Claims
- 1. A polysiloxane of formula I ##STR12## wherein A denotes a di- or three-valent apliphatic or cycloaliphatic-aliphatic residue with 2-15 C atoms in the molecule, R.sub.1 and R.sub.2 each denote methyl, ethyl, propyl or phenyl, and wherein R.sub.1 and R.sub.2 on the same Si atom denote identical substituents and within the siloxane chain denote different substituents, R.sub.3 denotes an alkylene with 2-8 C atoms interrupted by a ##STR13## n denotes the number 2 or 3 and x denotes a number from 2 to 20.
- 2. A polysiloxane according to claim 1, wherein in the formula II ##STR14## R denotes a di- or three-valent aliphatic or cycloaliphatic-aliphatic residue with 2-10 C atoms in the molecule,
- R.sub.1 and R.sub.2 each denote a methyl, ethyl, propyl or phenyl, and whereby R.sub.1 and R.sub.2 on the same Si atom denote identical substituents and within the poly-siloxane chain denote different substituents, R.sub.3 denotes an alkylene with 2-8 C atoms interrupted by a ##STR15## group, n denotes the number 2 or 3 and x denotes a number from 2 to 20.
- 3. A polysiloxane of the formula ##STR16## wherein A is the residue from hydroxypivalic acid neopentyl glycol ester, R.sub.1 and R.sub.2 are each methyl on one silicon atom and are each phenyl on the alternate silicon atom in the polysiloxane chain, R.sub.3 denotes 2-ethyl-3-propylpropylene, n denotes 2, and x denotes 2.
Priority Claims (1)
Number |
Date |
Country |
Kind |
004107/74 |
Mar 1974 |
CH |
|
Parent Case Info
This is a Divisional of application Ser. No. 558,996 filed on Mar. 17, 1975.
US Referenced Citations (7)
Divisions (1)
|
Number |
Date |
Country |
Parent |
558996 |
Mar 1975 |
|