethers, which with alcohols with about 12 carbon atoms are obtained, and have both alone and in the form of a mixture with sulfonates of monoglyceryl ethers relatively low molecular weight alcohols from the middle fraction of coconut fatty alcohols and predominantly 10 and 14 carbon atoms included, good washing effect.

Even those mixtures made by reacting alcohols with 20 to 22 carbon atoms with an excess of epichlorohydrin and further reacting to obtain the product with a sulfite are readily soluble in water, which is obviously based on a synergistic effect, as the corresponding Monoglyceryl ether sulfonates are known to be very poorly soluble in water.

Even those mixtures that are obtained with such high molecular weight alcohols have still good washing performance.

The new mixtures foam very well, even without additives such as coconut amides and fatty alcohols, which are not always desirable because, for example, the fatty alcohols in water are unpleasant Develop odor.

When using fatty alcohols made from non-hydrogenated sebum in the process described above Both glyceryl alkenyl sulfonates and glyceryl alkyl ether sulfonates are obtained. Instead of Alcohols from tallow can of course also be the alcohols obtained from palm oil or hardened whale oil be used.

Oxo alcohols can also be used in place of the fatty alcohols, which are obtained by reacting Carbon monoxide and hydrogen can be obtained with olefins. The relatively straight-chain ones Oxo alcohols behave somewhat like the corresponding fatty alcohols. The oxo alcohols with branched On the other hand, chains are so different from one another that their suitability for the production of the Detergent of the invention must be determined by preliminary experiment.

It has also been found that the lauryl and myristyl diglyceryl ether disulfonates, ie the diglyceryl ether disulfonates of C ₁₂ and C ₁₄ alcohols, are just as active in washing as the monoglyceryl monosulfonates.

The following are two examples of compositions of detergents according to the invention given:

The Alkylglyceryläthersulfonat was according to the method described above using a 15 ° / _o by weight excess of epichlorohydrin and a middle fraction of Kokosnußalkoholen with the composition

^z / ο * -ίο>

66% C ₁₂ ,

23 / ο C ₁₄ ,

9% C ₁₆

and sulfonating the resulting mixture.

Example 2

15% alkyl glyceryl ether sulfonate,
25% sodium tripolyphosphate,

6% solid silicates,

The remainder is sodium sulphate, water and smaller amounts of other ingredients.

The Alkylglyceryläthersulfonat this detergent was after the method described above Use of a 10% excess of epichlorohydrin and a medium fraction of coconut alcohols and sulfonating the mixture obtained by this reaction.

Claims (2)

Patent claims: 1. Detergent, characterized by a content of a mixture of aliphatic Polyglyceryl ether sulfonates of the general formula example 1 55 7.9% alkyl glyceryl ether sulfonate,
9.6% tallow alkyl sulfate,
6.0% solid silicates,
50.0% sodium tripolyphosphate,
8.0% water, The remainder is sodium sulphate and small amounts of other ingredients. . ■ H - C - H - I.
RO HC — O— H- HCH
X where R is an alkyl or alkenyl radical with 8 to 22 carbon atoms, η is an integer from 1 to 4 and X in at least one of the glyceryl groups in each molecule is a water-soluble sulfonate group, while X in the other glyceryl groups is chlorine or a hydroxyl group, where the Mixture contains at least about 10% of an ether in which η = 2 . 2. Detergent according to claim 1, characterized in that the cation of the sulfonate group Sodium, potassium, ammonium, calcium, magnesium or alkylol-substituted ammonium, wherein the alkyl radical contains 2 to 3 carbon atoms. Considered publications:
Austrian patent specification No. 138 399. 709 640/523 8.67 © Bundesdruckerei Berlin