Patent US4983425A successfully refreshed from Google Patents.
US4983425A
Expired / Lapsed
US
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Vapor phase hardening of curable organic compounds
Assignee: ISP Investments LLC
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Filing: 1989-09-01
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Granted: 1991-01-08
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Expires: 2009-09-01
Abstract
Abstract This invention relates to a process for hardening a curable normally liquid hydrocarbon compound optionally substituted with an alkyloxy, ester aldehyde, amido, halo, sulfonate, sulfate, sulfite, mercapto or nitro group and containing at least one functional radical selected from the group of ##STR1## and --(X)C═C(Z)--Y--(CH.sub.2)-- wherein Y is --O--, --S-- or --NH-- and X and Z are each independently hydrogen, alkylene having from 1 to 20 carbon atoms, aryl or a mixture thereof, which process comprises contacting said liquid for less than one minute with a hardening amount of a volatilized hard Lewis acid under anhydrous conditions and at a hardening temperature below the deformation temperature of any substrate material which may be used to support said liquid.
Inventors
- 👤 Fulvio J. Vara
- 👤 James A. Dougherty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:04
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/80; C04B41/81; C04B41/82; C04B41/83; B; B05; B05D; B05D3/00; B05D3/04; B05D3/0433; B05D3/0453; B05D3/046; C03; C03C; C03C17/00; C03C17/28; C03C17/32; C04B41/45; C04B41/46; C04B41/48; C09; C09D; C09D4/00; C09D4/06
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
71 words
A process for curing a curable normally liquid ether, thioether or imine material by contacting said material for less than 1 minute in a treating zone with an effective polymerizing amount of a volatile, hard Lewis acid in the vapor state in an anhydrous atmosphere at a temperature below the deformation temperature of any substrate used as a support for said material to produce a hardened, moisture and oxidation resistant product.
Claim 2
Dependent Claim
71 words
A process for curing a curable normally liquid ether, thioether or imine material by contacting said material for less than 1 minute in a treating zone with an effective polymerizing amount of a volatile, hard Lewis acid in the vapor state in an anhydrous atmosphere at a temperature below the deformation temperature of any substrate used as a support for said material to produce a hardened, moisture and oxidation resistant product.
Claim 3
Dependent Claim
71 words
The process of claim 1 wherein said curable material is a hydrocarbon compound optionally substituted with an alkyloxy, ester, aldehyde, amido, halo, sulfate, sulfonate, sulfite, mercapto or nitro group and containing at least one radical selected from the group of ##STR3## and --(X)C═C(Z)--Y--(CH.sub.2)-- wherein Y is --O--, --S-- or --NH-- and X and Z are each independently hydrogen, alkylene having from 1 to 20 carbon atoms, aryl or a mixture thereof.
Claim 4
Dependent Claim
17 words
The process of claim 2 wherein said curable material is a mixture of monomeric and polymeric compounds.
Claim 5
Dependent Claim
34 words
The process of claim 1 wherein said curable material is coated on a plastic substrate prior to treatment and wherein said curing is effected at a temperature below the deformation temperature of said substrate.
Claim 6
Dependent Claim
21 words
The process of claim 4 wherein said curing is effected at a temperature between about 10° C. and about 60° C.
Claim 7
Dependent Claim
19 words
The process of claim 1 wherein said volatile acid is a boron halide or lower alkyl etherate complex thereof.
Claim 8
Dependent Claim
18 words
The process of claim 6 wherein said volatile acid is a mixture of boron trifluoride and hydrogen fluoride.
Claim 9
Dependent Claim
26 words
The process of claim 1 wherein the curing is carried out under a slight vacuum sufficient to prevent escape of acid vapors from the treating zone.
Claim 10
Dependent Claim
15 words
The process of claim 2 wherein said mixture is a mixture of aromatic vinyl ethers.
Claim 11
Dependent Claim
26 words
The process of claim 3 wherein said mixture is a mixture containing the divinyl ether of ethoxylated resorcinol monomer and diglycidyl ether of bisphenol A polymer.
Claim 12
Dependent Claim
25 words
The process of claim 3 wherein said mixture is a mixture containing the divinyl ether of ethoxylated resorcinol monomer and polyglycidyl ether of phenol-formaldehyde resin.
Claim 13
Dependent Claim
25 words
The process of claim 2 wherein said mixture is a mixture containing 3,4-epoxycyclohexyl methyl 3',4'-epoxycyclohexyl carboxylate monomer and the divinyl ether of ethoxylated bisphenol monomer.
Claim 14
Dependent Claim
39 words
The process of claim 1 wherein the volatile, hard Lewis acid is employed in admixture with an inert gas and wherein the concentration of said acid in said inert gas is between about 0.01 and about 15 wt. %.
Claim 15
Dependent Claim
24 words
The process of claim 13 wherein the concentration of said acid is between about 0.5 and about 5 wt. % of said gaseous mixture.
Claim 16
Dependent Claim
23 words
The process of claim 13 wherein said inert gas is selected from the group consisting of nitrogen, helium, carbon dioxide, oxygen and ozone.
References Cited (Backward Citations)
US4396649A
Cited
US4766252A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1994-01-07 | 1994-07-09 | 1995-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-01-07 | 1998-07-09 | 1999-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-01-07 | 2002-07-09 | 2003-01-08 | $7700.00 | Window Closed / Lapsed |