US4052349A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Epoxy composition containing a chlorine-containing polyol and its use as an adhesive
Assignee: Olin Corp
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Filing: 1975-10-28
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Granted: 1977-10-04
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Expires: 1995-10-28
Abstract
Abstract An improved epoxy resin composition is disclosed which incorporates a select group of chlorine-containing polyols. The improved composition is used as an adhesive and in various other applications.
Inventors
- 👤 Richard J. Turley
- 👤 Alexandre Ozolins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:40
CPC Classifications
C; C08; C08L; C08L63/00; C08K; C08K5/00; C08K5/04; C08K5/05; C08K5/053; C08K5/06; C08L71/00; C09; C09J; C09J163/00; C08L2666/00; C08L2666/02; C08L2666/14; C08L2666/22; C08L2666/28
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
50 words
A liquid, curable epoxy composition comprised of a. an epoxy resin having more than one α-epoxy group in the molecule, b. a curing agent for said resin, and c. a chlorine-containing polyol having an average of 2-8 hydroxy groups and at least one (2,2-dichlorovinyl) ethylene group in the polyol chain.
Claim 2
Dependent Claim
50 words
A liquid, curable epoxy composition comprised of a. an epoxy resin having more than one α-epoxy group in the molecule, b. a curing agent for said resin, and c. a chlorine-containing polyol having an average of 2-8 hydroxy groups and at least one (2,2-dichlorovinyl) ethylene group in the polyol chain.
Claim 3
Dependent Claim
45 words
The composition of claim 1 wherein said chlorine-containing polyol is prepared by a method comprising first the condensation of a polyhydroxy initiator with 4,4,4-trichloro-1,2-epoxybutane or a mixture thereof with a halogen-free epoxide to form an intermediate chlorinated polyol condensate and (2) dehydrochlorination of said condensate.
Claim 4
Dependent Claim
17 words
The composition of claim 2 wherein said polyhydroxy initiator is a mixture of dextrose and ethylene glycol.
Claim 5
Dependent Claim
13 words
The composition of claim 1 wherein said epoxy resin is a glycidyl ether.
Claim 6
Dependent Claim
28 words
The composition of claim 4 wherein said chlorine-containing polyol has an average of 2-4 hydroxy groups and about 1-6 of said (2,2-dichlorovinyl) ethylene groups per every hydroxy group.
Claim 7
Dependent Claim
42 words
The composition of claim 5 wherein said epoxy resin is a glycidyl ether of a material selected from the group consisting of a bisphenol, a mononuclear dihydric phenol, a mononuclear trihydric phenol, a polynuclear phenol, an aliphatic polyol and a novolac resin.
Claim 8
Dependent Claim
27 words
The composition of claim 6 wherein said chlorine-containing polyol is employed in a proportion of about 25-250 parts per every 100 parts by weight of said resin.
Claim 9
Dependent Claim
53 words
The composition of claim 7 wherein said chlorine-containing polyol is prepared by a method comprising a first step wherein a polyhydroxy initiator is condensed with 4,4,4-trichloro-1,2-epoxybutane, or a mixture thereof with a halogen-freeepoxide, to form an intermediate chlorinated polyol condensate and a second step wherein said condensate is subjected to a dehydrochlorination reaction.
Claim 10
Dependent Claim
29 words
The composition of claim 8 wherein said chlorine-containing polyol has an average of 2-3 hydroxy groups and contains about 2-5 of said (2,2-dichlorovinyl) ethylene groups per every hydroxy group.
Claim 11
Dependent Claim
15 words
The composition of claim 9 wherein said epoxy resin is a glycidyl ether of bisphenol-A.
Claim 12
Dependent Claim
32 words
The composition of claim 10 wherein said first step, in the preparation of said chlorine-containing polyol, comprises condensing a polyhydroxy initiator first with 4,4,4-trichloro-1,2-epoxybutane and then with propylene oxide or ethylene oxide.
Claim 13
Dependent Claim
29 words
The composition of claim 11 wherein said polyhydroxy initiator is selected from the group consisting of ethylene glycol, propylene glycol, butylene glycol, glycerin, trimethylolpropane, triethylolpropane and a mixture thereof.
References Cited (Backward Citations)
US2951829A
Cited
US3720639A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-10-03 | 1981-04-04 | 1981-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-10-03 | 1985-04-04 | 1985-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-10-03 | 1989-04-04 | 1989-10-04 | $7700.00 | Window Closed / Lapsed |