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US4618457A Expired / Lapsed US ⏱️ 0.0 years remaining

Sulfonated polyoxyalkylene ethers of 1,2 or 1,3-diols, their preparation and use

Assignee: Evonik Operations GmbH
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Filing: 1985-03-01
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Granted: 1986-10-21
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Expires: 2005-03-01
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Abstract

Abstract Sulfonated polyoxyalkylene ethers of the formula R.sup.1 CH.sub.2 O--(C.sub.2 H.sub.4 O--).sub.n (C.sub.3 H.sub.6 O--).sub.m CH 2 CHR 3 CH 2 --SO 3 X in which R 1 is ##STR1## R2 is CH 3 --, C 2 H 5 --, or C 3 H 7 --, R 3 is H-- or CH 3 --, X is H--, alkali metal or ammonium ion, n is 0 to 100, m is 0 to 50, and n+m is not less than 1. The compounds are prepared by adding a compound of formula HSO 3 X in a known manner by a free radical reaction in the presence of catalysts and optionally at an elevated temperature to compounds of the formula R.sup.1 CH.sub.2 O--(C.sub.2 H.sub.4 O--).sub.n (C.sub.3 H.sub.6 O--).sub.m CH 2 CHR 3 ═CH 2 . The inventive compounds can be used as the only or a partial polyol component for the preparation of curable, polyurethane-based adhesives and increase the combined tensile and shear strength and the floating roller peel strength of the adhesive bonds.

Inventors

  • 👤 Eberhard Esselborn
  • 👤 Jurgen Fock

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 13:49
CPC Classifications
C; C08; C08G; C08G65/00; C08G65/02; C08G65/32; C08G65/321; C08G65/324; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/48; C08G18/50; C08G18/5072; C08G65/326

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 72 words
Compounds having the formula R.sup.1 CH.sub.2 O--(C.sub.2 H.sub.4 O--).sub.n (C.sub.3 H.sub.6 O--).sub.m CH.sub.2 CHR.sup.3 CH.sub.2 --SO.sub.3 X in which R 1 is ##STR7## R2 is CH 3 --, C 2 H 5 --, or C 3 H 7 --, R 3 is H-- or CH 3 --, X is H--, alkali metal or ammonium ion, n is 0 to 100, m is 0 to 50, and n+m is not less than 1.
Claim 2
Dependent Claim 72 words
Compounds having the formula R.sup.1 CH.sub.2 O--(C.sub.2 H.sub.4 O--).sub.n (C.sub.3 H.sub.6 O--).sub.m CH.sub.2 CHR.sup.3 CH.sub.2 --SO.sub.3 X in which R 1 is ##STR7## R2 is CH 3 --, C 2 H 5 --, or C 3 H 7 --, R 3 is H-- or CH 3 --, X is H--, alkali metal or ammonium ion, n is 0 to 100, m is 0 to 50, and n+m is not less than 1.

References Cited (Backward Citations)

US3583941A Cited
US3592796A Cited
US3879450A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1989-10-20 1990-04-21 1990-10-21 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1993-10-20 1994-04-21 1994-10-21 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1997-10-20 1998-04-21 1998-10-21 $7700.00 Window Closed / Lapsed

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