US 4,049,676 A · Sulfolanyloxyalkyl cyclic polysiloxanes

Abstract

Provided as novel compositions are sulfolanyloxyalkylheptaalkylcyclotetrasiloxanes. The cyclic polysiloxanes of the invention are especially useful as monomers for the formation of higher molecular weight polymers comprising difunctional dialkylsiloxy units in combination with difunctional sulfolanyloxyalkylmonoalkylsiloxy units.

Claims6

Dependent claims

Sulfolanyloxyalkylheptaalkylcyclotetrasiloxanes having the general formula, ##STR11## wherein:

--R'-- is bivalent alkylene of two to eight carbon atoms;
R is alkyl of one to ten carbon atoms;
and R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are independently hydrogen or alkyl of one to four carbon atoms.

Dependencies are inferred from the claim text.

Facts

Application

05/592,092Filed 30 Jun 1975

Granted

20 Sep 1977

Term ends

Not estimatedThe source records don’t support an estimate.

Classification6 codes

C07F 7/21
Silicon compounds: cyclic compounds having at least one ring containing silicon, but no carbon in the ring
C08G 77/28
Containing silicon bound to organic groups containing atoms other than carbon, hydrogen and oxygen: sulfur-containing groups
Y10S 516/01
Colloid systems and wetting agents; subcombinations thereof; processes of: wetting, emulsifying, dispersing, or stabilizing agents
C07F
Acyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen

Abstract

Claims6

Dependent claims

Sulfolanyloxyalkylheptaalkylcyclotetrasiloxanes having the general formula, ##STR11## wherein:

--R'-- is bivalent alkylene of two to eight carbon atoms;
R is alkyl of one to ten carbon atoms;
and R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are independently hydrogen or alkyl of one to four carbon atoms.

Dependencies are inferred from the claim text.

Sulfolanyloxyalkyl cyclic polysiloxanes

Life of this patent

Abstract

Claims6

Sulfolanyloxyalkyl cyclic polysiloxanes

Life of this patent

Abstract

Claims6