US4954364A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for coating substrates with UV curable epoxysilicone compositions
Assignee: General Electric Co
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Filing: 1989-06-22
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Granted: 1990-09-04
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Expires: 2009-06-22
Abstract
Abstract A method is provided for enhancing the controlled release characteristics of paper or plastic substrates by applying onto the substrate, a UV curable mixture of an epoxysilicone, an arylonium salt catalyst, such as a diaryliodoniumhexafluoroantimonate and a controlled release additive such as a phenolpropyl-substituted methyldisiloxane or an alkylphenol, such as dodecylphenol. The treated plastic or paper substrate is then subjected to UV irradiation to effect a tack-free cure of the UV curable mixture on the substrate.
Inventors
- 👤 Judith Stein
- 👤 Tracey M. Leonard
- 👤 James L. Desorcie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:41
CPC Classifications
C; C08; C08L; C08L83/00; D; D21; D21H; D21H27/00; D21H27/001; C08K; C08K5/00; C08K5/04; C08K5/13; C09; C09D; C09D183/00; C09D183/04; C09D183/06; D21H17/00; D21H17/03; D21H17/05; D21H17/18; D21H19/00; D21H19/10; D21H19/14; D21H19/24; D21H19/32; D21H25/00; D21H25/04; D21H25/06
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
110 words
A method for imparting control release characteristics to a paper or plastic substrate, which comprises, (A) treating the paper or plastic substrate with a UV curable epoxysilicone mixture, and (B) UV curing the treated substrate until a nonsmear tack-free adherent film is formed, where the UV curable epoxysilicone mixture comprises by weight, (C) 100 parts of epoxysilicone having from about 5 to 12 mole percent of condensed epoxyorganosiloxy units based on the total moles of condensed diorganosiloxy units, (D) an effective amount of a photosensitive polyaryloniumhexafluorometalloid salt and (E) 0.1 to 50 parts of a member selected from the class consisting of (i) C.sub.(8-20) alkyl phenols (ii) phenolalkyl substituted organodisiloxanes.
Claim 2
Independent Claim
110 words
A method for imparting control release characteristics to a paper or plastic substrate, which comprises, (A) treating the paper or plastic substrate with a UV curable epoxysilicone mixture, and (B) UV curing the treated substrate until a nonsmear tack-free adherent film is formed, where the UV curable epoxysilicone mixture comprises by weight, (C) 100 parts of epoxysilicone having from about 5 to 12 mole percent of condensed epoxyorganosiloxy units based on the total moles of condensed diorganosiloxy units, (D) an effective amount of a photosensitive polyaryloniumhexafluorometalloid salt and (E) 0.1 to 50 parts of a member selected from the class consisting of (i) C.sub.(8-20) alkyl phenols (ii) phenolalkyl substituted organodisiloxanes.
Claim 3
Dependent Claim
19 words
A method in accordance with claim 1, where the epoxysilicone consists essentially of chemically combined dimethylsiloxy units and methylepoxycyclohexylethylsiloxy
Claim 4
Dependent Claim
16 words
A method in accordance with claim 1, where the controlled release additive is a phenolpropyl-substituted polymethyldisiloxane.
Claim 5
Dependent Claim
14 words
A method in accordance with claim 1, where the controlled release additive is dodecylphenol.
Claim 6
Dependent Claim
13 words
A method in accordance with claim 1, where the iodonium catalyst is (4-octyloxyphenyl)phenyliodoniumhexafluoroantimonate.
Claim 7
Dependent Claim
14 words
A method in accordance with claim 1, where the controlled release additive is nonylphenol.
Claim 8
Dependent Claim
15 words
A method in accordance with claim 3, where the controlled release additive is a tetramethyldisiloxane.
Claim 9
Dependent Claim
15 words
A method in accordance with claim 3, where the controlled release additive is a pentamethyldisiloxane.
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) | 1993-09-03 | 1994-03-05 | 1994-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-09-03 | 1998-03-05 | 1998-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-09-03 | 2002-03-05 | 2002-09-04 | $7700.00 | Window Closed / Lapsed |