AU644732B2

AU644732B2 - Bleach or bleaching detergent composition

Info

Publication number: AU644732B2
Application number: AU15233/92A
Authority: AU
Inventors: Muneo Aoyagi; Youhei Kaneko; Konomi Mino; Nobuyuki Ogura; Kohshiro Sotoya
Original assignee: Kao Corp
Current assignee: Kao Corp
Priority date: 1991-05-09
Filing date: 1992-04-29
Publication date: 1993-12-16
Anticipated expiration: 2012-04-29
Also published as: JPH04332796A; EP0512533A3; EP0512533A2; AU1523392A; JP2908589B2

Description

AUSTRALIA

PATENTS ACT 1990 COMPLETE SPECIFICATION NAME OF APPLICANT(S): Kao Corporation ADDRESS FOR SERVICE: DAVIES COLLISON CAVE Patent Attorneyt' I Little Collins Street, Melbourne, 3000.

INVENTION TITLE: Bleach or bleaching detergent composition The following statement is a full description of this invention, including the best method of performing it known to me/us:- S. S

SS

55..

*S

*S S *5 *5 S S* Background of the Invention Field of the Invention The present invention relates to a bleach or bleaching detergent composition containing a bleach activator having a cationic group.

Description of the Related Art A chlorinated bleaching agent has disadvantages in that the fibers to which it is applicable are limited, it is not applicable to colored or patterned soft goods, materials, cloths, fabrics and the like, and that it has a peculiar odor, so that an oxygenic bleaching agent free from these disadvantages has recently been used widely.

As such an oxygenic bleaching agent, sodium percarbonate and sodium perborate are particularly utilized from the standpoint of bleaching performance and stability.

However, the bleaching power of the oxygenic bleaching agent is poorer than that of a chlorinated bleaching agent, so that various bleach activators have been used together therewith.

Although tetraacetyl ethylene diamine (TAED), acetoxybenzene sulfonic acid salts, tetraacetyl laglycoluril and glucose pentaacetate have been representatively used as the bleach activator, they are still insufficient in bleach activating effects.

The present inventors previously found that a compound which reacts with hydrogen peroxide to form an organic peracid having a cationic group is excellent as a bleach activator (see U. S. Patent Nos.

4,933,103 and 5,059,344, and European Patent Publication-A Nos. 371809 and 403152).

For instance, European Patent Publication-A No.

403152 and- T S. Patent Applicat.ion N. 334 mentions a bleach activator represented by the following formula; CHg

C

8

HINH-C-CH

2 -N (CH 2 3C0- S3 to a

I

0 CH3 9** However, when a bleach or bleaching detergent composition containing such a compound which can form 9 an organic peracid having a cationic group is applied to colored or patterned soft goods, materials, cloths, fabrics and the like, the discoloration of the soft goods, etc. cannot be acceptably inhibited, though the compound is excellent in bleach activating performance.

2 Disclosure of the Invention Summary of the Invention Under these circumstances, the object of the present invention is to provide a bleach or bleaching detergent composition which is excellent in bleach activating performance and which hardly discolors colored or patterned soft goods, materials, cloths, fabrics and the like.

The present inventors have extensively studied to solve the above-mentioned problems and have found that a composition which comprises hydrogen peroxide or a peroxide which liberates hydrogen peroxide in an aqueous solution thereof and compounds represented Srespectively by the following general formulae and (II) at a specified ratio solves the aforementioned problems: 1 0 Rc 0 S0 g I I I R C- N H N (I)

R

3 in which R 1 is, either a straight- or branchedchain, substituted or unsubstituted, alkyl having 1 to 20 carbon atcoms or alkenyl having 2 to carbon atoms, R 2 and R 3 are, each independently, an alkyl having 1 to 3 carbon atoms and A and B 3 are, each independently, either a straight- or branched-chain, substituted or unsubstituted, alkylene having 2 to 20 carbon atoms, and 0 Rz R'-C-NH-A-N (II)

R

3 in which R 1

R

2

R

3 and A are defined above.

The present invention has been accomplished on the basis of this finding.

Namely, the present invention provides a bleach *0 00 or bleaching detergent composition which comprises or essentially consists of: hydrogen peroxide or a peroxide which liberates hydrogen peroxide in an aqueous solution thereof, a quaternary ammonium compound having the general formula *0 0 RZ 0 SO3 R'-C-NH-A-N--B-C -O (I)

R

3 in which R 1 is, either a straight- or branchedchain, sutstituted or unsubstituted, alkyl having 1 to 20 carbon atoms or alkenyl having 2 to 4 carbon atoms, R 2 and R 3 are, each independently, an alkyl having 1 to 3 carbon atoms and A and B are, each independently, either a straight- or branched-chain, substituted or unsubstituted, alkylene having 2 to 20 carbon atoms, and an amide derivative having the general formula

(II);

0 Rz R'-C-NH-A-N/ (II) in which R 1

R

2

R

3 and.A are defined above, wherein the weight ratio of is in the range of from 100/0.01 to 100/5.

SR

1 in the formulae and (II) is, preferably, either a straight- or branched-chain, alkyl having 1 to 20 carbon atoms and having at least one substituent selected from the group consisting of a hydroxyl group and a halogen atom or alkenyl having 2 to 20 carbon o catoms and having at least one substituent selected from the group consisting of a hydroxyl group and a halogen atom.

When R 1 in the formulae and (II) is alkyl, it is preferably, either a straight- or branched-chain, 5 1 T alkyl having 1 to 9 carbon atoms.

When R 1 in the formulae and (II) is alkenyl, it is preferably a straight-chain alkenyl having 1 to 17 carbon atoms.

A and B in the formulae and (II) are preferably, each independently, a straight-chain alkylene having 2 to 10 carbon atoms.

The molar ratio of component (a)/component is in the range of preferably from 99.9/0.1 to 20/80, and more preferably from 99/1 to 50/50.

The-meoan ratio of component (b)/component is in the range of preferably from 100/0.1 to 100/4.

0.

The composition may further comprise at least one component selected from the group consisting of a bleach activator other than component a surfactant, a divalent metal ion-sequestering agent, an alkaline agent, an inorganic electrolyte, an antiredeposition agent, an enzyme, a fluorescent dye, o a stabilizer for the peroxide, a perfume and a coloring matter in their respective effective amounts.

Further scope and the applicability of the present invention will become apparent from the detailed description given hereinafter. However, it should be understood that the detailed description and specific examples, while indicating preferred embodiments of the invention, are given by way of illustration only, since various changes and modifications within th- spirit and scope of the invention will become apparent to those skilled in the art from this detailed description.

Detailed Description of the Invention Component according to the present invention is either hydrogen peroxide or a peroxide which can generate hydrogen peroxide in an aqueous solution Sthereof. Examples of the latter include sodium percarbonate, sodium tripolyphosphate/hydrogen peroxide adduct, sodium pyrophosphate/hydrogen peroxide adduct, urea/hydrogen peroxide adduct, 4Na 2

SO

4 2H 2 0 2 NaCI, sodium perborate monohydrate, sodium perborate tetrahydrate, sodium peroxide and potassium peroxide, among which sodium percarbonate, sodium perborate monohydrate and sodium perborate tetrahydrate are preferable.

Component according to the present invention *too is a quaternary ammonium compouhd represented by the general formula and examples thereof include the folloing c nds: following compounds: 7 D Cila II ItI~ Cb) 1i 0 CHI1 c) 11 I

S

Co IV 0 *0 I (d C84-HC -7I--H C2)1-4 C2 CO4 O 46 Cu 3 0 CR 3 S0 Cd CH -R C1 1 -a-N (C C 0 N (C 2

I

When teecmons thtIcomond a)t fo xmlae ytGi ,aniogncsl suc asa4laimtlhldeada moimhld or an organic salt such as a quaternary ammonium halide is generally formed as a by-product. The bleaching or bleaching detergent composition of the present invention may contain at least one of the above-mentioned inorganic salt and the above-mentioned organic salt in such an amount that it does not hinder the object of the present invention.

The molar ratio of component to component (b) is preferably in the range of from 99.9 0,1 to 20 and still more preferably from 99 1 to 50 Component according to the present invention is an amide derivative represented by the general formula (II) and examples thereof include the following compounds: 0 CH3 I CH3

I/

IC

CI**

*C

(ii) C7HI S-C-NH -(C2 -a-N

CHC

9 0 0113 (ii)C 4 H?-C1 C- NH (112), 4- 0ZI

CH

3 (iv) C8H1 7 -CH=CH-C7'Hi 4 -C-NH- (CH2) 0113 0 (z H I **Nl CH 3 I2 IntepCen neton ti)ecsayta co**et (c.sue na mun ffo .1t win o the compentonention), t discessraryo tha :~coflopf~rd (o is us.-ed sof an ds amouteromls 0.01tos, Sc~faricsanbcasde the liei lamount ofl copot sufficientlY ii~hibited, while when it exceeds 5 parts by weight, bleaching pqrformance will be hindere~d.

10 The bleach or bleaching detergent composition of the present invention may contain a bleach activator other than component and additives which are ordinarily added to a bleach or bleaching detergent composition, in addition to the above essential components and Examples of such additives are as follows: bleach activators other than component (b) tetraacetyl ethylene diamine (TAED), acetoxybenzene sulfonic acid salts, tetraacetyl glycolyl uril, glucose pentaacetate and a compound which reacts with hydrogen peroxide to form an organic peracid i having a cationic group (see Japanese Patent Laid-Open Nos, 315666/1988 and 141i698/1990 and Japanese Patent Applicatiof No. 150758/1989).

surfactants salts of alkyl (a straight chain or branched) benzeesulfonic acids or alkyl (A straight chain or branched) benzenesulfonates wherein the alkyl group has 10 to 16 carbon atoms on average.

ethylene oxide, propylene oxide or butylene oxide adducts of salts of alkyl or alkenyl ether sulfates, or, ethylIne oxide and propylene oxide or butylene oxide adoucts, at a molar ratio of ethylene oxide propylene oxide or butylene oxide ranging 0.1 9.9 to 11 9.9 0.1, of salts of alkyl or alkenyl ether sulfates, wherein the adducts have 0.5 to 8 the abovedescribed alkylene oxide units per molecule on average and the alkyl or alkenyl group is a straight chain or branched and has 10 to 20 carbon atoms on average.

salts of alkyl- or alkenyl-sulfuric acids, or, alkyl- or alkenyl-sulfates wherein the alkyl or alkenyl group has 10 to 20 carbon atoms on average.

salts of olefin (or alkene) sulfonic acids or olefin sulfgnates wherein 10 to 20 carbon atoms are contained per molecule on average.

salts of alkanesulfonic acids or alkanesulfonates wherein 10 to 20 carbon atoms are contained per molecule on average.

salts of saturated or unsaturated fatty acids wherein 10 to 24 carbon atoms are contained per molecule on average.

ethylene oxide, propylene oxide or butylene oxide adducts of alkyl or alkenyl ether carboxylic acid salts, or, ethylene oxide and propylene oxide or butylene oxide adducts, at a molar ratio of ethylene oxide propylene oxide or butylene oxide ranging 0.1 9.9 to 9.9 0.1, of alkyl or alkenyl ether carboxylic acid salts, wherein the adducts have 0.5 to 8 the above-described alkylene oxide units per 12 molecule on average and the alkyl or alkenyl group has to 20 carbon atoms on average.

salts and esters of a-sulfo fatty acids represented by the following formula: R' -CCOzY

I

SOaZ wherein Y represents an alkyl group having 1 to 3 carbon atoms or a counter ion; Z represents a counter ion; and R 10 represents an alkyl or alkenyl group having 10 to 20 carbon atoms.

The counter ion constituting the above anionic surfactant includes ions of alkali metals such as sodium and potassium.

polyoxyethylene alkyl or alkenyl ethers wherein the alkyl or alkenyl group has 10 to 20 carbon atoms on average and the polyoxyethylene moiety is derived from 1 to 30 cthylene oxide molecules on average.

(10) polyoxyethylene alkylphenyl ethers wherein the n el alkyl group has 6 to 12 carbon atoms on average and the polyoxyethylene moiety is derived from 1 to ethylene oxide molecules on average.

(11) polyoxypropylene alkyl or alkenyl ethers wherein the alkyl or alkenyl group has 10 to 20 carbon atoms on average and the polyoxypropylene moiety is derived 13 t I from 1 to 20 propylene oxide molecules on average.

(12) polyoxybutylene alkyl or alkenyl ethers wherein the alkyl or alkenyl group has 10 to 20 carbon atoms on average and the polyoxybutylene moiety is derived from 1 to 20 butylene oxide molecules on average.

(13) ethylene oxide and propylene oxide or butylene oxide adducts, at a molar ratio of ethylene oxide propylene oxide or butylene oxide ranging 0.1 9.9 to 9.9 0.1, of alkyl or alkenyl ethers, wherein the adducts have 1 to 30 the above-described alkylene oxide units per molecule on average and the alkyl or alkenyl group has 10 to 20 carbon atoms on average.

0* (14) higher fatty acid alkanolamides and adducts thereof with alkylene oxide represented by the following general formula: a R12

L

R CON c

\(CHCHZO).H

R1z S. wherein R 11 represents an alkyl o* alkenyl group having 10 to 20 carbon atoms; R 12 represents a hydrogen atom or a methyl group; n is an integer of 1 to 3; and m is 0 or an integer of 1 to 3.

14 esters of sucrose with fatty acids having 10 to carbon atoms on average.

(16) monoesters of glycerol with fatty acids having to 20 carbon atoms on average.

(17) alkylamine oxides represented by the following general formula:

R'

1

I

R'

wherein R 13 represents an alkyl or alkenyl group having 10 to 20 carbon atoms; and R 14 and R1 5 each represent an alkyl group having 1 to 3 carbon atoms.

(18) nonionic surfactants commercially available under the trade name of "Pluronic" which is prepared Si by the condensation of ethylene oxide.

(19) cationic surfactants represented by the following general formulae: N 1

R

7 RI I Rt wherein at least one co R 16

R

17

R

18 and R 19 represents an alkyl or alkenyl group having 8 to 15 24 carbon atoms and the others each represent an alkyl group having 1 to 5 carbon atoms; and X' represents a halogen atom or a methylsulfate; No.2

R'

le ERI"-N -CRHzCi 5 3 X'

I

R'

1 wherein R 16

R

1 7

R

18 and X' are each as defined above; ane *N 3 (RZO) ?H

V

CR,6-N -R'13X) (RZ "1o) PH wherein R 16

R

17 and X' are each as defined above;

R

20 represents an alkylene group having 2 to 3 carbon atoms; and p is an integer of 1 to divalent metal ion-sequestering agents Got. One or more builder components selected from among the following compounds, for example, alkali metal salts and alkanolamine salts which may be

V.

present in an amount of 0 to 50% by weight per the bleach or bleaching detergent composition of the present invention: alkali metal salts and alkanolamine salts of 16 phosphoric acids such as orthophosphoric acid, pyrophosphoric acid, triphosphoric acid, meta,phosphoric acid, hexametaphosphoric acid and phytic acid.

alkali metal salts and alkanolamine salts of phosphonic acids such as ethane-1,i-diphosphonic acid, ethane-l, 1, 2-triphosphonic acid, ethane- hydroxy-l 1 diphosphonic acid and their derivatives, ethanehydroxy-l ,i,2-triphosphonic acid, ethane-l ,2dicarboxy-i ,2-diphosphonic acid and methanehydroxy- 'a phospholic acid.

a alkali metal salts and alkanolamine salts of 6 6. phosphono carboxylic acids such as 2-phosphonobutane- 1,2-dicarboxylic acid, I-phosphonobutane-2,3,4tricarboxylic acid and a-methylphosphonosuccinic Oe acid.

alkali metal salts and alkanolamine salts of amino acids such as aspartic acid, glutamic acid and '060* glycine.

alkali metal salts and alk'anolamine salts of aminopolyacetic acids such as nitrilotriacetic acid, iminodiacetic acid, ethylenediaminetetraacetic acid, diethylenetriaminepentaacetic acid, glycoletherdiaminetetraacetic acid, hydroxyethyl.Lininodiacetic acid, tr iethyl enetetramlinehexaace t ic acid and 17 djenkolic acid.

polyelectrolytes such as polyacrylic acid, polyfumaric acid, polymaleic acid, poly-a-hydroxyacrylic acid and polyacetalcarboxylic acid and alkali metal salts and alkanolamine salts thereof.

alkali metal salts and alkanolamine salts of organic acids such as diglycolic acid, oxydisuccinic acid, carboxymethyloxysuccinic acid, citric acid, lactic acid, tartaric acid, oxalic acid, malic ac2, oxydisuccinic acid, gluconic acid, carboxymethylsuccinic acid and carboxymethyltartaric acid, among which alkali metal salts are preferable.

S(8) aluminosilicates represented by zeolite A.

alkaline agents and inorganic electrolytes 4 silicates, carbonates and sulfates, among which alkali metal salts, for example, Glauber's salt are preferable.

antiredeposition agents 444 polyethylene glycol, polyvinyl alcohol, **4 polyvinylpyrrolidone and carboxymethylcellulose.

4 enzymes 44 protease, lipase, amylase and cellulase.

fluorescent dyes salts of 4,4'-bis(2-sulfostyryl)-biphenyl, salts of 4,4'-bis(4-chloro-3-sulfostyryl)-biphenyl, 18 2-(stylphenyl)naphthothiazole derivatives, 4,4'-bis- (triazol-2-yl)stilbene derivatives and bis(triazinylamino)stilbene disulfonic acid derivatives.

stabilizers for peroxides magnesium salts such as magnesium sulfate, magnesium silicate, magnesium chloride, magnesium silicofluoride, magnesium oxide and magnesium hydroxide; and silicates such as sodium silicate.

perfumes and dyestuffs or coloring matters The bleach or bleaching detergent composition according to the present invention exhibits not only 4 an excellent bleaching effect but also an excellent 6 detergency against sebum and mud dirts. Further, even when it i applied to colored or patterned soft goods, materials, cloths, fabrics and the like, it does not cause the discoloration of the soft goods, etc..

'.Furthermore, the bleach activator used in the bleach or bleaching detergent composition according to t'present invention is biodegradable, being extremely safe for the human bodies.

Examples The present invention wll. now be described by referring to the following Examples, though the present invention is not limited to it.

19

I

Example 1 Bleach compositions were prepared according to the formulations specified in Table 1 and subjected to the following bleaching test and discoloration test: Bleaching Test Preparation of tea-stained cloth: g of Nitto black tea (yellow package) was dipped in 3 4 of deionized Water, and was boiled for about 15 minutes and filtered through a desized bleached cotton cloth. A cotton shirting cloth 2003 was dipped in the obtained filtrate, followed by 4 boiling for about 15 minutes. The boiled liquid was taken off the fire and allowed to stand for about 2 hours. The cloth was dried spontaneously, washed with water until the washings became colorless, dehydrated, pressed and cut into a test piece of 10 cm x 10 cm.

This test piece was used in the following determination.

6066 i* Determination of rate of bleaching: Each bleaching composition specified in Table 1 i* V was added to 300 ml of water at 20*C so as to give an

S

available oxygen content of 0.04%. The tea-stained cloth prepared above was dipped in the solution for minutes, washed with water and dried. The rate of bleaching of the resulting cloth was determined 20 according to the following formula: Rate of bleaching of tea-stained cloth: rate of bleaching (reflectance after (reflectance before bleaching) bleaching) x 100 (reflectance of (reflectance before white cloth) bleaching) Each reflectance was determined with a reflectometer NDR-101 DP (mfd. by Nippon Denshoku Kogyo) with a flter of 460 nm. The results are given in Table 1.

Discoloraticn Test Each bleach composition specified in Table 1 was dissolved in tap water at 40°C so as to give an 0e available oxygen content of 0.04%. A cotton cloth dyed with a direct dye (Sumilight Supra Blue FBGL) was S. dipped in the solution prepared above, dried and examined for discoloration with a gray scale for discoloration according to JIS L 0804. Cases wherein the grade was 4.5 or above is shown by cases wherein the grade was 4 or above but below 4.5 is S* shown by cases wherein the grade was 3 or above but below 4 is shown by and cases wherein the grade was below 3 is shown by The results are set forth in Table 1.

21 *5 s *c CC.

*r C *S

S*

S S aC S S St e as S SC.

Table 1 Invention Comp.

1 2 3 4 5 7 8 9 10 11 12 sodium percarbonate 60 60 60 60 60 60 60 60 60 60 60 compound Ca)* 13 13 13 compound 16 16 16 compound 17 17 17 compound 26 comound (e)I 17 Bleach compound (1)2 0.2 1- 1.2 composition X by weight) compound (jjy2 0.3 1.6 compound (iiiY* 0.3 compound (iv) 2 10 -0 compound f(v) 2 0.02 TAED (tetraacetyl 3.6 ethylene diamine) Glauber's salt B* B' 3

B*

3

B

3

B'

3

B*

3

B'

3

B

3 B*3 B* 3

B*

3

B*

rate of bleaching 45 44 43 41 43 44 34 43 33 43 29 22 Resultsdiscoloration 1 discoloration IaI o ~I a o o o o i o a note) *1)l These compounds are described previously as component The amount of these compounds (bleach activators) is one-sixteenth by equivalent as much as sodium percarbonate (available oxygen content: 13.5%).

These compounds are described previously as component B is an abbreviation of balance.

The invention being thus described, it will be obvious that the same may be varied in many ways.

Such variations are not ~o be regarded as a departure from the spirit and scope of the irwention~ and all such modj4i.~ations as would be obvious to one sktlled in the art al2e intended to be included within the scope of the following claims.

S* i~ SI 0 *4 0~ 4 0 S. i .5

S.

S

S. 0

S

6565 0 .0 a. S. 4 SS a -23

Claims

1. A bleaching or bleaching detergent composition comprising: hydrogen peroxide or a peroxide wh-u h generates hydrogen peroxide in an aqueous solution thereof, a quaternary ammonium compound having the general formula 0 R 0 SO" il I -V x R -O (1) R 3 in which R I is, either a straight- or branched- chain, substituted or unsubstituted, alkyl having 1 to 20 carbon atoms or alkehyl having 2 to carbon atoms, R 2 and R 3 are, each independently an alkyl having 1 to 3 carbon atoms, and A and B are, each independently, either a straight- or 24 branched-chain, substituted or unsubstituted, an alkylene having 2 to 20 carbon atoms, and an amide derivative having the general formula (II); 0 Rz 11 R -C-NH- A-N (II) R 3 in which R 1 R 2 R 3 and A are defined above; and wherein the weight ratio of is in the range of from 100/0,01 to 100/5.

2. The composition as claimed in claim 1, wherein R 1 in the formulae and (II) is, either a straigh.- or branched-chain, alkyl having 1 to 20 carbon atoms and having at least one substituent selected from the group consisting of a hydroxyl group and a halogen atom or al'-nyl having 2 to 20 carbon atoms and having at lea 'nte substituent selected from the group con, 4ng of a hydroxyl ,.ip and a halogen atom.

3. The composition as claimed in claim 1, wherein R 1 in the formulae and (II) is, either a straight- or branched-chain, alkyl having 1 to 9 carbon atoms.

4. The composition as claimed in claim 1, wherein R 1 in the formulae and (II) is a straight-chain 25 alkenyl having 2 to 17 carbon atoms.

The composition ar claimed in claim 1, wherein A and B in the formulae and (II) are, each independently, a straight-chain alkylene having 2 to carbon atoms.

6. The composition as claimed in claim 1, wherein the molar ratio of component (a)/component is in the range of from 99.9/0.1 to 20/80.

7. The composition as claimed in claim 1, wherein a molar ratio of component (a)/component is in the range of from 99/1 to 50/50.

8. The composition as claimed in claim 1, wherein the -aea ratio of component (b)/component is in the range if from 100/0.1 to 100/4.

9. The composition as claimed in claim 1, which further comprises at least one component selected from the group consisting of a bleach activator other than component a surfactant, a divalent metal ion- *LO. sequestering agent, an alkaline agent, an inorganic electrolyte, an antiredepositioh agent, an enzyme, a fluorescent dye, a stabilizer for the peroxide, a perfume and a coloring matter in an effective amount thereof. 26 27 A bleach or bleaching detergent composition, substantially as hereinbefore described with reference to the Examples, 11 Thestps,;EatUQS cop--1--a and 4opua dis'"_'herein or referred to or indicated in the specification or claims of this application, individually or collec ely, and any and all combinations rK1o Corpo-~rtion o a~ t o ztue see* 0 k~ ABSTRACT A bleach or bleaching detergent composition which can be applied to colored or patterned soft goods, materials, cloths, fabrics and the like with the discoloration of the soft goods, etc. being inhibited sufficiently comprising: hydrogen peroxide or a peroxide which liberates hydrogen peroxide in an aqueous solution thereof, a quaternary ammonium compound having the general formula 0 Rz 0 SOr- 11 I II R'-C-NH-A-NB-C-B -O (I) R 3 b 0e in which R 1 is, either a straight- or branched- 0* chain, substituted or unsubstituted, alkyl having 1 to 20 carbon atoms or alkenyl having 2 to Scarbon atoms, R 2 and R 3 are, each independently an 6e°* alkyl having 1 to 3 carbon atoms, and A and B are, each independently, either a straight- or to*0 0*0• branched-chain, substituted or unsubstituted, alkylene having 2 to 20 carbon atoms; and an amide derivative having the general formula (II); 0 Rz (I C-NH- A -N BR 3 in which R 1 R 2 R 3 and A are defined above, and wherein the weight :atio of is in the range of from 100/0.01 to 100/5.