Claims
- 1. A new water-insoluble polymeric composition having polythiaformal linkages therein, of the formula:
- R.sub.1 --O-A--O--CH.sub.2 --O--O-.sub.n R.sub.2,
- wherein R.sub.1 is selected from the group consisting of hydrogen and the group R.sub.3 --O--CH.sub.2 --; R.sub.2 and R.sub.3 are independently selected from the group consisting of hydrogen and monovalent residues of mono-alcohols and thiadiols, said residues of mono-alcohols being present in the statistical average polymer chain at least to about 20 mole percent of the terminal groups; A is the divalent residue of thiadiol having at least 4 carbon atoms; n is an integer from 2 through 40; said thiadiols selected from the group consisting of primary thiaalkylenes, oxa-thiaalkylenes, polythiaalkylenes, and mixtures thereof; and said mono-alcohols selected from the group consisting of primary alkyls, thiaalkyls, oxa-alkyls, aralkyls, alkenyls, and mixtures thereof.
- 2. The composition of claim 1 in which the divalent residues of thiadiol are a primary thiaalkylene having from 4 to 35 carbon atoms.
- 3. The composition of claim 1 in which the monovalent residues of mono-alcohols are primary alkyl having from 2 to 35 carbon atoms.
- 4. The composition of claim 1 in which the divalent residues of thiadiol are primary thiaalkylenes having 4 to 35 carbon atoms and the monovalent residues of mono-alcohols are primary alkyls having from 2 to 35 carbon atoms.
- 5. The composition of claim 1 which is the liquid phase reaction product of primary thiadiol, formaldehyde, and mono-alcohol.
- 6. The composition of claim 5 in which primary thiadiol is thiodiglycol.
- 7. The composition of claim 5 in which the mono-alcohol is 2-ethylhexanol-1.
- 8. The composition of claim 5 in which the primary thiadiol is thiodiglycol and the mono-alcohol is 2-ethylhexanol-1.
- 9. The composition of claim 5 in which the mono-alcohol is selected from the group consisting of primary dodecanol and mixed primary fatty alcohols containing 12 to 13 carbon atoms.
- 10. The composition of claim 1 in which A is the divalent residue of a mixture of the said thiadiol and nonsulfur-containing polyols having from 2 40 carbon atoms, said polyol residue being not more than 60 mole percent of the divalent thiadiol residue.
CROSS-REFERENCE TO RELATED APPLICATIONS
This application is a continuation-in-part of application Ser. No. 300,685 entitled "Novel Plasticizer Compositions and Method for Their Preparation," filed on Oct. 25, 1972, now abandoned.
US Referenced Citations (8)
Non-Patent Literature Citations (2)
Entry |
Lienhard et al.; J. Am. Chem. Soc. 88, pp. 3982-3995 (1966). |
Walker; "Formaldehyde" (1963), pp. 279-280. |
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
300685 |
Oct 1972 |
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