Patent US3762013A successfully refreshed from Google Patents.
Patent US4736014A successfully refreshed from Google Patents.
US4736014A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water-soluble polycoesters, process for their preparation, and their use
Assignee: Sanofi Aventis Deutschland GmbH
•
Filing: 1985-05-17
•
Granted: 1988-04-05
•
Expires: 2005-05-17
Abstract
Abstract Polycoester of the formula I E--CO--R--CO--O--R.sup.1 --O--CO--R--CO).sub.n E.sup.1 (I) in which R is 60 to 85 mol % 1,3-phenylene radicals, 5 to 20 mol % tetramethylene radicals and 10 to 20 mol % for example radicals of the formula IIa ##STR1## R 1 is 60 to 95 mol % ethylene radicals (--CH 2 CH 2 --), 0 to 28 mol % 2,2-dimethyl-1,3-propylene radicals and 5 to 12 mol % polyoxyethylene radicals having an average molecular weight up to 600 and R 2 denotes for example SO 3 H and E, E 1 denote for example --OH and n is a sufficiently large number that the polycoester has an average molecular weight between 15,000 and 40,000, are used in the form of their aqueous solutions as sizing agents.
Inventors
- 👤 Friedrich Engelhardt
- 👤 Karl Hintermeier
- 👤 Rolf Kleber
- 👤 Peter Klein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:56
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/68; D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/507; C08G63/66; C08G63/668; C08G63/672; C08G63/688; C08G63/6884; C08G63/6886; D06M2101/00; D06M2101/16; D06M2101/30; D06M2101/32; D06M2200/00; D06M2200/40
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
158 words
A polycoester having a flow point between 220° and 280° C. of the general formula I E--CO--R--CO----O--R.sup.1 --O--CO--R--CO).sub.n E.sup.1 (I) in which R is on average 60 to 85 mol % 1,3-phenylene radicals, 5 to 20 mol % tetramethylene radicals and 10 to 20 mol % radicals of the formula IIa and/or IIb ##STR4## R 1 is on average 60 to 95 mol % ethylene radicals (--CH 2 CH 2 --), 0 to 28 mol % 2,2-dimethyl-1,3-propylene radicals and 5 to 12 mol % polyoxyethylene radicals having an average molecular weight up to 600 and R 2 =SO 3 M or --OCH 2 CH 2 CH 2 SO 3 M, E, E 1 =--OM, alkoxy having 1 to 4 C atoms or the radical --O--R 1 --OH, M denotes a proton, an alkali metal cation or an ammonium ion and n is a sufficiently large number that the polycoester has an average molecular weight between 15,000 and 40,000.
Claim 2
Dependent Claim
158 words
A polycoester having a flow point between 220° and 280° C. of the general formula I E--CO--R--CO----O--R.sup.1 --O--CO--R--CO).sub.n E.sup.1 (I) in which R is on average 60 to 85 mol % 1,3-phenylene radicals, 5 to 20 mol % tetramethylene radicals and 10 to 20 mol % radicals of the formula IIa and/or IIb ##STR4## R 1 is on average 60 to 95 mol % ethylene radicals (--CH 2 CH 2 --), 0 to 28 mol % 2,2-dimethyl-1,3-propylene radicals and 5 to 12 mol % polyoxyethylene radicals having an average molecular weight up to 600 and R 2 =SO 3 M or --OCH 2 CH 2 CH 2 SO 3 M, E, E 1 =--OM, alkoxy having 1 to 4 C atoms or the radical --O--R 1 --OH, M denotes a proton, an alkali metal cation or an ammonium ion and n is a sufficiently large number that the polycoester has an average molecular weight between 15,000 and 40,000.
Claim 3
Dependent Claim
36 words
Polycoester as claimed in claim 1, wherein R is on average 60 to 80 mol % 1,3-phenylene radicals, 10 to 20 mol % tetramethylene radicals and 10 to 20 mol % radicals of the formula IIa.
Claim 4
Dependent Claim
48 words
Polycoester as claimed in claim 1 and/or 2 wherein R 1 is on average 68 to 90 mol % ethylene radicals (--CH 2 --CH 2 --), 5 to 20 mol % 2,2-dimethyl-1,3-propylene radicals and 5 to 10 mol % polyoxyethylene radicals having an average molecular weight of 600.
Claim 5
Dependent Claim
21 words
Polycoester as claimed in one or more of claims 1 to 3, wherein its molecular weight is between 20,000 and 40,000.
Claim 6
Dependent Claim
22 words
Polycoester as claimed in one or more of claims 1 to 4, wherein its flow point is between 230° and 270° C.
Claim 7
Dependent Claim
193 words
Process for preparing the polycoester of one or more of claims 1 to 5, which comprises esterifying of transesterifying 100 mol % a dicarboxylic acid component comprising 60 to 85 mol % isophthalic acid and/or its lower alkyl esters and 5 to 20 mol % adipic acid and/or its lower alkyl esters and 10 to 20 mol % an acid of the formula Va and/or Vb ##STR5## in which R 3 =SO 3 M 1 or --OCH 2 CH 2 CH 2 SO 3 M 1 and M 1 denotes an alkali metal cation and/or its lower alkyl ester with (based on 100 mol % the dicarboxylic acid component) 120 to 265 mol % a diol component comprising 115 to 225 mol % ethylene glycol, 0 to 28 mol % neopentyl glkycol and 5 to 12 mol % one or more polyethylene glycols of the formula IV HOCH.sub.2 CH.sub.2 O--CH.sub.2 CH.sub.2 O).sub.m CH.sub.2 CH.sub.2 OH (IV) where m is a number from 0 to 12, at temperatures up to 235° C. and then polycondensing at temperatures up to 300° C. until the polycoester formed has an average molecular weight between 15,000 and 40,000.
Claim 8
Dependent Claim
24 words
Process as claimed in claim 6, wherein the polycondensation is continued until the polycoester formed has an average molecular weight between 20,000 and 40,000.
Claim 9
Dependent Claim
61 words
Process as claimed in claim 6 and/or 7, wherein 100 mol % a dicarboxylic acid component which is 60 to 80 mol % isophthalic acid and/or its lower alkyl esters, 10 to 20 mol % adipic acid and/or its lower alkyl esters and 10 to 20 mol % an acid of the formula Va and/or its lower alkyl esters are used.
Claim 10
Dependent Claim
56 words
Process as claimed in one or more of claims 6 to 8, wherein 140 to 230 mol % a diol component comprising 130 to 190 mol % ethylene glycol, 5 to 20 mol % neopentylglycol and 5 to 10 mol % polyethylene glycol of the formula IV are used per 100 mol % the dicarboxylic acid.
Claim 11
Dependent Claim
38 words
Process as claimed in one or more of claims 6 to 9, wherein the esterification or transesterification is carried out at temperatures of 170° to 200° C. and the condensation at adjoining upper temperatures up to 285° C.
Claim 12
Dependent Claim
17 words
Use of a polycoester of one or more of claims 1 to 5 as a sizing agent.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-04-05 | 1991-10-05 | 1992-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-04-05 | 1995-10-05 | 1996-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-04-05 | 1999-10-05 | 2000-04-05 | $7700.00 | Window Closed / Lapsed |