Patent US4845159A successfully refreshed from Google Patents.
US4845159A
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Photoactive and thermally active polymeric iodonium salts, use, and method for making
Assignee: General Electric Co
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Filing: 1987-10-01
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Granted: 1989-07-04
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Expires: 2007-10-01
Abstract
Abstract Iodonation of novolak resin or polyphenylene ether followed by the metatheses of the resulting iodonated product with a polyhalometal or metalloid salt can provide a photoactive cure catalyst or thermally active cure catalyst for cationically polymerizable organic materials. A copper cocatalyst has been found useful in thermal curing.
Inventors
- 👤 Herbert S. Chao
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:20
CPC Classifications
C; C08; C08G; C08G65/00; C08G65/34; C08G65/48; C08G65/485; C08G59/00; C08G59/18; C08G59/68; C08G8/00; C08G8/28
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
91 words
A heat curable composition comprising (A) cationically polymerizable dipolar organic material, (B) an effective amount of a polymerized iodonium salt having chemically combined groups of the formula, [MQ.sup.1 d].sup.- resulting from the metathesis of an iodonated phenol-formaldehyde resin with an alkali metal polyhalo metal salt, where the phenol-formaldehyde resin is initially capped with an organo radical prior to iodonation, and (C) an effective amount of a copper cocatalyst, where M is a metal or metalloid, Q 1 is a halogen radical, and d is an integer having a value of 4-6.
Claim 2
Dependent Claim
91 words
A heat curable composition comprising (A) cationically polymerizable dipolar organic material, (B) an effective amount of a polymerized iodonium salt having chemically combined groups of the formula, [MQ.sup.1 d].sup.- resulting from the metathesis of an iodonated phenol-formaldehyde resin with an alkali metal polyhalo metal salt, where the phenol-formaldehyde resin is initially capped with an organo radical prior to iodonation, and (C) an effective amount of a copper cocatalyst, where M is a metal or metalloid, Q 1 is a halogen radical, and d is an integer having a value of 4-6.
Claim 3
Dependent Claim
79 words
A photocurable composition comprising (A) cationically polymerizable organic material, (B) an effective amount of a polymeric iodonium salt having chemically combined groups of the formula [MQ.sup.1 d].sup.- resulting from the metathesis of an iodonated phenol-formaldehyde resin with an alkali metal polyhalo metal salt, where the phenol-formaldehyde resin is initially capped with an organo radical prior to iodonation, M is a metal or metalloid, Q 1 is a halogen radical and d is an integer having a value of 4-6.
Claim 4
Dependent Claim
79 words
A photocurable composition comprising (A) cationically polymerizable organic material, (B) an effective amount of a polymeric iodonium salt having chemically combined groups of the formula [MQ.sup.1 d].sup.- resulting from the metathesis of an iodonated phenol-formaldehyde resin with an alkali metal polyhalo metal salt, where the phenol-formaldehyde resin is initially capped with an organo radical prior to iodonation, M is a metal or metalloid, Q 1 is a halogen radical and d is an integer having a value of 4-6.
Claim 5
Dependent Claim
13 words
A heat curable composition in accordance with claim 1, where M is antimony.
Claim 6
Dependent Claim
16 words
A heat curable composition in accordance with claim 1 where the copper cocatalyst is copper acetylacetonate.
Claim 7
Dependent Claim
18 words
A photocurable composition in accordance with claim 2, where the cationically polymerizable organic material is an epoxy resin.
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) | 1992-07-03 | 1993-01-02 | 1993-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-07-03 | 1997-01-02 | 1997-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-07-03 | 2001-01-02 | 2001-07-04 | $7700.00 | Window Closed / Lapsed |