US4667010A
Expired / Lapsed
US
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Crosslinkable linear polyether resin
Assignee: Novartis Corp
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Filing: 1986-01-14
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Granted: 1987-05-19
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Expires: 2006-01-14
Abstract
Abstract Linear polyether resins containing 100 to 10 mol % of the repeating structural unit of formula I <IMAGE> (I) and 90 to 0 mol % of the repeating structural unit of formula II <IMAGE> (II) wherein A is a linear unsubstituted or methyl-substituted alkylene group containing 4 to 100 carbon atoms in the linear alkylene chain, X denotes bridge members as defined in claim 1 and Y is an aromatic radical of a divalent phenol as defined in claim 1, are self-crosslinkable and can be crosslinked by heating to a temperature of not less than 250 DEG C. or by irradiation with energy-rich electromagnetic rays, affording products which are insoluble in organic solvents and which have high glass transition temperatures.
Inventors
- 👤 Sameer H. Eldin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:13
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/28; C08G; C08G65/00; C08G65/34; C08G65/38; C08G65/40; C08G65/4012; C08G75/00; C08G75/20; C08G75/23; C08G2650/00; C08G2650/02; C08G2650/20; C08L; C08L2312/00
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
238 words
A crosslinkable linear polyether resin having a specific viscosity of 0.1 to 2.5, measured at 30° C. in a 2% solution in dimethylformamide, and containing, based on the total amount of structural units present in the polyether resin, 100 to 10 mol % of the repeating structural unit of formula I ##STR14## and 90 to 0 mol % of the repeating structural unit of formula II ##STR15## in which formulae above A is a linear unsubstituted or methyl-substituted alkylene group containing 4 to 20 carbon atoms in the linear alkylene chain, X is a member selected from the group consisting of --SO 2 --, --CO--, --SO--, --N═N--, --CF 2 --CF 2 --, ##STR16## wherein R is C 1 -C 8 alkyl, or is ##STR17## wherein each of R' and R 2 is a hydrogen or a halogen atom, Y is a radical of formula III or IV ##STR18## wherein R 3 and R 4 are the same or different and each is a halogen atom, C 1 -C 4 alkyl or C 1 -C 4 alkoxy, m and n are 0 or an integer from 1 to 4, and Z is a direct bond or a radical selected from the group consisting of --O--, --SO--, --SO 2 --, --S--, --S--S--, or ##STR19## wherein each of R 5 and R 6 independently of the other is a hydrogen atom, C 1 -C 4 alkyl or phenyl, or is ##STR20##
Claim 2
Dependent Claim
238 words
A crosslinkable linear polyether resin having a specific viscosity of 0.1 to 2.5, measured at 30° C. in a 2% solution in dimethylformamide, and containing, based on the total amount of structural units present in the polyether resin, 100 to 10 mol % of the repeating structural unit of formula I ##STR14## and 90 to 0 mol % of the repeating structural unit of formula II ##STR15## in which formulae above A is a linear unsubstituted or methyl-substituted alkylene group containing 4 to 20 carbon atoms in the linear alkylene chain, X is a member selected from the group consisting of --SO 2 --, --CO--, --SO--, --N═N--, --CF 2 --CF 2 --, ##STR16## wherein R is C 1 -C 8 alkyl, or is ##STR17## wherein each of R' and R 2 is a hydrogen or a halogen atom, Y is a radical of formula III or IV ##STR18## wherein R 3 and R 4 are the same or different and each is a halogen atom, C 1 -C 4 alkyl or C 1 -C 4 alkoxy, m and n are 0 or an integer from 1 to 4, and Z is a direct bond or a radical selected from the group consisting of --O--, --SO--, --SO 2 --, --S--, --S--S--, or ##STR19## wherein each of R 5 and R 6 independently of the other is a hydrogen atom, C 1 -C 4 alkyl or phenyl, or is ##STR20##
Claim 3
Dependent Claim
36 words
A polyether resin according to claim 1, which contains 100 to 20 mol % of the repeating structural unit of formula I and 80 to 0 mol % of the repeating structural unit of formula II.
Claim 4
Dependent Claim
36 words
A polyether resin according to claim 1, which contains 50 to 30 mol % of the repeating structural unit of formula I and 70 to 50 ml % of the repeating structural unit of formula II.
Claim 5
Dependent Claim
28 words
A polyether resin according to claim 1, wherein the radical X in formula I and II is --SO 2 --, --CO--, --SO--, --CF 2 --CF 2 --, ##STR21##
Claim 6
Dependent Claim
53 words
A polyether resin according to claim 1, wherein Y in formula II is a radical of the formula III or IV, wherein m and n are 0 and Z is a direct bond or a radical selected from the group consisting of --O--, --SO--, --SO 2 --, --S--, --S--S--, --CH 2 --, ##STR22##
Claim 7
Dependent Claim
26 words
A polyether resin according to claim 1, said resin consisting only of the structural unit of formula I, wherein A is hexamethylene and X is sulfonyl.
Claim 8
Dependent Claim
30 words
A polyether resin according to claim 1, said resin containing the structural units of the formulae I and II, wherein A is hexamethylene, X is sulfonyl and Y is ##STR23##
Claim 9
Dependent Claim
129 words
A process for the preparation of a polyether resin according to claim 1 and containing the repeating structural units of the formulae I and II, which process comprises polycondensing a dihalo compound of formula V ##STR24## in equimolar amounts, with an α,ω-di-(p-hydroxyphenyl)alkane of formula VI ##STR25## or with a mixture of a compound of formula VI and a phenol contained therein in an amount of up to 90 mol %, of the formula VII HO--Y--OH (VII) wherein X, A and Y are as defined in formulae I and II and Hal is a halogen atom, in the presence of alkali and in a polar aprotic solvent, until the resultant polyether resin has a specific viscosity of 0.1 to 2.5, measured at 30° C. in a 2% solution in dimethylformamide.
Claim 10
Dependent Claim
31 words
A product obtained by crosslinking a polyether resin as claimed in claim 1 by heating said resin to not less than 250° C. or by irradiating it with energy-rich electromagnetic rays.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-05-18 | 1990-11-17 | 1991-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-05-18 | 1994-11-17 | 1995-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-05-18 | 1998-11-17 | 1999-05-19 | $7700.00 | Window Closed / Lapsed |