Claims
- 1. An organosilicon compound which comprises a polysiloxane comprising one or more siloxane units according to the general formula (i) R.sup.2.sub.m (R"NXR').sub.p SiO.sub.(4-(m+p))/2, and siloxane units according to the general formula (ii) R.sup.2.sub.q (R"NR.sup.4 H).sub.r SiO.sub.(4-(q+r))/2 wherein
- R.sup.2 represents a hydroxyl group, a monovalent hydrocarbon group having up to 8 carbon atoms, a group OR.sup.1 or a group COR.sup.1,
- R.sup.4 represents a hydrogen atom, an alkyl group having 1 to 20 carbon atoms, an alkenyl group or an aryl group,
- R' represents a group R.sup.4 or a group X,
- R" represents a divalent hydrocarbon group which may have nitrogen, sulfur or oxygen present in the carbon chain,
- X represents a group CO(CHR).sub.n OH in which R represents a hydrogen atom or an alkyl group,
- m has the value 0, 1 or 2,
- p has the value 1 or 2,
- q has the value 0, 1, 2 or 3,
- r has the value 0, 1 or 2, and
- n has a value in the range 2 to 7; with the proviso that, the polysiloxane includes both siloxane units (ii) which have groups R"NR.sup.4 H and siloxane units (ii) which have no groups R"NR.sup.4 H.
- 2. An organosilicon compound according to claim 1 wherein R" represents R'"(NR'R'")s wherein R'" represents a divalent hydrocarbon group and s has a value in the range of 0 to 4.
- 3. An organosilicon compound according to claim 2 wherein R'" is selected from the groups --(CH.sub.2).sub.2 --, --(CH.sub.2).sub.3 --, --(CH.sub.2).sub.4 -- or --CH.sub.2 CH(CH.sub.3)CH.sub.2 --.
- 4. A polysiloxane according to claim 1 of the average general formula ##STR10## wherein R'" is selected from the groups --(CH.sub.2).sub.2 --, --(CH.sub.2).sub.3 --, --(CH.sub.2).sub.4 -- or --CH.sub.2 CH(CH.sub.3)CH.sub.2 --, not less than 80% of the groups R.sup.2 are methyl groups, x has an average value from 20 to 1500, y has an average value from 0 to 50 and z has an average value from 0.5 to 50.
- 5. A polysiloxane according to claim 4 wherein R.sub.2 is CH.sub.3, R is H and y:z lies in the range 1:4 to 4:1.
- 6. A polysiloxane according to claim 4 wherein the ratio z:x is less than 5:100.
- 7. A method for the preparation of an organosilicon compound of claim 1 which method comprises heating together under reflux conditions a lactone of the general formula ##STR11## wherein R represents a hydrogen atom or an alkyl group and n has a value in the range 2 to 7 and (A) a silane according to the general formula R.sup.1.sub.a A.sub.b Si(R"NR.sup.4 H).sub.c so that some, but not all, of the amino groups are converted to amido groups and hydrolyzing or condensing the silane produced to provide said organosilicon compound; or (B) a polysiloxane having one or more siloxane units according to the general formula (iii) R.sup.2.sub.q' (R"NR.sup.4 H).sub.r' SiO.sub.(4-q'-r')/2, any remaining siloxane units of the polysiloxane being according to the general formula (iv) R.sup.2.sub.q SiO.sub.(4-q)/2 so that some, but not all, of the amino groups are converted to amido groups wherein
- A represents a hydrolysable group,
- R.sup.1 represents a monovalent hydrocarbon group having up to 8 carbon atoms,
- R.sup.2 represents a hydroxyl group, a group R.sup.1, a group OR.sup.1 or a group COR.sup.1,
- R.sup.4 represents a hydrogen atom, an alkyl group having 1 to 20 carbon atoms, an alkenyl group or an aryl group,
- R" represents a divalent hydrocarbon group which may have oxygen, nitrogen or sulfur in the carbon chain,
- a has the value 0, 1 or 2,
- b has the value 1, 2 or 3,
- c has the value 1 or 2,
- the sum of a+b+c=4,
- q has the value 0, 1, 2, or 3,
- q' has the value 0, 1, or 2, and
- r' has the value 1 or 2.
- 8. A method according to claim 7 wherein the lactone is .gamma. butyrolactone or epsilon caprolactone.
- 9. A method according to claim 7 wherein R.sup.4 represents a hydrogen atom and R" represents, --(CH.sub.2).sub.3 NHCH.sub.2 CH.sub.2 --, --CH.sub.2 CH(CH.sub.3)CH.sub.2 NHCH.sub.2 CH.sub.2 -- or --(CH.sub.2).sub.3 NHCH.sub.2 CH.sub.2 NHCH.sub.2 CH.sub.2 --.
- 10. A method according to claim 7 wherein the amino substituted polysiloxane used comprises up to 5 percent siloxane units according to the general formula (III).
- 11. A method according to claim 7 wherein all the primary amino groups of the amino substituted organosilicon compound are reacted with the lactone.
- 12. A fabric treating material in the form of an aqueous emulsion comprising a polydiorganosiloxane according to claim 1.
- 13. A fabric treating material in the form of an aqueous emulsion comprising a polydiorganosiloxane according to claim 7.
Priority Claims (2)
Number |
Date |
Country |
Kind |
8811601 |
May 1988 |
GBX |
|
8902939 |
Feb 1989 |
GBX |
|
Parent Case Info
This is a continuation of copending application(s) Ser. No. 07/353,300 filed on May 17, 1989 and now abandoned.
US Referenced Citations (3)
Number |
Name |
Date |
Kind |
4104296 |
Pike |
Aug 1978 |
|
4591652 |
DePasquale et al. |
May 1986 |
|
4624794 |
Cooke et al. |
Nov 1986 |
|
Continuations (1)
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Number |
Date |
Country |
Parent |
353300 |
May 1989 |
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