Silicon-containing polytrimethylene homo- or copolyether composition
OwnerHoward Nginventor
Life of this patent
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Abstract
A silicon-containing polytrimethylene homo- or copolyether wherein at least a portion of the polymer end groups are silicon-containing end groups having the formula: —OSi(X)(Y)(Z), where X and Y are groups that are easily displaceable from silicon by reaction with water and/or alcohols, and Z is selected from the group consisting of (a) C1-C20 linear or branched alkyl groups, (b) cycloaliphatic groups, (c) aromatic groups, each of (a), (b) and (c) being optionally substituted with a member selected from the group consisting of O, N, P and S, (d) hydrogen, and (e) groups that are easily displaceable from silicon by water and/or alcohol.
Claims32
A silicon-containing polytrimethylene homo- or copolyether wherein at least a portion of the polymer end groups are of the formula —O—Si(X)(Y)(Z), wherein X and Y, which may be the same or different, are groups that are easily displaceable from silicon by reaction with water and/or alcohols, wherein Z is selected from the group consisting of:
- (a) C1-C20 linear or branched alkyl groups, (b) cycloaliphatic groups, (c) aromatic groups, each of (a), (b) and (c) being optionally substituted with a member selected from the group consisting of O, N, P and S;
- (d) hydrogen, and (e) groups that are easily displaceable from silicon by water and/or alcohol, and
- wherein from about 50 to 100 mole percent of the repeating units of the polytrimethylene homo- or copolyether are trimethylene ether units.
A process for preparing a silicon-containing polytrimethylene homo- or copolyether comprising:
- providing reactants comprising:
- (a) polytrimethylene homo- or copolyether ether glycol, and
- (b) a silicon-containing reactant of the formula:
- Si(W)(X)(Y)(Z), where W, X and Y are groups that are easily displaceable from silicon by reaction with water and/or alcohols, and Z is selected from the group consisting of:
- (i) C1-C20 linear or branched alkyl groups, (ii) cycloaliphatic groups, (iii) aromatic groups, each of (i), (ii) and (iii) being optionally substituted with a member selected from the group consisting of O, N, P and S, (iv) hydrogen, and (v) groups that are easily displaceable from silicon by water and/or alcohol, and
- carrying out the reaction of the polytrimethylene homo- or copolyether ether glycol and the silicon-containing reactant at elevated temperature.
A silicon-containing polytrimethylene homo- or copolyether prepared by a process comprising providing and reacting (i) polytrimethylene homo- or copolyether containing from about 50 to 100 mole percent trimethylene ether units, based upon the repeating units of the polytrimethylene homo- or copolyether, and (ii) at least one silane selected from the group consisting of tetramethoxysilane, tetraethoxysilane, tetrapropoxysilane, methyltrimethoxysilane, methyltriethoxysilane, methyltripropoxysilane, ethyltrimethoxysilane, ethyltriethoxysilane, ethyltripropoxysilane, propyltrimethoxysilane, propyltriethoxysilane, propyltripropoxysilane, isobutyltrimethoxysilane, isobutyltriethoxysilane, isobutyltripropxysilane, octyltrimethoxysilane, octyltriethoxysilane, octyltripropoxysilane, isooctyltrimethoxysilane, isooctyltriethoxysilane, isooctyltripropoxysilane, vinyltrimethoxysilane, vinyltriethoxysilane, vinyltripropoxysilane, phenyltrimethoxysilane, phenyltriethoxysilane, phenyltripropoxysilane.
A silicon-containing polytrimethylene homo- or copolyether prepared by a process comprising providing and reacting (i) polytrimethylene homo- or copolyether ether glycol containing from about 50 to 100 mole percent trimethylene ether units, based upon the repeating units of the polytrimethylene homo- or copolyether, selected from the group consisting of (i) polytrimethylene ether glycol, (ii) poly(trimethylene-ethylene ether) glycol, and (iii) random poly(trimethylene ether ester), and (ii) at least one tetraalkoxylsilane.
Dependencies are inferred from the claim text.